Description
The World Magnetic Model is the standard model used by the U.S. Department of Defense, the U.K. Ministry of Defence, the North Atlantic Treaty Organization (NATO) and the International Hydrographic Organization (IHO), for navigation, attitude and heading referencing systems using the geomagnetic field. It is also used widely in civilian navigation and heading systems. The model is produced at 5-year intervals, with the current model expiring on December 31, 2024. The current model WMM2020 is produced jointly by the NCEI and the British Geological Survey (BGS). The model, associated software, and documentation are distributed by NCEI on behalf of US National Geospatial-Intelligence Agency and by BGS on behalf of UK Defence Geographic Centre.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Global Change Master Directory (GCMD) Keywords | Unknown | 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. | Open resource |
| Global Change Master Directory (GCMD) Keywords | Unknown | 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. | Open resource |
| Global Change Master Directory (GCMD) Keywords | Unknown | 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. | Open resource |
| NCEI Contact Information | Unknown | Information for contacts at NCEI. | Open resource |
| Metadata Landing Page | Unknown | Open resource | |
| WMM Home Page | HTML | Open resource | |
| World Magnetic Model Software Download Page | HTML | Webpage where you can access all of the different download formats for the offline World Mangetic Model Software, as well as discover the online magnetic field calculators | Open resource |
Tags
- doc/noaa/nesdis/ncei
- doc/noaa/nesdis/ngdc
- earth science
- geographic region
- geomagnetism
- global
- magnetic declination
- magnetic field
- magnetic inclination
- magnetic intensity
- national centers for environmental information
- national geophysical data center
- nesdis
- noaa
- solid earth
- u.s. department of commerce