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Magnetic declination (variation) calculator based on the IGRF magnetic field model. Estimates magnetic delination world-wide from 1900 - present.
- CrowdMag
CrowdMag’s magnetic calculator provides magnetic variation...
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Launch Grid Calculator. Declination Calculator. This web...
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The geomagnetic models behind these calculators are...
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About. Geomagnetic field models can also define geomagnetic...
- Data
Chętnie wyświetlilibyśmy opis, ale witryna, którą oglądasz,...
- FAQ
The compass points in the directions of the horizontal...
- All Geomagnetism
Geomagnetism is one of the oldest geophysical sciences....
- About Geomagnetism
These are declination (D), inclination (I), horizontal...
- CrowdMag
26 maj 2024 · Our calculator will help you find the magnetic declination for your specific location and date. A positive declination (+D) means that your compass will point east of north. A negative declination (-D) means that your compass will point west of north.
Declination results are typically accurate to 30 minutes of arc, but environmental factors can cause magnetic field disturbances. The calculator provides an easy way for you to get results in HTML, XML, CSV, or JSON programmatically (API). Registration is required to access this service.
Calculates true, magnetic and compass direction (course, bearing) by a given direction, magnetic declination and deviation.
2 lip 2022 · Choose the geodetic latitude and longitude either by entering the coordinates into the form below (decimal degrees may be entered into the 'degrees' field, and degrees S or W should be entered with a negative sign), or by simply clicking the location on the map.
Click on the map to find the magnetic declination at your location
18 wrz 2023 · Enter the declination at the start of the year, the annual change in declination, and the number of years since the start of the year into the calculator to determine the magnetic variation. This calculator can also evaluate any of the variables given the others are known.