GCITEM-IGGCAS: A new global coupled ionosphere–thermosphere-electrodynamics model

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• 作者：Zhipeng Ren ; Weixing Wan ; Libo Liu
• 关键词：Thermosphere ; Ionosphere ; Modeling ; Global circulation models
• 刊名：Journal of Atmospheric and Solar-Terrestrial Physics
• 出版年：2009
• 出版时间：December 2009
• 年：2009
• 卷：71
• 期：17-18
• 页码：2064-2076
• 全文大小：1733 K

文摘

The Global Coupled Ionosphere–Thermosphere-Electrodynamics Model developed at Institute of Geology and Geophysics, Chinese Academy of Sciences (GCITEM-IGGCAS), is introduced in this paper. This new model self-consistently calculates the time-dependent three-dimensional (3-D) structures of the main thermospheric and ionospheric parameters in the height range from 90 to 600 km, including neutral number density of major species O₂, N₂, and O and minor species N(²D), N(⁴S), NO, He and Ar; ion number densities of O⁺ ,O₂⁺, N₂⁺, NO⁺, N⁺ and electron; neutral, electron and ion temperature; and neutral wind vectors. The mid- and low-latitude electric fields can also be self-consistently calculated. GCITEM-IGGCAS is a full 3-D code with 5° latitude by 7.5° longitude cells in a spherical geographical coordinate system, which bases on an altitude grid. We show two simulations in this paper: a March Equinox one and a June Solstice one, and compare their simulation results to MSIS00 and IRI2000 empirical model. GCITEM-IGGCAS can reproduce the main features of the thermosphere and ionosphere in both cases.