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- W3136121550 abstract "Grainflows produce temporary geomorphological signatures on the slipfaces of aeolian dunes, and are a fundamental agency by which dunes migrate. The purpose of this study is to present an algorithm to objectively and efficiently delineate grainflow boundaries by processing Digital Elevation Models (DEMs) in Matlab and ArcGIS. Grainflows can be identified by analyzing temporal changes in slipface elevation, and the morphology can be extracted by defining the boundary that encloses the area of movement. The method allows large numbers of grainflows to be quickly and objectively delineated and extracted from LiDAR data. The process avoids the subjective nature of manual measurement, thereby improving the commensurability of different grainflow regimes in both terrestrial and extraterrestrial environments. The algorithm is presented here in the context of analyzing grainflows and related processes on the slipfaces of dunes, but it is applicable over the broader scope of other forms of slope failure and geophysical flows, such as avalanches, snowslides, landslides, and debris flows." @default.
- W3136121550 created "2021-03-29" @default.
- W3136121550 creator A5084663129 @default.
- W3136121550 date "2021-03-01" @default.
- W3136121550 modified "2023-10-11" @default.
- W3136121550 title "An algorithm for objective analysis of grainflow morphology" @default.
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- W3136121550 doi "https://doi.org/10.1016/j.aeolia.2021.100686" @default.
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