World Magnetic Model 2015

Metadata Updated: September 26, 2015

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, 2019. The current model WMM2015 is produced jointly by the NGDC and the British Geological Survey (BGS). The model, associated software, and documentation are distributed by NGDC on behalf of US National Geospatial-Intelligence Agency and by BGS on behalf of UK Defence Geographic Centre.

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Metadata Date August 31, 2015
Metadata Created Date September 26, 2015
Metadata Updated Date September 26, 2015
Reference Date(s) December 15, 2014 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOAA CSW Harvest Source

Graphic Preview

Declination contour map in mercator projection

Additional Metadata

Resource Type Model
Metadata Date August 31, 2015
Metadata Created Date September 26, 2015
Metadata Updated Date September 26, 2015
Reference Date(s) December 15, 2014 (publication)
Responsible Party DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
Contact Email
Access Constraints Cite as: Chulliat, A., S. Macmillan, P. Alken, C. Beggan, M. Nair, B. Hamilton, A. Woods, V. Ridley, S. Maus and A. Thomson, 2014. The US/UK World Magnetic Model for 2015-2020, NOAA National Geophysical Data Center, Boulder, CO, doi: 10.7289/V5TH8JNW [access date].
Bbox East Long 180
Bbox North Lat 90
Bbox South Lat -90
Bbox West Long -180
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description Declination contour map in mercator projection
Graphic Preview File
Graphic Preview Type PNG
Guid gov.noaa.ngdc:WMM2015
Harvest Object Id 9f40d1dc-137f-45ff-9e31-f67576048437
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence 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., Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System urn:ogc:def:crs:EPSG::4326
Spatial Harvester True
Temporal Extent Begin 2015-01-01
Temporal Extent End 2019-12-31

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