Southern Surveyor Voyage SS 01/98 Single beam acoustic data

This data set contains Simrad EK500 single beam echosounder data at 38 and 120 kHz and Simrad EA500 single beam echosounder data at 12 kHz from the Southern Surveyor. The EK500 data is primarily for water column characterisation (fish stocks, microplankton distribution) and on occasions for seabed classification (particularly prior to the EM300 swath mapper being installed), while the EA500 data is primarily for bathymetric readings.本数据集包含来自南方考察船（Southern Surveyor）的两类单波束回声测深数据：分别为工作于38 kHz与120 kHz频段的Simrad EK500单波束回声测深仪（Simrad EK500 single beam echosounder）采集数据，以及工作于12 kHz频段的Simrad EA500单波束回声测深仪（Simrad EA500 single beam echosounder）采集数据。其中EK500数据主要用于水体柱特征表征（涵盖鱼类种群、微型浮游生物分布），在EM300条带测深仪（EM300 swath mapper）安装前，偶尔也会用于海底分类；而EA500数据则主要用于水深测量（bathymetric readings）。