HLY-03-01 ADCP Data (10-min Averages). Version 1.0

The United States Coast Guard Cutter (USCGC) Healy contains a 75-kHz phased-array Acoustic Doppler Current Profiler (ADCP) (Ocean Surveyor) mounted under the hull to transmit and receive echos of acoustic pulses from which to estimate vertical profiles of horizontal currents. Attitude information such as heading, pitch, and roll is provided by an Ashtech ADU2-3DGPS receiver while position data are provided by a Trimble Centurion p-code DGPS system. These data streams provide earth-referenced absolute horizontal currents and their vertical variations from about 20-m below the surface to the bottom or about 400-m depth.

美国海岸警卫队Healy号 cutter（USCGC）船体下方安装有一台75千赫兹（kHz）相控阵声学多普勒流速剖面仪（Acoustic Doppler Current Profiler, ADCP）（型号Ocean Surveyor），用于发射和接收声脉冲回波，以此估算水平流的垂直剖面。航向、俯仰和横滚等姿态信息由Ashtech ADU2-3DGPS接收机提供，位置数据则来自Trimble Centurion p码差分全球定位系统（Differential Global Positioning System, DGPS）。这些数据流可提供以地球为参考的绝对水平流及其垂直变化，覆盖范围从海面以下约20米至海底或约400米深度。