Internally and externally induced deformations of the magnetospheric equatorial current as inferred from spacecraft data

Результат исследований: Научные публикации в периодических изданияхстатья

13 Цитирования (Scopus)

Аннотация

© Author(s) 2015. Based on a data pool of 79 yearly files of space magnetometer data by Polar, Cluster, Geotail, and THEMIS satellites between 1995 and 2013, we developed a new quantitative model of the global shape of the magnetospheric equatorial current sheet as a function of the Earth's dipole tilt angle, solar wind ram pressure, and interplanetary magnetic field (IMF). This work upgrades and generalizes an earlier model of Tsyganenko and Fairfield (2004) by extending the modeling region to all local times, including the dayside sector. In particular, an essential feature of the new model is the bowl-shaped tilt-related deformation of the equatorial surface of minimum magnetic field, similar to that observed at Saturn, whose existence in the Earth's magnetosphere has been demonstrated in our recent work (Tsyganenko and Andreeva, 2014).
Язык оригиналаанглийский
Страницы (с-по)1-11
ЖурналAnnales Geophysicae
Том33
Номер выпуска1
DOI
СостояниеОпубликовано - 2015

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