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DOI: 10.1002/2015GL066714
论文题名:
First simultaneous measurements of Na and K thermospheric layers along with TILs from Arecibo
作者: Raizada S.; Brum C.M.; Tepley C.A.; Lautenbach J.; Friedman J.S.; Mathews J.D.; Djuth F.T.; Kerr C.
刊名: Geophysical Research Letters
ISSN: 0094-8368
EISSN: 1944-8099
出版年: 2015
卷: 42, 期:23
起始页码: 10106
结束页码: 10112
语种: 英语
英文关键词: mesospheric metals ; thermospheric metals ; tidal ion layers
Scopus关键词: Ionosphere ; Metal ions ; Different mechanisms ; Ion layers ; Long lifetime ; Metal layer ; Neutral atoms ; Neutral layer ; Simultaneous measurement ; Simultaneous observation ; Metals
英文摘要: This work presents the first simultaneous observations of Na and K between 120 and 150 km altitudes along with ionospheric tidal ion layers (TILs) obtained on 30 January 2006 data from Arecibo. The latter displays an average downward phase velocity of ∼14.7 ms-1. However, the neutral layers descend together at a much slower velocity of about ∼0.69 ms-1. This indicates that thermospheric atomic metal layers are not necessarily associated with TILs. The ratio of the average Na/K abundances in thermosphere is ∼35.5 as compared to 150 in the main layer (80-105 km). The long lifetimes of ions at ∼140 km implies that neutral layers cannot result from direct neutralization of metal ions in the TILs. We investigate different mechanisms that can deposit neutral atoms at thermospheric altitudes. © 2015. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84953410407&doi=10.1002%2f2015GL066714&partnerID=40&md5=d38b50c84e8ce7ff74c4c96ace78393c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7984
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: Space and Atmospheric Science Department, Arecibo Observatory/SRI International, Arecibo, Puerto Rico

Recommended Citation:
Raizada S.,Brum C.M.,Tepley C.A.,et al. First simultaneous measurements of Na and K thermospheric layers along with TILs from Arecibo[J]. Geophysical Research Letters,2015-01-01,42(23).
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