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Relevant bibliographies by topics / Precisse leveling

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Academic literature on the topic 'Precisse leveling'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 February 2022

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Journal articles on the topic "Precisse leveling"

1

Som, Z. A. M., A. M. Yazid, T. K. Ming, and N. M. Yazid. "THE UNIFIED LEVELLING NETWORK OF SARAWAK AND ITS ADJUSTMENT." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-4/W1 (September 30, 2016): 271–75. http://dx.doi.org/10.5194/isprs-archives-xlii-4-w1-271-2016.

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The height reference network of Sarawak has seen major improvement in over the past two decades. The most significant improvement was the establishment of extended precise leveling network of which is now able to connect all three major datum points at Pulau Lakei, Original and Bintulu. Datum by following the major accessible routes across Sarawak. This means the leveling network in Sarawak has now been inter-connected and unified. By having such a unified network leads to the possibility of having a common single least squares adjustment been performed for the first time. The least squares adjustment of this unified levelling network was attempted in order to compute the height of all Bench Marks established in the entire levelling network. The adjustment was done by using MoreFix levelling adjustment package developed at FGHT UTM. The computational procedure adopted is linear parametric adjustment by minimum constraint. Since Sarawak has three separate datums therefore three separate adjustments were implemented by utilizing datum at Pulau Lakei, Original Miri and Bintulu Datum respectively. Results of the MoreFix unified adjustment agreed very well with adjustment repeated using Starnet. Further the results were compared with solution given by Jupem and they are in good agreement as well. The difference in height analysed were within 10mm for the case of minimum constraint at Pulau Lakei datum and with much better agreement in the case of Original Miri Datum.

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Dingliang, Yang, Zou Jingui, Shen Yanwen, and Hongbin Zhu. "Research and Application of Trigonometric Leveling to Replace Precise Leveling." Journal of Surveying Engineering 147, no. 3 (2021): 04021012. http://dx.doi.org/10.1061/(asce)su.1943-5428.0000366.

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Park, Joon-Kyu, and Jong-Soon Ahn. "Construction of Precise Local Geoid using GPS/Leveling." Journal of the Korea Academia-Industrial cooperation Society 15, no. 7 (2014): 4595–600. http://dx.doi.org/10.5762/kais.2014.15.7.4595.

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Zhenglu, Zhang, Zhang Kun, Deng Yong, and Luo Changlin. "Research on precise trigonometric leveling in place of first order leveling." Geo-spatial Information Science 8, no. 4 (2005): 235–39. http://dx.doi.org/10.1007/bf02838654.

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Vega Fernádez, Alonso, Oscar Lücke Castro, and Jaime Garbanzo Leon. "Geoid heights in Costa Rica, Case of Study: Baseline Along the Central Pacific Zone." Revista Ingeniería 30, no. 1 (2019): 1–20. http://dx.doi.org/10.15517/ri.v30i1.35839.

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A precise orthometric height (H) and orthometric height difference (ΔH) determination is required in many fields like construction, geodesy and geophysics. H is often obtained from an ellipsoidal height (h) and geoid height (N) of a geoid model (GM) because this computation does not have the spirit leveling restrictions on long distances. However, the H accuracy depends on the GM local area adaptation, and current global geoid models (GGMs) have not been yet evaluated for Costa Rica. Therefore, this paper aims to determine which GGM maintains a better fit with a GPS/levelling baseline that contains the gravity full spectrum. A 74 km baseline was measured using GPS, spirit leveling and gravity measurements to validate the N computed from EGM2008, EIGEN-6C4, GECO, EGM96, GGM05C and GOCO05C. First, an absolute N assessment was made, where geoid height from the GGMs (NGGM) were directly compared to the geometric geoid heights (Ngeo) obtained from GPS and spirit levelling. A bias fit (Nbias) of about 2 m was computed from this comparison for most GGMs with respect to the local vertical reference surface (W0). By subtracting the Nbias, a relative geoid height (ΔN) assessment was designed to compare the differences between GGM relative geoid height (ΔNGGM) and geometric relative geoid height (ΔNgeo) on segments along the baseline. The ΔN comparison shows that EGM2008, EIGEN-6C4 and GECO better represent the Costa Rican Central Pacific Coastal Zone and over long distances, ΔH can be computed with a decimeter to centimeter precision.

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Teskey, W. F., and J. F. Wentzel. "A method of precise trigonometric leveling for deformation surveys." CISM journal 43, no. 4 (1989): 357–65. http://dx.doi.org/10.1139/geomat-1989-0037.

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A method of precise trigonometric leveling, for application in deformation survey networks that are periodically observed, is described. The advantages over precise spirit leveling are outlined and the special observational and analysis procedures required in the method are given. The method is then applied to the Barrier Dam Deformation Survey Network and a comparison is made with precise spirit leveling results. The results indicate that vertical movements of 5 millimeters over lines of observation of 500 meters can be detected.

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Dimitrov, Nikolay, Ivan Georgiev, and Petar Danchev. "REFRACTION CORRECTION IN PRECISE LEVELING OBSERVATIONS FOR NATIONAL LEVELING NETWORK FIRST ORDER." Geodesy and cartography 46, no. 4 (2020): 159–62. http://dx.doi.org/10.3846/gac.2020.11555.

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The paper deals with some problems when applying a correction to reduce the effect of vertical refraction in precise leveling observation. An example for calculating the refraction correction for one first order leveling line with length of 109 km in Bulgaria is given. Comparison between the obtained errors before and after applying refraction correction has been made. The results show that is important to measure the temperatures simultaneously with the leveling by aspiration thermometer with an accuracy of ±0.1 °C. It is recommended to make experimental research and to adopt appropriate for Bulgaria model for taking into account the influence of vertical refraction.

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Liibusk, Aive, Artu Ellmann, Tarmo Kõuts, and Harli Jürgenson. "Precise Hydrodynamic Leveling by Using Pressure Gauges." Marine Geodesy 36, no. 2 (2013): 138–63. http://dx.doi.org/10.1080/01490419.2013.771594.

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Zou, J., Y. Zhu, Y. Xu, Q. Li, L. Meng, and H. Li. "Mobile precise trigonometric levelling system based on land vehicle: an alternative method for precise levelling." Survey Review 49, no. 355 (2016): 249–58. http://dx.doi.org/10.1080/00396265.2016.1163877.

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Albattah, Mahmoud. "LANDSLIDE MONITORING USING PRECISE LEVELLING OBSERVATIONS." Survey Review 37, no. 288 (2003): 127–36. http://dx.doi.org/10.1179/sre.2003.37.288.127.

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Dissertations / Theses on the topic "Precisse leveling"

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Bocková, Lenka. "Měření svislých posunů kostela v Zábrdovicích." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-227126.

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The diploma thesis deals with measuring height new stage of the church network in Brno Zabrdovice. Measuring by using method of precise leveling be going on with previous stage began in 2002, in order to detect vertical displacement. Processing include calculation and adjust of the heights, compare with fundamental and previous stage, interpretation and graphical form of vertical displacement. The thesis includes measuring and processing angular deflection of church towers.

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Davison, M. "Refraction effects in precise surveying measurements." Thesis, University of Nottingham, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378767.

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Fryksten, Jonas. "Study on ongoing subsidence in Uppsala City using Sentinel-1 radar data." Thesis, Högskolan i Gävle, Samhällsbyggnad, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-30076.

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Many cities in Sweden are partly located on clay and because of that, some urban city centres are undergoing significant subsidence. To measure subsidence in cities, precise leveling has been the traditional technique, but the interest for the Persistent Scatter InSAR (PSI) technique has increased in the last years, in this application. With the PSI technique, a mm-accuracy can be obtained and the analyses can be done over large areas. In this study, a validation between the PSI and the precise leveling techniques was performed for a selection of buildings located in areas that are facing great subsidence. A correlation between the subsidence rate achieved in the PSI analyses and near-surface soil type was also done, to easier identify risk zones. The city of Uppsala was chosen as study area, because it is partly built on deep layers of clay and the consulting company Bjerking AB has established a leveling network with metal pegs on many buildings. One ascending and one descending PSI analysis was performed, with Sentinel-1 data from the period mid-2015 to mid-2019, and the PSI analyses were done in SARPROZ. After the PSI analyses, comparative permanent scatters (PS) points and metal pegs were identified creating validation pairs. 15 different validation pairs were identified in four different objects, which was one or two buildings. The PSI analyses showed that Uppsala is undergoing significant subsidence in some parts, with an annual rate of about 6 mm/year in the line-of-sight (LOS) direction, which corresponds to about 7.5 mm/year in the vertical direction. The areas of greatest deformation were exclusively found on postglacial clay. The standard deviation of the time series were calculated around their linear regression lines, which was a measure of how temporal coherent the points were. The mean of this standard deviation for the PS points in the 15 validation pairs was 1.5 mm. This standard deviation increased to 2.3 mm in the time series where the direction was transformed from LOS to vertical and where the movements were in respect to the benchmarks. Between the PSI and the precise leveling techniques, in the validation, the vertical subsidence rate differed less than 1 mm/year in all validation pairs and the mean of all differences was 0.56 mm/year. Based on these results, Sentinel-1 data can measure urban subsidence in a satisfactory way, when the PSI technique is applied.

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Dvořák, Jiří. "Opakovaná GPS měření na polygonu Tetčice a jejich interpretace." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225422.

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This thesis deals with monitoring shifts in the vicinity of the village Tetčice. The site is located at the interface of geomorphological units. Monitor the area is done in stages and methods of using GPS and precise leveling. Points tested are expected movements in places the earth's crust, which are stabilized on the pillars in order to avoid possible negative effects. The work builds on results from previous measurements.

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Corrêa, Cícero Pimentel. "MÉTODOLIA PARACONTROLE DE RECALQUES EM ESTRUTURAS DE CONCRETO ARMADO POR MEIO DE NIVELAMENTO GEOMÉTRICO DE PRECISÃO." Universidade Federal de Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/7805.

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Civil construction on the rise over the past years, and the events of structural accidents in the meantime, gave rise to a methodology for monitoring structure settlings through precise geometric leveling topographic surveys. The methodology was conducted in a reinforced concrete drinking water reservoir structure, of the Rio Grande do Sul Basic Sanitation Company (CORSAN), now at its final construction stage, located in the municipality of Santa Cruz do Sul RS. All data obtained from the newly developed methodology were observed right after the conclusion of the work and during the beginning of its utilization. We utilized a set comprising an optical mechanic geodesic level and metallic millimeter ruler for carrying out settling control, and the readings on the metallic rulers were analyzed. Evolution charts of the settlings were made in order to check the behavior of the speeds and their acceleration rate.<br>Com o crescimento da construção civil nos últimos anos e com a falta de controle do comportamento das estruturas, verificou-se a necessidade de aplicar metodologia para o monitoramento de recalques em estruturas pode meio de levantamento topográfico de nivelamento geométrico de precisão. A metodologia foi aplicada em reservatório de concreto armado, de água potável com estrutura de concreto armado, da Companhia Riograndense de Saneamento (CORSAN), que está em fase de conclusão da obra, situado no município de Santa Cruz do Sul RS. Os dados obtidos na metodologia desenvolvida foram observados logo após o término da construção e durante o inicio de sua utilização. Foi utilizado um conjunto composto de nível geodésico óptico-mecânico e régua metálica graduada em milímetros para a realização do controle de recalque, sendo analisadas as leituras obtidas nas réguas metálicas. Foram elaborados gráficos da evolução dos recalques, verificando-se o comportamento das velocidades e aceleração dos mesmos.

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Dörrer, Tomáš. "Určení vertikálních posunů objektu kolejí JAMU v Brně." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226356.

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The subject of the diploma thesis is a height measurement done within several time periods, in order to detect vertical displacements of an object of dormitories of JAMU on Novobranska street in Brno. The thesis includes selection of the method and its accuracy verification and also processing of the measurements and suitable interpretation of achieved results.

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Kiamehr, Ramin. "Precise Gravimetric Geoid Model for Iran Based on GRACE and SRTM Data and the Least-Squares Modification of Stokes’ Formula : with Some Geodynamic Interpretations." Doctoral thesis, KTH, Transporter och samhällsekonomi (stängd 20110301), 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4125.

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Iran is one of the most complicated areas in the world from the view of rough topography, tectonic activity, large lateral density and geoidal height variations. The computation of a regional gravimetric geoid model with high accuracy in mountainous regions, especially with sparse data, is a difficult task that needs a special attention to obtain reliable results which can meet the needs of the today geodetic community. In this research different heterogeneous data has been used, which includes gravity anomalies, the high-resolution SRTM Digital Elevation Model (DEM), recently published GRACE Global Geopotential Models (GGMs), geological maps and GPS/levelling data. The above data has been optimally combined through the least-squares modification of Stokes formula with additive corrections. Regarding the data evaluation and refinement, the cross-validation technique has been used for detection of outliers. Also, several GGMs and DEMs are evaluated with GPS/levelling data. The impact of utilizing a high resolution SRTM DEM to improve the accuracy of the geoid model has been studied. Also, a density variation model has been established, and its effect on the accuracy of the geoid was investigated. Thereafter a new height datum for Iran was established based on the corrective surface idea. Finally, it was found that there is a significant correlation between the lateral geoid slope and the tectonic activities in Iran. We show that our hybrid gravimetric geoid model IRG04 agrees considerably better with GPS/levelling than any of the other recent local geoid models in the area. Its RMS fit with GPS/levelling is 27 cm and 3.8 ppm in the absolute and relative senses, respectively. Moreover, the relative accuracy of the IRG04 geoid model is at least 4 times better than any of the previously published global and regional geoid models in the area. Also, the RMS fit of the combined surface model (IRG04C) versus independent precise GPS/levelling is almost 4 times better compared to the original gravimetric geoid model (IRG04). These achievements clearly show the effect of the new gravity database and the SRTM data for the regional geoid determination in Iran based on the least-squares modification of Stokes’ formula.<br><p>QC 20100906</p>

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Kováč, Michal. "Geodetické měření posunů a deformací mostu "Gagarin"." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226358.

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The content of this master´s thesis is a geodetic measuring of movements and deformations of skeleton and underwork of „Gagarin“ railway bridge during the seventh period and processing of the data got. This was done by comparison of the movements according to the fifth and sixth period. The work includes also the calibration of appliance used. The results involve figures of the movements with their graphic interpretation and calibration sheets of the appliance.

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Bitalová, Katarína. "Gravimetrická měření a opakovaná nivelace na polygonu Tetčice." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-227127.

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This master's thesis deals with measurements of highs and gravity of points polygon located in village Tetčice, through which is crossing a eastern fault of Boskovice furrow. With repeated measurement should be proved effect to high levels of groundwater. Repeated measurements are realized in the range 2 stages. In thesis is in detail described calculation complete Bouguer gravity anomaly and their quantitative interpretation. From the gravimetric of dates is created map of complete Bouguer gravity anomaly and interpretative profile through Boskovice furrow. Interpretative profile has localized fault, whose tectonic activity belong to possible factors level movement in the village. Level measurements meets the requirement of precise levelling. The results of the measurements are compared and discussed with the previous stages of the research.

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Zbránek, Jakub. "Měření horizontálních a vertikálních posunů gabionové zdi." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226754.

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The main subject of this diploma thesis is monitoring of horizontal and vertical displacements of the supporting wall in village Smědčice. The thesis describes the whole production process, from construction of the reference net and the net of observed points to the final review. There are also displayed main theoretical basis. Final outputs of the thesis are charts, graphical sketches, tables and final word summary.

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Books on the topic "Precisse leveling"

1

Kleijer, Frank. Troposphere modeling and filtering for precise GPS leveling. Nederlandse Comissie voor Geodesie, 2004.

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2

Dzurisin, Daniel. Preliminary results of precise leveling and trilateration surveys in Yellowstone National Park, Wyoming, 1985. U.S. Geological Survey, 1986.

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3

M, Yamashita Kenneth, and Geological Survey (U.S.), eds. Preliminary results of a precise leveling survey in Yellowstone National Park, Wyoming, September 1986. Dept. of the Interior, U.S. Geological Survey, 1988.

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Preliminary results of a precise leveling survey in Yellowstone National Park, Wyoming, September 1986. Dept. of the Interior, U.S. Geological Survey, 1988.

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M, Yamashita Kenneth, Doukas Michael P, and Geological Survey (U.S.), eds. Precise level lines at Crater Lake, Newberry Crater, and South Sister, Oregon. U.S. Geological Survey, 1987.

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6

Establishment, Building Research, ed. Monitoring building and ground movement by precise levelling. Building Research Establishment, 1993.

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A, St Laurent, and Canada. Dept. of Public Works., eds. Georgian Bay ship canal survey: Report on the precise levelling, years 1904 to 1907. S.E. Dawson, 1997.

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Book chapters on the topic "Precisse leveling"

1

Li, Yanxing. "Corrections for Atmospheric Refraction in Precise Leveling." In Sea Surface Topography and the Geoid. Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4684-7098-7_20.

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Todorović, Ranko T. "Precise Levelling Network Adjustment in Mining Subsidence Regions." In Applications of Geodesy to Engineering. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77958-9_19.

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Celik, R. N., T. Ayan, H. Denli, et al. "Monitoring Deformation on Karasu Viaduct Using Gps & Precise Leveling Techniques." In Strong Motion Instrumentation for Civil Engineering Structures. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0696-5_28.

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Lilje, M., P. A. Olsson, P. O. Eriksson, and R. Svensson. "Minimising the Error Budget in the Third Precise Levelling of Sweden." In International Association of Geodesy Symposia. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-04683-8_24.

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Fuhrmann, Thomas, Andreas Knöpfler, Michael Mayer, et al. "An Inventory of Surface Movements in the Upper Rhine Graben Area, Southwest Germany, from SAR-Interferometry, GNSS and Precise Levelling." In International Association of Geodesy Symposia. Springer International Publishing, 2015. http://dx.doi.org/10.1007/1345_2015_116.

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"precise (differential) levelling (Brit.)." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_163419.

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Conference papers on the topic "Precisse leveling"

1

Liu, Guanlan, and Yaming Xu. "The Application of Precise Trigonometric Leveling in River-Crossing Leveling." In 2010 2nd International Conference on Information Engineering and Computer Science (ICIECS). IEEE, 2010. http://dx.doi.org/10.1109/iciecs.2010.5677719.

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Dimitrov, N., P. Danchev, and I. Georgiev. "Impact of atmospheric refraction on precise leveling observations." In 10th Congress of the Balkan Geophysical Society. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201902641.

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Chen, Brian, and Jen-Yuan (James) Chang. "Investigation of Flexible Magnetic Medium Microstructure Behavior Under Implementation of Roller Leveling Process." In ASME-JSME 2018 Joint International Conference on Information Storage and Processing Systems and Micromechatronics for Information and Precision Equipment. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/isps-mipe2018-8582.

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The aim of this paper is to investigate the effect of roller leveling process on the behavior of microstructure in flexible magnetic medium. Linear magnetic encoder is a highly precise measuring device that required accurate quality control during manufacturing. Previous studies have demonstrated the feasibility of roller leveling application to enhance the manufacturing of flexible magnetic medium. Mechanical shape defects in magnetic medium occurred during manufacturing due to environmental conditions can be eliminated through roller leveling process. In this paper, further steps were taken to understand the effect of roller leveling process in the microstructural level. From experimental results, it demonstrates that roller leveling process, a type of cyclic loading process, would not encourage crack growth if cracks were not initiated prior to leveling process. In addition to removing mechanical shape defects, understanding roller leveling process in magnetic medium application through investigating microstructure behavior has implications toward the fabrication quality of flexible magnetic medium.

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Baryla, Radoslaw, and Jacek Paziewski. "The Concept of the GNSSControl Network Densification with Precise Leveling for Ground Deformation Monitoring." In The 9th International Conference "Environmental Engineering 2014". Vilnius Gediminas Technical University Press “Technika” 2014, 2014. http://dx.doi.org/10.3846/enviro.2014.187.

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Markovic, Milos. "ESTIMATION OF THE DEFLECTION OF VERTICAL COMPONENTS USING PRECISE LEVELLING AND GNSS MEASUREMENTS ON HIGH PRECISION LEVELLING NETWORK OF SERBIA." In 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings. STEF92 Technology, 2019. http://dx.doi.org/10.5593/sgem2019/2.2/s09.014.

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Buśko, Małgorzata, Mariusz Frukacz, and Tadeusz Szczutko. "Classification of precise levelling instruments referring to the measurements of historic city centres." In The 9th International Conference "Environmental Engineering 2014". Vilnius Gediminas Technical University Press “Technika” 2014, 2014. http://dx.doi.org/10.3846/enviro.2014.197.

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Stereva, Kremena. "INFLUENCE OF THE TEMPERATURE EXTENSION OF THE STAFFS ON THE REZULTS OF PRECISE LEVELLING MEASUREMENTS." In 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020. STEF92 Technology, 2020. http://dx.doi.org/10.5593/sgem2020/2.2/s09.008.

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Savchyn, I., and A. Zyhar. "Analysis and interpretations of recent local vertical movements of Dnister PSPP territory determined from precise levelling." In International Conference of Young Professionals «GeoTerrace-2020». European Association of Geoscientists & Engineers, 2020. http://dx.doi.org/10.3997/2214-4609.20205702.

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Ghazali, R., M. R. A. Hamid, Z. A. Latif, R. Adnan, and A. M. Samad. "Evaluating the range of differences between GPS rapic-static observed orthometric height with the digital precise levelling." In its Applications (CSPA). IEEE, 2010. http://dx.doi.org/10.1109/cspa.2010.5545340.

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Ghosh, Suhash, Chittaranjan Sahay, and Poorna Pruthvi Chandra Malempati. "Effect of Measuring Instrument Eccentricity and Tilt Error on Circularity Form Error." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-11937.

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Abstract From power stations to power tools, from the smallest watch to the largest car, all contain round components. In precision machining of cylindrical parts, the measurement and evaluation of roundness (also called circularity in ASME Geometric Dimensioning & Tolerancing Y14.5) and cylindricity are indispensable components to quantify form tolerance. Of all the methods of measuring these form errors, the most precise is the one with accurate spindle/turntable type measuring instrument. On the instrument, the component is rotated on a highly accurate spindle which provides an imaginary circular datum. The workpiece axis is aligned with the axis of the spindle by means of a centering and tilt adjustment leveling table. In this article, the authors have investigated the dependence of circularity form error on instrument’s centering error (also known as eccentricity) and tilt error. It would be intriguing to map this nonlinear relationship within its effective boundaries and to investigate the limits beyond which the measurement costs and time remain no more efficient. In this study, a test part with different circular and cylindrical features were studied with varying levels of predetermined instrument eccentricity and tilt errors. Additionally, this article explores the significance of incorporating these parameters into undergraduate and graduate engineering curricula, and be taught as an improved toolkit to the aspiring engineers, process engineers and quality control professionals.

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Reports on the topic "Precisse leveling"

1

Haase, C. S., and S. H. Stow. Precise leveling determination of surface uplift patterns at the New Hydraulic Fracturing Facility, Oak Ridge National Laboratory. Office of Scientific and Technical Information (OSTI), 1988. http://dx.doi.org/10.2172/5169008.

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