Relevant bibliographies by topics / Aerial photography in soil surveys

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
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Academic literature on the topic 'Aerial photography in soil surveys'

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

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Journal articles on the topic "Aerial photography in soil surveys"

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Đorđević, Dejan Radovan, Uroš Đurić, Saša Tomislav Bakrač, Siniša Milanko Drobnjak, and Stevan Radojčić. "Using Historical Aerial Photography in Landslide Monitoring: Umka Case Study, Serbia." Land 11, no. 12 (December 13, 2022): 2282. http://dx.doi.org/10.3390/land11122282.

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The application of remote sensing methods provides useful information that can be used for numerous research. Thus, spatial changes in soil, vegetation, hydrography and such can be analyzed. By analyzing the data obtained by remote sensing methods, high-quality and important data can be obtained for monitoring changes in soil movement caused by landslides. This method provides the possibility of determining the state of the observed space over a longer period of time. Historical aerial imagery has a high level of spatial detail analysis. Comparative analysis of the aerial imagery from the past, recent ones and other surveys can certainly provide information on the trend of ground movement, as well as lead to conclusions for taking specific measures. The present paper gives an example of the analysis of the particular area of the “Umka” landslide based on historical surveys. The “Umka” landslide is located along the right bank of the Sava River near the city of Belgrade, which, with its long-term activity, jeopardizes residential buildings, infrastructure facilities and the population that still lives on it.
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Indra Agus Riyanto, Ahmad Cahyadi, Dwi Sismoyo, Azura Ulfa, Wilda Aulia Fathoni, and Ghalih Nur Wicaksono. "Geomorfologi Tanah Pada Transisi Geologi Formasi Wonosari dan Nglanggran di Kecamatan Purwosari Gunungkidul Yogyakarta." Jurnal Geografi, Edukasi dan Lingkungan (JGEL) 6, no. 2 (July 26, 2022): 74–86. http://dx.doi.org/10.22236/jgel.v6i2.9072.

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The transition zone of the Wonosari and Nglanggran Formation in Purwosari District has the characteristics of thick soil, steep slopes, and no outcrops. The different characteristics found in the Wonosari Formation Zone are characterized by polygonal karst formations with thin soil and limestone rocks, and the Nglanggran Formation in the form of thick soil, andesite rock outcrops, and steep slopes. Geomorphological mapping of the Nglanggran and Wonosari Formation can be done easily through morphological approaches and outcrops. Geomorphological mapping is quite difficult to do in the transition of the Wonosari and Nglanggran Formation because it does not have outcrops and is difficult to interpret from morphology. Soil geomorphological approach needs to be done to define landform units for areas that do not have outcrops dan difficult to interpret through morphology. The purpose of this study was to map the geomorphological distribution of soil characteristics in the geological transition zone. The methods used to identify landform units are morphological delineation and soil survey. The morphological delineation for landform units was obtained from aerial photographs. The results of the delineation of landforms from aerial photographs are detailed by soil surveys. The results of the delineation of landforms using aerial photography produce high resolution, smooth, and firm compared to other sources. The results of the delineation of landforms from aerial photos obtained two units of landforms, limestone karst hills, Wonosari formation and andesitic rocky hills, Nglanggran formation. There is a transitional transition zone in the TP7 soil sample with the color change from dark brown (karst) to light brown (old volcanic). The thickness of the soil in the old volcanic is more than 1 meter and deeper than the karst soil (< 60 cm). The transition zone has three soil horizons A, B, and B/C which are classified as more developed than the karst region (A and B horizons). The soil texture in old volcanic is clay and silt, while the dominant karst area is clay.
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Lian, Jie, Xiangwen Gong, Xinyuan Wang, Xuyang Wang, Xueyong Zhao, Xin Li, Na Su, and Yuqiang Li. "Mapping of Soil Organic Carbon Stocks Based on Aerial Photography in a Fragmented Desertification Landscape." Remote Sensing 14, no. 12 (June 13, 2022): 2829. http://dx.doi.org/10.3390/rs14122829.

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Northern China’s agropastoral ecotone has been a key area of desertification control for decades, and digital maps of its soil organic carbon (SOC) stocks are needed to reveal the gaps between the actual SOC levels and baseline to support land degradation neutrality (LDN) under the Sustainable Development Goals. However, reliable soil information is scarce, and accurate prediction is hindered by the fragmented landscape, which is a dominant characteristic of desertified land. To improve the patchiness identification and accuracy of SOC prediction, we conducted field surveys and collected low-altitude aerial images along the desertification degrees (severe and extremely severe, moderate, slight) in the Horqin Sandy Land. Linear regressions were performed on the relationships between the normalized difference vegetation index and the fractional vegetation cover (FVC) extracted from aerial images, and regression kriging was applied to predict SOC stocks based on the soil-forming factors (vegetation, climate, and topography). Our prediction and cross-validation showed that the fragmented structure and prediction accuracy of SOC stocks were both greatly improved for desertified land. The FVC (R2c = 0.94) and evapotranspiration (R2c = 0.86) had significant positive effects on SOC stocks, respectively, with indirect and direct causal relationships. Our results could provide soil information with better patchiness and accuracy to help policymakers determine the future LDN status in this fragmented desertification landscape. As drone technology becomes more available, it will fully support digital mapping of soil properties.
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Yan, Jun Xia, and Jian Feng Zhang. "Consequences of Land Use in an Intensive Region in North China Plain." Advanced Materials Research 588-589 (November 2012): 1999–2002. http://dx.doi.org/10.4028/www.scientific.net/amr.588-589.1999.

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Land use changes and land intensification has played a more and more important role in food production. The environment has been influenced by it greatly. Land use data were derived from several sources: aerial photographs, current land use maps, Second National Soil Survey (SNSS) map, and fieldwork. The aerial photographs, 1:50,000 for both 1980 and 2006 were obtained from the Department of Surveys and Mapping (DSM). Bulk soil samples were collected at 79 sites across Quzhou district. Samples were collected again at the same locations in 2000 and 2006. To compare the soil data of 2006, 2000 and 1980, latitude and longitude of the sampling locations were recorded using the Global Position System at the time of soil collection. The samples site selection was done on behalf of the Second National Soil Survey. A great change had taken place in land use and land use intensification. The changes, which have converted natural landscapes into the use for human, have made a large proportion of the Quhzou’s landscape change greatly.
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Zhurbin, Igor V., and Alexander V. Borisov. "Non‐destructive approach for studying medieval settlements destroyed by ploughing: combining aerial photography, geophysical and soil surveys." Archaeological Prospection 27, no. 4 (May 31, 2020): 343–60. http://dx.doi.org/10.1002/arp.1778.

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Grevtseva, A. S., R. A. Dmitriev, and A. Zhuchenko. "Restoration of surface soil contamination density to radionuclides at according to aerial photography." IOP Conference Series: Earth and Environmental Science 1096, no. 1 (October 1, 2022): 012012. http://dx.doi.org/10.1088/1755-1315/1096/1/012012.

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Abstract The problems that arise in the surface layer of the soil during periodic emissions at nuclear power plants are considered. The necessity of constant monitoring of this soil layer at different times of the year is substantiated. Various methods of this control are considered. It has been established that it is extremely difficult to implement them in remote areas. A method has been developed for monitoring the surface layer of the soil using aerodynamic survey of the distribution of γ-radiation on the soil surface. This is extremely important during the preparation of agricultural fields for sowing crops in the spring. A new algorithm for restoring images obtained using aerodynamic imaging of γ-radiation is proposed. The results of a new algorithm for image processing and identification are presented.
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Reddy, R. S., D. Goosen, and G. W. W. Elbersen. "A methodology for semi detailed soil surveys using medium scale aerial photographs." Journal of the Indian Society of Remote Sensing 13, no. 2 (December 1985): 1–11. http://dx.doi.org/10.1007/bf02990723.

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Jones, R. G. B., and M. A. Keech. "IDENTIFYING AND ASSESSING PROBLEM AREAS IN SOIL EROSION SURVEYS USING AERIAL PHOTOGRAPHS." Photogrammetric Record 5, no. 27 (August 26, 2006): 189–97. http://dx.doi.org/10.1111/j.1477-9730.1966.tb00868.x.

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Hulko, O., and Yu Khavar. "Application of space photography methods for monitoring of agricultural lands as an example of countries of the world and Ukraine." Balanced nature using, no. 3 (July 4, 2022): 98–103. http://dx.doi.org/10.33730/2310-4678.3.2022.266563.

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It has been established that with the development of society, the growth of the impact of human actions on the agro-ecological system of the Earth, and at the same time the satisfaction of its life activity, there is a need to apply new methods in the management of natural resources. Today, space photography, which is carried out through various carriers from space with the support of filming equipment, is the primary means of obtaining information. It is highlighted that information from space and photo-aerial imaging is sufficiently used in cartography, when solving problems in all areas of science and technology and the formation of geo-information systems. Every year, the volume of products related to mapping and geoinformation expands, new areas for using information from space surveys appear. The specificity of space surveying for several decades is the acquisition of data from aerial surveys with very high spatial resolution (<1 m), the growth in the spectral resolution of surveying systems and the implementation of spectral surveying. It is highlighted that by the model of remote sensing of the Earth we understand the system of receiving and converting input signals of the electromagnetic spectrum into outputs that form images or point output data about objects on the terrain. It is emphasized that in the last decades, remote sensing of the Earth is especially used to obtain informative data about the agro-ecological surface of the earth. Natural characteristics of soil types, vegetation, etc. were obtained with the help of remote sensing of the Earth. Many countries of the world use the information obtained with the help of aerospace means of remote sensing of the Earth quite widely, on its basis they successfully search for minerals, assess the rural potential of regions and countries, conduct analysis of agricultural lands, distinguish types and types of agricultural crops, implement yield forecasts, monitor the condition soils and pastures, perform its monitoring. The crisis of a soil science nature in Ukraine is caused by the functioning of the administrative-command economy in the past.
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Kristina Sergeevna, K. S. "Assessment of the condition of underground engineering structures of the reclamation system using humidity maps obtained from remote sensing data of the earth by the DJI Phantom 4 Multispectra unmanned aerial vehicle." Prirodoobustrojstvo, no. 3 (2023): 31–37. http://dx.doi.org/10.26897/1997-6011-2023-3-31-37.

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Reclamation system is a complex of engineering structures and devices that ensure the creation of the required water, air, thermal and nutrient regimes of soils. The composition of reclamation systems includes underground pipelines, drains, hydraulic structures that may fail and require repair, but it is impossible to detect a problem area without monitoring the area of the system by antediluvian methods or conducting survey work. The purpose of the work: to justify the use of soil moisture maps obtained by the DJI PHANTOM 4 MULTISPECTRA UAV to identify problem areas of the reclamation network or vice versa absence. Aerial photography was carried out in May 2021 on the treated section of the drainage and humidification network of the Yakhrom floodplain of the Moscow region. As a result of the survey, a digital relief model, an operational humidity map based on the calculated NDWI water index were obtained. The flight altitude of the quadcopter was 180 m above the earth’s surface, the pixel size of the image of the earth’s surface to be 7.9 cm. According to the results of aerial photography on the selected site, the absolute marks of the earth’s surface vary from 134.67 to 135.23. On average, the slope of the earth’s surface of the selected site is 0.002 in the direction from northwest to southeast. There are no pronounced microforms of relief moisture in the surface layer of the soil obtained in the field corresponds to the variety of color areas of the NDWI water indices highlighted on the operational humidity map. In the soil conditions of the studied area, the moisture content of the surface soil layer is logarithmic with the normalized difference water index NDWI. The correlation coefficient is 0.9 ± 0.06, which indicates a very high relationship between the studied indicators. Such a map can be used to identify problem areas of the reclamation network.
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Dissertations / Theses on the topic "Aerial photography in soil surveys"

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Silva, Hugo Amancio Sales [UNESP]. "Dinâmica da paisagem na microbacia hidrográfica do rio Mojuí, oeste do estado do Pará." Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/93827.

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Made available in DSpace on 2014-06-11T19:26:47Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-08-02Bitstream added on 2014-06-13T20:15:44Z : No. of bitstreams: 1 000755428.pdf: 1772727 bytes, checksum: 25340537986dda5d7885dbce168e3429 (MD5)
Atualmente, as questões conservacionistas têm sido discutidas com grande ênfase pela sociedade em geral, principalmente sobre a paisagem amazônica. Dentro desse contexto está a bacia hidrográfica do rio Mojuí, localizada nos municípios de Santarém e Belterra, no estado do Pará. Esta vem sofrendo constantes explorações dos seus recursos naturais, principalmente devido à conversão de áreas com florestas em áreas agrícolas, principalmente para cultivo da soja. O objetivo deste trabalho foi caracterizar, mapear e quantificar, em escala de semi detalhe, as áreas das classes de cobertura vegetal e uso da terr0a no período de 11 anos, com o uso de imagens LANDSAT, órbita/ pontos 227/62, bandas TM 3, 4 e 5, referentes aos anos de 1999, 2005 e 2010, a dinâmica da paisagem na região. A seleção das imagens foi determinada considerando-se o período climático semelhante, com as mesmas circunstâncias de iluminação e cobertura de nuvens. Os limites da bacia foram estabelecidos pelos divisores topográficos que formam a área que drena para um ponto específico. Baseando-se nos dados obtidos no levantamento de campo e com o suporte da fotointerpretação das cenas dos sensores nos anos estabelecidos pela pesquisa, foi definida uma legenda temática para classificação da vegetação e uso do solo na bacia, sendo identificadas sete formas de coberturas vegetais e uso do solo na área de abrangência da bacia. Foram estabelecidas as seguintes classes de cobertura do solo...
Currently, conservation issues have been discussed with great emphasis by society in general, especially on the Amazon landscape. Within this context is Mojuí River watershed, located in the cities of Santarém and Belterra, in the state of Pará This comes under constant exploration of natural resources, mainly due to conversion of forest areas into agricultural areas, mainly for soybeans cultivation. The aim of this study was to characterize and quantify mapping , semi -scale detail , the areas of vegetation cover classes and land use in the period of 11 years as use of LANDSAT , orbit / points 227/62 , TM bands 3 , 4:05 , for the years 1999 , 2005 and 4 2010 , the landscape dynamics in the region . The selection of images was determined considering the similar climatic period, with the same lighting conditions and cloud cover. The boundaries of the basin were established by dividers that form the topographic area that drains to a specific point. Based on the data obtained in the field survey and with the support of photointerpretation the scenes of the sensors in the years established by research, has defined a thematic caption for vegetation classification and land use in the basin, identified seven forms of vegetation and land use in the catchment area of the basin. We defined the following classes of land cover: Rain Forest , Secondary Succession , Alluvial Rain Forest , Grassland , Degraded Grassland , Agriculture and Water Bodies . During the research it was observed that the Moju river watershed has lost 221.73 km² of natural vegetation cover (dense ombrophilous forest, alluvial dense ombrophilous forest). Until 1999 the dense ombrophilous forest class was the largest present at the watershed, however from 2005 on the agricultural class became the largest at that location, with an increase of approximately 518.11% of the initial research area. When the results were analyzed more ...
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Silva, Hugo Amancio Sales 1988. "Dinâmica da paisagem na microbacia hidrográfica do rio Mojuí, oeste do estado do Pará /." Botucatu:, 2013. http://hdl.handle.net/11449/93827.

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Orientador: Sérgio Campos
Banca: Ellen Fitipaldi Brasilio Carrega
Banca: Maria Nazaré Martins Maciel
Resumo: Atualmente, as questões conservacionistas têm sido discutidas com grande ênfase pela sociedade em geral, principalmente sobre a paisagem amazônica. Dentro desse contexto está a bacia hidrográfica do rio Mojuí, localizada nos municípios de Santarém e Belterra, no estado do Pará. Esta vem sofrendo constantes explorações dos seus recursos naturais, principalmente devido à conversão de áreas com florestas em áreas agrícolas, principalmente para cultivo da soja. O objetivo deste trabalho foi caracterizar, mapear e quantificar, em escala de semi detalhe, as áreas das classes de cobertura vegetal e uso da terr0a no período de 11 anos, com o uso de imagens LANDSAT, órbita/ pontos 227/62, bandas TM 3, 4 e 5, referentes aos anos de 1999, 2005 e 2010, a dinâmica da paisagem na região. A seleção das imagens foi determinada considerando-se o período climático semelhante, com as mesmas circunstâncias de iluminação e cobertura de nuvens. Os limites da bacia foram estabelecidos pelos divisores topográficos que formam a área que drena para um ponto específico. Baseando-se nos dados obtidos no levantamento de campo e com o suporte da fotointerpretação das cenas dos sensores nos anos estabelecidos pela pesquisa, foi definida uma legenda temática para classificação da vegetação e uso do solo na bacia, sendo identificadas sete formas de coberturas vegetais e uso do solo na área de abrangência da bacia. Foram estabelecidas as seguintes classes de cobertura do solo ...
Abstract: Currently, conservation issues have been discussed with great emphasis by society in general, especially on the Amazon landscape. Within this context is Mojuí River watershed, located in the cities of Santarém and Belterra, in the state of Pará This comes under constant exploration of natural resources, mainly due to conversion of forest areas into agricultural areas, mainly for soybeans cultivation. The aim of this study was to characterize and quantify mapping , semi -scale detail , the areas of vegetation cover classes and land use in the period of 11 years as use of LANDSAT , orbit / points 227/62 , TM bands 3 , 4:05 , for the years 1999 , 2005 and 4 2010 , the landscape dynamics in the region . The selection of images was determined considering the similar climatic period, with the same lighting conditions and cloud cover. The boundaries of the basin were established by dividers that form the topographic area that drains to a specific point. Based on the data obtained in the field survey and with the support of photointerpretation the scenes of the sensors in the years established by research, has defined a thematic caption for vegetation classification and land use in the basin, identified seven forms of vegetation and land use in the catchment area of the basin. We defined the following classes of land cover: Rain Forest , Secondary Succession , Alluvial Rain Forest , Grassland , Degraded Grassland , Agriculture and Water Bodies . During the research it was observed that the Moju river watershed has lost 221.73 km² of natural vegetation cover (dense ombrophilous forest, alluvial dense ombrophilous forest). Until 1999 the dense ombrophilous forest class was the largest present at the watershed, however from 2005 on the agricultural class became the largest at that location, with an increase of approximately 518.11% of the initial research area. When the results were analyzed more ...
Mestre
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Grotefendt, Richard. "Accurate and cost-effective natural resource data from super large scale aerial photography /." Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/5454.

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Korpela, Ilkka. "Individual tree measurements by means of digital aerial photogrammetry." Helsinki : Finnish Forest Research Institute, Finnish Society of Forest Science, 2004. http://catalog.hathitrust.org/api/volumes/oclc/55872310.html.

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Knapp, Paul Aaron. "THE USE OF LARGE-SCALE AERIAL PHOTOGRAPHY FOR DETECTING CHANGES OF AN ARID RANGELAND IN SOUTHWESTERN ARIZONA." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/292059.

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Interpretation of large-scale color infrared and color aerial photography can be a labor and cost-effective means for inventorying and monitoring rangelands while maintaining accuracy. Ground measurements of vegetation cover at Organ Pipe Cactus National Monument were taken in 1975 and 1984. Large-scale (1:1200) color and color infrared aerial photo estimates were compared to these ground measurements through regression and correlation to check photo accuracy. Relationships between photo estimates and ground measurements of total vegetation and shrub cover were strong when using either film type. Color infrared photo estimates corresponded better with ground measurements for both tree cover and cactus cover than color photo estimates. Large-scale aerial photography is also useful for determining some of the causes of vegetation change. Evidence gathered from both sets of photos suggested that vegetation change at OPCNM was largely the result of domestic livestock removal and short-term climatic fluctuations.
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Bleier, Mary F. "Use of prior distributions from aerial photographs in forest inventory." Thesis, Virginia Tech, 1986. http://hdl.handle.net/10919/41543.

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Bayesian estimates of gross cubic- foot volume per acre were computed for four stand types (plantation pine, natural pine. hardwood. and mixed wood stands) using aerial photo volume tables as the prior information source. Aerial photographs provided a reliable source of information even though most photographs were nearly five years old. For a given level of precision within a particular stand, Bayesian methods reduced the required field sample size up to 50% using all or half of the prior information available. Those priors which utilized a regression or a regression/topographic correction in the estimation of photo heights required less field information for the given precision level than those priors which used uncorrected or topographic corrected photo heights. In order to obtain meaningful gains in sample size reduction corrections to the estimated photo heights should be made. Although the uncorrected prior produced generally less biased estimates. the reduction in sample size was not as large as that observed using other prior types. Greater gains were attributed to the better accuracy of the prior distribution. Although Bayesian methods are biased, it appeared that these methods tempered severely biased prior distributions. In the hardwood stand for example, the average bias present in the photo volume data amounted to -140%. After combining the prior with the field sample, the greatest average bias was -50%. Bayesian methods performed better than the traditional estimation methods in terms of precision. In a one to one comparison. the Bayes standard error was consistently less than its non-Bayes counterpart. The one exception to this trend was the regression prior from the hardwood stand. The poor performance of the prior was due to the weak height regression correction equation. Modal priors utilized were not subject to the extreme input values for prior distribution development as their conservative empirical prior counterparts were. Less overall variation was observed 1n the estimated values. Under the conditions for mode selection set forth in this project, modal priors provided another good source of prior information.
Master of Science
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Metzler, Jacob W. "Use of Multi-temporal IKONOS and LANDSAT ETM+ Satellite Imagery to Determine Forest Stand Conditions in Northern Maine." Fogler Library, University of Maine, 2004. http://www.library.umaine.edu/theses/pdf/MetzlerJW2004.pdf.

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Holmström, Hampus. "Data acquisition for forestry planning by remote sensing based sample plot imputation /." Umeå : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2001. http://epsilon.slu.se/avh/2001/91-576-6086-7.pdf.

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Jodry, Réal. "La télédétection multibande aéroportée MEIS II et DAEDALUS MSS appliquée à la cartographie forestière de la station Simoncouche /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 1996. http://theses.uqac.ca.

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Pelcat, Yann S. "Soil landscape characterization of crop stubble covered fields using Ikonos high resolution panchromatic images." Thesis, Winnipeg : University of Manitoba, 2006. http://www.collectionscanada.ca/obj/s4/f2/dsk3/MWU/TC-MWU-224.pdf.

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Thesis (M.Sc.)--University of Manitoba, 2006.
A thesis submitted to the Faculty of Graduate Studies in partial fulfillment of the requirements for the degree of Master of Science, Department of Soil Science. Includes bibliographical references.
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Books on the topic "Aerial photography in soil surveys"

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Farrell, Susan. Evaluation of color infrared aerial surveys of wastewater soil absorption systems. Cincinnati, OH: U.S. Environmental Protection Agency, Water Engineering Research Laboratory, 1985.

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von, Schönermark Maria, Geiger Bernhard, and Röser Hans-Peter, eds. Reflection properties of vegetation and soil: With a BRDF data base. Berlin: W&T Verlag, 2004.

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Trovillion, Ned. Natural resources survey of the Cypress, Illinois quadrangle: A partial inventory of the soil, water, plant & human resources of the area. Champaign, Ill.]: USDA, Natural Resources Conservation Service, 1999.

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United States. Natural Resources Conservation Service, ed. Natural resources survey of the cypress, Illinois Quadrangle: A partial inventory of the soil, water, plant, & human resources of the area. [Washington, D.C.?]: USDA, Natural Resources Conservation Service, 1999.

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United States. Natural Resources Conservation Service., ed. Natural resources survey of the cypress, Illinois Quadrangle: A partial inventory of the soil, water, plant, & human resources of the area. [Washington, D.C.?]: USDA, Natural Resources Conservation Service, 1999.

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Ripple, William J. Assessing elk trail and wallow impacts in Mount Rainier National Park: First year activities : final report for period August 1985 through July 1986. [Corvallis, Or: Environmental Remote Sensing Applications Laboratory (ERSAL), Oregon State University, 1986.

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Ripple, William J. Assessing elk trail and wallow impacts in Mount Rainier National Park: Final report. Corvallis, Or: Environmental Remote Sensing Applications Laboratory - ERSAL, Oregon State University, College of Forestry, 1988.

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Johnson, Scott W. Fixed-wing aerial photography surveys of plastic debris on an Alaskan beach. [Seattle, Wash.]: Alaska Fisheries Science Center, National Marine Fisheries Service, U.S. Dept. of Commerce, 1992.

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Johnson, Scott W. Fixed-wing aerial photography surveys of plastic debris on an Alaskan beach. [Seattle, Wash.]: Alaska Fisheries Science Center, National Marine Fisheries Service, U.S. Dept. of Commerce, 1992.

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Centre, Great Lakes Forestry, and Dendron Resource Surveys Ltd, eds. Enhancing Ontario's forest resource inventory using large-scale sampling photographs. Sault Ste Marie, Ont: Great Lakes Forestry Centre, 1997.

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Book chapters on the topic "Aerial photography in soil surveys"

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Harrison, W. D., M. E. Johnson, and P. F. Biggam. "Video Image Analysis of Large-scale Vertical Aerial Photography to Facilitate Soil Mapping." In Soil Survey Techniques, 1–9. Madison, WI, USA: Soil Science Society of America, 2015. http://dx.doi.org/10.2136/sssaspecpub20.c1.

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Franzen, David W., Lance Reitmeier, Joseph F. Giles, and Allan C. Cattanach. "Aerial Photography and Satellite Imagery to Detect Deep Soil Nitrogen Levels in Potato and Sugarbeet." In Proceedings of the Fourth International Conference on Precision Agriculture, 281–90. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/1999.precisionagproc4.c24.

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Keefer, Robert F. "Use of Soil Surveys for Landscape Architecture." In Handbook of Soils for Landscape Architects. Oxford University Press, 1999. http://dx.doi.org/10.1093/oso/9780195121025.003.0003.

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Modern soil survey reports, published since about 1959, have a wealth of information that could be useful for landscape architects. Characteristics of each specific soil are detailed in the text of the soil survey. Distinct kinds of soils for a specific site can be identified from the soil designation on the aerial photographs at the back of the report. Considerable specific information is provided in tables, including data on temperature, precipitation, freeze dates in spring and fall, woodland management and productivity, recreational development capabilities, wildlife habitat potentials, building site development possibilities, sanitary disposal potentials, engineering properties, value of materials for construction, water management limitations, physical and chemical properties of specific soils, and soil and water features. Modern soil survey reports consist of text, tables, soil maps, and often a glossary. These reports are available free to the public and are usually found in county extension services offices, soil conservation district offices, or state agricultural colleges. The text of a soil survey report describes the general nature of the county as to location in the state, climate, physiography, relief and drainage, geology, farming, natural resources, industries, history of settlement, and how the survey was conducted. Soil associations and individual soils are described in detail. Formation of soils is usually discussed in relation to the factors of soil formation. A glossary of terms is often provided for the nonscientific person. The whole county or counties in the report is shown on a soil association map, which is designed to be used to compare the suitability of large areas for general land use. The county is divided into large areas, each of which contains an association of several soils grouped by similar management. Usually from 5 to 15 soil associations are shown with a legend describing each of the specific associations. This type of information could be used for zoning purposes, county management, or other governmental activities. Aerial photos are provided on sheets showing the location of each individual soil in the county. Comprising about half of the soil survey report, this is one of the most useful sections.
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Southgate, Emily W. B. Russell. "Field Studies: Bringing Historical Records Down to Earth." In People and the Land through Time, 34–47. Yale University Press, 2019. http://dx.doi.org/10.12987/yale/9780300225808.003.0003.

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There are many field techniques that take research beyond what can be found in written documents. Clues to the past are hidden in such subtle (and not so subtle) features as topographic modifications, soils, and tree trunks. Field studies search for evidence of conditions and for their resultant effects through a variety of techniques. Features may be evident from a ground survey, located precisely through GPS. Remote imaging, using a variety of techniques from simple aerial photography to lidar, reveal hidden patterns, that may then be studied on the ground. Archeological study relates the patterns found on the ground to human activities, as they have changed over time. Dendroecology interprets records left in tree rings. Some studies look at stands of different ages to study change over time, and long-term studies trace change in individual stands. In these field studies that look at the past, soil characteristics and materials hidden in the soil, such as DNA, stable isotopes and charcoal, can reveal details of past processes and species. These methods are illustrated with examples from a wide range of biomes.
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Aber, James S., Irene Marzolff, and Johannes B. Ries. "Soil Mapping and Soil Degradation." In Small-Format Aerial Photography, 229–31. Elsevier, 2010. http://dx.doi.org/10.1016/b978-0-444-53260-2.10017-1.

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"7. Aerial Photography." In Remote Sensing in Soil Science, 155–80. Elsevier, 1987. http://dx.doi.org/10.1016/s0166-2481(08)70033-3.

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Aber, James S., Irene Marzolff, Johannes B. Ries, and Susan E. W. Aber. "Vegetation, Soil, and Soil Erosion." In Small-Format Aerial Photography and UAS Imagery, 291–305. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-812942-5.00016-1.

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Kaimaris, Dimitris, Petros Patias, and Olga Georgoula. "Google Earth Revisited." In Applying Innovative Technologies in Heritage Science, 41–55. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2871-6.ch003.

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The interpretation of photos and the processing of Google Earth imagery that allowed the “random” discovery as a result of a non-systematical research of numerous marks of buried constructions in the wide area of the city of Larisa (Thessaly, Greece) is presented in this chapter. Additional data as aerial photographs over time, satellite images and the digital terrain model of the same area has been used. From the numerous marks, this chapter mainly focuses on three positions where the positive marks (soil marks or/and crop marks), circular or/and linear, reveal on a satisfying level covered construction of great dimensions. The ongoing research activity of the research team along with this research highlights the advantages of using Google Earth imagery in an attempt to “random” mark of unknown covered constructions, or, in the frame of a systematic survey of aerial and remote sensing archaeology, as additional and not exclusive source of information.
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Gajić, Tatjana. "5 Soil, Water, and Light: Aerial Photography and Agriculture in Spain." In A Companion to Spanish Environmental Cultural Studies, 68–76. Boydell and Brewer, 2023. http://dx.doi.org/10.1515/9781800108677-010.

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Hauser, Kitty. "Revenants in the Landscape: The Discoveries of Aerial Photography." In Shadow Sites. Oxford University Press, 2007. http://dx.doi.org/10.1093/oso/9780199206322.003.0009.

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In 1937 John Piper’s article ‘Prehistory from the Air’ was published in the final volume of the modernist art journal Axis. In it, Piper compares the landscapes of southern England, seen from above, with the modernist works of Miró and Picasso (Fig. 4.1). His interest in the aerial view is not, however, confined to its Formalist-aesthetic aspect; Piper also points out how flying and aerial photography have accelerated archaeological theory and practice. Aerial photographs, he writes, ‘have elucidated known sites of earthworks and have shown the sites of many that were previously unknown’. They are also, he continues, ‘among the most beautiful photographs ever taken’. The aerial view, it seems, could be both investigative and aesthetic. The use of aerial photography by archaeologists, known as ‘aerial archaeology’, began in earnest in Britain in the decade in which Piper was writing, although its possibilities were beginning to be suspected in the 1920s, after the use of aerial photography for reconnaissance purposes in the First World War. In the interwar period it was British archaeologists who pioneered the new methods of aerial archaeology. In his book on aerial archaeology, Leo Deuel notes that until the 1950s ‘no other European country had made any comparable effort to tap the almost limitless store of information consecutive cultures had imprinted on its soil’. As many commentators pointed out, the British landscape offered plenty of such ‘information’: the series of invasions, settlements, clearances, and developments that constitute British history have made the landscape a veritable palimpsest, the layers of which can potentially be revealed in an aerial view. Archaeologists became expert in deciphering aerial views of this palimpsest, as we shall see. But such views of Britain exercised an appeal beyond archaeological circles. Aerial photography showed Britain as it had never before been seen; it revealed aspects of the landscape hitherto unknown, or at least never before visualized in such concrete form. The aerial view ‘made strange’ long-familiar features: hills seemed to disappear, towns and cities might appear tiny, rivers and roads ran through the two-dimensional scene like veins.
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Conference papers on the topic "Aerial photography in soil surveys"

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Costa, Cesar Augusto, Walter Schultz Neto, and Thiago Wichrestink Zozula. "Retroerosion in a TBG Gas Pipeline Crossing and its Rehabilitation." In ASME-ARPEL 2019 International Pipeline Geotechnical Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/ipg2019-5301.

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Abstract This Paper presents a case study of the Jardim Novo Maracanã stream situated in Campinas, São Paulo, in which recent streambed modifications were characterized, aiming to define the rates and the potential erosions along the channel alignment of which have Bolivia-Brazil Gas Pipeline crossing. Its presents the erosion process analysis and mitigation concepts aimed at the pipeline and fiber optic cables facilities integrity, as well as to indicate the design issues, considering the streambed deepening in this watershed. For this, satellite images and aerial photographs were collected in different periods, soil and subsoil surveys were performed, information on rainfall and watershed characteristics was analyzed, as well as hydrological and hydrotechnical studies were developed. These studies included geotechnical channel and banks analyzes, the spatial and temporal trends of the fluvial geomorphology evolution and the infrastructures safety conditions analysis. It was concluded that a new channel erosion process occurred after the streambed was filled by recent sediments. This process is associated with an increase floods magnitude, the slopes occupation intensification with the county urbanization and the streambed conditions changes, from an alignment sinuous to rectilinear and from a shallow to deeper channel. Once initiated, the channel erosion process maintained its retroerosion, i.e. its “headcutting” trend, deepening its equilibrium profile to its stratigraphic base level, located about 5.0 m below the 2014 stream bottom, in the pipeline cross section. Alternative concepts for the infrastructure integrity rehabilitation in these new morphological-fluvial conditions were also developed and dimensioned. Among these, the rectangular culverts alternative was adopted. They support a landfill at the crossing with the buried pipe and have to 100-year return period peak flows capacity.
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B K Gelder and R P Anex. "Estimating Soil Organic Matter Using Aerial Imagery and Soil Surveys." In 2009 Reno, Nevada, June 21 - June 24, 2009. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2009. http://dx.doi.org/10.13031/2013.27306.

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Obmelyuhin, A. A. "USING THE LATEST TERRAIN EXPLORATION METHODS IN EXPLORATION GEOLOGY." In Проблемы минералогии, петрографии и металлогении. Научные чтения памяти П. Н. Чирвинского. Perm State University, 2023. http://dx.doi.org/10.17072/chirvinsky.2023.192.

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The object of the study is the latest methods of reconnaissance, in particular the use of UAVs (Unmanned Aerial Vehicle) in the Khabarovsk Territory for geochemical surveys. The work methodology included: large-scale aerial photography using UAVs, interpretation and comparison of the obtained photo and video materials with available maps and data. Based on the study, conclusions were drawn about the rationality of using UAV reconnaissance in geology.
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Roath, Hilary, and Michelle Manzano. "A COMPARISON OF SOIL QUALITY TO VEGETATION HEALTH IN THE COPPER BASIN MINING REGION UTILIZING SMALL-FORMAT AERIAL PHOTOGRAPHY." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-286702.

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Nachabe, Mahmood, Laj Ahuja, Mary Lou Shaffer, J. Ascough, Brian Flynn, and J. Cipra. "Precision agriculture in dry land: spatial variability of crop yield and roles of soil surveys, aerial photos, and digital elevation models." In Remote Sensing, edited by Edwin T. Engman. SPIE, 1998. http://dx.doi.org/10.1117/12.332780.

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Grigoriev, Gleb, Vladimir Gulin, Alexei Nikitin, Nikita Sivoy, Eugene Bondarev, Marat Islamuratov, Oksana Zakharova, Igor Karpov, Evgenii Liubimov, and Vladislav Votsalevskiy. "Integrated Droneborne Geophysics Application as a Tool for Exploration Optimization. Case Studies." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206250-ms.

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Abstract Unmanned aerial vehicles (UAV) have a great potential for geological exploration optimization at all stages. This study considers UAV implementation at different exploration stage. Integrated approach using unmanned aerial systems shows great effectiveness based on the completed surveys. Low-depth electrical exploration using the shallow electrical exploration method is one of the possible UAVs technologies with great potential. In this study there are several cases describing main field data acquisition, models and cross-sections processing. Unmanned aerial systems are applicable at all stages of the oil and gas value chain and are already an integral part of oil&gas production process. Now there are more than 70 unmanned aerial systems application scenarios. The main advantages of drones are that the use of this operational data collection tool allows: – to reduce the duration of collecting geospatial data by 70%, and the cost by 3 times; – make the best decisions quickly; – to realize additional potential for increasing efficiency (application at all stages of the production chain) – increase the production processes safety level The most promising and actively developing areas of technology application are: Geophysical surveys at different stages of geological exploration. Drones have great potential for application in non-seismic exploration methods in the early stages of geological exploration. In addition, UAV surveys are suitable for planning geological exploration and working out the conceptual arrangement of the terrain. The presence of an accurate digital elevation model at the start of work of the project team makes it possible to remove a number of uncertainties and questions about conducting field work on seismic exploration, the placement of infrastructure and corridor communications. Objective control of the capital construction progress. Another important area of drones application is aerial photography at all stages of capital construction. With the help of UAVs, it is possible to control such parameters as the status and quality of construction and installation works, equipment of contractors, compliance with safety and environmental standards, and others. To do this, the unmanned vehicle flies around the object with a given regularity, filming it from different angles. After aerial photography, special software stitches the results into photogrammetric products (digital terrain model, orthophotomaps, 3D models) with an accuracy of 4–6 centimeters. On the constructed models, you can calculate the dynamics by one or another parameter. Operational fieldwork and intrastructure monitoring. At the same time, one of the key goals of technology application is the creation of a network of autonomous stations with drones at all assets for remote control of the company's production processes. The first step in this direction was the joint pilot testing of an automated take-off and landing station with an unmanned aerial vehicle of a multi-rotor type. The use of the station will reduce the time and cost of collecting data on capital construction and infrastructure. Project teams will be able to react faster to changes. An automated take-off and landing station allows the use of unmanned aerial vehicles without human intervention. The drone can independently take off, perform the necessary operations, land and recharge. Thus, flight operations and data collection can be performed remotely without the constant presence of a specialist on site.
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Beckstead, Gary R. E., and Drum S. Cavers. "Stream Dynamics at Pipeline River Crossings." In 1996 1st International Pipeline Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/ipc1996-1943.

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Pipeline crossings of streams, whether large or small, must consider the ability of the stream channel to scour its bed and erode its banks. Case studies are presented to illustrate the kinds of dynamic environments which must be considered in designing pipeline stream crossings. These characteristics may be determined through the use of comparative historical aerial photography and site photographs and surveys. The case studies presented as examples in this paper include gullies, bedrock-lined channels, entrenched meandering streams, multi-channel wandering streams, degrading channels, alluvial fans, and major channels affected by regulation and man-made structures. Natural hazards such as debris jams and beaver dams are also discussed. For each case study, the characteristics of the channels are described, the design approach discussed and site-specific constraints presented which affected the final design.
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Brydie, J. R., S. Trottier, A. Jafari, Tania Rizwan, and Marzie Derakhshesh. "Laboratory and Numerical Simulations of Pipeline Leakage Behaviour: Volatile Organic Compound (VOC) Migration Through Porous Media and Subsequent Atmospheric Dispersion." In 2014 10th International Pipeline Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/ipc2014-33652.

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The transport of diluent (i.e. condensate blend) and/or diluted bitumen (i.e. dilbit) using buried pipelines is common practice. Aerial surveys are conducted on a regular basis as a part of the leak detection strategy at Enbridge Pipelines. During these surveys, the pilot flies over the right-of-way to visually inspect the pipeline for leakage along the pipeline corridor. Beyond visual inspection, the detection of proximal indicators of leakage by using remote sensors mounted on the aircraft is proposed in order to further enhance visual aerial leak detection methods. These sensors are designed to detect volatile organic compounds (VOCs) which are expected to evolve, even from small liquid leaks within the shallow subsurface and subsequently reach the atmosphere. If these VOCs can be detected in the local atmosphere in the vicinity of a leak during aerial surveys, then small liquid leaks may be more easily identified, characterized and remediated. This study is aimed to characterize and model VOC movement through soil to quantify the amount of VOC concentration expected to diffuse into the atmosphere within the vicinity of leakage. The experimental study consisted of the characterization of three organic fluids, and one type of soil material representative of that used in pipeline construction. Two types of dilbit with different viscosities, as well as a typical diluent (i.e. condensate), were used because these types of organic fluids are commonly transported using pipelines. Batch laboratory tests were conducted using glass screw top vessels in order to determine the concentration and organic species evolving from these fluids. Headspace VOC and other gas species were characterized after 24 hours following the addition of the fluid to the sealed vessel. Custom designed laboratory-based columns were constructed, based upon scaled down field dimensions, and were used to simulate fluid leakage. Fluid was injected at the base of each column, over which porous media was suspended. Each test characterized the migration of VOCs through the porous medium, VOC breakthrough at the surface and data allowed the calculation of VOC flux into the overlying headspace. Columns were operated under closed and flow through modes. Data obtained from the laboratory experiments defined bounding parameters for numerical simulations comprising of decoupled subsurface and atmospheric models. Subsurface modelling of the experimentally simulated leakage event was refined and validated using experimental data and a larger scale field leak scenario was modeled. Data from the laboratory testing and subsurface numerical simulations was used to construct atmospheric dispersion models of a potential field leak simulation. All atmospheric dispersion modelling used a Gaussian Dispersion Model within the Polair Software package (Odotech Inc.).
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Moya, John Malpartida, and Giancarlo Massucco De la Sota. "Alternative Geohazard Risk Assessment and Monitoring for Pipelines With Limited Access: Amazon Jungle Example." In 2014 10th International Pipeline Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/ipc2014-33628.

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The Pipeline Integrity Management System (PIMS) of Transportadora de Gas del Peru (TgP) has identified the Weather and Outside Forces such as main threat which increases the risk of the integrity of its pipelines in jungle and mountains areas. In pipelines with particular characteristics such as pipeline which crosses the Andes and the Amazonian jungle, this threat can cause even a greater number of failures than other threats such as Corrosion or Third Party Damage (TPD). Given this situation, the TgP’s PIMS has made a significant development in the use and management of the information provided by different techniques of inspections and monitoring of the pipeline and ROW. Due to the particular conditions of our pipeline system, where the weather and security issues are important restrictions in some locations, makes it impossible to access the right of way in order to get accurate and precise information. Some monitoring depends on people going to the field to collect data (geotechnical surveys, rain monitoring, strain gage measures, inclinometers, etc.). This information is essential to perform the risk analysis in the scope of the PIMS. This paper shows different alternative techniques of monitoring which allow us to estimate the exposure of the pipelines to Geohazards. Among these techniques we have: topographic surveys with laser-detection LIDAR, monitoring of stress and displacement of the soil by fiber optics, UAV’s (Unmanned Aerial Vehicle) surveys, acoustic leak detection, Inertial Navigation Tools (in line inspection), etc. It is also important to mention the alternative assessment methodologies in order to determine the pipeline exposure, resistance and mitigation to this threat using geological information and exhaustive desk analysis. It is important to get the more accurate information of the actual state of the pipeline system in order to eliminate most of the “default” values during the risk assessment. By integrating these inspections, monitoring and particular assessments as part of PIMS, we have been able get accurate risk assessments in order to mitigate and/or minimize the occurrence of failures. In this way we are able to optimize efforts to preserve the integrity of our system and in addition minimize personal, environmental and business impact.
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KARLOVSKA, Amanda, Inga GRĪNFELDE, Ina ALSIŅA, Gints PRIEDĪTIS, and Daina ROZE. "PLANT REFLECTED SPECTRA DEPENDING ON BIOLOGICAL CHARACTERISTICS AND GROWTH CONDITIONS." In Rural Development 2015. Aleksandras Stulginskis University, 2015. http://dx.doi.org/10.15544/rd.2015.045.

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Sustainable and economically based forestry needs modern inventory and monitoring techniques. One of the most common technologies for identification of forest tree species and monitoring of forest growth conditions is the hyperspectral remote sensing. This technology gives an opportunity to economize human resources and time for data collecting and processing. The spectral behaviour of plant leaves depends on number of factors, including environmental background. The aim of this study was to assess the tree reflectance spectra in relation to the growth conditions to take into account potential differences for increasing precision of species identification in Latvian forests and for estimating of forest growth conditions. Remote sensing data were obtained using a specialized aircraft (Pilatus PC-6), which is equipped with a high-performance airborne VNIR pushbroom hyperspectral system (AisaEAGLE). The study area was flown at 1000 m altitude. Data was recorded in the 400–970 nm spectral range, spectral resolution was 3.3 nm, ground resolution 0.5 m. Data processing consisted of manually selecting trees with a recognizable tree crowns in the airborne images. Tree centres were adjusted by putting them in the accurate position according to the situation in aerial photography. All trees with a diameter at breast height DBH of more than 5 cm were measured and for each tree coordinates, its species, height, DBH, crown width and length were recorded. Differentially corrected Global Positioning System measurements were used to determine the position of each plot centre. Data from different hyperspectral bands were compared using ANOVA at confidence level 95 %. Four species: Scots pine (Pinus sylvestris L.), Norway spruce (Picea abies (L.) H. Karst), silver birch (Betula pendula Roth), and European aspen (Populus tremula L.) – were examined in distinct forest site types. The spectral response of studied species was 1) different between species and 2) different between site types within each species, correlating with soil fertility gradient and soil moisture gradient. Differences between species occurred most in the intensity of reflected electromagnetic radiation rather than distinctive locations of maximums or minimums in spectrum curve, and near infrared (NIR) region of spectrum showed more differences between species than visible light zone. Most informative wavebands for distinguishing differences between site types were 805 nm and 644 nm.
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Reports on the topic "Aerial photography in soil surveys"

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Kleber, Emily J., Greg M. McDonald, W. Adolph Yonkee, and Elizabegth Balgord Balgord. Interim Geologic Map of the Plain City Southwest 7.5' Quadrangle, Weber and Box Elder Counties, Utah. Utah Geological Survey, July 2024. http://dx.doi.org/10.34191/ofr-765.

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The Plain City Southwest (SW) and Ogden Bay 7.5′ quadrangles are in Weber, Box Elder, and Davis Counties. The quadrangles include parts of the communities of Hooper, Warren, and Reese, the Harold Crane Waterfowl Management Area, several waterfowl wetlands, as well as the southwestern corner of Willard Bay Reservoir. The North Fork and South Fork of the Weber River f low south into the Ogden Bay Wildlife Management Area at the edge of Great Salt Lake. The northwestern part of the Ogden Bay quadrangle and the southwestern part of the Plain City SW quadrangle contain most of Little Mountain, a small bedrock mountain with about 500 feet of relief. The western side of Little Mountain as well as the northern part of the Plain City SW quadrangle are part of Willard Bay of Great Salt Lake. Small meandering channels flow into the bays from local drainages. Numerous evaporation ponds related to industrial minerals production cover the central western and northwestern part of the Plain City SW quadrangle, obscuring geologic deposits. This mapping project will provide the basis for identifying and delimiting potential geologic hazards in future Utah Geological Survey (UGS) geologic hazard maps, part of the UGS Geologic Hazards Mapping Initiative (Castleton and McKean, 2012). Mapping for the project was done on stereographic pairs of aerial photographs from the following sources: black-and-white aerial photographs from the U.S. Department of Agriculture (USDA) Agricultural Stabilization and Conservation Service (1958, 1965, 1971a, 1971b). Mosaics of some USDA photographs were accessed using the Weber County web services (USDA Agricultural Stabilization and Conservation Service, 1937, 1962, 1980, 1985). Additional aerial photography sets from the National Agricultural Imaging Program (NAIP) were used (Utah Geospatial Resource Center [UGRC], mid-1990s, 2006, 2009, 2011, 2016a, 2018a, 2021a) as well as high-resolution (15cm) Hexagon imagery (Utah Geospatial Resource Center, 2021b). Most Quaternary unit contacts, including human disturbed areas, were mapped using two lidar elevation datasets (Utah Geospatial Resource Center [UGRC], 2016b, 2018b). The geologic map was made by transferring the geology from the aerial photographs to a geographic information system (GIS) database using the programs ESRI ArcPro and Global Mapper v. 18 for a target scale of 1:24,000. Cross section A-A′ was created in Adobe Illustrator. Field-based investigations included shallow subsurface investigations in targeted areas with a soil auger. Materials from 1 to 3 meters were observed, documented, and sampled, which aided in preparing descriptions of most Quaternary units.
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Kleber, Emily J., Greg M. McDonald, W. Adolph Yonkee, and Elizabegth Balgord. Interim Geologic Map of the Ogden Bay 7.5' Quadrangle, Weber and Davis Counties, Utah. Utah Geological Survey, July 2024. http://dx.doi.org/10.34191/ofr-766.

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The Plain City Southwest (SW) and Ogden Bay 7.5′ quadrangles are in Weber, Box Elder, and Davis Counties. The quadrangles include parts of the communities of Hooper, Warren, and Reese, the Harold Crane Waterfowl Management Area, several waterfowl wetlands, as well as the southwestern corner of Willard Bay Reservoir. The North Fork and South Fork of the Weber River f low south into the Ogden Bay Wildlife Management Area at the edge of Great Salt Lake. The northwestern part of the Ogden Bay quadrangle and the southwestern part of the Plain City SW quadrangle contain most of Little Mountain, a small bedrock mountain with about 500 feet of relief. The western side of Little Mountain as well as the northern part of the Plain City SW quadrangle are part of Willard Bay of Great Salt Lake. Small meandering channels flow into the bays from local drainages. Numerous evaporation ponds related to industrial minerals production cover the central western and northwestern part of the Plain City SW quadrangle, obscuring geologic deposits. This mapping project will provide the basis for identifying and delimiting potential geologic hazards in future Utah Geological Survey (UGS) geologic hazard maps, part of the UGS Geologic Hazards Mapping Initiative (Castleton and McKean, 2012). Mapping for the project was done on stereographic pairs of aerial photographs from the following sources: black-and-white aerial photographs from the U.S. Department of Agriculture (USDA) Agricultural Stabilization and Conservation Service (1958, 1965, 1971a, 1971b). Mosaics of some USDA photographs were accessed using the Weber County web services (USDA Agricultural Stabilization and Conservation Service, 1937, 1962, 1980, 1985). Additional aerial photography sets from the National Agricultural Imaging Program (NAIP) were used (Utah Geospatial Resource Center [UGRC], mid-1990s, 2006, 2009, 2011, 2016a, 2018a, 2021a) as well as high-resolution (15cm) Hexagon imagery (Utah Geospatial Resource Center, 2021b). Most Quaternary unit contacts, including human disturbed areas, were mapped using two lidar elevation datasets (Utah Geospatial Resource Center [UGRC], 2016b, 2018b). The geologic map was made by transferring the geology from the aerial photographs to a geographic information system (GIS) database using the programs ESRI ArcPro and Global Mapper v. 18 for a target scale of 1:24,000. Cross section A-A′ was created in Adobe Illustrator. Field-based investigations included shallow subsurface investigations in targeted areas with a soil auger. Materials from 1 to 3 meters were observed, documented, and sampled, which aided in preparing descriptions of most Quaternary units.
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Kopp, Gregory A., David Sills, Emilio S. Hong, and Joanne Kennell. Northern Tornadoes Project. Northern Tornadoes Flyover Project: Summary Technical Report of the Year 1 Pilot Study. Western Libraries, Western University, January 2018. http://dx.doi.org/10.5206/ntpr181.

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12 January 2018 The objectives of the Year 1 Pilot Study were to (i) develop a methodology for determining tornado occurrence in Northern Ontario, and (ii) obtain research quality data for at least one event. Because of the isolation of many regions, the approach assumed the use of radar data analysis combined with aerial surveys. These objectives were achieved. Aerial surveys were conducted for a total of seven events in Ontario and southern Quebec and 15 confirmed or probable tornadoes identified. Archival geo-tagged imagery was obtained for six of these events. Ten confirmed or probable tornadoes were identified in Ontario, five of which were not in the OSPC database. In addition, 5 tornadoes were confirmed in Quebec. For the 2017 season, the OSPC had a list of 10 verified tornadoes, as of December 21, 2017. The pilot project raises this number to 15. In total, 4 EF2 tornadoes and 1 EF3 tornado were identified via aerial photography. The remainder were EF1 or EF0. UPDATE – 23 April 2018 Based on the analysis of newly available Planet.com high-resolution satellite imagery and related tools, several events were reassessed and a number of additional tornadoes were discovered. Overall, an additional three tornadoes were added to 2017 count. The updated events are listed in a revised 2017 summary table appended at the end of this document.
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