l785nc.m77t - MGD77 data file for Geophysical data from field activity l-7-85-nc in Southern Pacific from 12/28/1983 to 01/03/1984

Single-beam bathymetry data along with transit satellite navigation data was collected as part of field activity L-7-85-NC in Northern California from 09/23/1985 to 10/04/1985, http://walrus.wr.usgs.gov/infobank/l/l785nc/html/l-7-85-nc.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/l785nc/html/l-7-85-nc.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.

1985年9月23日至10月4日，针对美国北加利福尼亚州的野外作业L-7-85-NC，采集了单波束测深数据（single-beam bathymetry data）与子午仪卫星导航数据（transit satellite navigation data），相关元数据可通过以下链接查阅：http://walrus.wr.usgs.gov/infobank/l/l785nc/html/l-7-85-nc.meta.html。
本数据集源自美国海岸与海洋地质计划（Coastal and Marine Geology Program, CMGP）信息库野外作业目录中的空格分隔ASCII文本文件，经转换后采用美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）下属国家地球物理数据中心（National Geophysical Data Center, NGDC）制定的MGD77T格式，原始数据文件的访问链接为：http://walrus.wr.usgs.gov/infobank/l/l785nc/html/l-7-85-nc.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）。有关该格式的详细说明，可查阅本元数据文件“交叉参考”部分所列的相关出版物。