l977ar.m77t - MGD77 data file for Geophysical data from field activity L-9-77-AR in Arctic from 08/25/1977 to 10/08/1977

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: July 18, 2025 | Last Modified: 20201019

Single-beam bathymetry, magnetics, and gravity data along with transit satellite navigation data was collected as part of field activity L-9-77-AR in Arctic from 08/25/1977 to 10/08/1977, http://walrus.wr.usgs.gov/infobank/l/l977ar/html/l-9-77-ar.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/l977ar/html/l-9-77-ar.bath.html http://walrus.wr.usgs.gov/infobank/l/l977ar/html/l-9-77-ar.grav.html http://walrus.wr.usgs.gov/infobank/l/l977ar/html/l-9-77-ar.mag.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.

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AK Alaska Arctic Arctic Ocean Marine Geology Marine Geophysics Marine Gravity Marine Magnetics Marine Seismic Seafloor Topography Single-beam Bathymetry USGS:34e755e0-03b3-4bac-a169-c5d838fbd5d4 Water Depth bathymetry bathymetry and elevation bathymetry measurement distributions geoscientificinformation gravimeter measurement gravimetry magnetic field observations magnetometer measurement marine geophysics oceans single-beam echo sounder

Complete Metadata

@id	http://datainventory.doi.gov/id/dataset/0537cd34e48552d3cc6206ff27ce3373
bureauCode	[ "010:12" ]
identifier	USGS:34e755e0-03b3-4bac-a169-c5d838fbd5d4
spatial	-168.62703,64.4808,-140.86696,72.76758
theme	[ "geospatial" ]

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