Multibeam collection for NA121: Multibeam data collected aboard Nautilus from 20-Sep-20 to 01-Oct-20, Port Angeles, Washington to Astoria, Oregon

This data set is part of a larger set of data called the Multibeam Bathymetry Database (MBBDB) where other similar data can be found本数据集是多波束测深数据库（Multibeam Bathymetry Database，MBBDB）这一更大规模数据集集合的组成部分，该集合中可获取其他同类数据。