Data provided by National Oceanic and Atmospheric Administration
The gravity station data (10,578 records) were compiled by the U.S. Geological Survey and the State of Alaska Division of Geological & Geophysical Surveys. This data base was received in February, 1993. Principal gravity parameters include Free-air anomalies, isostatic anomalies and Simple Bouguer anomalies (no terrain correction applied). The "wpn" suffix indicates that a crustal thickness of 30 kilometers was used in the isostatic calculation. The observed gravity values are referenced to the International Gravity Standardization Net 1971 (IGSN 71). The gravity anomaly computation uses the Geodetic Reference System 1967 (GRS 67) theoretical gravity formula. Note that the original USGS Open File Report by D. F. Barnes mentions the use of the 1931 International Ellipsoid for gravity reduction but this is believed to have subsequently been changed to the GRS 67 system.
About this Dataset
Updated: 2024-02-22
Metadata Last Updated:
2025-11-19T16:16:09.097Z
Date Created:
N/A
Data Provided by:
Dataset Owner:
N/A
| Title | Alaska1(ak1_wpn) Gravity Data |
|---|---|
| Description | The gravity station data (10,578 records) were compiled by the U.S. Geological Survey and the State of Alaska Division of Geological & Geophysical Surveys. This data base was received in February, 1993. Principal gravity parameters include Free-air anomalies, isostatic anomalies and Simple Bouguer anomalies (no terrain correction applied). The "wpn" suffix indicates that a crustal thickness of 30 kilometers was used in the isostatic calculation. The observed gravity values are referenced to the International Gravity Standardization Net 1971 (IGSN 71). The gravity anomaly computation uses the Geodetic Reference System 1967 (GRS 67) theoretical gravity formula. Note that the original USGS Open File Report by D. F. Barnes mentions the use of the 1931 International Ellipsoid for gravity reduction but this is believed to have subsequently been changed to the GRS 67 system. |
| Modified | 2025-11-19T16:16:09.097Z |
| Publisher Name | N/A |
| Contact | N/A |
| Keywords | 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 , Absolute Gravity , Bouguer Gravity , Free Air Anomaly , Gridded Gravity , Land Gravity , Observed Gravity , ICSU-WDS > International Council for Science - World Data System , Continent>North America>United States of America>Alaska , 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 , geoscientificInformation |
{
"identifier": "gov.noaa.ngdc.mgg.geophysics:G01453",
"accessLevel": "public",
"contactPoint": {
"@type": "vcard:Contact",
"fn": "Your contact point",
"hasEmail": "mailto:[email protected]"
},
"programCode": [
"010:000"
],
"landingPage": "",
"title": "Alaska1(ak1_wpn) Gravity Data",
"description": "The gravity station data (10,578 records) were compiled by the U.S. Geological Survey and the State of Alaska Division of Geological & Geophysical Surveys. This data base was received in February, 1993. Principal gravity parameters include Free-air anomalies, isostatic anomalies and Simple Bouguer anomalies (no terrain correction applied). The \"wpn\" suffix indicates that a crustal thickness of 30 kilometers was used in the isostatic calculation. The observed gravity values are referenced to the International Gravity Standardization Net 1971 (IGSN 71). The gravity anomaly computation uses the Geodetic Reference System 1967 (GRS 67) theoretical gravity formula. Note that the original USGS Open File Report by D. F. Barnes mentions the use of the 1931 International Ellipsoid for gravity reduction but this is believed to have subsequently been changed to the GRS 67 system.",
"language": "",
"distribution": [
{
"@type": "dcat:Distribution",
"mediaType": "application\/json",
"accessURL": "https:\/\/www.ncei.noaa.gov\/metadata\/geoportal\/\/rest\/metadata\/item\/gov.noaa.ngdc.mgg.geophysics%3AG01453"
},
{
"@type": "dcat:Distribution",
"mediaType": "text\/html",
"accessURL": "https:\/\/www.ncei.noaa.gov\/metadata\/geoportal\/\/rest\/metadata\/item\/gov.noaa.ngdc.mgg.geophysics%3AG01453\/html"
},
{
"@type": "dcat:Distribution",
"mediaType": "application\/xml",
"accessURL": "https:\/\/www.ncei.noaa.gov\/metadata\/geoportal\/\/rest\/metadata\/item\/gov.noaa.ngdc.mgg.geophysics%3AG01453\/xml"
}
],
"bureauCode": [
"010:04"
],
"modified": "2025-11-19T16:16:09.097Z",
"publisher": {
"@type": "org:Organization",
"name": "Your Publisher"
},
"theme": "",
"keyword": [
"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",
"Absolute Gravity",
"Bouguer Gravity",
"Free Air Anomaly",
"Gridded Gravity",
"Land Gravity",
"Observed Gravity",
"ICSU-WDS > International Council for Science - World Data System",
"Continent>North America>United States of America>Alaska",
"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",
"geoscientificInformation"
]
}
