Enhanced Magnetic Model 2010

Description

The Enhanced Magnetic Model (EMM) extends to degree and order 720, resolving magnetic anomalies down to 56 km wavelength. The higher resolution of the EMM results in significantly improved pointing accuracy than the World Magnetic Model (WMM), which uses spherical harmonic representation to degree and order 12, resolving the magnetic field at 3000 km wavelength. The EMM model provides the magnetic field vector at any desired location and altitude close to and above the Earth's surface.

Resources

Name Format Description Link
21 index.html https://www.ngdc.noaa.gov/geomag/EMM/index.html
21 Enhanced Magnetic Model (EMM2010) with software for point and grid calculation. https://www.ngdc.noaa.gov/geomag/EMM/EMMSurvey2009.shtml
21 Enhanced Magnetic Model with software for rapid field calculation using 3D mesh interpolation. https://www.ngdc.noaa.gov/geomag/EMM/EMMSurveyV3p0.shtml
0 Enhanced Magnetic Model. Spherical Harmonic Coefficients of the static internal field at 2010.0. https://www.ngdc.noaa.gov/geomag/EMM/data/geomag/EMM-720_V3p0_static.cof.gz
0 Enhanced Magnetic Model. Spherical Harmonic Coefficients of the estimated secular variation 2010-2015. https://www.ngdc.noaa.gov/geomag/EMM/data/geomag/EMM-720_V3p0_secvar.cof.gz
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
0 https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ngdc.mgg.geophysical_models:EMM2010/html
21 Enhanced Magnetic Model (EMM2010) and software using the spherical harmonic approach for Windows and Linux environments. High CPU requirements (use the faster Mesh software for large number of points), very low RAM requirement (7.5 MB). For use with years 2000 to 2015. https://www.ngdc.noaa.gov/geomag/EMM/EMMSurveySPH.shtml
21 Enhanced Magnetic Model (EMM2010) with software with rapid field calculation using 3D mesh interpolation for Windows and Linux environments. Low CPU requirements, High (1.4 GB) RAM requirement. Only works for years 2010-2015, for 2000-2010 please download the spherical harmonic version above. https://www.ngdc.noaa.gov/geomag/EMM/EMMSurveyMesh.shtml
21 Software for the Enhanced Magnetic Model (EMM-06), including main field, secular variation, NGDC-720-V1 crustal field, magnetospheric field, and induced field. The package includes a simple single-point program and a thread-safe multi-processor application which can be adapted to produce large grids and time series. https://www.ngdc.noaa.gov/geomag/EMM/EMMSurvey2006.shtml

Tags

  • magnetic declination
  • nesdis
  • magnetic field
  • magnetic inclination
  • national geophysical data center
  • noaa
  • global
  • magnetic anomalies
  • u.s. department of commerce
  • earth science
  • geographic region
  • magnetic intensity
  • doc/noaa/nesdis/ngdc
  • solid earth
  • doc/noaa/nesdis/ncei
  • geomagnetism
  • national centers for environmental information

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