Geomagnetic latitude: Difference between revisions
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{{Short description|Parameter defined by the axis of the geomagnetic dipole}} |
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{{Unreferenced stub|auto=yes|date=December 2009}} |
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'''Geomagnetic latitude''', or '''magnetic latitude''' ('''MLAT'''), is a parameter analogous to [[latitude|geographic latitude]], except that, instead of being defined relative to the [[geographic poles]], it is defined by the axis of the [[dipole model of the Earth's magnetic field|geomagnetic dipole]], which can be accurately extracted from the [[International Geomagnetic Reference Field]] (IGRF).<ref name="VanZandt">{{cite journal |last = VanZandt |first = T. E. |author2 = W. L. Clark |author3 = J. M. Warnock |title = Magnetic apex coordinates: A magnetic coordinate system for the ionospheric F2 layer |journal = J. Geophys. Res. |volume = 77 |issue = 13 |pages = 2406–2411 |date = 1972 |doi = 10.1029/JA077i013p02406 }}</ref> Further, Magnetic Local Time (MLT) is the geomagnetic dipole equivalent to geographic longitude.<ref>{{Cite web |title=Corrected Geomagnetic Coordinates Description |url=https://omniweb.gsfc.nasa.gov/vitmo/cgmm_des.html |access-date=2024-10-18 |website=omniweb.gsfc.nasa.gov}}</ref> |
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'''Geomagnetic latitude''' is a parameter analogous to [[latitude|geographic latitude]], except that bearing is with respect to the [[poles of astronomical bodies#Magnetic poles|magnetic poles]], as opposed to the [[geographic poles]]. |
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An approximation of magnetic latitude may be made with the [[dipole model of the Earth's magnetic field]], or a more accurate measure may be made with the [[International Geomagnetic Reference Model]]. |
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==See also== |
==See also== |
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* [[Earth's magnetic field]] |
* [[Earth's magnetic field]] |
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* [[Geomagnetic equator]] |
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* [[Dipole model of the Earth's magnetic field]] |
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* [[Ionosphere]] |
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* [[L-shell]] |
* [[L-shell]] |
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* [[Magnetosphere]] |
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* [[World Magnetic Model]] (WMM) |
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==References== |
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{{reflist}} |
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==External links== |
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* [https://spawx.nwra.com/spawx/maps/maplats.html Space Weather: Maps of Geomagnetic Latitude] (Northwest Research Associates) |
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* [https://www.swpc.noaa.gov/content/tips-viewing-aurora Tips on Viewing the Aurora] ([[Space Weather Prediction Center|SWPC]]) |
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* [https://www.ngdc.noaa.gov/geomag/calculators/magcalc.shtml Magnetic Field Calculator] ([[National Centers for Environmental Information|NCEI]]) |
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* [https://www.jstage.jst.go.jp/article/jgg1949/47/2/47_2_191/_article/-char/ja/ Ionospheric Electrodynamics Using Magnetic Apex Coordinates] ([[Journal of Geomagnetism and Geoelectricity]]) |
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{{Atmospheric electricity}} |
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{{Geophysics navbox}} |
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{{magnetospherics}} |
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{{geographical coordinates|state=collapsed}} |
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{{Map projection}} |
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{{DEFAULTSORT:Geomagnetic Latitude}} |
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[[Category:Geomagnetism]] |
[[Category:Geomagnetism]] |
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[[Category:Geographic coordinate systems]] |
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{{Geophysics-stub}} |
{{Geophysics-stub}} |
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Latest revision as of 14:48, 18 October 2024
Geomagnetic latitude, or magnetic latitude (MLAT), is a parameter analogous to geographic latitude, except that, instead of being defined relative to the geographic poles, it is defined by the axis of the geomagnetic dipole, which can be accurately extracted from the International Geomagnetic Reference Field (IGRF).[1] Further, Magnetic Local Time (MLT) is the geomagnetic dipole equivalent to geographic longitude.[2]
See also
[edit]- Earth's magnetic field
- Geomagnetic equator
- Ionosphere
- L-shell
- Magnetosphere
- World Magnetic Model (WMM)
References
[edit]- ^ VanZandt, T. E.; W. L. Clark; J. M. Warnock (1972). "Magnetic apex coordinates: A magnetic coordinate system for the ionospheric F2 layer". J. Geophys. Res. 77 (13): 2406–2411. doi:10.1029/JA077i013p02406.
- ^ "Corrected Geomagnetic Coordinates Description". omniweb.gsfc.nasa.gov. Retrieved 2024-10-18.
External links
[edit]- Space Weather: Maps of Geomagnetic Latitude (Northwest Research Associates)
- Tips on Viewing the Aurora (SWPC)
- Magnetic Field Calculator (NCEI)
- Ionospheric Electrodynamics Using Magnetic Apex Coordinates (Journal of Geomagnetism and Geoelectricity)
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