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DOI | 10.1002/2017JD027093 |
Temperature Control of the Variability of Tropical Tropopause Layer Cirrus Clouds | |
Tseng, Hsiu-Hui; Fu, Qiang | |
2017-10-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:20 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | This study examines the temperature control of variability of tropical tropopause layer (TTL) cirrus clouds (i.e., clouds with bases higher than 14.5 km) by using 8 years (2006-2014) of observations from the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) and Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC). It is found that the temporal variability of vertical structure of TTL cirrus cloud fraction averaged between 15 degrees N and 15 degrees S can be well explained by the vertical temperature gradient below similar to 17.5 km but by the local temperature above for both seasonal and interannual time scales. It is also found that the TTL cirrus cloud fraction at a given altitude is best correlated with the temperature at a higher altitude and this vertical displacement increases with a decrease of the cirrus altitude. It is shown that the TTL cirrus cloud fractions at all altitudes are significantly correlated with tropical cold point tropopause (CPT) temperature. The plausible mechanisms that might be responsible for the observed relations between TTL cirrus fraction and temperature-based variables are discussed, which include ice particle sediments, cooling associated with wave propagations, change of atmospheric stability, and vertical gradient of water vapor mixing ratio. We further examine the spatial covariability of TTL total cirrus cloud fraction and CPT temperature for the interannual time scale. It is found that the El Nino-Southern Oscillation and quasi-biennial oscillation are the leading factors in controlling the spatial variability of the TTL cirrus clouds and temperatures. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000417195200028 |
WOS关键词 | BREWER-DOBSON CIRCULATION ; RADIO OCCULTATION DATA ; ANNUAL CYCLE ; LOWER STRATOSPHERE ; TRANSITION LAYER ; UPPER TROPOSPHERE ; MASS FLUXES ; MISSION ; LIDAR ; EQUATORIAL |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/33400 |
专题 | 气候变化 |
作者单位 | Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA |
推荐引用方式 GB/T 7714 | Tseng, Hsiu-Hui,Fu, Qiang. Temperature Control of the Variability of Tropical Tropopause Layer Cirrus Clouds[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(20). |
APA | Tseng, Hsiu-Hui,&Fu, Qiang.(2017).Temperature Control of the Variability of Tropical Tropopause Layer Cirrus Clouds.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(20). |
MLA | Tseng, Hsiu-Hui,et al."Temperature Control of the Variability of Tropical Tropopause Layer Cirrus Clouds".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.20(2017). |
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