DOI: 10.1002/2015GL067014
论文题名: Photochemical response of the nighttime mesosphere to electric field heating - Recovery of electron density enhancements
作者: Kotovsky D.A. ; Moore R.C.
刊名: Geophysical Research Letters
ISSN: 0094-9382
EISSN: 1944-9113
出版年: 2016
卷: 43, 期: 3 起始页码: 952
结束页码: 960
语种: 英语
英文关键词: ionosphere
; lightning
; mesosphere
; VLF scattering
Scopus关键词: Carrier concentration
; Electric fields
; Electromagnetic wave scattering
; Electron density measurement
; Ionosphere
; Lightning
; Recovery
; Conductivity changes
; Density enhancement
; Electron production
; Mesosphere
; Photochemical modeling
; Photochemical response
; Recombination loss
; Recombination process
; Electrons
; electric field
; electron density
; heating
; ionosphere
; light scattering
; lightning
; mesosphere
; photochemistry
; speciation (chemistry)
英文摘要: A photochemical model has been developed to examine the response of the nighttime mesosphere to electric field heating. Time dynamics of 29 chemical species are accounted for by a set of 156 reactions. Recovery dynamics of electron density enhancements are examined in detail, and the recovery timescales of VLF scattering resulting from the modeled conductivity changes are quantitatively estimated. Both typical recovery (up to 240 s) and long recovery (>300 s) timescales of early VLF scattering events are explainable in terms of the model results. Electron production and loss during recovery is determined by a small set of attachment, detachment, and recombination processes. Based on the model results, we conclude that long recovery VLF scattering proceeds from sufficiently large electron density enhancements that are controlled by slow recombination loss (i.e., when attachment loss is small or balanced by detachment). © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84969382144&doi=10.1002%2f2015GL067014&partnerID=40&md5=11d4927c79926b158d6cb771341c9e90
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10345
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, United States
Recommended Citation:
Kotovsky D.A.,Moore R.C.. Photochemical response of the nighttime mesosphere to electric field heating - Recovery of electron density enhancements[J]. Geophysical Research Letters,2016-01-01,43(3).