COVID Impacts on Low-Frequency Ocean Noise

This data set includes three data resources that were examined to study impacts of the COVID-19 pandemic on low-frequency ocean noise, through effects on shipping activity. (1) Spectrum levels for the band 31-100 Hz from a deep-sea hydrophone located off central California. (2) Automatic Identification System (AIS) vessel tracking data within an 80 km radius around hydrophone. (3) Gross tonnage of ships entering and leaving California ports.<br>

本数据集涵盖三类数据源，旨在依托船舶活动的变化效应，探究新冠疫情（COVID-19 pandemic）对低频海洋噪声（low-frequency ocean noise）的影响。
(1) 取自加利福尼亚中部外海深海水听器的31-100赫兹频段频谱级数据；
(2) 该水听器周边80公里范围内的船舶自动识别系统（Automatic Identification System，AIS）航迹追踪数据；
(3) 进出加利福尼亚州各港口的船舶总吨位数据。