ADCP dataset (RDI WorkHorse 300 kHz @ 1 sample / hour) from INGV/GEOSTAR - SN-3 seafloor platform during ORION-GEOSTAR3 project in Southern Tyrrhenian Sea site (Marsili Basin), part of ORION network

The Acoustic Doppler Current Profiler measures the water velocity using the physical Doppler shift principle. The transducer generates a pulse of sound at a known frequency that travels through the water and is reflected in all directions by particulate matter (e.g., sediment, biological matter, bubbles). Some portion of the reflected energy travels back at the transducer where the processing electronics measure the change in frequency. The Doppler shift measured by the transducer reflects the velocity of the water along the axis of the acoustic beam.

声学多普勒流速剖面仪（Acoustic Doppler Current Profiler）依托物理多普勒频移原理测量水体流速。换能器发射已知频率的声脉冲，该脉冲在水体中传播，并被水体中的颗粒物（如泥沙、生物颗粒物、气泡）向各个方向反射。部分反射声能传回至换能器，由其内置的信号处理电子电路测量频率变化量。换能器测得的多普勒频移，可反映沿声束轴线方向的水体流速。

搜集汇总

背景与挑战

背景概述

该数据集是ORION-GEOSTAR3项目的一部分，使用RDI WorkHorse Sentinel ADCP 300 kHz仪器，在南第勒尼安海Marsili Basin的GEOSTAR - SN-3海底平台进行测量，采样率为每小时一次，时间跨度为2003年12月14日至2004年4月24日。数据集专注于海洋洋流观测，数据以二进制专有格式存储，采用CC BY 4.0许可证开放获取，总大小约54 MB/年，状态为完成。