| DOI: | 10.1002/2015GL064042
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| 论文题名: | Latitudinal dependence of static mesospheric e fields above thunderstorms |
| 作者: | Kabirzadeh R.; Lehtinen N.G.; Inan U.S.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9500
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| EISSN: | 1944-9231
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| 出版年: | 2015
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| 卷: | 42, 期:10 | | 起始页码: | 4208
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| 结束页码: | 4215
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| 语种: | 英语
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| 英文关键词: | early/fast VLF events
; ionospheric conductivity
; thunderstorms
; thunderstorms upward coupling
; whistler ducts
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| Scopus关键词: | Electric fields
; Electrostatics
; Geomagnetism
; Magnetosphere
; Thunderstorms
; 3-d modeling
; Early/fast VLF events
; Geomagnetic field lines
; Geomagnetic fields
; Ionospheric conductivity
; Ionospheric electron
; Symmetric case
; Vertical magnetic fields
; Ducts
; atmospheric electricity
; electron
; ionosphere
; latitudinal gradient
; magnetic field
; magnetosphere
; mesosphere
; thunderstorm
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| 英文摘要: | Electrostatic fields generated by thunderclouds can significantly heat and modify the lower ionospheric electrons at altitudes of 70-80 km. These fields can map to higher altitudes along the geomagnetic field lines and have been proposed as the mechanism for generation of whistler ducts. Previous 2-D modeling of these fields have been limited to azimuthally symmetric cases which requires a vertical magnetic field. We have developed a 3-D model of the electrostatic thundercloud fields which allows the consideration of effects of the geomagnetic field dip angle on the mapping of the fields to high altitudes. The results show stronger electric fields at altitudes of 70-110 km with an equatorward and eastward shift of tens of kilometers at lower geomagnetic latitudes. These stronger fields are mapped into the magnetosphere and may therefore be important for whistler duct generation. The fields also indicate a more significant contribution of the quiescent heating on VLF early/fast events. ©2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84931568460&doi=10.1002%2f2015GL064042&partnerID=40&md5=552b5efb1675a51c89b94abdb43049c4
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/9115
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| 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 Electrical Engineering, Stanford University, Stanford, CA, United States
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| Recommended Citation: | |
Kabirzadeh R.,Lehtinen N.G.,Inan U.S.. Latitudinal dependence of static mesospheric e fields above thunderstorms[J]. Geophysical Research Letters,2015-01-01,42(10).
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