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High Definition Geomagnetic Model 2025
The High Definition Geomagnetic Model (HDGM) is a global, high resolution model of the Earth's geomagnetic main and crustal field, providing magnetic field values (total field, dip, and declination) at any point above or below the Earth's surface. Well planners can use HDGM to compute magnetic reference values at any point, as well as easily integrate HDGM into their directional drilling software. HDGM is updated annually to correctly model secular changes in the geomagnetic field.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{
"fn": "NOAA National Centers for Environmental Information",
"@type": "vcard:Contact",
"hasEmail": "mailto:ncei.info@noaa.gov"
}
|
| describedByType | application/octet-steam |
| description | The High Definition Geomagnetic Model (HDGM) is a global, high resolution model of the Earth's geomagnetic main and crustal field, providing magnetic field values (total field, dip, and declination) at any point above or below the Earth's surface. Well planners can use HDGM to compute magnetic reference values at any point, as well as easily integrate HDGM into their directional drilling software. HDGM is updated annually to correctly model secular changes in the geomagnetic field. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Metadata Landing Page",
"mediaType": "placeholder/value",
"downloadURL": "https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ngdc:HDGM2025/html",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "HDGM Home Page",
"mediaType": "placeholder/value",
"description": "High Definition Geomagnetic Model (HDGM2025) is sent via secure file transfer protocol",
"downloadURL": "https://www.ncei.noaa.gov/products/high-definition-geomagnetic-model",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "Global Change Master Directory (GCMD) Keywords",
"mediaType": "placeholder/value",
"description": "The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.",
"downloadURL": "https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "NCEI Contact Information",
"mediaType": "placeholder/value",
"description": "Information for contacts at NCEI.",
"downloadURL": "https://www.ncei.noaa.gov/contact",
"describedByType": "application/octet-steam"
}
]
|
| identifier | gov.noaa.ngdc:HDGM2025 |
| issued | 2024-12-06T00:00:00.000+00:00 |
| keyword |
[
"Earth Science > Solid Earth > Geomagnetism > Magnetic Field",
"Earth Science > Solid Earth > Geomagnetism > Magnetic Intensity",
"Earth Science > Solid Earth > Geomagnetism > Magnetic Declination",
"Earth Science > Solid Earth > Geomagnetism > Magnetic Inclination",
"Geographic Region > Global",
"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"
]
|
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2024-12-06T00:00:00.000+00:00 |
| publisher |
{
"name": "NOAA National Centers for Environmental Information",
"@type": "org:Organization"
}
|
| rights | otherRestrictions |
| spatial | 180.0,-90.0,-180.0,90.0 |
| temporal | 1900-01-01T00:00:00+00:00/2025-12-31T00:00:00+00:00 |
| title | High Definition Geomagnetic Model 2025 |
