EMAG2v3: Earth Magnetic Anomaly Grid (2-arc-minute resolution)
Access & Use Information
Downloads & Resources
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Metadata Landing Page
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Home PageHTML
emag2.html
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EMAG2v3 ASCII CSV data fileZIP
Zip file containing the comma delimited ASCII grid that contains i and j grid...
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EMAG2v3 Format DescriptionTEXT
ASCII text file that contains format description of the EMAG2v3 CSV data file.
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EMAG2v3 Full Resolution Map of Upward...PNG
PNG of EMAG2v3 as a poster at a consistent 4km altitude.
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EMAG2v3 Full Resolution Map of Sea Level AnomaliesPNG
PNG of EMAG2v3 as a poster at sea level over oceanic regions.
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Upward Continued Google Earth ImageKML
KMZ plugin for Google Earth of EMAG2v3 as a poster at a consistent 4km...
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Upward Continued GIS TIFFTIFF
A georeferenced TIFF (GeoTIFF) for EMAG2v3, where the altitude is at a...
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Sea Level GIS TIFFTIFF
A georeferenced TIFF (GeoTIFF) for EMAG2v3, where the altitude is at sea...
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Map of Source Grid CodesPNG
PNG of EMAG2v3 codes to designate which grid is primarily responsible for the...
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Map of Estimated Error ValuesPNG
PNG of EMAG2v3 estimates of the error in nanoTesla for each cell.
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NCEI Contact Information
Information for contacts at NCEI.
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Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords...
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Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords...
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Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords...
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Derivation and Error Analysis of the Earth...
A science paper about the construction and evaluation of the Earth Magnetic...
Dates
Metadata Date | May 14, 2020 |
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Metadata Created Date | November 12, 2020 |
Metadata Updated Date | November 12, 2020 |
Reference Date(s) | May 30, 2017 (publication) |
Frequency Of Update | asNeeded |
Metadata Source
- ISO-19139 ISO-19139 Metadata
Harvested from NGDC MGG Geophysical Models
Graphic Preview

Additional Metadata
Resource Type | Dataset |
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Metadata Date | May 14, 2020 |
Metadata Created Date | November 12, 2020 |
Metadata Updated Date | November 12, 2020 |
Reference Date(s) | May 30, 2017 (publication) |
Responsible Party | NOAA National Centers for Environmental Information (Point of Contact) |
Contact Email | |
Guid | gov.noaa.ngdc.mgg.geophysical_models:EMAG2_V3 |
Access Constraints | 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., 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., Cite as: Brian Meyer; Richard Saltus; and Arnaud Chulliat. 2017: EMAG2v3: Earth Magnetic Anomaly Grid (2-arc-minute resolution). Version 3. NOAA National Centers for Environmental Information. https://doi.org/10.7289/V5H70CVX. Accessed [date]. |
Bbox East Long | 360 |
Bbox North Lat | 90 |
Bbox South Lat | -90 |
Bbox West Long | 0 |
Coupled Resource | |
Frequency Of Update | asNeeded |
Graphic Preview Description | EMAG2v3 showing the west coast of the United States and Canada. The stripes are magnetic lineations due to sea-floor spreading. |
Graphic Preview File | http://www.ngdc.noaa.gov/geomag/image/EMAG2_V3_UpCont_WestCoastUS.png |
Graphic Preview Type | png |
Harvest Object Id | 2988b812-f148-405c-b9a9-68a3c74d2571 |
Harvest Source Id | 5ed471dc-74d7-4fff-9550-9d3d373a7a15 |
Harvest Source Title | NGDC MGG Geophysical Models |
Licence | Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States., Not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For navigation, please refer to the NOS nautical chart series. |
Metadata Language | |
Metadata Type | geospatial |
Progress | completed |
Spatial Data Service Type | |
Spatial Reference System | urn:ogc:def:crs:EPSG::4326 |
Spatial Harvester | True |
Temporal Extent Begin | 1946-01-01 |
Temporal Extent End | 2014-02-20 |
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