Linear dune orientations in Antarctica over summers 2018--2021
收藏DataCite Commons2024-05-31 更新2024-07-13 收录
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https://www.easydata.earth/metadataRecord/720db223-3073-465b-a427-d5742235dcfe
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资源简介：
The dataset contains the most frequent linear dune orientations over November-December in the years 2018 to 2021 at 25km resolution (EPSG:3031 - WGS 84 / Antarctic Polar Stereographic) over Antarctica, excepted the observation gap at latitudes above 82°S and the disturbed areas (crevasses, mountains) . The dune orientation is retrieved by processing all available Sentinel-2 and Landsat-8 images over this period (around 33,000 images). Objects larger than a kilometer, especially megadunes, are excluded and objects smaller than 30m can not be detected due to the image resolution. Bed-instability and elongating mode orientation are calculated from wind data from ERA-5 Reanalysis data of the years 2018--2021 at 0.25°x0.25° resolution (EPSG:4326 - WGS 84) following Courrech et al. 2014, DOI:10.1130/G35657.1
提供机构：
Data Terra
创建时间：
2024-05-31
