نتایج جستجو برای: gully volume
تعداد نتایج: 315887 فیلتر نتایج به سال:
Abstract. Over the past few decades, developments in remote sensing have resulted an ever-growing availability of topographic information on a global scale. A recent development is TanDEM-X (TerraSAR-X add-on for digital elevation measurements), interferometric synthetic aperture radar (SAR) mission Deutsche Zentrum für Luft- und Raumfahrt, providing near-global coverage and 12 m resolution mod...
gully erosion is one of the most complicated and destructive forms of water erosion. in order to prevent this erosion, the important factors advancing gully head must be recognized. nowadays, several models have been proposed in measuring gully head advancement and identifying the severity of erosion. these models must be calibrated for each country to see whether they are applicable or not. so...
Gully Erosion Classification in Kermanshah Province using Relative Similarity Analysis with Morphometric and Soil Auxiliary Variables
We found that craters in the mid-latitudes of Mars possess a marked asymmetry, which is linked with the occurrence of gullies. We also found that a prerequisite for gully formation is the occurrence of steep slopes. The analysis was performed in three areas with elevation data from the High Resolution Stereo Camera (HRSC) on-board Mars Express. Figure 1: MOLA global map with our study sites mar...
Exploring the phenomenon of surface cracks and abnormal ground behavior during coal mining under gully landforms, laboratory physical similarity simulation models were established to study movement characteristics laws working faces different methods landforms. The results indicate that in cases when a roadway is situated below top slope, corresponding deformation surrounding rock aggravated by...
Gully erosion is an important sediment source in small watershed, and causes severe land degradation, particularly semi-arid regions. Accurately measuring gully morphological characteristics, determining its topographic threshold, are vital for simulation control. In this study, 910 gullies were visually interpreted by unmanned aerial vehicle (UAV) technology combined with field measurement. Te...
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