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Find the magnetic declination. at your location. + - Leaflet | Esri. Sites of Interest. Cosmos Plus! Live Meteors. Satellite tracking. Radio Astronomy.
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This free utility will generate a PNG or SVG file representing a properly formatted declination diagram for a specific map. Background. In cartography, a declination diagram is used to provide a graphic representation of the variations between true north, grid north, and magnetic north on a map.
Magnetic declination (variation) calculator based on the IGRF magnetic field model. Estimates magnetic delination world-wide from 1900 - present.
Maps of Magnetic Elements from the WMM2020. Contour maps were created for each of the seven magnetic elements (D, I, H, X, Y, Z, and F) and for their secular variation (rate of change).
28 mar 2016 · Magnetic declination —the angle between magnetic North and true North—at a given location also changes over time. Our Historical Magnetic Declination Map Viewer displays locations of the geomagnetic poles and historical declination lines calculated for the years 1590–2020.
This page allows you to look up current values for Magnetic Declination and Grid Varience for any location. Then you can see what changes as you select various combination of north references to use on your maps and with your compass.
The difference between true north and magnetic north is called magnetic declination or magnetic variation. Some sources also erroneously refer to it as magnetic deviation. It's essential to take this phenomenon into account when navigating with a compass.