Data underlying the publication: Coupled ADCPs can yield complete Reynolds stress tensor profiles in geophysical surface flows

Coupled ADCP data to measure Reynolds stresses in a tidally affected stretch of the Mahakam River near the city of Samarinda. The data are collected with two ADCPs mounted on the bottom of the river and coupled with a special synchronization cable to avoid interference between the two instruments. Two ADCPs were used in such a way that the variance of the velocity in the direction of the acoustic beams can be combined to obtain all the six terms in the Reynolds stress tensor.

本数据集针对萨马林达市附近受潮汐影响的马哈卡姆河段，采用耦合部署的声学多普勒流速剖面仪（Acoustic Doppler Current Profilers，ADCPs）测量雷诺应力。数据采集过程中，两台ADCP固定安装于河底，并通过专用同步电缆实现耦合连接，以避免两台仪器间的信号干扰。通过特定的布设方式，可将声束方向的速度方差进行组合计算，进而得到雷诺应力张量的全部六个分量项。