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Land and Marine Gravity Data on CD-ROM - 1999 Edition

The Land and Marine Gravity 1999 Edition 2-volume CD-ROM set contains observed and derived land and marine gravity data contributed by many national and international organizations, from both the academic and government sectors. Approximately 70 percent of the data are observed values--regional station data collections (separated primarily by contributors) and absolute gravity measurements. Grids and other derived summary data sets represent another 30 percent of the data. In general, data record parameters include Latitude, Longitude, Observed Gravity and Elevation, Bouguer Gravity Anomaly (land), and Free- air Anomaly (ocean). In all cases, each data set contains associated documentation, including source contributor. Data are in binary format with ancillary files for conversion of the data to ASCII. On the Land Gravity CD- ROM, data sets are grouped into directories based on type: Absolute, Grids, Regional, Global, and Correlative (Geoids). The Marine Gravity CD-ROM has gravity data from 1,555 ocean surveys grouped by regional location of the survey. Directories exist for the Gulf of Mexico and Caribbean Sea, Indian Ocean, Mediterranean and Black Seas, North Pacific, South Pacific, North Atlantic and South Atlantic. Surveys which cross ocean areas are included in both regional directories. The marine gravity data were collected from ships operated between the years 1961 and 1996. The Marine gravity surveys are provided in a modified MGD77 format containing survey location, observed gravity and free air-anomaly. The 1999 Edition of Gravity Data is Year 2000 compliant. All date values are full 4-digit years. The GeoVu geophysical data browse and visualization software is also Year 2000 compliant. The compliance is inherent because there are no built-in date manipulation routines. However, GeoVu is written to run on specific platforms and operating systems. There is no guarantee that GeoVu will operate on platforms other than those indicated in the Software documentation.
Cite this dataset when used as a source.
Distribution Formats
  • Binary
Distributor User Services
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
303-497-6826
ngdc.info@noaa.gov
Dataset Point of Contact Susan McLean
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6478
Susan.McLean@noaa.gov
Documentation links not available.
Date(s)
  • publication: 1999-04-05
Edition: First
Dataset Progress Status Under development
Data Update Frequency: Unknown
Purpose: Scientific and Private Use
Use Limitations
  • While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Originator(s)
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Publisher(s)
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Time Period: 1930-01-01 to Present
Spatial Bounding Box Coordinates:
N: 90.000000
S: -90.000000
E: 180.000000
W: -180.000000
Spatial Coverage Map:
Theme keywords Global Change Master Directory (GCMD) Science and Services Keywords
  • EARTH SCIENCE>SOLID EARTH>Geodetics/Gravity>Gravity
  • EARTH SCIENCE>SOLID EARTH>Geophysical Fields>Gravity Field
  • EARTH SCIENCE>SOLID EARTH>Geodetics/Gravity>Satellite Orbits
  • EARTH SCIENCE>SOLID EARTH>Geodetics/Gravity>Reference Systems
Uncontrolled Keywords
  • Observed
  • Absolute
  • Grids
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Place keywords Global Change Master Directory (GCMD) Location Keywords
  • North America
  • Global
Project keywords Global Change Master Directory (GCMD) Project Keywords
  • ICSU-WDS > International Council for Science - World Data System
Use Constraints
  • Use Constraints: None
Access Constraints
  • Access Constraints: No Constraints
Fees
  • Depends on the Data Set
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Last Modified: 2015-09-01
For questions about the information on this page, please email: Brian.Meyer@noaa.gov