Gotowe bibliografie tematyczne / Erosion mapping

Gotowa bibliografia na temat „Erosion mapping”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 19 lutego 2022

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Artykuły w czasopismach na temat "Erosion mapping"

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Tarley Ferreira Nascimento, Diego, Patrícia De Araújo Romão i Maurício Martines Sales. "Erosividade e erodibilidade ao longo de dutovia cortando os estados de Minas Gerais e Goiás - Brasil". Ateliê Geográfico 12, nr 1 (3.08.2018): 97–117. http://dx.doi.org/10.5216/ag.v12i1.46152.

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Resumo Apresenta-se o mapeamento da erosividade e da erodibilidade ao longo da dutovia OSBRA, que corta vários municípios de Minas Gerais e Goiás. Para o mapeamento da erosividade, foram calculados os índices de erosividade de cada estação meteorológicas nas proximidades da área estudada. Para o mapeamento da erodibilidade, foram agrupadas categorias de solos com comportamentos semelhantes quanto à resistência a processos erosivos e posteriormente foi classificada sua suscetibilidade erosiva. Com base nos mapeamentos da erosividade e da erodibilidade foi possível identificar áreas com maior suscetibilidade a processos erosivos. Levantamento de 85 pontos de erosão, cadastrados em campo, foram confrontados com os mapas de erodibilidade e erosividade, resultando em uma grande coerência entre previsão e ocorrências em campo. O mapeamento apresentado poderá ser usado como critério de decisão sobre qual área deve ter maior monitoramento do que outras, visando a segurança da faixa do duto e de fazendas vizinhas. Palavras-Chave: Erosividade; Erodibilidade; Processos Erosivos Abstract This paper presents the erosivity and erodibility mapping along the pipeline OSBRA, which cut the states of Minas Gerais and Goiás. For mapping the erosivity, the erosivity indices were calculated to each weather station near the studied area. To map the erodibility, soils were grouped in classes considering similar resistance to erosion processes, and their erosive susceptibility were subsequently classified. Based on the erosivity and erodibility mappings, areas with greater susceptibility to erosion processes were identified. A collection of 85 points of erosions, registered on the field, were compared with the maps of erodibility and erosivity and resulted in a good agreement between predictions and events in the field. The presented mapping can be used as a decision criterion on which area should have a more intensive monitoring than others, seeking the safety of the pipeline and neighboring farms. Keywords: Erosivity; Erodibility; Erosion processes Resumen Se presenta el mapeo de la erosividad y de la erodibilidad a lo largo de la tubería OSBRA, que corta varios municipios de Minas Gerais y de Goiás. Para mapear la erosividad se calcularon los índices de erosividad de cada estación meteorológica, en las proximidades del área observada. Para mapear la erodibilidad se agruparon categorías de suelos similares, en cuanto a su resistencia a los procesos erosivos. Posteriormente, se clasificó su susceptibilidad erosiva. Considerando los mapeos de erosividad y erodibilidad, se identificaron áreas más susceptibles que otras a los procesos erosivos. Observaciones levantadas a partir de 85 puntos de erosión registrados en campo, confrontadas con los mapas de erodibilidad y erosividad, mostraron coherencia entre la previsión y los datos de campo. El mapeo presentado puede utilizarse para definir cuáles son las áreas que requieren más control y vigilancia, teniendo en cuenta la seguridad de la zona a lo largo de las tuberías, así como la de las haciendas vecinas. Palabras Clave: Erosividad; Erodibilidad; Mecanismo de erosión
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Weikmann, Amanda M., Clayton Hodges i Randel Dymond. "Urban Erosion Potential Risk Mapping with GIS". Environment and Natural Resources Research 10, nr 1 (15.01.2020): 28. http://dx.doi.org/10.5539/enrr.v10n1p28.

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With increased regulatory focus on eroded sediment and its bound pollutants, methods are needed to predict areas with high erosive potential (EP) in urbanized areas. Using EP to prioritize urban areas for maintenance, implementation of Stormwater Control Measures (SCMs), stream restoration or monitoring is crucial. This study utilizes commonly available geospatial layers in conjunction with a computational procedure for prioritizing the contribution of site specific- and transport-erosion to compute relative EP risk throughout a target urban watershed.  Factors that contribute to erosion were evaluated: local cell slope, soil erodibility, land cover, runoff volume, distance and slope to nearest stormwater conveyance point along a surface flow travel path. A case study of the developed methodology was performed on a 1.6 square kilometer urban watershed in Blacksburg, VA, to generate EP risk maps. Results of the study indicate areas of erosive potential within the target watershed and provide a methodology for creating erosion potential risk maps for use by MS4 planners, engineers and other individuals that manage erosion control programs.
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Oliveira, José Guilherme de, Alexei Nowatzki i Leonardo José Cordeiro Santos. "UTILIZAÇÃO DE ATRIBUTOS TOPOGRÁFICOS NO MAPEAMENTO DE SUSCETIBILIDADE EROSIVA NA ÁREA RURAL DO MUNICÍPIO DE PARANAVAÍ – PR". Revista Cerrados 15, nr 02 (16.03.2020): 201–19. http://dx.doi.org/10.22238/rc24482692v15n22017p201a219.

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A região noroeste do estado do Paraná ao longo dos últimos 50 anos vem sofrendo diversos impactos decorrentes de processos erosivos lineares, ravinas e voçorocas principalmente. A ocorrência desses processos está associada a dois fatores: o histórico de ocupação da região, bem como as características pedológicas locais, principalmente a textura dos solos e sua distribuição nas vertentes. O método adotado para o mapeamento de suscetibilidade é uma adaptação do proposto por Crepani et al. (2001). Esse autor define que a suscetibilidade de uma área é definida pela soma das vulnerabilidades dos componentes do meio físico. Para a realização do trabalho foram selecionados os atributos topográficos declividade e perfil de curvatura; na pedologia, as tipologias de solo. Os resultados foram discretizados em 5 classes: Muito baixa, baixa, média, alta e muito alta suscetibilidade. As áreas de suscetibilidade a erosão Alta e Muito alta, representam 24% do município, sendo que nessas porções se concentram 26% das erosões, o tipo de solo em conjunto com as características topográficas fazem essa área mais propicia naturalmente a ocorrência dos processos erosivos. A classe de moderada suscetibilidade a erosão representam cerca de 40% do município e 54% das feições erosivas se concentra nessa unidade. Palavras-chave: Erosão; Modelo Digital de Terreno; Álgebra de Mapas. USE OF TOPOGRAPHIC ATTRIBUTES IN THE EROSIVE SUSCEPTIBILITY MAPPING IN THE RURAL AREA OF THE MUNICIPALITY OF PARANAVAÍ – PR Abstract The northwest region of the state of Paraná over the last 50 years has suffered several impacts and consequences of linear erosives, ravines and gullies mainly. The occurrence of these processes is mainly associated with two factors: the occupation history of the region, as well as local soil characteristics, mainly the soil texture and a distribution of soils along the slopes. The methodology adopted for the mapping of susceptibility to erosion follows a line of thought developed by Crepani et al. (2001). This proposal defines that the vulnerability of an area is defined by the sum of the vulnerabilities of the components of the physical environment. For the accomplishment of the methodology were selected, to represent the geomorphology, the topographic attributes: slope, curvature plane and profile; for pedology, soil typologies were selected. The results were discretized in 5 classes, from environments less susceptible to the most susceptible. The areas of susceptibility to erosion High and Very high, summed represent 24% of the municipality, being that in these portions it concentrates 26% of the area of the erosions, once in these areas the type of soil together with the topographic characteristics make it more propitious to the occurrence of linear erosive processes.The moderate susceptibility to erosion class represent about 40% of the municipality and 54% of the area of ​​erosive features is concentrated in this unit. Keywords: Erosions; Digital Terrain Model; Map Algebra. UTILIZACIÓN DE ATRIBUTOS TOPOGRÁFICOS EN EL MAPEO DE SUSCEPTIBILIDAD EROSIVA EN EL ÁREA RURAL DEL MUNICIPIO DE PARANAVAÍ – PR Resumen La región noroeste del estado de Paraná en los últimos 50 años viene sufriendo impactos producto de procesos erosivos lineales, regueros y cárcavas principalmente. La ocurrencia de estos procesos está asociada a dos factores: el modo de ocupación de la región y las características pedológicas locales, principalmente la textura de los suelos y su distribución en las vertientes. El método adoptado para el mapeo de susceptibilidad es una adaptación del propuesto por Crepani et al. (2001). Este autor especifica que la susceptibilidad de un área está definida por la suma de las vulnerabilidades de los componentes del medio físico. Para realizar este trabajo fueron seleccionados los atributos topográficos declividad y perfil de curvatura; en la pedología, las tipologías de suelo. Los resultados fueron representados en 5 clases: muy baja, baja, media, alta y muy alta susceptibilidad. Las áreas de susceptibilidad a erosión alta y muy alta, representan el 24% del municipio, sumado a ello en esas porciones se concentran el 26% de las erosiones, por lo tanto el tipo de suelo en conjunto con las características topográficas hacen de esas áreas las más propicias naturalmente a la ocurrencia de procesos erosivos. La clase de moderada susceptibilidad a erosión representa cerca del 40% del municipio y el 54% de los rasgos erosivos se concentran en esa unidad. Palabras claves: Erosión; Modelo Digital del Terreno; Álgebra del Mapas.
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Yang, Xihua, i Bofu Yu. "Modelling and mapping rainfall erosivity in New South Wales, Australia". Soil Research 53, nr 2 (2015): 178. http://dx.doi.org/10.1071/sr14188.

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Considerable seasonal and inter-annual changes exist in rainfall amount and intensity in New South Wales (NSW), Australia. These changes are expected to have significant effect on rainfall erosivity and soil erosion by water, but the magnitude of the impact is not well quantified because of the non-linear and dynamic nature of the relationship between rainfall amount and rainfall erosivity. The primary aim of this study was to model spatial and temporal variations in rainfall erosivity and impacts on hillslope erosion across NSW. We developed a daily rainfall erosivity model for NSW to calculate monthly and annual rainfall erosivity values by using gridded daily rainfall data for a continuous 53-year period including a baseline period (1961–90) and a recent period (2000–12). Model parameters were improved based on their geographic locations and elevations to be truly geo-referenced and representative of the regional relationships. Monthly and annual hillslope erosion risk for the same periods was estimated with the Revised Universal Soil Loss Equation. We produced finer scale (100-m) maps of rainfall erosivity and hillslope erosion through spatial interpolation techniques, and implemented the calculation of rainfall erosivity and hillslope erosion in a geographic information system by using automated scripts so that it is fast, repeatable and portable. The modelled rainfall erosivity values were compared with pluviograph calculations and previous studies, and the Nash–Sutcliffe coefficient of efficiency is >0.90. Outcomes from this study provide not only baseline information but also continuous estimates of rainfall erosivity and hillslope erosions allowing better monitoring and mitigation of hillslope erosion risk in NSW.
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Karydas, Christos, Ouiza Bouarour i Pandi Zdruli. "Mapping Spatio-Temporal Soil Erosion Patterns in the Candelaro River Basin, Italy, Using the G2 Model with Sentinel2 Imagery". Geosciences 10, nr 3 (27.02.2020): 89. http://dx.doi.org/10.3390/geosciences10030089.

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This study aims at mapping soil erosion caused by water in the Candelaro river basin, Apulia region, Italy, using the G2 erosion model. The G2 model can provide erosion maps and statistical figures at month-time intervals, by applying non data-demanding alternatives for the estimation of all the erosion factors. In the current research, G2 is taking a step further with the introduction of Sentinel2 satellite images for mapping vegetation retention factor on a fine scale; Sentinel2 is a ready-to-use, image product of high quality, freely available by the European Space Agency. Although only three recent cloud-free Sentinel2 images covering Candelaro were found in the archive, new solutions were elaborated to overcome time-gaps. The study in Candelaro resulted in a mean annual erosion rate of 0.87 t ha−1 y−1, while the autumn months were indicated to be the most erosive ones, with average erosion rates reaching a maximum of 0.12 t ha−1 in September. The mixed agricultural-natural patterns revealed to be the riskiest surfaces for most months of the year, while arable land was the most extensive erosive land cover category. The erosion maps will allow competent authorities to support relevant mitigation measures. Furthermore, the study in Candelaro can play the role of a pilot study for the whole Apulia region, where erosion studies are rather limited.
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Savelieva, D. A., i V. K. Kalichkin. "Application of digital technologies in the study of water erosion of soils in Western Siberia". Siberian Herald of Agricultural Science 49, nr 4 (28.09.2019): 86–100. http://dx.doi.org/10.26898/0370-8799-2019-4-10.

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The analysis of the study of water erosion of soils on the territory of the West Siberian Plain using geo-information technologies (GIS) and Earth remote sensing was carried out. It is shown that GIS and Earth remote sensing are not widely used in erosion studies in Western Siberia and are used by a limited number of modern researchers. However, the use of digital technologies in this area is characterized by the coverage of almost the full range of their capabilities and functions: digital mapping, the formation of spatially-distributed thematic databases, monitoring, space-time analysis, modeling, automated mapping. The bulk of such research is concentrated mainly within the Novosibirsk and Omsk regions, in the Altai Territory, and to a lesser extent in the Tomsk and Kemerovo regions. Digital technologies for studying water erosion in Western Siberia are more often used to study the dependence of water erosion on its determining factors (mainly topography), the effect of water erosion on soils and soil cover, in morphometric analysis of the relief, land classifi cation and mapping. The problem of remote monitoring of the temporal dynamics of water erosion and related changes in topography, soil cover, soil properties, etc. is practically not dealt with. The issues of geoinformational modeling of water erosion in terms of elaboration of detail and scale, and coverage of a larger number of areas require further development. When modeling water erosion, the nature of surface runoff is not always taken into account. The approach to the selection of criteria for the assessment of erosional land at different scales of their mapping is not entirely clear. It remains an open question to develop a methodology for the automated calculation of standards for permissible erosional losses of soil. In general, the use of Earth remote sensing and GIS facilities in the study of water erosion in the soils of Western Siberia is not systematic and comprehensive. This is confi rmed by the presence of a number of problems in the study of water erosion in the given area, which requires a digital approach to their solution.
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Smetanová, Anna, Anne Müller, Morteza Zargar, Mohamed A. Suleiman, Faraz Rabei Gholami i Maryam Mousavi. "Mesoscale Mapping of Sediment Source Hotspots for Dam Sediment Management in Data-Sparse Semi-Arid Catchments". Water 12, nr 2 (1.02.2020): 396. http://dx.doi.org/10.3390/w12020396.

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Land degradation and water availability in semi-arid regions are interdependent challenges for management that are influenced by climatic and anthropogenic changes. Erosion and high sediment loads in rivers cause reservoir siltation and decrease storage capacity, which pose risk on water security for citizens, agriculture, and industry. In regions where resources for management are limited, identifying spatial-temporal variability of sediment sources is crucial to decrease siltation. Despite widespread availability of rigorous methods, approaches simplifying spatial and temporal variability of erosion are often inappropriately applied to very data sparse semi-arid regions. In this work, we review existing approaches for mapping erosional hotspots, and provide an example of spatial-temporal mapping approach in two case study regions. The barriers limiting data availability and their effects on erosion mapping methods, their validation, and resulting prioritization of leverage management areas are discussed.
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VOLD, T., M. W. SONDHEIM i N. K. NAGPAL. "COMPUTER ASSISTED MAPPING OF SOIL EROSION POTENTIAL". Canadian Journal of Soil Science 65, nr 3 (1.08.1985): 411–18. http://dx.doi.org/10.4141/cjss85-045.

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Soil erosion potential maps and summary statistics can be produced from existing information with relative ease with the aid of computers. Soil maps are digitized and survey information is stored as attributes for each soil. Algorithms are then prepared which evaluate the appropriate data base attributes (e.g. texture, slope) for each interpretation. Forty surface soil erosion potential maps were produced for the Lower Fraser Valley which identify the most erosion-prone areas and indicate average potential soil losses to be expected under assumed conditions. The algorithm developed follows the universal soil loss equation. Differences across the landscape in the R, K, and S factors are taken into account whereas the L factor is considered as a constant equal to 1.0. Worst conditions of bare soil (no crop cover, i.e. C = 1.0) and no erosion control practices (i.e. P = 1.0) are assumed. The five surface soil erosion potential classes are determined by a weighted average annual soil loss value based both on the upper 20 cm of mineral soil and on the proportion of the various soils in the polygon. A unique polygon number shown on the erosion potential map provides a link to computer tables which give additional information for each individual soil within that polygon. Key words: Erosion, computer mapping, USLE
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Jakšík, O., R. Kodešová, A. Kapička, A. Klement, M. Fér i A. Nikodem. "Using magnetic susceptibility mapping for assessing soil degradation due to water erosion". Soil and Water Research 11, No. 2 (13.04.2016): 105–13. http://dx.doi.org/10.17221/233/2015-swr.

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CIHLAR, JOSEF. "A METHODOLOGY FOR MAPPING AND MONITORING CROPLAND SOIL EROSION". Canadian Journal of Soil Science 67, nr 3 (1.08.1987): 433–44. http://dx.doi.org/10.4141/cjss87-042.

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A methodology is described for mapping and monitoring the erosion of soil by water, using remote sensing techniques and the universal soil loss equation as the primary tools. Four aspects are covered: mapping baseline sheet and rill erosion, monitoring actual rill and gully erosion, estimating changes in potential sheet and rill erosion, and determining long-term trends. A successful field evaluation of the methodology was undertaken in a potato-growing area of New Brunswick. The implementation of the procedure using state-of-the-art microcomputer and satellite remote sensing technology is proposed. Key words: Soil erosion, remote sensing, geographic information systems
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Rozprawy doktorskie na temat "Erosion mapping"

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Weikmann, Amanda Maria. "Urban Erosion Potential Risk Mapping with GIS". Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/81879.

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Federal, state and local governments are increasingly focused on the effects of development on water quality and quantity. With waterbodies being especially sensitive to certain pollutants, such as sediment and nutrients, regulations have been put in place to control the amount of pollutant that gets discharged. Sediment is a cause for concern as it originates during both rural and urban activities, and often carries other pollutants (metals, nutrients, etc.) with it. Existing erosion models focus primarily on estimating erosion from agricultural watersheds. Methods are needed to predict areas with high erosive potential (EP) in urban watersheds. Highlighting highly erosive areas in urbanized watersheds allows for the prioritization of maintenance and installation of Stormwater Control Measures (SCMs), and monitoring of sediment by municipal planners and engineers. This study utilizes commonly available geospatial layers in conjunction with a computational procedure to compute relative EP risk throughout a target urban watershed. A case study of the developed methodology was performed on a watershed in Blacksburg, VA, to generate EP risk maps. Results of the study indicate areas of erosive potential within the target watershed and provide a methodology for creating erosion potential risk maps for use by municipal planners and engineers
Master of Science
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Wilson, Kenneth T. "Shoreface mapping and sand resource inventory North Topsail Beach and Surf City, North Carolina /". View electronic thesis (PDF), 2009. http://dl.uncw.edu/etd/2009-1/willsonk/kennethwillson.pdf.

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Abdulrahman, Ghaith H. "Erosion-corrosion mapping of carbon steel in oil/water slurries". Thesis, University of Strathclyde, 2011. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=16792.

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Chappell, Adrian. "Geostatistical mapping and ordination analyses of '1'3'7CS-derived net soil flux in south-west Niger". Thesis, University College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327548.

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Bloedel, Penny M. "Characterizing and mapping sediment erodibility of Tuttle Creek Lake in northeast Kansas". Kansas State University, 2016. http://hdl.handle.net/2097/32715.

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Master of Arts
Geography
Charles W. Martin
Tuttle Creek Dam was built in 1962 after near-record flooding in the Kansas River watershed. It has been in operation for over 50 years. In that time, nearly half of its storage capacity has been filled by sediment, reducing its ability to serve its intended purpose under current operations. The Corps of Engineers authorized a study to examine the sediment in Tuttle Creek Lake and determine management strategies to extend its lifespan. This report examines the erodibility of the sediment as a function of depth and distance to dam. Eight sediment cores were tested and analyzed for two erodibility parameters, critical shear stress and erodibility coefficient. After directly comparing these parameters it was determined that Tuttle Creek Lake sediment ranges from erodible to very erodible regardless of depth or location. Analyzing for locational and depth patterns in erodibility coefficients indicated that both influence the erodibility of sediment, with depth being the stronger factor. These results indicate that locations further upstream from the dam and greater depths are the least erodible. Sedimentation patterns were mapped onto a three dimensional model in ArcMap. It is hoped that this research will assist Corps of Engineers leadership in deciding which management practices to pursue for Tuttle Creek Lake.
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Pinheiro, Marcos Roberto. "Técnicas cartográficas e aerotogramétricas no estudo da erosão: alta bacia do Ribeirão Araguá - São Pedro e Charqueada / SP". Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/8/8135/tde-05022010-135011/.

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Este trabalho teve como objetivo fazer um inventário das feições erosivas lineares da alta bacia do ribeirão Araquá, municípios de São Pedro e Charqueada/SP, com base em técnicas cartográficas e aerofotogramétricas analógicas e digitais. O levantamento foi realizado em 2 escalas de abordagem diferentes: 1:50.000 (semi-detalhe) e 1:15.000 (detalhe). Na escala de semi-detalhe, produziu-se uma carta hipsométrica, uma carta clinográfica e um mapa morfológico, onde foram representadas as feições erosivas. Esses produtos, aliados com as informações sobre solos, litologia e o uso da terra, deram origem ao mapa morfopedológico da sub-bacia. Com base nesse mapa, foi definida a sub-bacia do Córrego do Querosene para o estudo em escala de detalhe. Na sub-bacia do Córrego do Querosene foram produzidas as cartas hipsométrica e clinográfica e os mapas de morfologia do relevo, solos, uso da terra e formas erosivas lineares. O levantamento do uso da terra e das formas erosivas lineares foi realizado com base em fotografias de 4 períodos diferentes, 1962 (1:25.000), 1978 (1:35.000), 1995 (1:25.000) e 2006 (1:30.000). Esse diagnóstico possibilitou realizar correlações das formas erosivas com as características do meio físico, o que deu origem a um mapa de suscetibilidade à erosão, além de ter permitido uma avaliação da evolução temporal das feições. Os resultados mostraram que a área atingida por sulcos diminuiu 38,18% no período de 1962 a 2009. Em contrapartida, as afetadas por linhas de pisoteio subiram 137%. No mesmo período, o número de ravinas aumentou em 87,5%, e as voçorocas cerca de 300%. Os dados mostraram também que as ravinas e voçorocas se instalaram preferencialmente em setores côncavos das vertentes, com declividades acima de 10%, principalmente, e em áreas como solos muito arenosos, profundos, homogêneos, permeáveis e cobertos por pastagens ou vegetação ciliar. As técnicas de interpretação e restituição aerofotogramétricas digitais se mostraram muito superiores às analógicas, embora o processo digital tenha se mostrado mais moroso que o analógico. As técnicas digitais permitiram a correção de grande parte das distorções geométricas das fotos, facilitando, dessa forma, as medidas das ravinas e voçorocas.
This study aimed to make an inventory of the forms of linear erosion in the high basin of the river Araquá, municipality of San Pedro and Charqueada / SP, based on cartographic and aerophotogrametric techniques in analog and digital environment. The survey was conducted in 2 different scales of approach: 1:50.000 (semi-detailed) and 1:15.000 (detailed). In the semi-detailed scale, it was produced a hypsometric chart, a slope chart and a morphological map, where the forms of linear erosion were represented. These products, with the informations about soils, lithology and land use, led to the morphopedologic map. Based on this map, was choose the sub-basin of the Querosene stream for the study on detailed scale. In the sub-basin of the Querosene stream were produced hypsometric and slope charts, morphologic, soils, land use and linear erosion maps. The survey of land use and linear erosion was based on photographs of 4 different periods, 1962 (1:25.000), 1978 (1:35.000), 1995 (1:25.000) and 2006 (1:30.000). This diagnosis made possible to create a susceptibility erosion chart and to correlate forms of linear erosion with the characteristics of the physical environment as well as assessments of the temporal evolution of the erosion. The results showed that the area affected by furrows decreased 38,18% from 1962 until 2009. In contrast, the areas with grazing tracks made by cows increased 137%. In the same period, the number of ravines increased 87,5% and gullies about 300%. The data also showed that the ravines and gullies are preferably in hollow forms, >10% slopes, mainly in areas of very sandy, deep, homogeneous and permeable soils, which are covered by grassland or ciliary vegetation. The techniques of digital aerophotogrametric interpretation and restitution showed far superior to analog, but the digital process is slowest than the analog. The digital techniques allowed the correction of most of the geometric distortions of the photos, facilitating, thus, the measures of ravines and gullies.
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Millward, Andrew A. "Mapping and modelling soil erosion potential in the Sierra de Manantlán Biosphere Reserve, México". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ35914.pdf.

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Mengler, Faron. "Gully erosion on rehabilitated bauxite mines". University of Western Australia. School of Earth and Geographical Sciences, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0176.

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[Truncated abstract] Landforms rehabilitated after bauxite mining can be vulnerable to soil loss by water erosion processes. On most rehabilitated sites, management controls such as deep ripping, contour mounding and landscaped sub-catchments limit erosion. Despite these measures, severe gully erosion that is anecdotally associated with steep slopes can damage rehabilitated areas and affect downstream drinking water resources. A review of erosion dynamics reveals that gullies develop episodically and in a non-linear manner. They often initiated as a near surface process and are influenced by natural climatic drivers. Despite this, local site characteristics including soil and landform can predispose an area to gully erosion. Moreover, erosion models, becoming more-widely utilized within the mining industry, may provide useful tools with which to measure, analyse, and manage gully erosion. One of these models, SIBERIA was tested to determine its suitability for application a tool to help manage erosion risk. We first surveyed 26 eroding and erosion-prone rehabilitated hillslopes to determine the common form and setting for gully erosion on these rehabilitated bauxite mines. A conceptual model was developed to include and explore the interplay between the common causes of the gullies surveyed. The conceptual model accounts for slope steepness but suggests that additionally, certain triggers and threshold effects operating under different site conditions are as influential (or even more influential) than slope steepness as determinants of gully erosion occurrence and severity. ... Soil properties and soil erodibility had some subtle influence on landform stability and erosion risk. The most-erodible media occurred where either: mine floor material was mixed with topsoil/ overburden; and/or the topsoil/overburden layer was thin or its coverage is patchy resulting in slaking subsoil, hardsetting soil and surface crusts. When erodible surface media were combined with steeper (>8[degrees]) or longer (>50 m) slopes or with any major erosion trigger, rill and gully development was greatly intensified. The SIBERIA simulation model was calibrated and its simulated outputs were compared to known locations of gully erosion on a steep, rehabilitated pit from the Willowdale mine. At a resolution of one metre, SIBERIA was able to simulate the approximate dimensions of gullies. However, SIBERIA could not simulate the exact location of individual gully headcuts. Additionally, SIBERA was able to simulate the effect of different microtopographic surface treatments but this was only achieved by increasing the grid resolution to 25 cm and reducing the size of the area simulated due to model constraints. Locations of gully headcuts were overlain onto a grid-based, Digital Elevation Model (DEM) using a Geographic Information System (GIS). The spatial distribution of gully headcut locations was compared to DEM derivatives such as slope and flow accumulation. Positive, and predictive relationships allow between the steepness of the slope of the pre-mining landform and the cell count of the area contributing to flow (catchment), as determined by GIS, may allow a mine scale indication of erosion risk using simple GIS desktop analysis.
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Brazier, Richard Edward. "An investigation into a GIS based approach for modelling hillslope soil erosion in England and Wales". Thesis, Lancaster University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369661.

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Goldsmith, Kevin. "Artificial intelligence techniques for soil erosion mapping and risk assessment in Almeria Province, Southeast Spain". Thesis, Kingston University, 2005. http://eprints.kingston.ac.uk/20367/.

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This thesis provides an alternative method to for mapping soil erosion. The method is conducted in a small study area of 40 km2 in the Sorbas Basin, Almería province, Southeast Spain. Soil erosion is one of the most destructive land degradation processes and can often lead to serious environmental problems. It is important to implement appropriate management strategies to meet these challenges at a range of scales. However, prior knowledge of erosion processes and the extent to which they operate spatially is often limited and, traditional methods of soil erosion mapping are often time and labour intensive. This thesis explores the use of two Artificial Intelligence (AI) techniques for soil erosion mapping; Artificial Neural Networks (ANNs) and Decision Tree Classifiers (DTCs). The opportunities for employing such methods relate in part to their non-linear capabilities, their ability to learn in an inductive manner and incorporate multi¬source data sets. AI training and test data were collected from 520 individually sampled locations within the study area. At each site the dependent variable erosion was estimated, as were a range of independent variables through field study. Two Digital Elevation Models were developed. Laboratory analysis was also undertaken to explore the physico-chemical processes relating to soil dispersion and to determine the applicability of a soil sodicity meter developed by the Co-operative Research Centre for Soil and Land Management in Adelaide, Australia. Results demonstrate that classification accuracy.and overall performance is strongly dependent on the independent and dependent variables used, with the more expensive field collected data providing improved variables to those extracted from the Digital Elevation Models. Discriminant Analysis (DA) classifications were also employed to provide a linear comparison to the AI techniques, and performed comparably well. In the Artificial Neural Network classifications the composition of the training set was seen to exert significant bias, leading to poor performance and often misleading results. Laboratory analysis highlights the complex physico-chemical relationships associated with soil dispersion. The findings also indicate that no discernible relationship exists between the sodicity meter and standard laboratory procedures employed to measure the sodic properties of a soil. The thesis demonstrates the potential for employing these methods for erosion risk analysis and the ability of inductive approaches to formulate rules that may enhance current levels of understanding associated with soil erosion processes. Mapped outputs produced by these methods may prove valuable in the management of landscapes susceptible to soil erosion.
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Książki na temat "Erosion mapping"

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Madhiri, L. W. Erosion hazard mapping of the SADCC region. Maseru, Lesotho: Southern African Development Coordination Conference, Soil and Water Conservation and Land Utilization Sector, 1989.

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Stocking, Michael A. A methodology for erosion hazard mapping of the SADCC region. Maseru, Lesotho: Southern African Development Coordination Conference, Soil & Water Conservation and Land Utilization, 1987.

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Stocking, Michael. A methodology for erosion hazard mapping of the SADCC region: Paper. Maseru, Lesotho: Southern African Development Coordination Conference, Soil & Water Conservation and Land Utilization, 1987.

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Okeremi, A. O. Mapping the erosion of alloys in wet environments at elevated temperatures. Manchester: UMIST, 1997.

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Jong, Steven M. de. Applications of reflective remote sensing for land degradation studies in a Mediterranean environment. [Amsterdam]: Koninklijk Nederlands Aardrijkskundig Genootschap, 1994.

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Currie, Robert Emmet. The use of remote sensing and geographic information systems for soil erosion hazard mapping in Chiapas, Mexico. Ottawa: National Library of Canada, 1997.

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SADC ELMS Regional Workshop on Digitization of Erosion Hazard Maps (1995 Maseru, Lesotho). Proceedings of the SADC ELMS Regional Workshop on Digitization of Erosion Hazard Maps : held in Maseru, Lesotho, 27 November to 1 December 1995. Maseru, Lesotho: SADC Environment and Land Management Sector Coordination Unit, 1998.

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Mainam, Félix. Modelling soil erodibility in the semiarid zone of Cameroon: Assessment of interrill erodibility parameters for mapping soil erosion hazard by means of GIS techniques in the Gawar area = Modellering van de erosiegevoeligheid van de bodem in het Semi-aride gebied van Kameroen : bepaling van de parameters van vlakte erosie voor het in kaart brengen van het risiko van bodemerosie door middel van GIS technieken in het Gawar gebied. Enschede, the Netherlands: ITC, 1999.

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Capitanelli, Ricardo G. Concepción geográfica de paisaje, erosión, y formas de cartografiarlas. Buenos Aires: Academia Nacional de Geografía, 1994.

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Dräyer, Dietrich. GIS-gestützte Bodenerosionsmodellierung im Nordwestschweizerischen Tafeljura: Erosionsschadenskartierungen und Modellellergebnisse = GIS-based soil erosion modelling in NW-Switzerland : erosion damage mappings and modelling results. Basler: Wepf, 1996.

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Części książek na temat "Erosion mapping"

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Ojo, O. I., O. O. Awujoola i M. F. Ilunga. "Flood and Erosion Risk Assessment Mapping". W Handbook of Climate Change Management, 1–16. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-22759-3_174-1.

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Reuter, H. I., L. Rodriguez Lado, T. Hengl i L. Montanarella. "Modeling Wind Erosion Events – Bridging the Gap Between Digital Soil Mapping and Digital Soil Risk Assessment". W Digital Soil Mapping, 281–93. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-8863-5_23.

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Kosmas, C. S., i N. G. Danalatos. "Definition and Mapping of Desertification Units in Mediterranean Areas under Rainfed Cereals". W Modelling Soil Erosion by Water, 491–501. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-58913-3_37.

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Li, Fayuan, i Guoan Tang. "DEM based Terrain Factor of Soil Erosion at regional Scale and Soil Erosion Mapping". W Lecture Notes in Geoinformation and Cartography, 383–95. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19214-2_26.

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Shit, Pravat Kumar, Gouri Sankar Bhunia i Hamid Reza Pourghasemi. "Gully Erosion Susceptibility Mapping Based on Bayesian Weight of Evidence". W Gully Erosion Studies from India and Surrounding Regions, 133–46. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-23243-6_8.

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Ghirardi, Nicola, Mariano Bresciani, Giulia Luciani, Gianfranco Fornaro, Virginia Zamparelli, Francesca De Santi, Giacomo De Carolis i Claudia Giardino. "Mapping of the risk of coastal erosion for two case studies: Pianosa island (Tuscany) and Piscinas (Sardinia)". W Proceedings e report, 713–22. Florence: Firenze University Press, 2020. http://dx.doi.org/10.36253/978-88-5518-147-1.71.

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This study focuses on the use of remote sensing to generate coastal erosion risk maps for Pianosa Island (Tuscany) and Piscinas dune system (Sardinia). The method made use of both ancillary and satellite data (Sentinel-2), in addition to SAR images (COSMO SkyMed and Sentinel-1B). TOA radiance products were atmospherically corrected and processed using Sen2Coral and BOMBER in order to map different marine substrates and bathymetry. The coastal erosion risk maps have been generated based on these output and the results confirm that the coasts of these sites don’t have coastal erosion problems.
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Amiri, Mahdis, i Hamid Reza Pourghasemi. "Mapping and Preparing a Susceptibility Map of Gully Erosion Using the MARS Model". W Gully Erosion Studies from India and Surrounding Regions, 405–13. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-23243-6_27.

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Santra, Abhisek, i Shreyashi S. Mitra. "Drought Frequency and Soil Erosion Problems in Puruliya District of West Bengal, India". W Mapping, Monitoring, and Modeling Land and Water Resources, 83–102. First edition. | Boca Raton : CRC Press, 2021.: CRC Press, 2021. http://dx.doi.org/10.1201/9781003181293-7.

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Abbate, A., J. Frankel, Robert W. Reed i P. Das. "Ultrasonic Gauging and Wavelet Image Processing for Wear and Erosion Mapping". W Review of Progress in Quantitative Nondestructive Evaluation, 1831–38. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-5947-4_239.

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Murooka, Mizue, Yasuhiro Kuwahara i Shigeko Haruyama. "Mapping Coastal Erosion Risk in the Southern Red River Delta, Vietnam". W Monitoring and Modeling of Global Changes: A Geomatics Perspective, 199–220. Dordrecht: Springer Netherlands, 2015. http://dx.doi.org/10.1007/978-94-017-9813-6_10.

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Streszczenia konferencji na temat "Erosion mapping"

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Kwiatkowski, Brian, i Robert Prager. "Erosion Hazards Mapping in the Stevens Creek Watershed". W World Environmental and Water Resources Congress 2007. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40927(243)608.

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Wodajo, Leti, Shariful Islam, Parsa Rad, Craig Hickey i Glenn Wilson. "Mapping internal erosion soil pipes using geophysical methods". W Symposium on the Application of Geophysics to Engineering and Environmental Problems 2021. Society of Exploration Geophysicists and Environment and Engineering Geophysical Society, 2021. http://dx.doi.org/10.4133/sageep.33-005.

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Rogers, Jonathan, Frances Loran i Geoff Astle. "NATIONAL COASTAL EROSION RISK MAPPING THE FIRST NATIONAL RUN". W Proceedings of the 31st International Conference. World Scientific Publishing Company, 2009. http://dx.doi.org/10.1142/9789814277426_0352.

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Panidi, Evgeny. "SATELLITE IMAGERY APPLIED TO MAPPING OF THE EROSION MICRORELIEF STRUCTURES". W 16th International Multidisciplinary Scientific GeoConference SGEM2016. Stef92 Technology, 2016. http://dx.doi.org/10.5593/sgem2016/b23/s11.053.

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Kruglov, O., i O. Menshov. "MAPPING OF THE SOIL MAGNETIC SUSCEPTIBILITY FOR THE EROSION PROCESSES MODELING". W Monitoring 2019. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201903250.

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Ge, Linlin, Xiaojing Li, Fan Wu i Ian L. Turner. "Coastal erosion mapping through intergration of SAR and Landsat TM imagery". W IGARSS 2013 - 2013 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2013. http://dx.doi.org/10.1109/igarss.2013.6723269.

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Stoehr, Heiko, M. Reusing, T. Schneider, W. Kornus i Manfred Lehner. "Mapping of erosion risk zones in the Lake Tana region of Ethiopia". W SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, redaktor Toni F. Schenk. SPIE, 1995. http://dx.doi.org/10.1117/12.216938.

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Roberge, Laurent, Gerald Ferris i Hamish Weatherly. "Past Bank Erosion as a Guide for Bank Erosion Prediction at Pipeline Crossings". W 2016 11th International Pipeline Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ipc2016-64199.

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This paper presents a methodology which uses past bank erosion behaviour as a predictor of future performance. The methodology employed in the bank erosion study consists of the following main steps: identifying a reach to examine, classifying the watercourse, estimating key hydrotechnical properties, obtaining historical air photographs of the reach, georeferencing or orthorectifying the airphotos, mapping the position of the channel edge, obtaining the historical records of nearby gauges to estimate the return period of floods that have occurred between successive pairs of historical air photographs, and finally combining the results to provide correlations between the rates of bank erosion and the rarity of the floods that have occurred. More than 70 bank erosion studies have been completed in the past two years at a variety of watercourses. This paper provides three case histories that illustrate the methodology and then proceeds to provide some tentative relationships that could be used to focus future bank erosion studies on those sites most active, and used to provide a preliminary estimate of the amount of bank erosion that could be expected in both design settings and existing pipeline integrity evaluations. In this study wandering rivers are more laterally active than other channel pattern types. Although the smallest floods do not cause large-scale changes to the banks, significant bank erosion can be caused by either moderate (20-year) or extreme (100-year) events with a rough trend to larger bank erosion in larger floods. No significant correlation between the time elapsed between successive air photos and the magnitude of erosion was found, suggesting that bank erosion is an event-driven process rather than time dependent.
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Russo, Wanderley Camargo, Alcindo Pereira dos Santos Filho, Celso Rodrigues da Silveira Filho, Cláudio dos Santos Amaral, Maurício Martines Sales, Carlos Alberto Lauro Vargas, Patrícia de Araújo Romão i Diego Tarley Ferreira Nascimento. "Susceptibility to Erosion of Pipeline Rights-of-Way in Tropical Soils: Case of a Brazilian Pipeline". W ASME 2013 International Pipeline Geotechnical Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ipg2013-1935.

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TRANSPETRO is responsible, among other activities, by operation and maintenance of pipelines throughout Brazil. Particularly in the Midwest region the company operates the OSBRA pipeline, which moves about 8.7 Mm3/years of fuel and covers approximately 1,000 km long, predominantly in tropical soils. Erosive processes are significant and constitute the main geotechnical occurrence in OSBRA pipelines rights-of-way. In order to identify the susceptibility to erosion of the area close to the pipelines were developed basic thematic maps, that overlaid will help in identifying homogeneous zones in terms of existing material susceptibility. The mapping is being accompanied by an extensive endeavor of field inspections along the pipeline rights-of-way, that comprised geotechnical investigations, verifying the conditions of use and soil management, the conservation status of existing drainage works and geotechnical characterization of soil samples of major geological formations, including erodibility tests. The methodology is being developed in ArcGIS frame, starting from the morphometric analysis and the use of Digital Elevation Models (DEM), aiming to understanding superficial flow conditions (acceleration and concentration) and consequent soil loss. The modeling results will be compared with historical occurrences erosive 15 (fifteen) years of pipeline operation, seeking for an adherence on various geological, topographical and meteorological tested. The methodology will improve further procedures for identifying potential erosions in tropical soils and will allow to anticipating preventive maintenance in the most susceptible locals the pipeline rights-of-way, suggesting mitigation measures best suited for each type of potential erosive mechanism.
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Passo, D. P., E. S. Bias, R. S. Brites, G. A. O. P. Costa i R. R. Antunes. "Susceptibility mapping of linear erosion processes using object-based analysis of VHR images". W GEOBIA 2016 : Solutions and Synergies. University of Twente Faculty of Geo-Information and Earth Observation (ITC), 2016. http://dx.doi.org/10.3990/2.434.

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Raporty organizacyjne na temat "Erosion mapping"

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Barbosa, M., V. Singhroy i R. Saint-Jean. Mapping Coastal Erosion in Southern Paraiba, Brasil from RADARSAT-1. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1999. http://dx.doi.org/10.4095/219598.

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