Ice Draft and Ice Velocity Data in the Beaufort Sea, 1990-2003, Version 1

This data set provides measurement of sea ice draft (m) and the movement of sea ice (cm/s) over the continental shelf of the Eastern Beaufort Sea. The data set spans April 1990 to September 2003. The data set was acquired to assist in determining the character and recurrence of ice features hazardous to offshore industrial activity, specifically for the exploitation of hydrocarbon reserves and the impact of climate variability and change on the Beaufort Sea ice regime. Observations were made using two types of self-contained Upward Looking Sonar (ULS) moored near the sea floor: an Ice Profiling Sonar (IPS) used to obtain ice draft data and an Acoustic Doppler Current Profiler (ADCP) used to obtain the ice velocity data.

本数据集提供了东波弗特海大陆架海域的海冰吃水深度（单位：米，m）与海冰运动速度（单位：厘米每秒，cm/s）测量数据。数据集的时间覆盖范围为1990年4月至2003年9月。本次数据采集旨在辅助识别对近海工业活动构成威胁的冰体特征及其重现规律，尤其针对油气储量开发，以及气候变率与气候变化对波弗特海冰情的影响相关研究。观测工作依托两套部署于海床附近的自持式向上声呐（Upward Looking Sonar, ULS）锚碇系统完成：其中冰剖面声呐（Ice Profiling Sonar, IPS）用于采集海冰吃水深度数据，声学多普勒流速剖面仪（Acoustic Doppler Current Profiler, ADCP）则用于采集海冰运动速度数据。