SGLF global boundaries

The boundary shapefile for all 320 superimposed glacier-like forms (SGLFs) described in this study, all projected to the Mars2000 equicylindircal projection system. The field 'Sinu_area' lists the area (km^2) of each SGLF derived from a sinusoidal projection system of these polygons. The field 'Glob_ID' refers to each unique SGLF idea, as listed in table1.xlsx (this repository).本研究涉及的全部320个叠加类冰川地貌（Superimposed Glacier-like Forms，SGLFs）的边界形状文件（Shapefile），所有数据均已投影至Mars2000等圆柱投影系统（Mars2000 Equicylindrical Projection System）。其中字段"Sinu_area"记录了基于上述多边形的正弦投影系统计算得到的每个叠加类冰川地貌的面积，单位为平方千米（km²）；字段"Glob_ID"则对应本存储库中table1.xlsx表格所列的每个唯一叠加类冰川地貌标识符。