HLY-04-03 ADCP Data (30-min Averages) [Muenchow, A.]

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.

美国海岸警卫队巡逻舰‘Healy’配备了75千赫的相控阵声学多普勒流速剖面仪（ADCP）（海洋探测器），该仪器安装在船体下方，用于发射和接收声波脉冲的回波，从而估算水平流速的垂直分布。航向、俯仰和横滚等姿态信息由Ashtech ADU2-3DGPS接收器提供，而位置数据则由Trimble Centurion p-code DGPS系统提供。这些数据流提供了从水面下约20米至海底或约400米深度的地球参照系下的绝对水平流速及其垂直变化。