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Earth Magnetic Anomaly Grid (EMAG2-v3) public map API announcement
ManojNair([email protected])NCEI/Univ.ofColorado
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EarthMagneticAnomalyGrid(EMAG2v3)
Largest, open compilation of magnetic survey data
Marine and airborne tracklinessurveys
Precompiled grids over continental areas
Satellite derived models
Meyer, B., Chulliat, A., & Saltus, R. (2017). Derivation and error analysis of the earth magnetic anomaly grid at 2 arc min resolution version 3 (EMAG2v3). Geochemistry, Geophysics, Geosystems, 18, 4522–4537. https://doi.org/10.1002/2017GC007280
https://www.ngdc.noaa.gov/geomag/emag2.html
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EMAG2v3 webmapservice
https://www.ngdc.noaa.gov/geomag/emag2.html
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Base URL: https://noaa.maps.arcgis.com/apps/webappviewer/index.html?id=6717e58b755b41298dc623d8fdc967dc
Longitude and latitude coding : marker=-105,40
Zoom: level=8
Example: https://noaa.maps.arcgis.com/apps/webappviewer/index.html?id=6717e58b755b41298dc623d8fdc967dc&level=8&marker=-105,40
MapAPIforsoftwareintegration
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https://gis.ngdc.noaa.gov/arcgis/rest/services/EMAG2v3/ImageServer/getSamples?geometryTrype=esriGeometryPoint&geometry={"x":%20-105,%20"y":%2040,%20"spatialReference":{"wkid":4326}}
MapAPIfordataextraction
Example API call
This returns the values in html or JSON format
Questions? [email protected]