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Magnetic declination - Wikipedia

en.wikipedia.org/wiki/Magnetic_declination

Magnetic declination or variation is the angle on the horizontal plane between magnetic north ..... The GPS receiver natively reads in true north, but can elegantly calculate magnetic north based on...

Magnetic Declination (Variation) | NCEI

www.ngdc.noaa.gov/geomag/declination.shtml

Magnetic declination, sometimes called magnetic variation, is the angle between magnetic north and true north. Declination is positive east of true north and ...

Magnetic Field Calculators

www.ngdc.noaa.gov/geomag-web/

Declination is calculated using the most recent World Magnetic Model (WMM) or the International Geomagnetic Reference Field (IGRF) model. For 1590 to 1900 ...

Magnetic declination calculator

geomag.nrcan.gc.ca/calc/mdcal-en.php

Apr 13, 2015 ... Date. The range of dates permitted with the International Geomagnetic Reference Field (IGRF-12) ranges from 1900 and 2020.

Find Your Declination Adjustment Value - Compass Store

www.thecompassstore.com/decvar.html

Magnetic declination adjustment values are easy to determine with these helpful map charts and page links.

Magnetic Declination

www.magnetic-declination.com/

Mountain View California Latitude: 37° 24' 21.6" N Longitude: 122° 4' 42.7" W Magnetic declination: +13° 28' Declination is POSITIVE (EAST) Inclination: 60° 58'

Declination Adjustment on a Compass - REI Expert Advice - REI.com

www.rei.com/learn/expert-advice/compass-declination.html

Jul 27, 2016 ... What's the difference between magnetic north and true north? Learn the basics of declination adjustment on a compass with this article.

Magnetic Variation | Official OpenCPN Homepage

opencpn.org/magnetic-variation

Magnetic variation, or magnetic declination, is shown on paper and raster charts, but can also be calculated using the World Magnetic Model. C source code for ...

Full text of "United States Magnetic Declination Tables and Isogonic ...

www.archive.org/stream/unitedstatesmag01bauegoog/unitedstatesmag01bauegoog_djvu.txt

102 The Magnetic Declination in the United States and Outlying Territories for January i, 1902. Introduction 117 Explanatory^ Remarks to Declination Tables 117 ...

Magnetic Declination - Compass Dude

www.compassdude.com/compass-declination.php

Learn about magnetic declination effecting compass directions.