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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]

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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
Use Limitations
  • 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.
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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