Variation for the current day.
Used in navigation with a magnetic compass.
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Variation is the angle between the magnetic and geographic meridians at any place, expressed in degrees east or west to indicate the direction of magnetic north from true north. Called MAGNETIC VARIATION when a distinction is needed to prevent possible ambiguity. Also called MAGNETIC DECLINATION. (Bowditch)

The app uses the World Magnetic Model: WMM2020.
The new model is valid from 10/12/ 2019 through 31/12/2024.
See: https://www.ngdc.noaa.gov/geomag/WMM/DoDWMM.shtml

User interface:
- Zoom buttons +/-
- Map types: normal, terrain and satellite
- GPS location. ("Location" App permission must be allowed. Switch on you GPS, and then automatic location detection is possible)

Events on Map:
• Long Click: adds a mark with the variation at position for the current day.
• Tap the Mark to see the information.
• Map gestures: https://developers.google.com/maps/documentation/android-sdk/controls
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What's New

WMM2020 - World Magnetic Model 2020, valid from 10/12/ 2019 through 31/12/2024.
Android 10.0 update
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Additional Information

Updated
December 11, 2019
Size
1.6M
Installs
10,000+
Current Version
4.0
Requires Android
4.0 and up
Content Rating
Everyone
Permissions
Offered By
Navigational Algorithms
Developer
Navigational Algorithms navigationalalgorithms@gmail.com San Sebastian Gipuzkoa Spain
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