gov.noaa.ngdc.mgg.geophysical_models:EMM2010
model
Magnetic Grid
NOAA National Centers for Environmental Information
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information
pointOfContact
2020-05-14
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
2
point
true
World Geodetic System 1984
WGS 84
2007-08-27
revision
https://epsg.org/crs_4326/WGS-84.html
WGS 84
GML of World Geodetic System 1984 coordinate reference system.
information
resourceProvider
European Petroleum Survey Group
https://epsg.org/home.html
European Petroleum Survey Group Geodetic Parameter Registry
Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations.
search
publisher
urn:ogc:def:crs:EPSG::4326
Enhanced Magnetic Model 2010
2009-12-15
publication
3
2014-04-08
NOAA National Centers for Environmental Information
NCEI Metadata ID: gov.noaa.ngdc.mgg.geophysical_models:EMM2010
NOAA National Centers for Environmental Information
publisher
NCEI Geomagnetic Modeling Team
author
mapDigital
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.
Magnetic anomaly maps provide insight into the subsurface structure and composition of the Earth's crust. Over continental areas, magnetic anomalies illuminate geologic, tectonic, and geothermal evolution of crust and lithosphere. In the world's oceans, anomalies trending parallel to the isochrons (lines of equal age) reveal the temporal evolution of oceanic crust. Magnetic maps are widely used in the geological sciences and in resource exploration.
completed
historicalArchive
NOAA National Centers for Environmental Information
ncei.info@noaa.gov
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NCEI Contact Information
Information for contacts at NCEI.
information
pointOfContact
NOAA National Centers for Environmental Information
NCEI Geomagnetic Modeling Team
geomag.models@noaa.gov
pointOfContact
asNeeded
https://www.ngdc.noaa.gov/geomag/EMM/img/dec_WMM_EMM.jpg
Declination Comparison of WMM and EMM
JPG
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 > Magnetic Anomalies
theme
Global Change Master Directory (GCMD) Science Keywords
2020-01-09
publication
9.1
NASA Goddard Space Flight Center, Earth Science Data and Information System
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Global Change Master Directory (GCMD) Keywords
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.
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Geographic Region > Global
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2020-01-09
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9.1
NASA Goddard Space Flight Center, Earth Science Data and Information System
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DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
dataCentre
Global Change Master Directory (GCMD) Data Center Keywords
2020-01-09
publication
9.1
NASA Goddard Space Flight Center, Earth Science Data and Information System
https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
Global Change Master Directory (GCMD) Keywords
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.
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custodian
otherRestrictions
Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
otherRestrictions
Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States.
otherRestrictions
Cite as: NCEI Geomagnetic Modeling Team. 2009: Enhanced Magnetic Model 2010. 3. NOAA National Centers for Environmental Information. Accessed [date].
grid
eng; USA
geoscientificInformation
-180
180
-90
90
2000-01-01
2014-12-31
Grid Cell
modelResult
Northerly Intensity
42000
-17000
nanoTesla
Easterly Intensity
17000
-18000
nanoTesla
Vertical Intensity
61000
-67000
nanoTesla
Horizontal Intensity
42000
00
nanoTesla
Total Intensity
67000
22000
nanoTesla
Inclination
90
-90
degree
Declination
90
-90
degree
Grid Variation
180
-180
degree
NOAA National Centers for Environmental Information
ncei.info@noaa.gov
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distributor
In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Contact NCEI for other distribution options and instructions.
EMM2010_Sph_Windows_Linux.zip
4
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.
EMM2010_Mesh_Windows_Linux.zip
3
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.
EMM2010_Dec-15-09.zip
1
Enhanced Magnetic Model (EMM2010) with software for point and grid calculation.
EMM-720_V3p0.tar.gz
3
Enhanced Magnetic Model with software for rapid field calculation using 3D mesh interpolation.
EMM-720_V3p0_static.cof.gz
3
Enhanced Magnetic Model. Spherical Harmonic Coefficients of the static internal field at 2010.0.
EMM-720_V3p0_secvar.cof.gz
3
Enhanced Magnetic Model. Spherical Harmonic Coefficients of the estimated secular variation 2010-2015.
EMM-06.tar.gz
3
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.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ngdc.mgg.geophysical_models:EMM2010/html
HTTPS
Metadata Landing Page
information
https://www.ngdc.noaa.gov/geomag/EMM/index.html
HTTPS
EMM Home Page
information
https://www.ngdc.noaa.gov/geomag/EMM/EMMSurveySPH.shtml
EMM2010_Sph_Windows_Linux.zip
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.
download
https://www.ngdc.noaa.gov/geomag/EMM/EMMSurveyMesh.shtml
EMM2010_Mesh_Windows_Linux.zip
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.
download
https://www.ngdc.noaa.gov/geomag/EMM/EMMSurvey2009.shtml
EMM2010_Dec-15-09.zip
Enhanced Magnetic Model (EMM2010) with software for point and grid calculation.
download
https://www.ngdc.noaa.gov/geomag/EMM/EMMSurveyV3p0.shtml
EMM-720_V3p0.tar.gz
Enhanced Magnetic Model with software for rapid field calculation using 3D mesh interpolation.
download
https://www.ngdc.noaa.gov/geomag/EMM/data/geomag/EMM-720_V3p0_static.cof.gz
EMM-720_V3p0_static.cof.gz
Enhanced Magnetic Model. Spherical Harmonic Coefficients of the static internal field at 2010.0.
download
https://www.ngdc.noaa.gov/geomag/EMM/data/geomag/EMM-720_V3p0_secvar.cof.gz
EMM-720_V3p0_secvar.cof.gz
Enhanced Magnetic Model. Spherical Harmonic Coefficients of the estimated secular variation 2010-2015.
download
https://www.ngdc.noaa.gov/geomag/EMM/EMMSurvey2006.shtml
EMM-06.tar.gz
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.
download
repository
NOAA National Centers for Environmental Information
NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
2015-04-22T00:00:00
dataset
Measurements during daytime and during periods of strong solar activity are contaminated by external current systems, which are difficult to accurately model. Therefore, only nighttime data during magnetically quiet periods were used in estimating the WMM coefficients.
NOAA National Centers for Environmental Information
Geomagnetic Modeling Team
geomag.models@noaa.gov
http://www.ngdc.noaa.gov/geomag/
processor
Processing steps were carried out collectively by the developers of the model. These developers are listed as authors of the associated paper "The US/UK Magnetic Model 2010-2015".
The US/UK World Magnetic Model for 2010-2015
2009-12-01
publication
https://ngdc.noaa.gov/geomag/WMM/data/WMM2010/WMM2010_Report.pdf
originator
Refer to technical report, "The US/UK Magnetic Model 2010-2015", for description of gridding algorithms.
Some contributions to the measured magnetic field, such as the diamagnetic effect of ionospheric plasma (Lühr et al, 2003) or motional induction by tidal ocean currents (Kuvshinov and Olsen, 2005; Maus, 2007), can be accurately modeled and were corrected for prior to the estimation of the WMM main field coefficients.
NOAA National Centers for Environmental Information
Geomagnetic Modeling Team
geomag.models@noaa.gov
http://www.ngdc.noaa.gov/geomag/
processor
Processing steps were carried out collectively by the developers of the model. These developers are listed as authors of the associated paper "The US/UK Magnetic Model 2010-2015".
The US/UK World Magnetic Model for 2010-2015
2009-12-01
publication
https://ngdc.noaa.gov/geomag/WMM/data/WMM2010/WMM2010_Report.pdf
originator
Refer to technical report, "The US/UK Magnetic Model 2010-2015", for description of gridding algorithms.
To account for the contributions that have not been removed in the previous steps, an extended set of model parameters is co-estimated with the WMM model coefficients. These account for smaller-wavelength internal magnetic field contributions (spherical harmonic degree larger than 12), second time derivatives (secular acceleration) and contributions from currents external to the Earth. The set of WMM coefficients plus the extended model parameters is called a parent model of the WMM. Two different parent models were produced, reflecting different modeling strategies employed by NGDC for the main field model and BGS for the secular variation model.
NOAA National Centers for Environmental Information
Geomagnetic Modeling Team
geomag.models@noaa.gov
http://www.ngdc.noaa.gov/geomag/
processor
Processing steps were carried out collectively by the developers of the model. These developers are listed as authors of the associated paper "The US/UK Magnetic Model 2010-2015" which can be found at https://www.ngdc.noaa.gov/geomag/WMM/data/WMM2010/WMM2010_Report.pdf
The US/UK World Magnetic Model for 2010-2015
2009-12-01
publication
https://ngdc.noaa.gov/geomag/WMM/data/WMM2010/WMM2010_Report.pdf
originator
Refer to technical report, "The US/UK Magnetic Model 2010-2015", for description of gridding algorithms.
Satellite, marine, and aeromagnetic measurements were compiled into an ellipsoidal degree-720 magnetic model of the Earth's lithosphere. This model accurately represents the crustal field down to wavelengths of approximately 56 kilometers. This results in a higher pointing accuracy.
NOAA National Centers for Environmental Information
Geomagnetic Modeling Team
geomag.models@noaa.gov
http://www.ngdc.noaa.gov/geomag/
processor
Processing steps were carried out collectively by the developers of the model. These developers are listed as authors of the associated paper "An ellipsoidal harmonic representation of Earth's lithospheric magnetic field to degree and order 720".
An ellipsoidal harmonic representation of Earth's lithospheric magnetic field to degree and order 720
2010-03-25
creation
http://geomag.colorado.edu/images/PublicationsPDFs/ngdc720.pdf
originator
Refer to technical report, "An ellipsoidal harmonic representation of Earth's lithospheric magnetic field to degree and order 720", for description of gridding algorithms.
Challenging Minisatellite Payload (CHAMP) is a German satellite mission dedicated to improving gravity and magnetic field models of the Earth.
CHAMP Satellite Data
2009-12-31
publication
GFZ German Research Centre for Geosciences
http://op.gfz-potsdam.de/champ/
The CHAMP Mission
Webpage provided details on equipment, mission, as well as results and publications associated with the CHAMP mission.
information
originator
-180
180
-90
90
2000-07-15
2010-09-19
The Danish satellite Orsted is a dedicated satellite for geomagnetic field modeling.
ORSTED Satellite Data
2009-12-31
publication
Danish Meteorological Institute
http://www.space.dtu.dk/english/Research/Projects/Oersted
The Orsted Satellite Project
Webpage provided details on equipment, mission, as well as results and publications associated with the Orsted satellite mission.
information
originator
-180
180
-90
90
1999-02-23
2009-11-30
Magnetics information that is collected at permanent surface magnetic observatories spread across the globe.
INTERMAGNET Observatory Data
2009-12-31
publication
International Real-time Magnetic Observatory Network
http://www.intermagnet.org
INTERMAGNET Program
Website provides information on participating institutions, observatory locations, and publications associated with the network of observatories.
information
originator
-177.383
172.35
-77.85
82.5
Trackline magnetics observations hosted on GEODAS at the National Geophysical Data Center (NGDC).
GEODAS magnetic data
2013-02-06
revision
Brian Meyer
NOAA National Centers for Environmental Information
303-497-6125
Brian.Meyer@noaa.gov
pointOfContact
-180
180
-90
90
asNeeded
Modified for compliance to NCEI Template v1.2.