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When exploring a new country, one needs a good map. The Earth's magnetosphere is such a country, and its “maps” are models of the geomagnetic field. In essence they are mathematical prescriptions implemented by computer which, given (x,y,z) of a point and other supporting information, return the point's expected magnetic components (Bx, By, Bz) [Tsyganenko, 1990]. At present, the empirical magnetic field models by Tsyganenko [1987, 1989a, c; denoted henceforth as T87 and T89] are often used in various studies of the Earth's magnetosphere. Stern [1990] has devised modifications of T87 with current‐free tail lobes and with a plasma sheet that warps in response to dipole tilt [Peredo and Stern, 1991].

Original languageEnglish
Pages (from-to)489-494
Number of pages6
JournalEos, Transactions American Geophysical Union
Volume73
Issue number46
DOIs
StatePublished - 1 Jan 1992

    Research areas

  • magnetosphere, models, SPACECRAFT DATA

    Scopus subject areas

  • Earth and Planetary Sciences(all)

ID: 33902934