o100sc.m77t and o100sc.h77t: MGD77T data and header file for single-beam bathymetry for field activity O-1-00-SC in San Pedro Bay, Santa Monica, California from 04/09/2000 to 04/14/2000

Single-beam bathymetry data along with GPS navigation data was collected as part of the U.S. Geological Survey cruise O-1-00-SC. The cruise was conducted in San Pedro Bay, Santa Monica, California from April 9 to April 14, 2000. The chief scientists were Brian Edwards and Homa Lee from the USGS Coastal and Marine Geology office in Menlo Park, CA. The purpose of this cruise was to study pollution transport and accumulation in Santa Monica Bay. The geophysical source is unknown. 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/o/o100sc/html/o-1-00-sc.meta.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.本数据集包含单波束测深数据（single-beam bathymetry data）与GPS导航数据（GPS navigation data），为美国地质调查局（U.S. Geological Survey, USGS）航次O-1-00-SC的采集成果。该航次于2000年4月9日至4月14日在加利福尼亚州圣莫尼卡的圣佩德罗湾开展，首席科学家为来自加利福尼亚州门洛帕克市USGS海岸与海洋地质办公室的Brian Edwards与Homa Lee。本次航次的研究目标为圣莫尼卡湾内的污染物运移与累积过程，本次数据的地球物理数据源未知。本批数据源自美国海岸与海洋地质计划（Coastal and Marine Geology Program, CMGP）信息库野外活动目录（网址：http://walrus.wr.usgs.gov/infobank/o/o100sc/html/o-1-00-sc.meta.html）中的空格分隔ASCII文本文件，已被重新格式化为由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。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）。有关该格式的详细信息，可查阅本元数据文件交叉引用部分所列的相关出版物。