نتایج جستجو برای: gully erosion

تعداد نتایج: 30968  

2012
Kelly Jean Kolb Alfred S. McEwen Jon D. Pelletier

The origin of the martian gullies has been much debated since their discovery by the Mars Orbiter Camera (MOC, Malin, M.C., Edgett, K.S. [2000]. Science 288, 2330–2335). Several previous studies have looked at slope gradients in and around gullies, but none have used Digital Elevation Models (DEMs) from the High Resolution Imaging Science Experiment (HiRISE, McEwen, A.S., and 14 colleagues [200...

ژورنال: علوم آب و خاک 2006
امیرحسین چرخابی, , فاضل ایرانمنش, , نادر جلالی, ,

Dasht Yari plain is nearly 580,000 hectares which is under engraving gully erosion and unfortunately the gully development rate is increased in the recent decades. Satellite images may provide quick, extensive, and valuable information for the interpretation of morphometric characterstics of gully erosion expansion due to having attributes such as time series, relatively low cost, large coverag...

Journal: :Catena 2021

Gully erosion represents one of the most destructive geomorphological processes at a global level. Modern methods gully measurement are typically derived from earlier techniques that have since become outdated. The increasing capabilities technology had led to new ways quantifying soil (e.g. erosion) which must be used in assessment. A tool designed assess coastal – Digital Shoreline Analysis S...

Journal: :Remote Sensing 2014
Sebastian d'Oleire-Oltmanns Irene Marzolff Dirk Tiede Thomas Blaschke

This study aims at the detection of gully-affected areas by applying object-based image analysis in the region of Taroudannt, Morocco, which is highly affected by gully erosion while simultaneously representing a major region of agro-industry with a high demand of arable land. As high-resolution optical satellite data are readily available from various sensors and with a much better temporal re...

Journal: :E3S web of conferences 2022

The occurrence and development of erosion gully will increase the area soil continuously erode cultivated land. treatment is swing in black region Northeast China. However, they are all directed at typical area, while caused by semi-arid less concerned. study uses a combination RS census data. Exploring number status development, survey results show that :the large, most them developmental gull...

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