gov.noaa.ngdc:G01414 eng utf8 dataset Susan McLean DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (303) 497-6478 (303) 497-6513 NOAA/NESDIS/NGDC E/GC2 325 Broadway Boulder CO 80305-3328 USA Susan.McLean@noaa.gov 7:30 - 5:00 Mountain Contact Data Center pointOfContact 2010-04-22 ISO 19115 2003 area http://www.ngdc.noaa.gov/metadata/extensions/local_extensions.html NGDC Extensions to FGDC Metadata 1-deg x 1-deg Terrestrial Mean Free-Air Anomalies 1999 publication 1999 Edition Gravity http://www.ngdc.noaa.gov/mgg/gravity/ DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (comp). originator The 1x1 degree Terrestrial Mean Free-Air Gravity Anomaly and Geoid Undulations Data Base was compiled and developed by the Ohio State University. This data base was received in March 1993. Principal gravity parameters include mean elevation, mean free-air anomaly and source id. The gravity anomaly computation uses the Geodetic Reference System 1967 (GRS 67) theoretical formula. The data are global in coverage where data are available. To provide easy access to global and regional gravity data and related models for scientific studies. completed Susan McLean DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (303) 497-6478 (303) 497-6513 NOAA/NESDIS/NGDC E/GC2 325 Broadway Boulder CO 80305-3328 USA Susan.McLean@noaa.gov 7:30 - 5:00 Mountain Contact Data Center pointOfContact irregular Earth Science > Solid Earth > Geodetics/Gravity > Control Surveys Earth Science > Solid Earth > Geodetics/Gravity > Gravitational Field Earth Science > Solid Earth > Geodetics/Gravity > Gravity Earth Science > Solid Earth > Geodetics/Gravity > Reference Systems Earth Science > Solid Earth > Geodetics/Gravity > Satellite Orbits theme NASA/GCMD Earth Science Keywords Absolute Gravity Bouguer Gravity Free Air Anomaly Gridded Gravity Land Gravity Observed Gravity theme Uncontrolled Keywords WDC/SEG, BOULDER > World Data Center for Solid Earth Geophysics, Boulder DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce theme NASA/GCMD Data Center Keywords Global North America place NASA/GCMD Location Keywords otherRestrictions otherRestrictions Access Constraints: None Use Constraints: If you use this data, please cite the National Geophysical Data Center and the originator of the data. Distribution Liability: 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. eng geoscientificInformation 0 -1 -71 72 Ground Condition true Binary User Services DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (303) 497-6826 (303) 497-6513 NOAA/NESDIS/NGDC E/GC 325 Broadway Boulder CO 80305-3328 USA ngdc.info@noaa.gov 7:30 - 5:00 Mountain distributor Depends on the data set Ordering Instructions: Price information is available upon request. Prepay by check, money order or bank card. There is a standard handling charge, with additional costs for special handling. Orders may be placed via fax, email, regular mail or telephone. Custom Order Process: Contact Data Center for information. 4 Days 1.65888E6 http://www.ngdc.noaa.gov/mgg/fliers/se-0703.html http://www.ngdc.noaa.gov/mgg/gravity/1999/document/html/tablegri.html http://www.ngdc.noaa.gov/mgg/gravity/1999cd.html http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_MediumNameCode iso9660 iso9660 Horizontal Positional Accuracy Horizontal accuracy varies from source contributor to source contributor. However, horizontal positions are usually taken from topographic maps of the area being surveyed. Accuracy may range up to +/- 100 feet. Vertical Positional Accuracy Vertical accuracy varies from source contributor to source contributor. However, vertical positions are usually taken from topographic maps of the area being surveyed, monumented benchmark locations, or they are determined by the use of the Global Positioning System (GPS). Accuracy may range from meters to centimeters or better. Not available Not available Not available Quantitative Attribute Accuracy Assessment Statistical analysis. Gravity data values are the result of the measurement of small variations in the gravitational field of the earth. The magnitudes and ranges of these variations are well known in the potential field discipline. Variable: the average acceleration on the Earth's surface is about 980 centimeters per second squared, which is equal to 980 gals, but increases by about 1/2 percent from equator to pole. All data were processed by the source before being forwarded to the National Geophysical Data Center Susan McLean DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (303) 497-6478 (303) 497-6513 NOAA/NESDIS/NGDC E/GC2 325 Broadway Boulder CO 80305-3328 USA Susan.McLean@noaa.gov 7:30 - 5:00 Mountain Contact Data Center processor Source Contribution: Gravity survey data varies 1-deg x 1-deg Terrestrial Mean Free-Air Anomalies rapp_deg.bin publication Ohio State University resourceProvider Release date 2011-04-22 This metadata was automatically generated from the Content Standards for Digital Geospatial Metadata standard version FGDC-STD-001-1998 . Metadata Review Date: 2010-04-22 Susan McLean DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (303) 497-6478 (303) 497-6513 NOAA/NESDIS/NGDC E/GC2 325 Broadway Boulder CO 80305-3328 USA Susan.McLean@noaa.gov 7:30 - 5:00 Mountain Contact Data Center custodian