DOI: 10.1002/2015GL064892
论文题名: A solar escalator on Mars: Self-lifting of dust layers by radiative heating
作者: Daerden F. ; Whiteway J.A. ; Neary L. ; Komguem L. ; Lemmon M.T. ; Heavens N.G. ; Cantor B.A. ; Hébrard E. ; Smith M.D.
刊名: Geophysical Research Letters
ISSN: 0094-9408
EISSN: 1944-9139
出版年: 2015
卷: 42, 期: 18 起始页码: 7319
结束页码: 7326
语种: 英语
英文关键词: dust layers
; lidar
; Mars
; radiative heating
; solar escalator
Scopus关键词: Boundary layers
; Dust
; Earth atmosphere
; Elevators
; Escalators
; Heat radiation
; Heating
; Martian surface analysis
; Optical radar
; Radiant heating
; Storms
; Atmospheric dust
; Atmospheric general circulation models
; Dust layer
; Lidar observation
; Light detection and ranging
; Mars
; Planetary boundary layers
; Radiative heating
; Atmospheric boundary layer
; boundary layer
; dust storm
; heating
; lidar
; Mars
; radiative transfer
; saltation
; solar radiation
; stratosphere
; surface wind
英文摘要: Dust layers detected in the atmosphere of Mars by the light detection and ranging (LIDAR) instrument on the Phoenix Mars mission are explained using an atmospheric general circulation model. The layers were traced back to observed dust storm activity near the edge of the north polar ice cap where simulated surface winds exceeded the threshold for dust lifting by saltation. Heating of the atmospheric dust by solar radiation caused buoyant instability and mixing across the top of the planetary boundary layer (PBL). Differential advection by wind shear created detached dust layers above the PBL that ascended due to radiative heating and arrived at the Phoenix site at heights corresponding to the LIDAR observations. The self-lifting of the dust layers is similar to the "solar escalator" mechanism for aerosol layers in the Earth's stratosphere. © 2015 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84945469022&doi=10.1002%2f2015GL064892&partnerID=40&md5=0e2e7ef9a2e3e156bca7db0fec570052
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9023
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: Belgian Institute for Space Aeronomy, Brussels, Belgium
Recommended Citation:
Daerden F.,Whiteway J.A.,Neary L.,et al. A solar escalator on Mars: Self-lifting of dust layers by radiative heating[J]. Geophysical Research Letters,2015-01-01,42(18).