l176mx.m77t - MGD77 data file for Geophysical data from field activity L-1-76-MX in Baja California from 01/06/1976 to 02/17/1976

Single-beam bathymetry data along with DGPS navigation data was collected as part of field activity L-1-76-MX in Baja California from 01/06/1976 to 02/17/1976, http://walrus.wr.usgs.gov/infobank/l/l176mx/html/l-1-76-mx.meta.html
These data are reformatted from space-delimited ASCII text files located in the Coastal and Marine Geology Program (CMGP) InfoBank field activity catalog at http://walrus.wr.usgs.gov/infobank/l/l176mx/html/l-1-76-mx.bath.html into MGD77T format provided by the NOAA's National Geophysical Data Center(NGDC). The MGD77T format includes a header (documentation) file (.h77t) and a data file (.m77t). More information regarding this format can be found in the publication listed in the Cross_reference section of this metadata file.

单波束测深数据与差分GPS（DGPS）导航数据作为野外作业L-1-76-MX的一部分，于1976年1月6日至1976年2月17日在下加利福尼亚州采集，相关元数据页面地址为http://walrus.wr.usgs.gov/infobank/l/l176mx/html/l-1-76-mx.meta.html
本数据集由存放于海岸与海洋地质项目（CMGP）信息银行野外作业目录中、以空格分隔的ASCII文本文件重新格式化而来，转换后的格式为美国国家海洋和大气管理局（NOAA）下属国家地球物理数据中心（NGDC）制定的MGD77T格式，原始文件所在地址为http://walrus.wr.usgs.gov/infobank/l/l176mx/html/l-1-76-mx.bath.html。MGD77T格式包含头文件（文档文件，后缀为.h77t）与数据文件（后缀为.m77t）两类文件。有关该格式的更多详细信息，可查阅本元数据文件交叉参考部分所列的相关出版物。