| Other author/creator | United States. National Geospatial-Intelligence Agency, issuing body. |
| Other author/creator | Great Britain. Defence Geographic Centre, issuing body. |
| Other author/creator | National Centers for Environmental Information (U.S.) |
| Other author/creator | British Geological Survey. |
| Variant title |
WMM |
| Frequency | Updated every five years |
| Abstract |
"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." |
| General note | "The World Magnetic Model is a joint product of the United States' National Geospatial-Intelligence Agency (NGA) and the United Kingdom's Defence Geographic Centre (DGC). The WMM was developed jointly by the National Geophysical Data Center (NGDC, Boulder CO, USA) (now the National Centers for Environmental Information (NCEI)) and the British Geological Survey (BGS, Edinburgh, Scotland)." |
| General note | CRDP Program record. |
| Source of description | Description based on contents viewed Feb. 5, 2019; title from HTML caption. |
| LCCN | 2019230424 |
| GPO item number | 0379-A-17 (online) |
| Govt. docs number |
D 5.364: |
