MEaSUREs BedMachine Antarctica, Version 3

This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program, contains a bed topography/bathymetry map of Antarctica based on mass conservation, streamline diffusion, and other methods. The data set also includes ice thickness, surface elevation, an ice/ocean/land mask, ice thickness estimation errors, and a map showing where each method was utilized.本数据集隶属于美国国家航空航天局（National Aeronautics and Space Administration，NASA）旗下的面向研究环境的地球系统数据记录制作（Making Earth System Data Records for Use in Research Environments，MEaSUREs）计划，包含基于质量守恒、流线扩散等方法生成的南极基床地形与海底地形图。本数据集还涵盖冰厚、表面高程、冰/海洋/陆地掩膜、冰厚估算误差，以及标注各方法应用区域的分布图。