VELMAP

VELMAP is a compilation of ice velocity data of the Antarctic ice sheet and is intended for use by the polar scientific community. The data are presented in tabular form (ASCII format), containing latitude, longitude, speed, bearing, and error ranges. A metadata header describes the source of the data, the time of measurement, and gives details on measurement accuracy and precision. The data sets were contributed by several investigators, in most cases from already-published work. Both in situ and image-based methods are used. References for the data sets are included with the data tables.

VELMAP是南极冰盖冰流速数据的汇编数据集，供极地科学界使用。该数据以表格形式（ASCII格式）存储，包含纬度、经度、流速、方位角以及误差范围。数据元数据头文件会说明数据来源、测量时间，并详细阐述测量的准确度与精密度。本数据集由多位研究者贡献，其中多数成果来自已发表的研究工作。数据采集同时采用了原位测量与基于影像的两种方法。数据集的参考文献随数据表一并提供。