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International Geomagnetic Reference Field - 11th Generation

browse graphicIAGA Division V-MOD Header
The eleventh generation of the International Geomagnetic Reference Field (IGRF) was adopted in December 2009 by the International Association of Geomagnetism and Aeronomy Working Group V-MOD. It updates the previous IGRF generation with a definitive main field model for epoch 2005.0, a main field model for epoch 2010.0, and a linear predictive secular variation meodel for 2010.0-2015.0.

Cite as: International Association of Geomagnetism and Aeronomy (2010): International Geomagnetic Reference Field - 11th Generation. National Geophysical Data Center, NOAA. doi:10.7289/V58050JN [access date]

Search and Download
Distribution Formats
  • Geomag 7.0 for Windows (Version: 7)
  • Geomag 7.0 for Linux (Version: 7)
  • IGRF-11 Fortran Source Code (Version: 1)
  • IGRF-11 Coeffiecients as Text (Version: 1)
  • IGRF-11 Coeffiecients as Excel Spreadsheet (Version: 1)
Distributor DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Point of Contact NGDC Geomagnetic Modeling Team
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
geomag.models@noaa.gov
Documentation links not available.
Originator
  • International Association of Geomagnetism and Aeronomy (IAGA)
Publisher
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Date(s)
  • publication: 2010-09-03
Edition: 11
Data Presentation Form: mapDigital
Dataset Progress Status Complete
Data Update Frequency: As needed  -  This model is updated by IAGA every 5 years
Purpose: Purpose statement not available
Time Period: 1900-01-01  to  2014-12-31
Spatial Reference System: urn:ogc:def:crs:EPSG::4326
Spatial Bounding Box Coordinates:
N: 90
S: -90
E: 180
W: -180
Spatial Coverage Map:
Themes
  • 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
  • EARTH SCIENCE > Solid Earth > Geomagnetism > Reference Fields
Data Centers
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Places
  • Geographic Region > Global
Use Constraints
  • Cite as: International Association of Geomagnetism and Aeronomy (2010): International Geomagnetic Reference Field - 11th Generation. National Geophysical Data Center, NOAA. doi:10.7289/V58050JN [access date]
Fees
  • None
Source Datasets
  • CHAMP Satellite Data
  • ORSTED Satellite Data
  • INTERMAGNET Observatory Data
Lineage Statement Lineage statement not available.
Processor
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Processing Steps
  • Seven teams from the IAGA V-MOD group created independent candidate models for the IGRF-11. The models used the same datasets from satellites and land observatories with different criteria, filters, and processing steps. The various candidate models and their descriptions can be found at http://www.ngdc.noaa.gov/IAGA/vmod/candidatemodels.html
  • The seven models were tested, evaluated, and compared by C.C. Finlay et al. The final model was calculated using weighted means of the candidates. The weights were agreed by a vote of the IGRF-11 task force.

Metadata Last Modified: 2014-05-29

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