DOI: 10.1002/2014GL060801
论文题名: First global observations of the mesospheric potassium layer
作者: Dawkins E.C.M. ; Plane J.M.C. ; Chipperfield M.P. ; Feng W. ; Gumbel J. ; Hedin J. ; Höffner J. ; Friedman J.S.
刊名: Geophysical Research Letters
ISSN: 0094-9901
EISSN: 1944-9632
出版年: 2014
卷: 41, 期: 15 起始页码: 5653
结束页码: 5661
语种: 英语
英文关键词: mesospheric metal
; potassium layer
; satellite retrieval
Scopus关键词: Metals
; Potassium
; Upper atmosphere
; Atmospheric chemistry
; Optical radar
; Atmosphere dynamics
; Density profile
; Extratropical latitudes
; Global observation
; Optical spectrograph and infrared imager systems
; Satellite retrieval
; Seasonal variability
; Vertical grids
; Metal species
; Optical radar
; Search engines
; atmospheric chemistry
; lidar
; mesosphere
; meteor
; potassium
; seasonal variation
; upper atmosphere
英文摘要: Metal species, produced by meteoric ablation, act as useful tracers of upper atmosphere dynamics and chemistry. Of these meteoric metals, K is an enigma: at extratropical latitudes, limited available lidar data show that the K layer displays a semiannual seasonal variability, rather than the annual pattern seen in other metals such as Na and Fe. Here we present the first near-global K retrieval, where K atom number density profiles are derived from dayglow measurements made by the Optical Spectrograph and Infrared Imager System spectrometer on board the Odin satellite. This robust retrieval produces density profiles with typical layer peak errors of ±15% and a 2km vertical grid resolution. We demonstrate that these retrieved profiles compare well with available lidar data and show for the first time that the unusual semiannual behavior is near-global in extent. This new data set has wider applications for improving understanding of the K chemistry and of related upper atmosphere processes. Key Points First quantitative retrieval of the terrestrial K layer from space The unusual semiannual behavior of K is near global in extent © 2014. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84905327170&doi=10.1002%2f2014GL060801&partnerID=40&md5=9f992f7b7385d264b2f53851f4aeaa97
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7165
Appears in Collections: 气候减缓与适应
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作者单位: School of Chemistry, University of Leeds, Leeds, United Kingdom
Recommended Citation:
Dawkins E.C.M.,Plane J.M.C.,Chipperfield M.P.,et al. First global observations of the mesospheric potassium layer[J]. Geophysical Research Letters,2014-01-01,41(15).