DOI: 10.1002/2015GL066093
论文题名: Vertical structure of medium-scale traveling ionospheric disturbances
作者: Ssessanga N. ; Kim Y.H. ; Kim E.
刊名: Geophysical Research Letters
ISSN: 0094-8477
EISSN: 1944-8208
出版年: 2015
卷: 42, 期: 21 起始页码: 9156
结束页码: 9165
语种: 英语
英文关键词: GPS receiver network
; ionosphere
; medium-scale traveling ionospheric disturbances
; tomography
; total electron content
Scopus关键词: Algorithms
; Electric fields
; Ionosphere
; Ionospheric electromagnetic wave propagation
; Ionospheric measurement
; Tomography
; Algebraic reconstruction techniques
; Conductivity variation
; Global positioning system receivers
; GPS receivers
; Medium-scale traveling ionospheric disturbance
; Peak to peak amplitudes
; Three-dimensional structure
; Total electron content
; Global positioning system
; algorithm
; amplitude
; calibration
; computer simulation
; data set
; digitization
; electric field
; electron density
; GPS
; ionosphere
; numerical model
; reconstruction
; software
; tomography
; vertical distribution
英文摘要: We develop an algorithm of computerized ionospheric tomography (CIT) to infer information on the vertical and horizontal structuring of electron density during nighttime medium-scale traveling ionospheric disturbances (MSTIDs). To facilitate digital CIT we have adopted total electron contents (TEC) from a dense Global Positioning System (GPS) receiver network, GEONET, which contains more than 1000 receivers. A multiplicative algebraic reconstruction technique was utilized with a calibrated IRI-2012 model as an initial solution. The reconstructed F2 peak layer varied in altitude with average peak-to-peak amplitude of ~52 km. In addition, the F2 peak layer anticorrelated with TEC variations. This feature supports a theory in which nighttime MSTID is composed of oscillating electric fields due to conductivity variations. Moreover, reconstructed TEC variations over two stations were reasonably close to variations directly derived from the measured TEC data set. Our tomographic analysis may thus help understand three-dimensional structure of MSTIDs in a quantitative way. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955197571&doi=10.1002%2f2015GL066093&partnerID=40&md5=8db309840b15a1a56ac3f79aeff691ea
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8093
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Astronomy and Space Science, Chungnam National University, Daejeon, South Korea
Recommended Citation:
Ssessanga N.,Kim Y.H.,Kim E.. Vertical structure of medium-scale traveling ionospheric disturbances[J]. Geophysical Research Letters,2015-01-01,42(21).