Earth Magnetic Anomaly Grid (EMAG2- v3) Public Map API Announcement
- Largest, open compilation of magnetic survey data
- Marine and airborne tracklines surveys
- Precompiled grids over continental areas
- Satellite derived models
Map API for software integration
- Base URL: https://noaa.maps.arcgis.com/apps/web appviewer/index.html?id=6717e58b755b 41298dc623d8fdc967dc
- Longitude and latitude coding : marker=- 105,40
- Zoom: level=8
- Example: https://noaa.maps.arcgis.com/apps/webappviewer/index.html?id=6717e58b755b41298dc623d8fdc9 67dc&level=8&marker=-105,40
Map API for data extraction
- Example API call
- https://gis.ngdc.noaa.gov/arcgis/rest/servic es/EMAG2v3/ImageServer/getSamples?ge ometryTrype=esriGeometryPoint&geometr y={"x":%20- 105,%20"y":%2040,%20"spatialReference" :{"wkid":4326}}
- This returns the values in html or JSON format
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Earth Magnetic Anomaly Grid (EMAG2- v3) Public Map API Announcement
Manoj Nair