To see the other types of publications on this topic, follow the link: Geodetic measurement.
Dissertations / Theses on the topic 'Geodetic measurement'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 46 dissertations / theses for your research on the topic 'Geodetic measurement.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
1
Sauber, Jeanne. "Geodetic measurement of deformation in California." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/58228.
Full textAbstract:
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1989.Includes bibliographical references (leaves 201-219).
by Jeanne Marie Sauber.
Ph.D.
2
Larsen, Shawn. "Geodetic measurement of deformation in southern California /." Diss., Pasadena, Calif. : California Institute of Technology, 1991. http://resolver.caltech.edu/CaltechETD:etd-03102008-095117.
Full text
3
Feigl, Kurt Lewis. "Geodetic measurement of tectonic deformation in central California." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/52948.
Full textAbstract:
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1991.Includes bibliographical references (p. 203-222).
by Kurt Lewis Feigl.
Ph.D.
4
Lu, Shi-Jian. "The significance of atmospheric effects in electronic distance measurement." Thesis, University of Leeds, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278369.
Full text
5
Basker, Guy Ashbourne. "The determination of mean sea level using GPS." Thesis, University of Nottingham, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254467.
Full text
6
Craigie, Dirk Hamish. "The development of a non-contact co-ordinate measurement machine." Master's thesis, University of Cape Town, 1996. http://hdl.handle.net/11427/17479.
Full textAbstract:
Bibliography: pages 113-117.The Department of Surveying and Geodetic Engineering at the University of Cape Town, in conjunction with the Department of Mechanical Engineering at the University of Cape Town have developed a non-contact co-ordinate measurement machine in a project called MILIMAP. The project had the following objectives : 1. To determine unique surface co-ordinates for continuous, complex objects with submillimetre accuracy. 2. The representation of the co-ordinates was to be in a format that could be utilised by a computer numerically controlled (CNC) milling machine in a computer aided design/ computer aided manufacture (CADCAM) environment. 3. The device had to use a non-contact method for data capture. The MILIMAP project was undertaken because there is a demand for co-ordinate measurement machines in industry for the inspection of objects for quality control purposes. Conventional Co-ordinate Measurement Machines (CMMs) are expensive and use a contact probe to measure the object. The contact probe measurement technique is unsuitable for the measurement of non-rigid objects such as shoes and automobile seat padding. The MILIMAP system provides a noncontact measurement technique that can be applied to non-rigid as well as rigid objects. Additional applications in the archaeological field exist for the non-contact measurement of sensitive, historical artefacts. A digital photogrammetric system was developed to measure the position of a laser dot projected onto the surface of the measurement object. This measurement system satisfied the criteria of a non-contact measurement method required for the project. The system utilised three digital CCD cameras to capture images of the laser dot projected onto the object. Image processing software, developed from existing software within the Department of Surveying and Geodetic Engineering, was used to photogrammetrically determine the co-ordinates of the laser dot to sub-millimetre accuracy on the surface of the object. A mechanical device was designed and constructed by the Department of Mechanical Engineering in order to move the laser over the surface of the object, and to rotate the object. The entire surface of the object could be measured by the system using these operations.
7
Bručas, Domantas. "Development and research of the test bench for the angle calibration of geodetic instruments." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080620_092300-91259.
Full textAbstract:
The main idea of current PhD thesis is an accuracy analysis of testing and calibration of geodetic instruments. The object of investigation is an analysis of means and methods for testing and calibration of geodetic instruments for plane angle measurement, development of such calibration equipment, its accuracy investigation and the research of its accuracy increasing possibilities. These objects are important for successful testing or calibration of geodetic instruments for angle measuring which is essential in ensuring the precision of measurements taken in surveying, construction, mechanical engineering, etc.
There are several main goals of the presented work. First one is an analysis of the angle measuring methods and devices suitable for the testing and calibration of geodetic instruments, according to the results of the mentioned analysis the second task can be formulated – creation of a multi-reference plane angle testing and calibration equipment at Institute of Geodesy, Vilnius Gediminas Technical University and investigate the parameters of its accuracy. The third task is to investigate the accuracy increasing possibilities of the equipment, and implementation some of them into the practice.
The thesis consists of four chapters, introduction, conclusions, list of references and appendixes.
Introduction is dedicated for an introduction to the problem and its topicality. There are also formulated purposes and tasks of the work; the used methods and novelty of... [to full text]Disertacijoje nagrinėjamos geodezinių kampus matuojančių prietaisų patikros bei kalibravimo metodai bei priemonės. Pagrindinis tyrimo objektas yra geodezinių prietaisų tikslumo parametrų matavimo būdų ir priemonių analizė, kalibravimo įrenginio kūrimas, jo tikslumo charakteristikų tyrimas bei įrenginio tobulinimas. Šie objektai yra svarbūs vykdant geodezinių prietaisų kalibravimą, kas savo ruožtu yra labai svarbu užtikrinant reikiamą šių prietaisų matavimų tikslumą geodezijoje, statybose, mašinų gamyboje ir t. t. Pagrindinis disertacijos tikslas – geodezinių kampų matavimo prietaisų kalibravimo galimybių analizė ir sukurto kalibravimo įrenginio tikslumo para¬metrų tyrimas. Darbe sprendžiami keli pagrindiniai uždaviniai: plokščiųjų kampų mata¬vimo metodų bei įrenginių, tinkamų geodeziniams prietaisams kalibruoti, analizė; daugiaetalonio kampų kalibravimo stendo kūrimas Vilniaus Gedimino technikos universiteto Geodezijos institute bei jo tikslumo charakteristikų tyri¬mas; stendo tikslumo didinimo galimybių bei priemonių tyrimas, ir apskri¬timinių skalių kalibravimo būdų tobulinimas. Disertaciją sudaro šeši skyriai, įvadas, išvados, literatūros sąrašas bei priedai. Įvade nagrinėjamas problemos aktualumas, formuluojamas darbo tikslas bei uždaviniai, aprašomas mokslinis darbo naujumas, pristatomi autoriaus pranešimai ir publikacijos, disertacijos struktūra. Pirmasis skyrius skirtas labiausiai paplitusių plokščiųjų kampų matavimo būdų bei priemonių tinkamų geodeziniams prietaisams... [toliau žr. visą tekstą]
8
Popovas, Darius. "The Assesment Of The Celestial Body Influence On The Geodetic Measurements." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20120112_100006-03986.
Full textAbstract:
The research work presents the carried out investigations on the effect of the celestial bodies on the gravity field elements and the analysis was made on the Moon’s and Sun’s effect on the geodetic measurements. The results of the research are advised to be implemented for the assessment of the effect of the celestial bodies regarding the geodetic, measurements as well as when selecting the surfaces of the Earth and geoid and the system of gravity.
The dissertation consists of introduction, four chapters and the summation of the results.
The introduction depicts the topicality of the chosen research, determining the relevance of the investigated issue. There are described the objective of the work as well as the tasks, there is revealed the scientific novelty of the work ant etc.
Chapter one deals with the review of the scientific literature. The chapter also presents the analysis of the available methods of the assessment of the Earth’s tides and their accuracies. The scientific literature was analysed extensively in terms of the effect of the celestial bodies on the Earth’s gravity field and on the issues of the geodetic measurements. The problems were indicated concerning the assessment of the effect of the celestial bodies and the tasks were specified for the research work to be investigated.
Chapter 2 deals with the theoretical research. The author presents the analysis of the effect of the members of the series of the tide potential caused by the celestial bodies on... [to full text]Disertacijoje pateikti dangaus kūnų įtakos sunkio lauko elementams tyrimai ir nagrinėjamas Mėnulio ir Saulės poveikis geodeziniams matavimams. Pagrindinis disertacijos tikslas – ištirti ir įvertinti dangaus kūnų poveikį sunkio lauko elementams ir patobulinti dangaus kūnų poveikio geodeziniams matavimams įvertinimo metodikas. Atlikto darbo rezultatus galima panaudoti vertinant dangaus kūnų poveikį geodeziniams, gravimetriniams ir geodezinės astronomijos matavimams, taip pat pasirenkant Žemės ir geoido paviršius bei sunkio sistemą, dangaus kūnų poveikio įvertinimo atžvilgiu. Disertaciją sudaro įvadas, keturi skyriai ir rezultatų apibendrinimas. Įvadiniame skyriuje pagrindžiama tiriamoji problema, apibrėžiamas problemos aktualumas, formuluojamas darbo tikslas bei uždaviniai, aprašomas mokslinis darbo naujumas, pateikiami ginamieji disertacijos teiginiai pristatomos autoriaus publikacijos ir pranešimai konferencijose, aprašoma disertacijos struktūra. Pirmasis skyrius skirtas literatūros analizei. Jame nagrinėjami esami Žemės potvynių įvertinimo metodai ir jų tikslumas. Išanalizuota mokslinė literatūra dangaus kūnų poveikio Žemės sunkio laukui ir geodeziniams matavimams klausimais. Identifikuotos problemos dangaus kūnų poveikio vertinime ir suformuluoti uždaviniai, kuriuos disertaciniame darbe tikslinga išspręsti. Antrajame disertacijos skyriuje pateiktas teorinis tyrimas. Nagrinėjamas dangaus kūno lemiamo potvynio potencialo eilutės narių poveikis sunkio lauko elementams:... [toliau žr. visą tekstą]
9
Gašparík, Michal. "Měření nerovností povrchů vozovek geodetickými metodami." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-390172.
Full textAbstract:
The issue of this diploma thesis is measurement of pavement roughness with an alternative means of data acquisition and evaluation by geodetic methods. In the beginning there is an overview of current state of actual roughness measurement methods. The main work is concerned with data acquisition with passive reflection of the laser rangefinder and laser scanner and standard deviations that arise in measuring on asphalt and concrete road surfaces. The aim of the work is to formulate the process of data acquisition, specification of standard deviations in the process of measuring, evaluation of pavement roughness according to ČSN 73 6175 standard, and their applicable graphic interpretation. Based on the analysis of accuracy of the methods applied, their usefulness is evaluated in comparison with the straightedge test.
10
Gunár, Peter. "Geodetické činnosti při rekonstrukci povrchu dálnice D1." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-400153.
Full textAbstract:
The main goal of the diploma thesis is the description of geodetic and construction activities and work processes dealing with reconstruction of the D1 highway surface in the section Rosice – Brno. The thesis is focused within the sphere of engineering geodesy and address the issue of creation of point field, stake-out, control measurement and the measurement of real building execution documents. Used survey procedures are analyzed in the context of the standard deviation listed in the project documentation or ČSN. The geotetic documentation is compiled for the chosen measured data.
11
Fuhrmann, Thomas [Verfasser], and B. [Akademischer Betreuer] Heck. "Surface Displacements from Fusion of Geodetic Measurement Techniques Applied to the Upper Rhine Graben Area / Thomas Fuhrmann. Betreuer: B. Heck." Karlsruhe : KIT-Bibliothek, 2016. http://d-nb.info/1106330013/34.
Full text
12
Balák, Martin. "Zaměření části Dominikánského kláštera ve Znojmě." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-390233.
Full textAbstract:
The subject of this diploma thesis is a survey of the Dominican monastery in Znojmo. The thesis deals with the requirements for building documentation. The thesis contains floor plans of the second floor, the ground plan of the third floor and the vertical section of the building. The resulting documentation will serve the National Monument Institute for the planned reconstruction of the building.
13
Bručas, Domantas. "Geodezinių kampų matavimo prietaisų kalibravimo įrangos kūrimas ir tyrimas." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080620_092018-51641.
Full textAbstract:
Disertacijoje nagrinėjamos geodezinių kampus matuojančių prietaisų patikros bei kalibravimo metodai bei priemonės. Pagrindinis tyrimo objektas yra geodezinių prietaisų tikslumo parametrų matavimo būdų ir priemonių analizė, kalibravimo įrenginio kūrimas, jo tikslumo charakteristikų tyrimas bei įrenginio tobulinimas. Šie objektai yra svarbūs vykdant geodezinių prietaisų kalibravimą, kas savo ruožtu yra labai svarbu užtikrinant reikiamą šių prietaisų matavimų tikslumą geodezijoje, statybose, mašinų gamyboje ir t. t.
Pagrindinis disertacijos tikslas – geodezinių kampų matavimo prietaisų kalibravimo galimybių analizė ir sukurto kalibravimo įrenginio tikslumo parametr�� tyrimas.
Darbe sprendžiami keli pagrindiniai uždaviniai: plokščiųjų kampų matavimo metodų bei įrenginių, tinkamų geodeziniams prietaisams kalibruoti, analizė; daugiaetalonio kampų kalibravimo stendo kūrimas Vilniaus Gedimino technikos universiteto Geodezijos institute bei jo tikslumo charakteristikų tyrimas; stendo tikslumo didinimo galimybių bei priemonių tyrimas, ir apskritiminių skalių kalibravimo būdų tobulinimas.
Disertaciją sudaro šeši skyriai, įvadas, išvados, literatūros sąrašas bei priedai.
Įvade nagrinėjamas problemos aktualumas, formuluojamas darbo tikslas bei uždaviniai, aprašomas mokslinis darbo naujumas, pristatomi autoriaus pranešimai ir publikacijos, disertacijos struktūra.
Pirmasis skyrius skirtas labiausiai paplitusių plokščiųjų kampų matavimo būdų bei priemonių tinkamų geodeziniams prietaisams... [toliau žr. visą tekstą]The main idea of current PhD thesis is an accuracy analysis of testing and calibration of geodetic instruments. The object of investigation is an analysis of means and methods for testing and calibration of geodetic instruments for plane angle measurement, development of such calibration equipment, its accuracy investigation and the research of its accuracy increasing possibilities. These objects are important for successful testing or calibration of geodetic instruments for angle measuring which is essential in ensuring the precision of measurements taken in surveying, construction, mechanical engineering, etc. There are several main goals of the presented work. First one is an analysis of the angle measuring methods and devices suitable for the testing and calibration of geodetic instruments, according to the results of the mentioned analysis the second task can be formulated – creation of a multi-reference plane angle testing and calibration equipment at Institute of Geodesy, Vilnius Gediminas Technical University and investigate the parameters of its accuracy. The third task is to investigate the accuracy increasing possibilities of the equipment, and implementation some of them into the practice. The thesis consists of four chapters, introduction, conclusions, list of references and appendixes. Introduction is dedicated for an introduction to the problem and its topicality. There are also formulated purposes and tasks of the work; the used methods and novelty of... [to full text]
14
Adámať, Martin. "Geodetické činnosti při stavbě podchodu pod železniční tratí." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-400133.
Full textAbstract:
Diploma thesis describes geodetic works in the construction of a subway under the railway track in Trenčín. Foundation for geodetic works in the construction is decree 300/2009 from the body of laws. The thesis describes these works in the order in which they were executed during the construction process. These works are: prepration of project documents, stake-out, control measurement, measurement of real building execution, quantification of executed building works, creation of real building execution documents. Part of the thesis describes the stake-out evaluation of each building phase and the evaluation of the building execution. The subway is a part of the railway modernization Nové Mesto nad Váhom – Púchov in city Trenčín.
15
Anikėnienė, Asta. "Research and modeling of the recent vertical movements of the Earth’s Сrust on the basis of geodetic measurements (samples on Lithuanian territory)." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20090309_141501-24272.
Full textAbstract:
The thesis deals with the studies on the velocities of the recent vertical movements of the Earth’s Crust by applying correlation, regression and multi-criteria analysis of geo-parameters of the territory. The objective of the research involves the regularities of the recent vertical movements of the Earth’s Crust, the relationship with the geo-parameters of the territory, models of forecasting for movements and methodology of compiling maps on the vertical movements of the Earth’s Crust. The experimental subject matter is the territory of Lithuania.
The major task of the thesis is to work out the method for estimation and modelling of the recent vertical movements of the Earth’s Crust measured by applying geodetic methods and to implement the suggested method for compilation of the map of the recent vertical movements of the Earth’s Crust within the territory of Lithuania.
In order to achieve the determined target, the following tasks were solved: 1) there were determined the values of the measured recent vertical movements of the Earth’s crust from the data of the repeated levelling; 2) there were examined the regularities of the change of the recent vertical movements of the Earth’s Crust; 3) there was investigated and determined the relationship of the measured recent vertical movements of the Earth’s Crust and geo-parameters of the territory; 4) there were analysed the possibilities of application regressive models for forecasting regarding recent verticals movements of... [to full text]Disertacijoje nagrinėjami dabartiniai vertikalieji Žemės plutos judesių greičiai taikant teritorijos georodiklių koreliacinę, regresinę ir daugiakriterinę analizę. Pagrindinis tyrimo objektas – dabartinių vertikaliųjų Žemės plutos judesių dėsningumai, sąsajos su teritorijos georodikliais, judesių prognozavimo modeliai ir vertikaliųjų Žemės plutos judesių žemėlapio sudarymo metodika. Eksperimentinis objektas – Lietuvos teritorija. Pagrindinis disertacijos tikslas – parengti geodeziniais metodais išmatuotų dabartinių vertikaliųjų Žemės plutos judesių modeliavimo bei vertinimo metodiką ir ją taikant sudaryti Lietuvos teritorijos dabartinių vertikaliųjų Žemės plutos judesių žemėlapį. Siekiant įgyvendinti užsibrėžtą tikslą, išspręsti šie uždaviniai: 1) remiantis kartotinių niveliacijų duomenimis, nustatytos išmatuotų dabartinių Žemės plutos judesių reikšmės; 2) ištirti dabartinių vertikaliųjų Žemės plutos judesių kaitos dėsningumai; 3) ištirtos ir nustatytos išmatuotų dabartinių vertikaliųjų Žemės plutos judesių ir teritorijos georodiklių sąsajos; 4) išnagrinėtos regresinių modelių taikymo dabartiniams vertikaliesiems Žemės plutos judesiams prognozuoti galimybės ir parengtos rekomendacijos juos taikyti sudarant vertikaliųjų Žemės plutos judesių žemėlapius; 5) įvertinti dabartinių vertikaliųjų Žemės plutos judesių regresiniai prognozavimo modeliai taikant daugiakriterinės analizės metodiką; 6) taikant pasiūlytą metodiką, sudarytas Lietuvos teritorijos dabartinių vertikaliųjų Žemės... [toliau žr. visą tekstą]
16
Krbálková, Marcela. "Zaměření románských sklepních prostor v Praze." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225429.
Full textAbstract:
This diploma thesis concerns in the real measurement of Roman cellar areas in Prague 1 – Lesser Town, Karmelitská Street. A surveying structure for detailed area geodetic measurement is built up in given part of town. The surveying structure is connected to the binding reference systems – the S-JTSK coordinate system and Bpv altitude system. A detailed measurement is carried out in this cellar areas and recorded data are processed in a suitable programme. A three-dimensional model and drawing documentation – a ground plan and sections in required areas are drawn up according to this data. The ground plan of cellar areas in its drawing documentation is in 1:50 scale and the sections in 1:50 scale. Thesis outcomes will serve to document the current conditions of Roman cellar areas.
17
Chládeková, Paulína. "Zaměření rodinného domu v Brně Žabovřeskách." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-414308.
Full textAbstract:
This diploma thesis is about measuring of family house, creating drawings and visualization of results. The family house is located in the Brno-Žabovřesky The house was surveyed by the classical geodetic method using a survey net built using GNSS (Global Navigation Satellite System). The results of field measurements were processed in the Groma program, graphic outputs (footprints of individual floors, sections and 3D model) in the MicroStation application. The documentation can be used mainly for the planned reconstruction of the family house and other related purposes.
18
Lisowski, Michael. "Geodetic strain measurements in central Vancouver Island." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25913.
Full textAbstract:
A 1982 trilateration network and a 1947 triangulation network located in central Vancouver Island were studied to determine measurement precision and horizontal strain accumulation. The 1982 trilateration network was comprised of 23 distance measurements (average length 24 km), which covered a 30 km by 50 km area near the town of Gold River, east of Nootka Sound. Atmospheric refractivity corrections to the Rangemaster III measured distances were derived from end-point air pressures and aircraft-flown temperature and humidity profiles taken at the time of rangings. The standard error in a distance L (m) was estimated to be σ = (a² + b²L²)[sup ½]; where a = 0.0057m and b = 0.2x10⁻⁶ for distances reduced using the USGS probe temperatures and humidities or b « 0.26 x 10-6 using the CGS probe. There were 54 angle measurements common to the 1947 and 1982 networks. The standard error in a 1947 angle measurement was 2.3", and the estimated standard error in a 1947 to 1982 angle change was 2.4". Assuming uniform strain, the average rate of shear strain accumulation between 1947 to 1982 was 0.23±0.12 μrad/yr with the axis of maximum contaction bearing N56°E±12°. The accumulation of strain in the Gold River area was found to be similar in orientation and average rate to that observed in western Washington. The northeast orientation of the maximum compressive strain found in the geodetic networks could be reproduced with a two-dimensional, elastic dislocation model of the Cascadia subduction zone by locking the shallow interface to a depth of about 20 km. The model could not account for some details of the vertical deformation and it was not consistent with the north-south compressive stress indicated by shallow earthquake focal mechanisms. Although the possiblity of a large, shallow, thrust earthquake is inferred from the strain data, the uncertainty in the strain accumulation and the tectonic complexity of the area make such a conclusion speculative.Science, Faculty of
Earth, Ocean and Atmospheric Sciences, Department of
Graduate
19
Coccia, Martina. "Processing strategies optimization and error mitigation of geodetic measurements." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/112431.
Full textAbstract:
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2017.Page 177 blank. Cataloged from PDF version of thesis.
Includes bibliographical references (pages 171-176).
This doctoral thesis focuses on the application of geodetic techniques and finite element modeling to studying crustal deformation and other processes. In particular, it focuses on optimizing standard processing strategies, reducing the noise in the measurements and mitigating the effects of external processes in order to extract the signal of interest. Geodetic techniques, such GPS and InSAR, are still affected by major sources of errors, such as multipath, atmospheric effects, snow, blockage of the signal by infrastructure that can make difficult the detection of geophysical signal. In this thesis, I analyze three sets of data for which I have used different approaches to estimate the displacement and to investigate the sources of deformation that contribute to the signal. The first project consists of studying the deformation caused by the seasonal cycle of injection/withdrawal of gas in a depleted gas reservoir using InSAR measurements and Finite Element modeling techniques. In this project, I present a method to reduce the atmospheric signal, using statistical techniques and filtering and to estimate the error on the measurements. I compare the estimates with Finite Element modeling of the reservoir, using an elastic rheology. The second project analyses the unrest of Katla volcano in Iceland using GPS observables. GPS stations on top of the volcano register a complex signal, caused by the concurrence of different processes, such as snow on the antenna, multipath, earthquakes, volcanic deformation and hydrological events. In this project, I explore methods to detect the effects of snow/ice on top of antennas and to separate the different sources of the signal in order to extract the volcanic deformation component. I then compare the GPS measurements with a finite element model of snow/ice load on the volcano to validate the source of the estimated deformation. The third project involves the analysis of long term deformation and determination of vibrations of the Al-Hamra tower in Kuwait, using 24-hours averaged, 6-hours averaged and 1 Hz GPS measurements. The signals of GPS stations mounted on buildings are often affected by multipath due to reflective objects on the roof and suffer from reduced accuracy due to the partial masking of the sky by infrastructures on the roof. I explore different ways to mitigate the multipath, assessing an optimal GPS processing strategy for building installation. As the resulting deformation observed by the GPS instruments is highly correlated to variations in temperature, I present a finite element model of the building, where the major source of deformation is caused by a differential heating of the external walls. I also discuss the effects of the winds on the structure of the building, analyzing the high rate GPS measurements.
by Martina Coccia.
Ph. D.
20
Davison, M. "Refraction effects in precise surveying measurements." Thesis, University of Nottingham, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378767.
Full text
21
Erlandsson, Axel, and Alexander Frelin. "Deformationsmätning och uppdatering av geodetiskt nätverk i Mårtsbo provfält." Thesis, Högskolan i Gävle, Samhällsbyggnad, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-30358.
Full textAbstract:
Geodetiska provfält är viktiga för att geodetiska instrument kan kontrolleras och kalibreras. Exempelvis så kan en längdbas användas för att kontrollera nollpunktsfelet hos en Electronic Distance Measuement. Provfältets höga noggrannhet möjliggör även att detaljpunkterna exempelvis kan användas för att kontrollera noggrannheten vid utsättning eller inmätning. Att hålla provfältets koordinater uppdaterade är viktigt för att bibehålla den höga noggrannheten. Tidigare forskning visar att kända punkter kan vara bra för att kontrollera GNSS-antenner innan de sätts i bruk. Precisionen av mätningar var något man valde att utveckla på Statens Institution för Byggnadsforskning i Gävle på 70-talet (Statens Institut för Byggnadsforskning, 1984). Byggforskningen byggde ett provfält i Mårtsbo där punkter mättes in som sedan redovisats i en koordinatlista. Till en början användes provfältet för att kontrollera olika instrument och mätmetoder, men nu har det stått orört under en längre tid. Denna studie görs för att ta reda på om punkterna i området har rört sig något sen 1977 då fältet upprättades och därigenom avgöra om punkterna måste tilldelas nya koordinater innan användningen av fältet återupptas. Innan mätning kontrollerades och kalibrerades instrumenten som skulle användas. För att koppla stomnätet till SWEREF 99 16 30 och RH 2000 gjordes en statisk GNSS-mätning på de två mest öppna punkterna i nätet. Vinklar och avstånd mellan punkterna erhölls genom att använda satsmätning med multistation. För att få med alla detaljpunkter gjordes en koordinattransformation med hjälp av de gamla koordinaterna och de nya som mätts in. I efterarbetet bearbetades GNSS-mätningarna i programvaran Leica Geo Office. Satsmätningarna behandlades i programvaran SBG Geo och där gjordes två nätutjämningar, en med lokala koordinater och en med koordinater i SWEREF 99 16 30 och RH 2000. Slutligen transformerades resterande koordinater från det lokala systemet till SWEREF 99 16 30 och RH 2000 i programvaran Gtrans. Baserat på resultatet har signifikant deformation uppstått på flera av punkterna. De största förändringarna som skett är i plan 2,2 mm i P5 och i höjd 1,7 mm i P7. Noggrannheten som uppnåtts i denna studie är inte lika bra som tidigare, men ändå tillräckligt för att använda fältet.Geodetic test fields are important because they allow geodetic instruments to be tested and calibrated. For example, the baseline can be used when checking the zero-point error in an Electronic Distance Measurement. The high accuracy of the test field will also make it possible to use the detail points for checking the accuracy of the measurements when surveying. Keeping the coordinates of the field updated is important to maintain the high accuracy of the points. Previous research shows that known points were used to check GNSS-antennas before commercial use. The precision of measurements was something that the Swedish Institute of Constructional Science chose to develop even further in the late 1970s. A geodetic test field was constructed in Mårtsbo where points were established and presented in a coordinate list. The field was at first used to control different measuring equipment and methods, but in later years it has not been used at all. The aim of this study is to re-measure and update the coordinates of the test field. For this study, the instruments was controlled and calibrated before any measurements. To link to the well-established points with known coordinates in the control network static GNSS-measurements were performed on the two points located in the most open areas and positioned in SWEREF 99 16 30 and RH 2000. The angles and distances between the points were given by using rounds of measurements. To get coordinates for every detail point a coordinate transformation was used with the measured points as control points. During the post-processing of the GNSS-data the Leica Geo Office software was used to compute the coordinates. The rounds of measurements with multistation were processed in the software SBG Geo and network adjustments with both old and new coordinates were carried out. Finally, the rest of the coordinates were transformed into the new coordinate system which was done in the software Gtrans.. The result shows that significant local deformation has occurred on several points. The largest of deformation in plane is 2,2 mm in P5 and in height is 1,7 mm in P7. The uncertainties of the measured points are a bit higher in this study compared to earlier one, but they are still good enough to be use in this test field.
22
Freier, Christian. "Atom interferometry at geodetic observatories." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2017. http://dx.doi.org/10.18452/17795.
Full textAbstract:
Das gravimetrische Atominterferometer (GAIN) ist ein transportables Atominterferometer welches spezifisch für hochpräzise Schweremessungen in der Geodäsie und Geophysik entwickelt wurde. Es basiert auf einer Rubidium Atomfontäne, stimulierten Ramanübergängen und einer 3-Puls Mach-Zehnder Interferometriesequenz. Die vorliegende Arbeit beschäftigt sich mit der Optimierung und Anwendung von GAIN als transportables Gravimeter für Absolutschweremessungen an geodätischen Observatorien welche über den aktuellen Stand der Technik hinaus gehen. Dabei wurden eine Absolutgenauigkiet von 29 nm/s^2, eine Langzeitstabilität von 0.4 nm/s^2 sowie eine Sensitivität von 82 nm/s^2 in einer Sekunde erreicht. Die gemessene Genauigkeit und Langzeitstabilität stellen, nach dem Wissen des Authors, die bis heute besten publizierten Werte für ein transportablen Atominterferometer dar und repräsentieren einen bedeutenden Fortschritt im Bereich der Gravimetrie. Um dies zu erreichen wurden umfangreiche Verbesserungen am Gerät umgesetzt und eine ausführliche Analyse der systematischen Messabweichungen durchgeführt. Unter anderem wurden ein System zur Kompensation von Corioliskräften und Ausrichtungsfehlern, ein verbessertes Schwingungsisolationssystem zur nachträglichen Korrektur von Umgebungsvibrationen und eine magnetische Abschirmung instrumenteller Streufelder implementiert. Darüber hinaus wurden insgesamt vier Messkampagnen in Berlin, sowie an den geodätischen Observatorien in Wettzell, Deutschland und Onsala, Schweden durchgeführt, um GAIN mit anderen hochmodernen Absolut- und Relativgravimetern zu vergleichen. Der direkte Vergleich zwischen GAIN und anderen Gravimetern stellt den prinzipbedingten Vorteil der Atominterferometrie durch die Kombination aus Absolutgenauigkeit, Stabilität und Langzeitbetrieb klar hervor. Dies wurde in der Arbeit durch die um einen Faktor 2-5 verbesserte Kalibrierung des Skalenfaktor von zwei supraleitenden Gravimetern demonstriert.The gravimetric atom interferometer (GAIN) is a transportable setup which was specifically designed to perform high-precision gravity measurements at sites of interest for geodesy or geophysics. It is based on a Rb atomic fountain, stimulated Raman transitions and a three-pulse Mach-Zehnder atom interferometry sequence. The presented work is concerned with the optimization and application of GAIN as a transportable gravimeter in order to perform gravity measurements beyond the state-of-the-art. An absolute accuracy of 29 nm/s^2, long-term stability of 0.4 nm/s^2 and short-term noise level as low as 82 nm/s^2 in one second was achieved. The obtained long-term stability and accuracy values are, to the knowledge of the author, the best published performance of any transportable atom interferometer to date and represent a significant advancement in the field of gravimetry. A comprehensive analysis of the systematic error budget was performed to improve the accuracy and stability of the measured gravity value. Several setup improvements were implemented to this end, including Coriolis force and alignment control systems, an improved vibration isolator with post-correction and magnetic shielding which reduces spurious coupling due to stray fields. Measurement campaigns were conducted in Berlin and at geodetic observatories in Wettzell, Germany, and Onsala, Sweden, in order to compare GAIN to other state-of-the-art absolute and relative gravimeters. The direct comparison of GAIN to other absolute and relative gravimeters shows the general advantage of atom interferometers due to their unique combination of absolute accuracy, stability and robust architecture enabling continuous measurements. This was demonstrated during the presented campaigns by the improvement of the scale factor calibration of two superconducting gravimeters by a factor 2 to 5 using GAIN data.
23
Gagnon, Katie L. "Seafloor geodetic measurements and modeling of Nazca-South America plate convergence." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2007. http://wwwlib.umi.com/cr/ucsd/fullcit?p3310010.
Full textAbstract:
Thesis (Ph. D.)--University of California, San Diego, 2007.Title from first page of PDF file (viewed August 31, 2007). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 132-141).
24
Moore, Margaret Anne. "Crustal deformation in the southern New Zealand region." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325829.
Full text
25
Lisoňková, Lucie. "Obnova katastrálního operátu přepracováním v katastrálním území Šošůvka." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226471.
Full textAbstract:
Master´s thesis deals with creation of digitalized cadastral map in cadastral district Šošůvka. Analog maps in the old cadastral scale 1 : 2880 in the urban part of cadastral territory is revised. Externals was revised on the basis of comprehensive landscaping to digital cadastral map. Creation of digitalized is processed according to the current Instructions for Reconstruction cadastral including both amendments. The first part is devoted to the theory of cadastral and development and course of digitization. The main part of the thesis consists of the processing of the measured data and provided data by land registry.
26
Karas, Jindřich. "Geodetické měření posunů a deformací dřevěné střešní konstrukce velkého rozpětí." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226220.
Full textAbstract:
The aim of this thesis is deformation measurement of wide-span timber roof structures of swimming pool in Brno - Kohoutovice. The thesis deals with measuring of other stage, processing of surveying data, evaluation of deformation and graphic interpretation. Results of measurements follows up two stages in years 2009 and 2010. The part of the thesis is calibration measurement of surveying instruments and used measuring accessories.
27
Quesada, Olmo María Nieves. "Desarrollo y análisis de un sistema para la determinación de la dinámica del movimiento más general de la azotea de un edificio de gran altura y su evolución en el tiempo." Doctoral thesis, Universitat Politècnica de València, 2019. http://hdl.handle.net/10251/58993.
Full textAbstract:
[EN] The goal of this research is to analise and to develop a system that allows the determination of the most general movement dynamics of a tall building, as well as to quantify its evolution over time by means of Gaussian algorithms revision and by applying GNSS techniques and methodologies.
In this thesis, the oscillation of the control quadrilateral located on the roof of the ``Torre Espacio'' bulding and determined by a high precision survey network is assessed rigorously with the method of sequential solution with addition of variables or parameters using VRS-RTK techniques.
It is the data processing, together with the gaussian adjustment methodology based on a conditional tax own physical reality and analysis of partial and final results allowing us to achieve a high level of confidence that translates into effective management real-time risk.
In parallel, the instantaneous and simultaneous precision of each antenna in every moment is determined. That is the error surface and the individual, simultaneous reliability of each GNSS receiver.
Prior to assessing the structure dynamics, the sensitivity threshold is computed, under which nothing can be affirmed or denied with respect to the displacement produced in the control structure. It involves testing the accuracy of the instrumentation GNSS and gaussian initial adjustment mathematical model.
The project concludes with the development of a warning system that is activated at the time when the movement of the building reaches a preset threshold.[ES] El objeto de la investigación es analizar y desarrollar un sistema que permita determinar la dinámica más general del movimiento de un edificio de gran altura, así como cuantificar su evolución en el tiempo. Dicho sistema se plantea mediante la revisión de los algoritmos gaussianos y la aplicación de metodologías y técnicas GNSS. En este trabajo se determina rigurosamente, mediante el método general de Ajustes Coordinados con adición de funciones de variables o parámetros, la situación de oscilación del cuadrilátero de control conformado por una red microgeodésica local y observado con técnicas VRS-RTK ubicado en la planta de coronación del edificio Torre Espacio de Madrid. Es precisamente el tratamiento de los datos, la metodología gaussiana de ajuste en función de un condicionado propio impuesto por la realidad física y el análisis de los resultados parciales y finales lo que nos permite alcanzar un alto nivel de fiabilidad que se traduce en una gestión eficaz del riesgo en tiempo real. Paralelamente se determina la precisión instantánea y simultánea de cada antena y en cada momento, esto es la superficie de error y la fiabilidad individual y simultánea de la posición de cada receptor GNSS. Previo a la evaluación de la dinámica de la estructura, se calcula el umbral de precisión o ``sensibilidad'', por debajo del cual nada puede afirmarse o negarse con respecto al desplazamiento producido en la estructura a controlar. Supone contrastar la precisión de la instrumentación GNSS y del modelo matemático inicial de ajuste gaussiano. El proyecto concluye con el desarrollo de un sistema de alerta que se activa en el momento en que el movimiento del edificio alcanza un umbral preestablecido.
[CAT] L'objecte de la investigació és analitzar i desenvolupar un sistema que permeta determinar la dinàmica més general del moviment d'un edifici de gran alçada, així com quantificar la seua evoluvió en el temps. Aquest sistema es plantaja mitjançant la revisió dels algorismes Gaussians i l'aplicació de metodologies y tècniques GNSS. En aquest treball es determina rigorosament, mitjançant el mètode general d'Ajusts Coordinats amb adició de de funcions de variables o paràmetres, la situació d'oscilació del quadrilàter de control conformat per una xarxa microgeodèsica local i observant amb tècniques VRS-RTK localitzat a la planta de coronació de l'edifici TorreEspacio de Madrid. És precisament el tractament de les dades, la metodologia Gaussiana d'ajust en funció d'un condicionat propi imposat per la realitat física y l'anàlisi dels resultats parcials i finals el que ens permet arribar a un alt nivell de fiabilitat, que es tradieix en una gestió eficaç del risc en temps real. Paral·lelament es determina la precisió instantània i simultània de cada antena i en cada moment, es a dir la superfície d'error i la fiabilitat individual i simultània de la posició de cada receptor GNSS. Previament a l'evaluació de la dinàmica de l'estructura, es calcula l'umbral de precisió o ``sensibilitat'', per davall de la qual no es por afirmar o negar res respecte al desplaçament produït en l'estructura a controlar. Això suposa contrastar la precisió de la instrumentació GNSS i del model matemàtic inicial d'ajust Gaussià. El projecte conclou amb el desenvolupament d'un sistema d'alerta que s'activa en el moment en que el moviment de l'edifici arriba a un umbral preestablert.
Quesada Olmo, MN. (2015). Desarrollo y análisis de un sistema para la determinación de la dinámica del movimiento más general de la azotea de un edificio de gran altura y su evolución en el tiempo [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/58993
TESIS
28
Hägglund, Eriksson Malin. "Accuracy and Precision Analysis of Total Station Measurements." Thesis, KTH, Geodesi och geoinformatik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-147005.
Full textAbstract:
The main objective of this bachelor thesis was to gain awareness of accuracy and precision in total station measurements. Experiments were designed, executed and analyzed. The approach to the subject was to examine measurements made with various prism set-ups. Prisms are supposed to be directed to the total station with the front face in the line of sight. In the experiment the prisms were directed in various angles in order to measure in non-perfect measuring arrangement and the behavior of the precision and accuracy were noted. The mean values and standard uncertainties were calculated from the material as well as RMS Error in the cases where reference values could be used as true values. The reference values for comparison were available due to the possibility to use a test field – a network of concrete pillars with well-defined coordinates. To see whether the precision (the standard uncertainty) changed between a measurement sample made with correctly positioned prisms and a measurement sample towards the angled prisms, a statistical test method was used. (The test method is recommended in the international standard ISO 17123-1; Optics and optical instruments, Field procedures for testing geodetic and surveying instruments, Part 1: Theory). The results from the experiments showed that there were larger standard uncertainties in the slope distance measurements towards extreme angled prisms than to correctly directed prisms. Surprisingly it was also larger standard uncertainty in vertical angle measurements toward correctly directed prisms than slightly angled prisms. The mean values of the horizontal angle measurement drifted sideways in the measurements made towards one extreme angle to the opposite extreme so that a total shift of around one centimeter was detected at short distances as well as up to 100 m distance. When aiming in between the separate prisms of 360-degree targets the standard uncertainty were larger in horizontal angle measurements at a few occasions where it seemed like the autolock function had chosen two different prisms to lock on to, at separate occasions. The standard uncertainties were also larger in all vertical angle measurements when aiming in between the prisms. The results showed clearly that even when the standard uncertainties of the measurements were of equal size, the mean values – when measuring in the different test positions – could vary substantially.Huvudsyftet med detta kandidatarbete var att öka medvetenheten angående noggrannhet och precision i mätningar utförda av en totalstation. Ett antal experiment planerades, genomfördes och analyserades. De områden som undersöktes i projektet var hur mätningarna påverkades av olika sätt att vinkla prismor mot totalstationen. Det rekommenderas att rikta ett prismas framsida mot totalstationens siktlinje. I experimentet vinklades prismorna i olika lägen för att mätningar skulle utföras i icke-perfekta förhållanden. Medelvärden och standardosäkerheter beräknades ur mätdatan samt RMSE i de fall där det fanns referensvärden att jämföra med. Dessa referensvärden var tillgängliga tack vare möjligheten att få utnyttja ett testfält med betongpelare med kända koordinater. För att utröna om precisionen (standardosäkerheten) ändrades mellan mätningar på korrekt inriktade prismor och de mätningar som gjordes mot vinklade prismor, utfördes ett statistiskt test. (Testmetoden rekommenderas i den internationella standarden ISO 17123-1, Optics and optical instruments - Field procedures for testing geodetic and surveying instruments - Part 1: Theory). Resultaten av undersökningarna visade att där var större standardosäkerheter i mätningar av den lutande längden när prismorna var extremt vinklade än när de var korrekt orienterade. Standardosäkerheten var något överraskande också större med korrekt riktade prismor i vertikalvinkel-mätningarna med autolockfunktionen än om prismorna var något utåtvinklade. Medelvärdena på horisontalvinklarna drev sidleds i mätningar gjorda i en extrem vinkelposition till den motsatta extremen så att en total förflyttning på runt en centimeter konstaterades på korta avstånd likväl som på avstånd upp till 100 m. Vid inriktning av siktet mot områdena mellan de separata prismorna i 360-gradsmålen så ökade standardosäkerheten i horisontalvinkel vid ett par positioner då det verkade som att autolockfunktionen valde båda prismorna på var sida, vid olika tillfällen. Standardosäkerheten var också större vid samtliga vertikalvinkelmätningar mot områdena mellan prismorna. Resultaten visade tydligt att även om standardosäkerheterna i mätningarna var i samma storleks-ordning så kunde medelvärdena av mätstorheten mellan de olika testpositionerna variera substantiellt.
29
Stanionis, Arminas. "Žemės plutos horizantaliųjų judesių Ignalinos atominės elektrinės rajone tyrimas geodeziniais metodais." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20060117_125618-84276.
Full textAbstract:
A method prepared and created algorithm for computations and evaluation of relation between Earth’s crust horizontal deformations and variations of tectonic stresses. Hooke’s law was used for relation description. Method of evaluation of Earth’s crust horizontal deformations was improved as well as modelling method based on observation data. Elements of deformation tensors were evaluated by applying finite element method. New data of Earth’s crust horizontal movements and their geodynamic interpretation at the Ignalina Nuclear Power Plant region were obtained.
30
Voosoghi, Behzad. "Intrinsic deformation analysis of the earth surface based on 3-dimensional displacement fields derived from space geodetic measurements." [S.l. : s.n.], 2000. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB8885017.
Full text
31
Voosoghi, Behzad. "Intrinsic deformation analysis of the earth surface fased on 3-dimensional displacement fields derived from space geodetic measurements." [S.l. : s.n.], 2000. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB8937695.
Full text
32
Phillips, David A. "Crustal motion studies in the Southwest Pacific: geodetic measurements of plate convergence in Tonga, Vanuatu and the Soloman Islands." Thesis, University of Hawaii at Manoa, 2003. http://hdl.handle.net/10125/6903.
Full textAbstract:
The southwest Pacific is one of the most tectonically dynamic regions on Earth. This research focused on crustal motion studies in three regions of active Pacific-Australia plate convergence in the southwest Pacific: Tonga, the New Hebrides (Vanuatu) and the Solomons Islands. In Tonga, new and refined velocity estimates based on more than a decade of Global Positioning System (GPS) measurements and advanced analysis techniques are much more accurate than previously reported values. Convergence rates of 80 to 165 mm/yr at the Tonga trench represent the fastest plate motions observed on Earth. For the first time, rotation of the Fiji platform relative to the Australian plate is observed, and anomalous deformation of the Tonga ridge was also detected. In the New Hebrides, a combined GPS dataset with a total time series of more than ten years led to new and refined velocity estimates throughout the island arc. Impingement of large bathymetric features has led to arc fragmentation, and four distinct tectonic segments are identified. The central New Hebrides arc segment is being shoved eastward relative to the rest of the arc as convergence is partitioned between the forearc (Australian plate) and the backarc (North Fiji Basin) boundaries due to impingement of the d'Entrecasteaux Ridge and associated Bougainville seamount. The southern New Hebrides arc converges with the Australian plate more rapidly than predicted due to backarc extension. The first measurements of convergence in the northern and southernmost arc segments were also made. In the Solomon Islands, a four-year GPS time series was used to generate the first geodetic estimates of crustal velocity in the New Georgia Group, with 57-84 mm/yr of Australia-Solomon motion and 19-39 mm/yr of Pacific-Solomon motion being observed. These velocities are 20-40% lower than predicted Australia-Pacific velocities. Two-dimensional dislocation models suggest that most of this discrepancy can be attributed to locking of the San Cristobal trench and elastic strain accumulation in the forearc. Anomalous motion at Simbo island is also observed.xv, 135 leaves
33
Buršíková, Monika. "Přepracování katastrálního operátu v katastrálním území Zakřany." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226210.
Full textAbstract:
This thesis deals with renewal of cadastral documentation in cadastral area of Zakřany. The area of interest is only the urban part of village of Zakřany. The documentation of non-urban areas was renewed based on complex land adjustment resulting in a digital cadastral map valid from October 8, 2012. In the urban area the original analog cadastral map in scale 1:2000 is still valid. This map was created based on results of technical-economical mapping in 1969. Parcels still registered in so called simplified register will be removed based on maps of former land cadastre. The result of the master's thesis will be draft of digital cadastral map created in MicroGEOS Nautil program.
34
Suchánková, Tereza. "Geodetické činnosti při rekonstrukci vozovky v ulici Otakara Ševčíka." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-414318.
Full textAbstract:
The subject of this diploma thesis is a description of complex surveying activities during the reconstruction of the road in Otakara Ševčíka Street in cadastral area Židenice. This work describes connection of the points to the coordinate system S-JTSK and to the height system Bpv. Geodetic documentation is made for individual measurements and laying out. Next is the analysis of measurement accuracy and comparison of achieved values with deviations specified in the relevant ČSN.
35
Staněk, Boleslav. "Měření přetvoření mostní konstrukce a železničního svršku." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226600.
Full textAbstract:
This diploma thesis deals with the phases measuring deformation of the bridge construction and railway superstructure on the bridge over the river Dyje in Breclav and its surroundings. The main goal was to determine the longitudinal displacements of the rail web and the bridge structure. The object of this thesis was also transverse displacements which have been caused mainly due to temperature changes. The introduction describes the location. The following section discusses the methodology terrestrial deformation measurements and calibrations selected surveying devices. Furthermore, there is stated the processing of measurements and the calculations. In conclusion, the thesis evaluates the longitudinal and transverse displacements, which are shown in the annexes.
36
Larsen, Shawn Christian. "Geodetic measurement of deformation in southern California." Thesis, 1991. https://thesis.library.caltech.edu/917/1/Larsen_sc_1991.pdf.
Full textAbstract:
The Global Positioning System (GPS) has rapidly become one of the most important geodetic tools for studying tectonic deformation. With potential 3-dimensional relative positioning accuracies better than 1 cm, GPS can monitor secular deformation as well as rapid strain fluctuations due to seismic and volcanic activity. A 1970/1971 trilateration survey and 1987/1988 GPS observations suggest uniaxial convergence of 6.4 mm/yr oriented N25.1 °E in the eastern third of the Santa Barbara channel, and a combination of convergence and left-lateral shear to the west. GPS surveys have been conducted in the Imperial Valley during 1986, 1988, 1989, and 1990. About 5 ± 1 cm/yr plate-boundary displacement is observed across the valley, somewhat larger than rates obtained through conventional geodesy. These GPS observations have been influenced by the 1987 Superstition Hills earthquake sequence, the first occurrence of a large earthquake within a preexisting GPS network. The measurements suggest 130 cm right-lateral slip along the northwest trending Superstition Hills fault, and 30 cm left-lateral slip along the conjugate northeast trending Elmore Ranch fault. Imperial Valley leveling surveys conducted in 1931, 1941, 1974, 1978, and 1980, are integrated with seismic, geomorphic, and sub-surfacial structural data, to suggest the northern segment of the Imperial fault formed within the last 80,000 years, and support the hypothesis that the Gulf of California rift system is propagating northwestward into the North American continent.
37
Webb, Francis H. "Geodetic measurement of deformation in the offshore of southern California." Thesis, 1991. https://thesis.library.caltech.edu/6330/1/Webb_fh_1991.pdf.
Full textAbstract:
Geodetic surveys using signals from satellites of the Global Positioning System (GPS) have allowed for the reoccupation of historical triangulation markers for crustal deformation studies and the recovery of a long history of geodetic data that date to the late 1800's. From June 1986 to May 1988, six GPS experiments were conducted in California that incorporated more than 50 first-order triangulation stations on the channel islands of southern California and the mainland into a precise GPS network. Interstation vectors were calculated from the GPS observables using the National Geodetic Survey's (NGS) GPS22 software. The results of these analyses provided baseline component precisions better than several pans in 10^7. The vectors from all of the GPS surveys were combined and used with historic triangulation observations to estimate shear-strain rates across the Santa Barbara Channel and Oxnard plain, and across the southern California Continental Borderland. Simultaneous reduction was used to evaluate the shear-strain rates from the combination of these data. Shear-strain rates across the Santa Barbara channel are from 0.2 to 0.4 µrad/yr with a direction of maximum contraction of from N23W to N20E, averaged over a hundred years of geodetic data. For networks that cross the Continental Borderland, the data were insufficient to reliably estimate strain rates.
The direction of shortening implied by the geodetic data agrees with that inferred from the trends of late Quaternary and Holocene faults and folds in the Santa Barbara channel. When the shear-strain rates across the channel are modeled as uniaxial convergence, this indicates shortening from 13±5 mm/yr at N23W±5 across the western part of the channel to 18±5 mm/yr at N20E±5 across the eastern part. By adding the western channel velocity to the geodetic velocity of the Vandenberg VLBI site with respect to North America, a velocity path across the Pacific-North American plate boundary can be constructed to the offshore islands of 56±4 mm/yr at N38W±4, exceeding the NUVEL-1 plate-model velocity for Pacific North American plate motion in California by 7 mm/yr.
38
Yung-ShengChen and 陳勇昇. "Interseismic deformation of the Longchuan and Chishan faults using geodetic measurements." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/24766587832038648123.
Full textAbstract:
碩士國立成功大學
測量及空間資訊學系
103
Geodetic data were collected between Nov. 2011 and Oct. 2014 from 3 continuous GPS stations, 14 campaign-mode GPS stations, 99 traverse points and 140 leveling measurements in this study region to understand the kinematics of the Chishan fault (CHNF) and the Lungchuan fault (LCNF). We divide the study region into three blocks from CHNF and LCNF. The footwall of LCNF is block I, the hanging wall of LCNF and the footwall of CHNF is block II, and the hanging wall of CHNF is block III. Based on analysis of the surface velocity profile, the block II shows the rapid surface deformation. According to the 2-D block model, the interseismic slip rate of the LCNF is close to zero, and the locking depth is about 0.1 km. The LCNF seems to be a creeping fault. The interseismic slip rate of the CHNF is about 60 mm/yr and its dip angle is about 70°, which indicates that the CHNF is a high dip angle creeping fault.
39
ChunChang-Lee and 張李群. "Behavior analysis of the LCNF-CHNF fault system using geodetic measurements." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/59917053668487375728.
Full textAbstract:
碩士國立成功大學
測量及空間資訊學系
102
The objective of this research is evaluating the present-day surface deformation in the research region and fault behavior of the CHNF and LCNF. Two-year geodetic network data are collected between Nov. 2011 and Nov. 2013 from 3 continuous GPS stations, 16 campaign-mode GPS stations, 152 traverse points and 212 leveling benchmarks in research region. The velocity vectors of block two in research region indicate the very rapid surface deformation. This character would be caused by other tectonic activity. According to velocity profile and strain rate analyses, the LCNF which located at mud stone region is leading the surface deformation of research region. Therefore, LCNF acts as a thrust with left-lateral strike-slip motion but the behavior of the CHNF is still unclear.
40
Ho, Shih-Chi, and 何世紀. "Application of Space Geodetic Measurements to the Surface Deformation of Tainan Tableland, Southwestern Taiwan." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/n2p75u.
Full textAbstract:
碩士國立中央大學
地球物理研究所
94
The Taiwan mountain belt is an active collision belt and thrust wedge, which developed as the result of the oblique convergence between the Philippine Sea plate and the Eurasian plate. In addition to the Longitudinal Valley of eastern Taiwan, the suture between these two plates, the foreland area of western Taiwan is also under active deformation. Previous researches and current geophysical data suggest that the geology of SW Taiwan is influenced by (1) the foreland structural highs; (2) the major fault zones in the belt; and (3) the presence of a subduction zone to the south. Therefore modern geodetic monitoring of this area is essential to further improve our knowledge. The Tainan tableland is a structural high due to the active shortening. This tableland is located in the SW Tainan county, and is bound by Yen-Shuei Hsi river to the north and Er-Ren Hsi river to the south. It is 12km long in N-S direction and 4km in width, and the highest point of this tableland is about 30m. Tainan city is just situated on the Tainan tableland, this city is highly populated and is the fourth biggest city in Taiwan. To the eat of Tainan tableland, the Houjiali fault is documented as an active fault. In this study we try to detect the deformation activity in Tainan area and to discuss its deformation behavior. Recently, remote sensing technique has attracted many interests. In our study, we used many kinds of remote sensing method to delineate the deformation of Tainan area, these are (1) Differential Interferometry Synthetic Aperture Radar, (2) Persistent Scatterer InSAR, and (3) the strain rate field from GPS data. Our study shows that(1) the uplift rate of Tainan tableland is approximately 1.0cm/yr and the subsidence rate of Tawan lowland reaches about -0.5cm/yr revealed by DInSAR observation; (2) the differential deformation rate occurred in and around the Tainan tableland is principally controlled by the basement geometry and the local structural distribution; (3) the strain rate field shows that the Tainan tableland and its neighboring area are transpression in its deformation type. Further researches concerning the Persistent Scatterer InSAR technique and its related application are also stated in this thesis.
41
Kao, Yu-Hsuan, and 高宇軒. "Faults Activities and Crustal Deformation of Hualien City Analysed by geodetic measurements and Geophysical Prospecting." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/65171441731845852117.
Full textAbstract:
碩士國立東華大學
自然資源與環境學系
104
Hualien city is the northernmost city in the East Rift Valley, and is located in the collision of two plates suture belt, the number of seismic activity is quite frequent, and the underground structure is very complex. Central Weather Bureau (1952) pointed out that the distribution of regional earthquakes and active faults are highly correlated, 1951 Hualien earthquake is correlated with the Milun fault. In this study, applied the geodetic measurments and geophysical prospecting to Analyze. Geodetic measurments is divided into satellite image processing and total station measurements, satellite imagery through Persisten Scatterer Interferometric Synthetic Aperture Radar to observe the wide range of area information. Furthermore, due to Chen, J.Y. observed changes in Hualien city move slightly different, the use of Total Station survey the amount of movement of the horizontal in small area, and solve Hualien continuous GPS fewer problems. Finally, because of past data and records, Milun fault extended southward that is no significant dislocation; therefore, processing surveied by Electrical Resistivity Tomography in the southern section of Milun fault which found out the situation of Milun fault extended southward. Each satellite images show that Milun fault subsided 1-3mm/yr in line of sight(LOS) in long term, and from April 2005 to June 2005, Milun table increases significantly 5 to 15 mm in LOS, presumably is related with the 2005 earthquake swarm. The interesting is that across the Milun fault had a apparently decline, may be affacted by Minyi fault, and more to the sounth of the table didn't change obviously. The result of Total Station in the middle of Milun fault have a clearly changes to left lateral movement, but the position is different currently, the fault position maybe located more east about 200m. The Electrical Resistivity Tomography results show that the materials in west side of the Milun hill is different from the southwest position, maybe affected by Milun fault, and the materials are different under the ground in the westward 600m of Milun river estuary, further speculation Milun fault extends southward dosen't southwest accross the Hualien city, which turn to the southeast extends to the sea. Finally, combine previous studies and this study's results. We think the Milun table is located in plate subduction belt, as happened, and it present collision-extrusion tectonics that sink down northward. And may be affected by stress westward extrusion or elastic rebound that make the table obvious uplift, such as the 1951 Hualien earthquake or the earthquake swarm in 2005.
42
Huang, Hsuan-Wei, and 黃宣維. "Analysis of Neotectonics Based on 3-D Structural Geometry and Geodetic Measurements in Hsinchu area, Northwestern Taiwan." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/86265686298710992209.
Full textAbstract:
碩士國立臺灣大學
地質科學研究所
100
Earthquake magnitude and coseismic deformation are strongly related to the geometry of the seismogenic fault. Consequently, the construction of a comprehensive 3-D fault geometry model for the linkage and interaction of fault systems becomes one of the essential topics in neotectonic studies. The Western Foothills of Taiwan is undergoing an active deformation of the Taiwan orogeny demonstrated by the frequent seismicity and destructive earthquake events. The study region includes several faults-and-folds systems from Hsinchu and Hsincheng faults in the north to Okungchi and Hoping faults in the south in the internal and external western Foothills in Hsinchu area. The structures in Hsinchu area show wide and gentle folds associated with NNW-SSW trending thrust faults in internal Foothills and tide and steep folds associated with the E-W trending thrust faults in external Foothills. From the seimostectonic viewpoint, the earthquakes frequently occur in internal Foothills than external Foothills. Therefore, the main purpose of this study is to investigate the linkage of subsurface structures between internal and external western Foothills in Hsinchu area. To this purpose, we restore a cross-section across Hsinchu and Hsincheng faults, and clarify the overall structural evolution of major fault systems based on this restoration. By integrating eleven CPC geological cross-sections and the profile in this study, we use GeoSec 3D software to construct 3D fault geometry model beneath Hsinchu area. Finally, we use GOCAD software to integrate 3D relocated seismicity and 3D fault model in order to explore the relationships between active structures and seismicities. In terms of the profile reconstruction, the thickness of strata gradually increasing eastward was induced by abundant normal faults activating in early Miocene. However, Talu shale pinched out instead. According to restoration of balanced cross section, the Juanchiao fault, Chutung fault and Peipu fault are in-sequence fault systems, meanwhile the Hsinchu and Hsincheng faults are out-of-sequence fault systems. The Chingtsaohu anticline formed following the Peipu fault. After that, Hsinchu fault cut through the Chingtsaohu anticline and Hsincheng fault, bedding fault, formed in the end. The displacements along the Hsinchu and Hsincheng fauts are 1318 m and 887 m, respectively. We assumed the faults formed after the deposition of Cholan formation, therefore, the long term slip rates for Hsinchu and Hsincheng faults are 0.43 mm/yr and 0.37 mm/yr respectively. Also, short term slip rate of Hsincheng fault is larger than 0.37 mm/yr. As a result, it implies Hsincheng fault is possible a recently active structure in Hsinchu area. The average strain rate across Hsincheng fault is -0.05 μ strain/yr, and the coseismic strain drop divided by strain rate gets 600-6000 years. Therefore, we suggest the recurrence interval of Hsincheng fault is 600-6000 years. Base on the analysis of seismicity and geological profiles, the numbers of earthquakes are larger in internal than external foothills. Clusters at the bend of Juanchiao fault at depth imply that it is the location of stress generating. According to 3D seismicity and fault model, earthquake events occur northward in 1999, 2007, 2003, 2006. The 3D fault model indicates faults at depth become gentler in internal foothills, while faults in external foothills turn into steeper. The boundary fault, Juanchiao fault, shows subsurface high angle thrust and stepped fault geometry at depth. Furthermore, the detachment becomes deeper eastward, from 6-7 km to 10 km.
43
Higginson, Simon. "Mapping and understanding the mean surface circulation of the North Atlantic: Insights from new geodetic and oceanographic measurements." 2012. http://hdl.handle.net/10222/14866.
Full textAbstract:
The mean dynamic topography (MDT) of the ocean is closely related to the mean surface
circulation. The objective of this thesis is to produce estimates of the MDT for the North
Atlantic using newly available data from ocean and gravity observing systems, to evaluate
these new estimates and so improve our understanding of the circulation.
Oceanographic estimates of the MDT are based on the mean temperature and salinity
(TS) fields of the ocean. These are typically averages from sparse observations collected
over many decades. The ocean is a non-stationary system so it is more appropriate to define
the mean for shorter, specific periods. Whilst the Argo observing system has increased the
frequency and resolution of in situ oceanographic measurements, high frequency (eddy)
variability remains. A new technique is described for removing this variability using
satellite altimeter measurements of the sea surface height. A new TS mean is produced,
relating to the period from 2000 to 2007, and this is used to map a new oceanographic
estimate of the MDT using an ocean circulation model.
New geodetic estimates of the MDT are produced using geoid models that incorporate
gravity measurements from the ongoing GRACE and GOCE satellite missions. These
are compared with the new oceanographic estimate and validated against independent
observations such as drifter speeds. The geodetic method produces realistic estimates of
the mean surface circulation, thereby realizing the long time dream of oceanographers to
observe the ocean circulation from space. The new oceanographic estimates are not as
accurate, but the new TS mean contributes to improvements in the performance of ocean
models, a necessary step in understanding and predicting the oceans.
Coastal tide gauges can provide an accurate estimate of the alongshore tilt of the coastal
MDT and this has been used to evaluate the above estimates. Temporal variability of the tilt
along the coast of the South Atlantic Bight is used, with statistical methods and an ocean
circulation model, to identify the processes contributing to the tilt. A new opportunity to
use tide gauges as part of an observing system for the ocean circulation is discussed.
44
Phillips, David A. "Crustal motion studies in the southwest Pacific geodetic measurements of plate convergence in Tonga, Vanuatu and the Solomon Islands /." 2003. http://proquest.umi.com/pqdweb?index=0&did=765084701&SrchMode=1&sid=1&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1233364545&clientId=23440.
Full text
45
DVOŘÁKOVÁ, Eliška. "Geodetická sledování prostorových polohových změn rekultivovaných svahů pohornické krajiny." Master's thesis, 2009. http://www.nusl.cz/ntk/nusl-51273.
Full textAbstract:
The project is about the evaluation of 2 stage measurements in local coordinate net Rabenov which were done in 2007. This local coordinate net was set for monitoring of slope shifts at the former mining area near Ústí nad Labem. In concrete terms in south - eastern part of Chabařovice mine. For terrestrial measurements were used total stations Leica TC 1700 and 1800 and GPS measurement on the basis of GPS surveying system Trimble 5700. The achieved values - horizontal angles, oblique distance, and zenithal angles were reduced onto joins of stabilization marks. From these reduced values the coordinates of standpoints were computed by evaluation of three-dimensional net. These determined coordinates were compared with the zero stage of measurement and deviations were computed. Each computation was done by geodetic computer software Rocinante. Next task was the testing of the different types of reflecting targets.
46
Voosoghi, Behzad [Verfasser]. "Intrinsic deformation analysis of the earth surface based on 3-dimensional displacement fields derived from space geodetic measurements / submitted by Behzad Voosoghi." 2000. http://d-nb.info/960401318/34.
Full text