Magnetic Field Calculator
The Magnetic Field Calculator will calculate the total magnetic field, including components
(declination, inclination, horizontal intensity, northerly intensity, easterly intensity,
vertical intensity) and the annual change for each. Each calculation is for a specific
location, elevation and date or range of dates. The calculated result can be obtained
from two separate geomagnetic models, the IGRF11 or the WMM2010. Declination is calculated
using the current World Magnetic Model (WMM) or International Geomagnetic Reference
Field (IGRF) model. While results are typically accurate to 30 minutes of arc, users
should be aware that several environmental factors can cause disturbances in the magnetic
field.
- Cite as: NCEI Geomagnetic Modeling Team. 2009: Magnetic Field Calculator. NOAA National Centers for Environmental Information. Accessed [date].
- NCEI Metadata ID: gov.noaa.ngdc.mgg.geophysical_models:Magnetic_Field_Calculator
gov.noaa.ngdc.mgg.geophysical_models:Magnetic_Field_Calculator
Distribution Formats |
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor | NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact | NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact | NCEI Geomagnetic Modeling Team NOAA National Centers for Environmental Information geomag.models@noaa.gov |
Time Period | 1900-01-01 to 2014-12-31 |
Spatial Reference System | urn:ogc:def:crs:EPSG::4326 |
Spatial Bounding Box Coordinates |
West:-180
East:180
South:-90
North:90
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Spatial Coverage Map |
General Documentation |
Publication Dates |
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Data Presentation Form | mapDigital |
Dataset Progress Status | Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility |
Data Update Frequency | As needed |
Purpose | The purpose of the calculators is to deliver trusted magnetic field values - past, present, and near future - to aid the public as well as the scientific community in proper navigation, positioning, and other operational and research magnetic field scenarios. |
Use Limitations |
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Dataset Citation |
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Cited Authors |
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Publishers |
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Theme keywords | Global Change Master Directory (GCMD) Science Keywords
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Data Center keywords | Global Change Master Directory (GCMD) Data Center Keywords
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Place keywords | Global Change Master Directory (GCMD) Location Keywords
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Use Constraints |
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Access Constraints |
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Other Constraints | Cite as: NCEI Geomagnetic Modeling Team. 2009: Magnetic Field Calculator. NOAA National Centers for Environmental Information. Accessed [date]. |
Fees |
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Processing Steps |
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Last Modified: 2020-05-14
For questions about the information on this page, please email:ncei.info@noaa.gov