| Description |
Single-beam bathymetry data along with Loran-C RHO-RHO and GPS navigation data was collected as part of the U.S. Geological Survey cruise F-6-90-SC. The cruise was conducted in Southern California, Monterey Canyon from June 19 to July 12, 1990. The chief scientists were Jim Gardner from the USGS Coastal and Marine Geology office in Menlo Park, CA and Doug Masson. The purpose of this cruise was to survey with midrange sidescan sonar (TOBI: towed ocean bottom instrument).The geophysical source was 12 kilohertz (kHz), 7 kHz, and 3.5 kHz systems. 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/f/f690sc/html/f-6-90-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. [More]
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