Declination CalculatorBack to Collection NOAA/NESDIS/NGDC/MGG/Geophysical_Models
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Declination Calculator
browse graphicDeclination is calculated using the current International Geomagnetic Reference Field (IGRF) model. Declination is calculated using the current World Magnetic Model (WMM) or International Geomagnetic Reference Field (IGRF) model. While results are ty (...etc)

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AccessFormat(s)Distributor(s) / Contact InfoInstructions / Constraints
HTML Format
Format version: 1
Format specification: The Declination Calculator creates an HTML pop-up window which superimposes a compass rose, indicating the declination, onto the location queried and reports the annual change in declination.
XML Format
Format version: 1
Format specification: The Declination Calculator creates an XML file which reports the location and date queried as well as the declination and the annual change in declination in decimal minutes per year.
CSV Format
Format version: 1
Format specification: The Declination Calculator creates an Comma Seperated Variable (CSV) file which reports the location and date queried as well as the declination and the annual change in declination in decimal minutes per year.
PDF Format
Format version: 1
Format specification: The Declination Calculator creates a Portable Document Format file (PDF) file which reports the location and date queried as well as the declination and the annual change in declination in decimal minutes per year.
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
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Use Limitation
Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.

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Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions (...etc)