中国第34次南极科学考察（2017-2018年）南大洋走航ADCP（38K）观测数据

声学多普勒流速剖面仪（英语：Acoustic Doppler Current Profiler，缩写：ADCP）是一种用于测量水速的水声学流速计。其原理类似于声纳：ADCP向水中发射声波，水中的散射体使声波产生散射,ADCP接收散射体返还的回波信号，通过分析其多普勒效应频移以计算流速。

本数据为中国第34次南极科学考察的船载走航ADCP（38K）观测数据，调查数据包括经度、纬度、时间、航向、航速、文件序号、平均文件记录间隔等信息。

Acoustic Doppler Current Profiler (ADCP) is a type of hydroacoustic current meter used for measuring water flow velocity. Its operating principle is similar to that of sonar: ADCP emits acoustic waves into water, where scatterers in the water scatter the acoustic waves, and then receives the echo signals returned by these scatterers. The water flow velocity is calculated by analyzing the Doppler frequency shift of the received echo signals.

This dataset contains shipboard underway ADCP (38K) observation data collected during the 34th Chinese National Antarctic Research Expedition. The survey data includes information such as longitude, latitude, time, course, ship speed, file serial number, and average file recording interval.

搜集汇总

背景与挑战

背景概述

该数据集是中国第34次南极科学考察（2017-2018年）期间，使用“雪龙2”号科学考察船搭载的TRDI ADCP38K仪器，在南大洋进行走航观测获得的物理海洋数据，主要包含流速、流向等关键海洋参数，时间覆盖2018年2月至4月，数据量达21.2GB，以.ENR/.ENS/.ENX等专业格式存储，适用于海洋科学研究。