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，旨在供极地科学界使用。数据以表格形式（ASCII格式）呈现，包含纬度、经度、速度、方位角及误差范围。元数据头描述了数据来源、测量时间，并提供了测量准确度与精密度的详细信息。

这些数据集由多位研究者提供，大多数来自已发表的研究成果。数据采集同时采用了原位法和基于图像的方法。数据集的参考文献随数据表一同附上。