DOI: 10.1002/jgrd.50596
论文题名: A multidecadal study of cirrus in the tropical tropopause layer
作者: Massie S.T. ; Khosravi R. ; Gille J.C.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 14 起始页码: 7938
结束页码: 7947
语种: 英语
英文关键词: cirrus
; satellite
; trends
Scopus关键词: Aerosols
; Experiments
; Full width at half maximum
; Satellites
; Tropics
; Troposphere
; cirrus
; Cloud-aerosol lidar with orthogonal polarizations
; Halogen occultation experiments
; High-resolution dynamics limb sounders
; Latitudinal gradients
; Stratospheric aerosols
; trends
; Tropical tropopause layers
; Clouds
; aerosol
; cirrus
; data set
; decadal variation
; latitudinal gradient
; polarization
; satellite imagery
; tropical environment
; tropopause
; upper atmosphere
英文摘要: Changes in the distributions of cirrus in the upper troposphere centered at 100 hPa in the tropical tropopause layer (TTL) during the last 27 years (1985-2012) are quantified based upon an analysis of five independent data sets. Stratospheric Aerosol and Gas Experiment II, Halogen Occultation Experiment, Cryogenic Limb Array Etalon Spectrometer, High Resolution Dynamics Limb Sounder, and Cloud-Aerosol Lidar with Orthogonal Polarization data are used to determine cirrus frequency-of-occurrence geospatial distributions in the TTL in multiple year segments during 1985-2012. Full width at half maximum (FWHM) tropical widths of cirrus zonal averages of occurrence frequency centered at 100 hPa are calculated for each experiment. The FWHMs have a 2σ trend of 0.28 ± 1.5°decade-1. This statistically insignificant trend is similar to those calculated by Davis and Rosenlof (2012) based upon analyses of reanalysis tropopause height and tropopause latitudinal gradients near 100 hPa. Key Points Upper troposphere cirrus is examined during the last 25 years FWHM tropical widths of cirrus distributions at 100 hPa are quantified The FWHMs have a trend of 0.38 +- 1.5 degrees/decade ©2013. American Geophysical Union. All Rights Reserved. 资助项目: NNX11AE54G
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63503
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: National Center for Atmospheric Research, PO Box 3000, Boulder, CO 80307-3000, United States
Recommended Citation:
Massie S.T.,Khosravi R.,Gille J.C.. A multidecadal study of cirrus in the tropical tropopause layer[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(14)