Relevant bibliographies by topics / Land surveys

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Land surveys'

Author: Grafiati
Published: 4 June 2021
Last updated: 31 July 2024

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Journal articles on the topic "Land surveys"

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Jiang, Zhuoran, Ming Jiang, Yahua Wang, Can Ma, and Weifeng Qiao. "An Alternative Method of Cultivated Land Identification and Its Actual Change from 2009 to 2019: A Case Study of Gaochun, China." Land 12, no. 3 (February 22, 2023): 534. http://dx.doi.org/10.3390/land12030534.

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As the largest developing country, China has permanently attached great importance to cultivated land protection. However, due to the different rules of cultivated land identification in the second and third national land surveys, the cultivated land area in the two surveys has changed greatly. Some agricultural lands in the south, such as plantations, forests, grasslands, aquaculture ponds, etc., belonged to cultivated land during the second survey, but they were identified as non-cultivated land in the third national land survey. This change has led to a sharp reduction in the area of cultivated land in some places. In order to calculate the actual change in the area of cultivated land since the second survey and provide a reasonable basis for the standard of cultivated land protection, this paper takes Gaochun District, a developed area in China, as an example; interprets the images of the second national land survey period with the deep learning network HRNet; and compares the results with the second and third national land survey rules. The results show that the actual reduction of cultivated land in Gaochun District in the past ten years accounts for 35.1% of the reduction of cultivated land in the two land surveys, while the reduction of cultivated land caused by the change of cultivated land identification rules accounts for 64.9% of the reduction of cultivated land in the two land surveys, indicating that the significant reduction in local cultivated land was mainly caused by the changes in the rules, and these cultivated land reduction behaviors existed before the second survey.
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Bélanger, L., C. Camiré, and Y. Bergeron. "Ecological land survey in Quebec." Forestry Chronicle 68, no. 1 (February 1, 1992): 42–52. http://dx.doi.org/10.5558/tfc68042-1.

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After a brief review of floristic classifications, ecological survey, as carried out in Quebec, is described. Three stages of development of ecological survey over the past twenty-five years are identified: (1) the pioneer work of Jurdant; (2) major ecological surveys from the late 1960s to the late 1970s; and (3) the diversification of the groups involved in ecological land surveys beginning in the 1980s, including universities, the Quebec Environment Department (MENVIQ) and the Quebec Department of Energy and Resources (MER). Intended for use in integrated land management, ecological survey must be an effective integrator of the various ecological evaluations; the information must be easily communicable and the methodology must be flexible. Ecological land classification has two dimensions: (1) taxonomic; and (2) cartographic. In the taxonomic units, the ecological region, the ecological type and the ecological phase are identified. In cartographic terms, local (ecological phase and type), regional (ecological system and subsystem) and national (ecological district and region) resolution is identified.Quebec universities, MER and MENVIQ are presently involved in ecological land surveys. The new Forest Act, which was enacted in 1986 and which provides for sustainable yield and more intensive forest management, is a major force behind the promotion of the use of ecological inventories as the basis for management activities. Mapping of the ecological regions (1:1,250,000) has almost been completed in Quebec. Total coverage of the commercial forest as a function of ecological districts (1:250,000) could be completed within five years, and the mapping of ecological types (1:20,000) could be completed in 20 years at a rate of 10,000 km2 a year. Although in the past ecological land surveys have been used primarily for environmental impact analyses (for instance, the installation of hydroelectric equipment and transportation corridors), the ecological framework is presently being used to prepare development plans for a number of regional county municipalities (RCMs). Pilot projects are under way to assess the potential applications of the ecological framework to forestry as part of intensive management efforts. Improvements are needed in both the accessibility of the information provided by the ecological framework (maps, site guides) and the development of interpretative tools for silvicultural measures. Key words: ecological survey, ecosystem mapping, ecological land classification, forest ecology, forest site classification, Quebec.
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Aditya, Trias, Dany Laksono, Febrian F. Susanta, I. Istarno, D. Diyono, and Didik Ariyanto. "Visualization of 3D Survey Data for Strata Titles." ISPRS International Journal of Geo-Information 9, no. 5 (May 7, 2020): 310. http://dx.doi.org/10.3390/ijgi9050310.

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Major cities and urban areas are beginning to develop and use 3D properties and public facilities. Consequently, 3D cadastral surveys are increasingly being employed for strata unit ownership registration as a part of land administration services. At present, most national land information systems do not support 2D and 3D cadastral visualizations. A field survey or validation survey is required to determine the geometry of 3D spatial units for property registration. However, the results of 3D surveys and mapping are not stored in the land information system. This work aims to integrate 2D and 3D geospatial data of property units collected from cadastral surveys with their corresponding legal data. It reviews the workflow for the use of 3D survey data for first-titling of 3D properties in Indonesia. A scenario of use and a prototype were developed based on existing practices and the possibility of extending Indonesia’s Land Administration Domain Model (LADM) to represent 3D units. Data submitted to the prototype as 3D geometries was survey data from 3D cadastral surveys or validation surveys utilizing terrestrial survey methods. The prototype used PostGIS and Cesium Ion to store 3D geometries of data from six 3D surveys. Registrars in local land offices could use the prototype to undertake strata unit registration that establishes a relationship among geospatial features and their survey documents and legal documents. Cesium JS was used as a 3D browser, customized as a web application, to manage and visualize 3D survey data to support strata title registration. The results demonstrate that the first titling of 3D cadaster objects could be conducted and properly visualized in Indonesia by extending the existing LADM with more support for 3D spatial representations and survey documents.
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Whittaker, B. B. "PHOTOGRAMMETRY AND LAND TENURE SURVEYS, UGANDA." Photogrammetric Record 4, no. 19 (September 28, 2006): 65–69. http://dx.doi.org/10.1111/j.1477-9730.1962.tb00327.x.

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Dean, Tim, and Mus’ab Al Hasani. "Noise in urban land seismic surveys." ASEG Extended Abstracts 2018, no. 1 (December 2018): 1–8. http://dx.doi.org/10.1071/aseg2018abp069.

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Sitorus, Santun R. P. "A Review of Parametric and Physiographic Approaches Land Classification for Land Evaluation and Land Use Planning." Sumatra Journal of Disaster, Geography and Geography Education 2, no. 2 (December 16, 2018): 1–8. http://dx.doi.org/10.24036/sjdgge.v2i2.168.

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Knowledge of physical characteristics of land is fundamental for rational land evaluation and land use planning, both in developed and undeveloped regions. A review of two land classifications, parametric and physiographic approaches, is carried out. The parametric approach classifies on the basis of selected land attributes determined by land use or uses in question. Its employment may range from general purpose surveys which are considering many attributes, to classification on narrower basis for special purposes. The physiographic approach, on the other hand, classifies land rather than its specific attributes. Each land unit identified in this way is therefore considered to be relatively homogeneous in overall characters. Both approaches have had varying merits depending on the goal and circumstances of the land evaluation. On a detailed study required by most practical purposes, both approaches theoretically meet the requirements of land classification. Of both approaches, it was concluded that physiographic approach had the advantage of being rapidly implemented whereas, the parametric approach, whilst slower in use and applicable only in localized studies, yielded more reliable results. In reality, however, distinction between both approaches is not so clear-cut because they can be combined with advantage. Their advantages and disadvantages relative merits also be assessed in related to three problems of land classification: (1) complexity of land, (2). extent of land-units, and (3) associations of land-units. The two approaches are really not alternatives and can, in fact, be combined with profit, since the relative advantage of each varies with circumstances. Physiographic approach offers a possibility on more rapid survey at relatively low cost, as needed in most undeveloped regions. Its reliability is consistent for reconnaissance investigation and, with moderately close sampling, for semi-detailed surveys. It has an additional advantage of enabling a survey with diverse specialists. For a detailed survey, however, greater precision and reliability of parametric approach is preferable. In practice, therefore, both methods are best combined to reinforce each other.
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Gaidet, Nicolas, and Tanguy Daufresne. "Are the Jameson Land muskoxen, Northeast Greenland, in decline?" Rangifer 39, no. 1 (December 3, 2019): 59–68. http://dx.doi.org/10.7557/2.39.1.4424.

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The Jameson Land region contains the largest muskox population in Northeast Greenland. In the period 1980-1990, late winter population size averaged 3,645. A late winter 2000 survey estimated ca. 1,705 muskoxen. Although no further late winter surveys for muskox abundance have occurred since, there have been two summer bird surveys, which recorded incidental observations of muskoxen, i.e., 607 in 2008 and 610 in 2009. We report on muskox observations obtained in a subarea of Jameson Land during the summer 2016 ground survey for birds. Although in the 1982-2000 period this subarea averaged 1,153 ± 346 muskoxen, we observed 138 individuals and a low calf number. The few muskoxen observed and poor calf production suggest population decline. We briefly discuss possible factors that could influence muskox mortality and population abundance. Surveys specific to muskoxen are necessary to ascertain current population abundance, demographics and trend.
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Tabor, Joseph A. "Ethnopedological Surveys—Soil Surveys that Incorporate Local Systems of Land Classification." Soil Horizons 33, no. 1 (1992): 1. http://dx.doi.org/10.2136/sh1992.1.0001.

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Yoshimura, K., K. Fujiwara, and S. Nakama. "APPLICABILITY OF AUTONOMOUS UNMANNED HELICOPTER SURVEY OF AIR DOSE RATE IN SUBURBAN AREA." Radiation Protection Dosimetry 184, no. 3-4 (May 16, 2019): 315–18. http://dx.doi.org/10.1093/rpd/ncz116.

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Abstract An autonomous unmanned helicopter (AUH) survey is a useful tool for monitoring the distribution of ambient dose equivalent rates. However, the AUH survey method was developed for plane permeable fields such as agricultural land, and its applicability to urban areas is unclear. In this study, the applicability was investigated by comparing the results of AUH and ground-based surveys conducted in suburban areas, including residential and agricultural lands. The results of both surveys broadly agreed with each other within a factor of 2 in the range independent of land use, and the factor was the same as that reported for plane permeable fields. These results suggest that AUH surveys are applicable in urban areas. The measurement uncertainty of the AUH survey was largely affected by the patchy and local distribution of ambient dose equivalent rates on the ground and differences in the fields of view, rather than land use.
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Colville, David, Brittany Reeves, Darien Ure, Bill Livingstone, and Heather Stewart. "Mapping the topography and land cover of Sable Island." Proceedings of the Nova Scotian Institute of Science (NSIS) 48, no. 2 (May 7, 2016): 285. http://dx.doi.org/10.15273/pnsis.v48i2.6660.

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In September 2014 the Applied Geomatics Research Group (AGRG) completed a third aerial mapping campaign of Sable Island. The AGRG first mapped the island in October 2002 with an aerial photography survey. Then in August 2009 AGRG conducted an aerial photography and Light Detection And Ranging (LiDAR) survey. Five years later these same technologies were deployed again. Each of these surveys led to an orthophoto mosaic of the island and a mapping of the land cover. The 2009 and 2014 surveys also mapped the island’s topography using Digital Surface Models (DSMs) derived from the LiDAR data. Ground-truthing efforts associated with each survey provided data to assist with the interpretation and validation of the results.The repeat surveys resulted in an excellent opportunity to quantify the topographic and land cover changes that have occurred on the island. The mapped results provide a comparison of how and where these changes have occurred over the years. AGRG is working with Parks Canada to better understand how the topography and land cover are changing. This understanding will contribute to Parks Canada Ecological Integrity monitoring program for Sable Island and inform the management planning process for one of Canada’s newest national parks.
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Dissertations / Theses on the topic "Land surveys"

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Ponce, Hernandez R. "The use of soil information systems in land planning." Thesis, University of Oxford, 1987. http://ora.ox.ac.uk/objects/uuid:bf11165c-ac30-4971-9945-6f9cfccd04e2.

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Computerized soil information systems (SIS) store and retrieve, much more efficiently than soil maps, the soil information collected from field survey which is essential for land-use planning. The soil is only observed and sampled at a limited number of locations, depths and for a limited number of properties. Information not recorded during survey is missing and if needed must be generated or predicted. New geostatistical techniques for spatial analysis and interpolation of soil data, i.e. the semi-variogram and Kriging, can now be included as on-line capabilities of SIS to equip users with a powerful tool for prediction of the missing information. When there are no records of the wanted property, its values can be estimated by a function on other recorded properties acting as its surrogates. A strategy for model development is provided for the construction of surrogate functions based on multiple regression and curve fitting techniques, to generate the information missing. When no records of the soil property at the depth wanted exist, the values at the required depths are interpolated by a function of the property on the soil depth. Equal-area spline curves reconstruct, piecewise, the depth function quite closely, enabling their use for interpolation of values and depths in a variety of formats. The equal-area spline algorithm is a capability of the Oxford SIS (OXSIS). When the wanted site was unvisited during survey, the information missing is provided by spatial prediction. The predictions may come from means of soil classes or mapping units from conventional survey, or from Kriging interpolation based on spatial analysis by the semi-variogram. In order to select the best predictive tool, the success of these techniques in different situations of sampling effort and variablity were compared. Semi-variograms depicted the spatial structures of 8 selected soil properties. Anisotropic variation in 4 of them was induced by strong trends. Where the semi-variogram was isotropic Kriging was the best tool for prediction if spatial dependence is strong. Fitting elliptical functions to find a model for anisotropy did not give satisfactory results. Where anisotropies or trends precluded ordinary Kriging, map unit means and class means, in that order, gave the best predictions. Success in prediction was related to the structures in the semi-variogram, which when used for reconnaissance helps to infer which technique will give the best predictions so that survey is designed accordingly. Accounting for the trends removed anisotropies and Kriging of de-trended data was possible. Partitioning trends by stratification based in soil mapping units gave a greater improvement in predictions than modelling trends by bicubic spline surfaces and then Kriging the residuals from trend. After trend removal, Kriging did not always make the best predictions and means from classes seemed equally as good as Kriging or even better in some cases. These results indicate that a critical point is to ascertain how to best sample to estimate a reconnaissance semi-variogram for survey design to provide the information missing necessary for land-use planning.
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Stones, Roger David. "Land suitability studies for the growing of deciduous berries in the Limpopo Province of South Africa." Pretoria : [s.n.], 2007. http://upetd.up.ac.za/thesis/available/etd-06262008-161148/.

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Rutkowski, Joshua Edward. "Understanding political ecologies of land use change using household surveys in Mankweng, South Africa." Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4771.

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Thesis (M.A.)--West Virginia University, 2006.
Title from document title page. Document formatted into pages; contains vi, 35 p. : ill. (some col.), map. Includes abstract. Includes bibliographical references (p. 31-33).
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Newton, Rachel E. "A floristic inventory of selected Bureau of Land Management wetlands in Wyoming." Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1663116391&sid=2&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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Fabian, Christopher J. "Application of a digital terrain model for forrest land classification and soil survey." Diss., Columbia, Mo. : University of Missouri-Columbia, 2004. http://hdl.handle.net/10355/4107.

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Thesis (M.S.) University of Missouri-Columbia, 2004.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (June 30, 2006). Vita. Includes bibliographical references.
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Flatley, William Truetlen. "Successive Land Surveys as Indicators of Vegetation Change in an Agricultural Landscape." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/44202.

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A series of anthropogenic disturbance conditions have altered the vegetation of the southern Appalachians during the past 200-years. The objective of this research was to identify the nature and timing of these vegetation changes in order to better understand the underlying causes. A total of 304 land surveys were collected for a small agricultural watershed from early settlement in 1787 through to the present day. Witness corners recorded tree species, shrubs, stumps, snags and non vegetative markers. Types of witness corners were tallied and tested for shifts in frequency across time periods. Tree species were also classified by silvical characteristics including sprouting capability, shade tolerance, and seed type and these groupings were tested for shifts in frequency across time periods. Landform bias of the witness corners was tested using references contained in the surveys. Results showed significant shifts in white oak (Quercus alba L.), chestnut (Castanea dentate Marsh. Borkh.), chestnut oak (Quercus prinus Wild.), black oak (Quercus velutina Lam.), red oak(Quercus rubra L.), black locust (Robinia pseudoacacia L.), yellow poplar (Liriodendron tulipifera L.), and scarlet oak (Quercus coccinea Muenchh.). The central change was a steady decline in white oak, probably due to the absence of fire and changes in soil properties. Chestnut replaced white oak as the dominant species, but was removed by chestnut blight in the 1930's. Sprouting capability appeared to be the most important silvical characteristic across all species.
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Berhane, Daniel. "Development of methods and techniques for land resource surveying for Eritrea." Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-02162006-153034/.

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Eckert, Penelope Jennings. "The social construction of a watershed : changing rights and changing land /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/5542.

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Salminen, Mandy M. "Breeding Bird and Bat Activity Surveys at Dairymen's Inc." Wright State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=wright1507213426130855.

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Zhang, Fan. "Regional disparity in homeownership, investment choice, and intra-household bargaining : evidence from Chinese household surveys." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/52103/.

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This thesis contains three studies that provide theoretical and empirical evidence on household decisions in housing and investment portfolios in China, using 2010-2014 data from the China Family Panel Studies (CFPS). The first study investigates regional disparities in homeownership and value of owner-occupied housing in Chinese cities by using panel data from 2010-2014 CFPS. The results show that demographic characteristics actively shape the housing outcomes of urban households in different regions. The results also reveal development trajectories of regional economies. The findings indicate that while urban households benefit from an emerging population and an enormous growth in the private sector in the Eastern and Central regions, in the Northeastern region households are hindered in homeownership by an ageing population and an economy dominated by oversized but inefficient state-owned enterprises (SoEs). The second study adopts a nested logit approach, applying three data sets from the 2010-2014 CFPS. This approach explores how household investment choice differs with personal and household characteristics (e.g., such as health, demographic features, and institutional factors) across the broad investment categories of financial assets, private businesses, and real estate. I also employ a sub-sample from the 2012 CFPS that is restricted to parental households to examine how parenthood alters household investment decisions by building a binomial logistic model. The empirical results show that migration and income have a positive effect on investment decisions in the nested logit models. The evidence from the subsample finds that there are significant differences in the impact of demographic composition between investment categories. Using the 2010-2014 CFPS panel data, the third study investigates how household investment holdings vary according to demographic composition and intra-household bargaining strength in urban China. In addition, to explore the allocation of household investment, a further examination is carried out in the fixed-effect model with the specification of the Working-Leser function and in a Tobit model with two limits. Empirical evidence supports the following hypotheses: (a) changes in demographic composition considerably alter household investment holdings; and (b) the existence of a higher proportion of female children is strongly associated with an increase in household investments in financial assets.
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Books on the topic "Land surveys"

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Hendricks, Paul. Land mollusk surveys on USFS Northern Region lands. Helena, MT: Montana Natural Heritage Program, 2006.

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Roy, Minnick, and Pallamary Michael J, eds. Advanced land descriptions. Rancho Cordova, Calif: Landmark Enterprises, 1993.

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Hendricks, Paul. Land mollusk surveys on USFS Northern Region lands: 2006. Helena, MT: Montana Natural Heritage Program, 2007.

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Blain, H. D. Bibliography of Australian land resources surveys. Canberra, A.C.T: CSIRO, Institute of Biological Resources, Division of Water and Land Resources, 1985.

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Estopinal, Stephen V., ed. A Guide to Understanding Land Surveys. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470432778.

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Estopinal, Stephen V. A guide to understanding land surveys. 2nd ed. New York: Wiley, 1993.

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American Bar Association. Real Property Division., ed. Land surveys: A guide for lawyers. Chicago, Ill: Real Property Division, Real Property, Probate, and Trust Law Section, American Bar Association, 1989.

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Estopinal, Stephen V. A guide to understanding land surveys. 2nd ed. New York: Wiley, 1993.

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Western Australia. Ministry for Planning. Busselton, Dunsborough and Margaret River land use survey, 1998: Commercial, industrial and public purposes land use surveys. Perth, W.A: Ministry for Planning, 2001.

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1965-, Overheu T. D., Snell L. J, Johnston D. A. W, and Western Australia. Dept. of Agriculture., eds. Esperance land resource survey. South Perth, W.A: Dept. of Agriculture, 1993.

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Book chapters on the topic "Land surveys"

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Parrish, John S. "Land Surveys." In The Surveying Handbook, 928–56. Boston, MA: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4757-1188-2_27.

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Minnick, Roy. "Public-Land Surveys." In The Surveying Handbook, 957–1022. Boston, MA: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4757-1188-2_28.

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Minnick, Roy, and John S. Parrish. "Public-Land Surveys *." In The Surveying Handbook, 729–97. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-2067-2_30.

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Trevett, J. W. "Land use." In Imaging Radar for Resources Surveys, 184–204. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4089-5_10.

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Rafferty, Milton D. "Boundaries and Land Surveys." In Missouri, 39–48. 1. Missouri—Description and travel. 2. Missouri—Historical geography. I. Title. II. Series.: Routledge, 2019. http://dx.doi.org/10.4324/9780429048272-3.

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Van Pul, Paul. "Based on Detailed Land Surveys." In Hydrography and Navigation on the Congo River, 183–85. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-41065-9_22.

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Kellogg, Charles E. "Soil Surveys For Community Planning." In Soil Surveys and Land Use Planning, 1–7. Madison, WI, USA: Soil Science Society of America and American Society of Agronomy, 2015. http://dx.doi.org/10.2136/1966.soilsurveys.c1.

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MacCallum, Diana, Courtney Babb, and Carey Curtis. "Understanding Urban Change: Land Use Surveys." In Doing Research in Urban and Regional Planning, 91–102. New York : Routledge, 2019.: Routledge, 2019. http://dx.doi.org/10.4324/9781315818894-11.

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Quay, John R. "Use of Soil Surveys in Subdivision Design." In Soil Surveys and Land Use Planning, 76–86. Madison, WI, USA: Soil Science Society of America and American Society of Agronomy, 2015. http://dx.doi.org/10.2136/1966.soilsurveys.c8.

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Montgomery, P. H., and Frank C. Edminster. "Use of Soil Surveys in Planning for Recreation." In Soil Surveys and Land Use Planning, 104–12. Madison, WI, USA: Soil Science Society of America and American Society of Agronomy, 2015. http://dx.doi.org/10.2136/1966.soilsurveys.c10.

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Conference papers on the topic "Land surveys"

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Hwang, H. J., and S. Mahrooqi. "Broadband Desert Surveys – The Enabling Technology." In Land and Ocean Bottom; Broadband Full Azimuth Seismic Surveys Workshop. Netherlands: EAGE Publications BV, 2014. http://dx.doi.org/10.3997/2214-4609.20140384.

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Retailleau, M. R., N. B. Benjamin, and E. S. Suaudeau. "3D Land Broadband Data Needs Ultra Dense Acquisition." In Land and Ocean Bottom; Broadband Full Azimuth Seismic Surveys Workshop. Netherlands: EAGE Publications BV, 2014. http://dx.doi.org/10.3997/2214-4609.20140378.

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Davies, Mike, Robert Clark, and Ian Adsley. "High-Density Gamma Radiation Spectrometry Surveys of Contaminated Land." In ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2011. http://dx.doi.org/10.1115/icem2011-59076.

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The design of gamma radiation surveys of contaminated land has always had to compromise between the density of sampling and the accuracy of measurement. Large-area contamination is readily detected by a variety of measurement techniques, while the detection of small areas or ‘particles’ requires a high density of measurement, generally one measurement per square metre. High Resolution Gamma-radiation Spectrometry (HRGS) can provide accurate qualitative (radionuclide identification) and quantitative (Bq.g−1 of the radionuclide for a stated scenario) assessment of the state of the land, but are not cost effective at high density. In contrast, simple walk-over or ‘scan’ surveys using standard Health Physics instruments can provide a high density of measurement, but cannot provide the qualitative and quantitative accuracy of HRGS. In 1996, Nuvia Limited adopted methods to address some of these issues, by allowing scan surveys to include a degree of qualitative analysis of the gamma radiation detected using Low Resolution Gamma-radiation Spectrometry systems with Sodium Iodide detectors, while maintaining a high density of measurement. While low-resolution systems (including medium-resolution Lanthanum Bromide) have become the de-facto standard for large area land surveys, the use of the technology has changed little. High density scan surveys can be conducted using, for example, simple gross-gamma techniques, doserate or region-of-interest logging. However, if spectra are required for qualitative purposes, they are normally collected at fixed locations and for inconveniently long counting periods. The ideal would be to collect spectra at every measurement location, preferably once per second, and then ‘aggregate’ the spectra using spatially-aware techniques. This would allow a scan survey to be performed rapidly, while losing no spectral information. It would thus be possible to analyse the data in a number of ways, for example, producing justifiable doserate measurements or using neural-network techniques to search the measurements for spectral anomalies. This paper describes the work done by Nuvia to develop a system to collect spectra efficiently and to make the spectra readily available for a number of analyses. The efficiency of spectrum acquisition and compression are discussed, along with methods of managing the potentially large volumes of data. The analysis of the data, using a customised Geographical Information System is described, including spatial aggregation of spectra and semi-automatic analysis of spectral structure for identifying common ‘background’ features. Examples of the use of these facilities in Nuvia’s ‘Groundhog’ site survey service are provided.
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ELVIRA GUEVARA, MARÍA, and JUAN CAMILO ROJAS. "FLOOD MODELING USING CONVENTIONAL LAND SURVEYS, DIGITAL MAPPING, AND DRONE SURVEY." In 38th IAHR World Congress. The International Association for Hydro-Environment Engineering and Research (IAHR), 2019. http://dx.doi.org/10.3850/38wc092019-0828.

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Lu, G., D. Lin, Y. Chen, Y. Zhang, and R. Li. "Survey Matching to Enhance Seismic Resolution in Merged Land Seismic Surveys." In 85th EAGE Annual Conference & Exhibition - Workshop Programme. European Association of Geoscientists & Engineers, 2024. http://dx.doi.org/10.3997/2214-4609.202410901.

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Bull, A. "An Integrated Approach to Technology Development – Broadband Seismic on Land." In Land and Ocean Bottom; Broadband Full Azimuth Seismic Surveys Workshop. Netherlands: EAGE Publications BV, 2014. http://dx.doi.org/10.3997/2214-4609.20140383.

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Rawahi, S., S. Yarubi, A. Yahyai, K. Hunt, F. Clow, S. Abri, and J. Shorter. "Towards Successful Land Seismic Imaging - Sampling, WAZ and Recording Techniques." In Land and Ocean Bottom; Broadband Full Azimuth Seismic Surveys Workshop. Netherlands: EAGE Publications BV, 2014. http://dx.doi.org/10.3997/2214-4609.20140392.

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Malcolm Lansley, R. "Reducing the Cost of Land 3D Surveys." In 3rd International Congress of the Brazilian Geophysical Society. European Association of Geoscientists & Engineers, 1993. http://dx.doi.org/10.3997/2214-4609-pdb.324.5.

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Øzdemir, K., and N. El Allouche. "Acquisition Geometry Design for Land Seismic Surveys." In 81st EAGE Conference and Exhibition 2019. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201901402.

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Ghazali, A. R., F. A. Ghazali, L. C. Teck, N. El Kady, S. K. Sharma, and M. R. Abdul Rahman. "An Innovative Approach to 3D Survey Design to Meet Exploration and Development Objectives - An OBC Case History from Offshore Malaysia." In Land and Ocean Bottom; Broadband Full Azimuth Seismic Surveys Workshop. Netherlands: EAGE Publications BV, 2014. http://dx.doi.org/10.3997/2214-4609.20140377.

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Reports on the topic "Land surveys"

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Simms, Janet, Benjamin Breland, and William Doll. Geophysical investigation to assess condition of grouted scour hole : Old River Control Complex—Low Sill Concordia Parish, Louisiana. Engineer Research and Development Center (U.S.), September 2021. http://dx.doi.org/10.21079/11681/41863.

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Geophysical surveys, both land-based and water-borne, were conducted at the Old River Control Complex‒Low Sill, Concordia Parish, LA. The purpose of the surveys was to assess the condition of the grout within the scour region resulting from the 1973 flood event, including identification of potential voids within the grout. Information from the ground studies will also be used for calibration of subsequent marine geophysical data and used in stability analysis studies. The water-borne survey consisted of towed low frequency (16-80 MHz) ground penetrating radar (GPR), whereas the land-based surveys used electrical resistivity and seismic refraction. The GPR survey was conducted in the Old River Channel on the upstream side of the Low Sill structure. The high electrical conductivity of the water (~50 mS/m) precluded penetration of the GPR signal; thus, no useful data were obtained. The land-based surveys were performed on both northeast and southeast sides of the Low Sill structure. Both resistivity and seismic surveys identify a layered subsurface stratigraphy that corresponds, in general, with available borehole data and constructed geologic profiles. In addition, an anomalous area on the southeast side was identified that warrants future investigation and monitoring.
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Jha, Deepika, Sudeshna Mitra, Amlanjyoti Goswami, Sahil Sasidharan, and Kaye Lushington. Land Records Modernisation in India: Bihar. Indian Institute for Human Settlements, 2021. http://dx.doi.org/10.24943/9788195648535.

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This work provides an institutional, legal and policy review of crucial aspects of land records modernisation systems in Bihar. The state’s progress with land records modernisation efforts has been historically slow but in the last few years, it has taken long strides in computerisation of land records and associated processes, and is on the way to a more accessible land information system. Bihar is a significant example to understand that in certain parts of India, issues of land and property ownership are embedded in socio-historical conditions, which can be addressed only in part by current modernisation efforts. The state is undertaking an attempt to address some of these issues through a resurvey, supported by large scale strengthening of capacity, and legislative framework. The ability of the state to address multiple claims in a judicious and timebound manner would determine, to a large extent, how successful these ongoing surveys and computerisation initiatives will be.
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Czaplewski, Raymond L. Recursive restriction estimation: an alternative to post-stratification in surveys of land and forest cover. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2010. http://dx.doi.org/10.2737/rmrs-rp-81.

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Rastorfer, J. R., and S. D. Zellmer. Land rehabilitation of the McKenna Hill drop zone, Fort Benning Military Reservation, Georgia : surveys of spontaneous vascular vegetation. Office of Scientific and Technical Information (OSTI), November 2000. http://dx.doi.org/10.2172/772140.

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Idei, Rika, Masahiro Nishimura, Takashi Yamano, Niklas Sieber, Pradyumna Kumar Kar, Murali Krishna Gumma, and Pranay Panjala. Impact Evaluation of Road Improvements: Baseline Survey in Maharashtra State of India. Asian Development Bank, July 2024. http://dx.doi.org/10.22617/wps240332-2.

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The Asian Development Bank approved the additional financing for the Maharashtra Rural Connectivity Improvement Project in 2021 to help improve the rural road network and, consequently, the economic development of India’s Maharashtra State. To evaluate the impacts of the project, a baseline survey was conducted using structured interview formats before the project implementation, and an ex-post survey is planned upon project completion. This paper discusses the methodology for the project’s impact evaluation, summarizes the findings from the baseline survey, and introduces an assessment of land use and changes using time-series satellite images, which is expected to supplement the structured interview surveys.
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Luternauer, J. L. 1989 Field Activities and Accomplishments of Geophysical and Geotechnical Land - Based Operations and Marine / Fluvial Surveys, Fraser River Delta, British Columbia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1990. http://dx.doi.org/10.4095/131391.

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Roberts, Samuel, Elizabeth Tymkiw, Zachary Ladin, and Greg Shriver. Status and trends of landbird populations in the Northern Colorado Plateau Network: 2022 field season. Edited by Alice Wondrak Biel. National Park Service, June 2023. http://dx.doi.org/10.36967/2299435.

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In 2022, the University of Delaware, in cooperation with the National Park Service (NPS), completed the seventeenth year of a habitat-based landbird monitoring program in park units of the Northern Colorado Plateau Network (NCPN). This program is designed to provide rigorous population trend data for most diurnal, regularly occurring breeding landbird spe-cies throughout the network. This population information is useful for land managers and supports the National Park Service’s goal of long-term monitoring of biological indicators for network parks. In 2022, university biologists surveyed all 45 survey locations within 11 NPS units. Fifteen transects were located in each of the three habitats of interest: low-elevation riparian, pin-yon-juniper, and sagebrush shrubland. Each location was surveyed once. In addition to the habitat-based surveys, four point counts and an area search were conducted at Pipe Spring National Monument using a modified monitoring design. Over 17 years of data collection, 15,777 point-count surveys have been conducted in 11 NCPN units, detecting 179 unique species. During the 2022 field season, 638 point-count surveys were conducted, detecting 117 unique species. A total of 6,245 individual birds of 117 unique species were recorded. One new species was detected for this monitoring pro-gram: a Lewis’s woodpecker (Melanerpes lewis) in Black Canyon of the Gunnison National Park. In addition, the following birds were detected in the following parks for the first time in this monitoring program: lazuli bunting (Passerina amoena), Black Canyon of the Gun-nison National Park; summer tanager (Piranga rubra), Arches National Park; MacGillivray’s warbler (Geothlypis tolmiei), Bryce Canyon National Park; red-naped sapsucker (Sphyrapicus nuchalis), Curecanti National Recreation Area, and Lincoln’s sparrow (Melospiza lincolnii), Zion National Park.
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Roberts, Samuel, Elizabeth Tymkiw, Zachary Ladin, and Greg Shriver. Status and trends of landbird populations in the Northern Colorado Plateau Network: 2023 field season. National Park Service, 2024. http://dx.doi.org/10.36967/2304411.

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In 2023, the University of Delaware, in cooperation with the National Park Service (NPS), completed the eighteenth year of a habitat-based landbird monitoring program in park units of the Northern Colorado Plateau Network (NCPN). This program is designed to provide rigorous population trend data for most diurnal, regularly occurring breeding landbird species throughout the network. This population information is useful for land managers and supports the NPS?s goal of long-term monitoring of biological indicators for network parks. University biologists surveyed 42 out of 45 survey locations within 11 NPS units in 2023. Fifteen transects were located in each of the three habitats of interest: low-elevation riparian, pinyon-juniper, and sagebrush shrubland. Each location was surveyed once. In addition to the habitat-based surveys, four point-count surveys and an area search were conducted at Pipe Spring National Monument using a modified monitoring design. Over 18 years of data collection, 16,159 point-count surveys were conducted in 11 NCPN units, detecting 176 unique species. During the 2023 field season, 599 point-count surveys were conducted, detecting 118 unique species. In addition, since 2009, a modified protocol that includes four point counts and an area search has been conducted at Pipe Spring National Monument. Using data from 2005 to 2023, 118 population-density trends were estimated across the three habitats. Fourteen of the estimated density trends were significant (p-value <0.05). Six negative trends were observed: mourning dove (Zenaida macroura) and white-throated swift (Aeronautes saxatalis) in low-elevation riparian, and mourning dove, white-throated swift, Bewick?s wren (Thryomanes bewickii), and mountain bluebird (Sialia currucoides) in pinyon-juniper areas. Additionally, eight positive trends were found: hairy woodpecker (Leuconotopicus villosus) in low-elevation riparian; lazuli bunting (Passerina amoena), yellow-rumped warbler (Setophaga coronata), vesper sparrow (Pooecetes gramineus), and western tanager (Piranga ludoviciana) in pinyon-juniper habitats; and western tanager, Grace?s warbler (Setophaga graciae) and lark sparrow (Chondestes grammacus) in sagebrush shrubland. There were sufficient sample sizes to estimate the densities of 61 species in at least one of the three habitats surveyed.
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Baek, So-Ra, and Dohyung Kim. A Guide to Navigating Existing and Emerging Sources of Local VMT and Travel Data. Mineta Transporation Institute, November 2023. http://dx.doi.org/10.31979/mti.2023.2232.

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As the crisis of climate change looms, transportation policy in California continues to emphasize sustainability in land-use and transportation decisions. This report evaluates the implementation of two sustainability-focused policies (Senate Bill 375 and 743) by local governments and the current-state-of-the-practices by metropolitan planning organizations (MPOs) in assisting them in California. The research focuses on local governments’ access and use of vehicle miles traveled (VMT) and transportation data for achieving VMT and greenhouse gas (GHG) reduction by land-use planning. The research also examines the role of MPOs in providing needed transportation data, training, and technical support to its local members to help them quantify VMT impacts of land-use plans and projects. Through surveys and interviews of 539 city and county governments and 18 MPOs in California, the research team analyzes current practices. Findings include that local governments utilize automobile data more frequently than alternative modes, and do not heavily rely on MPOs for obtaining transportation data. Local governments recognized the need for more transportation data and were particularly interested in publicly available sources. The MPOs reported that VMT/annual average daily traffic data and origin-destination matrix were most frequently requested. More sophisticated data such as travel-time matrix and mode-share scheme were considered useful by the MPOs, while requests were very low. Based on the results of the conducted surveys, interviews, and our analyses, we developed a transportation data guide for local governments that could help them access data for achieving VMT/GHG emission reduction via land-use planning. The guide has two parts, one for general plan update and any land-use plans along with SB 375 and the other for VMT analysis for project-level California Environmental Quality Act reviews. The guide includes several different approaches that can be chosen and tried by local governments depending on their resource level and geographic, social, and physical characteristics. These findings can facilitate the access and use of transportation data to aid in sustainable land-use planning for the betterment of local communities and the planet.
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Lewis, Sherman, Emilio Grande, and Ralph Robinson. The Mismeasurement of Mobility for Walkable Neighborhoods. Mineta Transportation Institute, November 2020. http://dx.doi.org/10.31979/mti.2020.2060.

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The major US household travel surveys do not ask the right questions to understand mobility in Walkable Neighborhoods. Yet few subjects can be more important for sustainability and real economic growth based on all things of value, including sustainability, affordability, and quality of life. Walkable Neighborhoods are a system of land use, transportation, and transportation pricing. They are areas with attractive walking distances of residential and local business land uses of sufficient density to support enough business and transit, with mobility comparable to suburbia and without owning an auto. Mobility is defined as the travel time typically spent to reach destinations outside the home, not trips among other destinations that are not related to the home base. A home round trip returns home the same day, a way of defining routine trips based on the home location. Trip times and purposes, taken together, constitute travel time budgets and add up to total travel time in the course of a day. Furthermore, for Walkable Neighborhoods, the analysis focuses on the trips most important for daily mobility. Mismeasurement consists of including trips that are not real trips to destinations outside the home, totaling 48 percent of trips. It includes purposes that are not short trips functional for walk times and mixing of different trips into single purposes, resulting in even less useful data. The surveys do not separate home round trips from other major trip types such as work round trips and overnight trips. The major household surveys collect vast amounts of information without insight into the data needed for neighborhood sustainability. The methodology of statistics gets in the way of using statistics for the deeper insights we need. Household travel surveys need to be reframed to provide the information needed to understand and improve Walkable Neighborhoods. This research makes progress on the issue, but mismeasurement prevents a better understanding of the issue.
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