DOI: 10.1002/2017JA024936
Scopus记录号: 2-s2.0-85042621444
论文题名: Spatial and Temporal Features of the Topside Ionospheric Electron Density by a New Model Based On GPS Radio Occultation Data
作者: Prol F.D.S. ; Hernández-Pajares M. ; Camargo P.D.O. ; Muella M.T.D.A.H.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期: 3 起始页码: 2104
结束页码: 2115
语种: 英语
英文关键词: Chapman
; EIA
; equatorial region
; FORMOSAT-3/COSMIC
; scale height
; Vary-Chap
英文摘要: A new method for probing the spatial and temporal features of the topside ionosphere is presented. The Vary-Chap model given by linear functions was used to discover and report features of the topside scale height and its gradient. Based on the global coverage of the radio occultation data, spherical harmonic functions were applied to detect some spatial features of the estimated topside. In addition, a Fourier time-dependent method was applied in 10 consecutive years to both estimate and predict the temporal evolution of the topside. As a result, the temporal variation of the peak height showed high correlation with the scale height. And on the other hand, the electron density peak showed a strong anticorrelation with the gradient of the scale height. This suggests that the equatorial topside was mainly controlled by the E × B equatorial vertical drift, which increases the scale height in the equatorial region, and the diffusion of the electrons along the geomagnetic field lines, which reduces the gradient of the scale height. Also, a 1 year prediction with a reasonable accuracy showed that the proposed model can be considered a practical and useful tool for predicting features of the topside ionosphere, which may have special interest for the development of climatological models. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114359
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Universidade Estadual Paulista-UNESP-Roberto Simonsen, Presidente Prudente, São Paulo, Brazil; UPC-IonSAT, IEEC-CTE-CRAE, Barcelona, Spain; Universidade do Vale do Paraíba-UNIVAP-Laboratório de Física e Astronomia, IP&D, São José dos Campos, São Paulo, Brazil
Recommended Citation:
Prol F.D.S.,Hernández-Pajares M.,Camargo P.D.O.,et al. Spatial and Temporal Features of the Topside Ionospheric Electron Density by a New Model Based On GPS Radio Occultation Data[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(3)