j399sf.m77t and j399sf.h77t: MGD77T data and header files for single-beam bathymetry data for field activity J-3-99-SF in Grizzly Bay, San Francisco Bay from 11/08/1999 to 11/18/1999

Single-beam bathymetry data along with DGPS navigation data was collected as part of the U.S. Geological Survey cruise J-3-99-SF. The cruise was conducted in Grizzly...单波束测深数据与差分全球定位系统（DGPS）导航数据，系美国地质调查局（U.S. Geological Survey）J-3-99-SF航次的采集成果之一。该航次的作业区域位于格里利（Grizzly）……