Shapefiles for glacier, stream channel, and watershed boundaries in the McMurdo Dry Valleys, Antarctica (2023)

This data package includes shapefiles for selected glacier, stream watershed, and stream channel boundaries in the McMurdo Dry Valleys region of Antarctica. A combination of satellite imagery and digital elevation models were used to delineate watershed and stream channel outlines, while glaciers were outlined by hand. Watershed boundaries provide an estimate of the overall topographic contributing area for each stream in Fryxell Basin, whereas stream channel boundaries provide a topographic area estimate for stream channel, beyond the wetted margin, for each stream.本数据集套件包含南极洲麦克默多干谷（McMurdo Dry Valleys）区域内选定的冰川、河流流域与河道边界的形状文件（Shapefile）。本研究结合卫星影像与数字高程模型（Digital Elevation Model）勾勒了流域与河道的轮廓，冰川边界则通过人工手绘完成。弗莱克瑟尔盆地（Fryxell Basin）内各溪流的流域边界可用于估算其整体地形汇水面积；河道边界则可用于估算各河道在过水边缘之外的地形覆盖范围。