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DOI10.1016/j.atmosres.2017.10.018
Enhanced daytime occurrence of clouds in the tropical upper troposphere over land and ocean
Gupta, Ashok Kumar1; Rajeev, K.1; Sijikumar, S.1; Nair, Anish Kumar M.2
2018-03-01
发表期刊ATMOSPHERIC RESEARCH
ISSN0169-8095
EISSN1873-2895
出版年2018
卷号201页码:133-143
文章类型Article
语种英语
国家India
英文摘要

Day-night changes in the altitudinal distribution of tropical clouds are examined using multi-year analyses of CloudSat and CALIPSO data. The combined occurrence of all cloud types maximizes in the nighttime throughout the middle and upper troposphere. In contrast to the nighttime maxima in the appearance of optically thick tropical clouds in the similar to 5-12 km altitude band, the occurrence of such clouds exhibit a pronounced daytime enhancement in the upper troposphere ( > 12 km). This arises from the more frequent occurrence of thick cirrus and deeper penetration of daytime convective clouds to the upper troposphere, as evidenced from more frequent daytime occurrence of clouds with thickness > 9 km. Apart from the afternoon convection over land and remnant cirrus from nighttime convection over ocean, the daytime cloud enhancement observed above 12 km altitude might be also driven by the larger tropospheric net cloud radiative heating and its vertical gradient during the daytime.


领域地球科学
收录类别SCI-E
WOS记录号WOS:000418981500010
WOS关键词DEEP CONVECTION ; DIURNAL CYCLE ; VARIABILITY ; ATMOSPHERE ; REGIME
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/38375
专题地球科学
作者单位1.Vikram Sarabhai Space Ctr, Space Phys Lab, Thiruvananthapuram, Kerala, India;
2.Natl Atmospher Res Lab, Tirupati, Andhra Pradesh, India
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Gupta, Ashok Kumar,Rajeev, K.,Sijikumar, S.,et al. Enhanced daytime occurrence of clouds in the tropical upper troposphere over land and ocean[J]. ATMOSPHERIC RESEARCH,2018,201:133-143.
APA Gupta, Ashok Kumar,Rajeev, K.,Sijikumar, S.,&Nair, Anish Kumar M..(2018).Enhanced daytime occurrence of clouds in the tropical upper troposphere over land and ocean.ATMOSPHERIC RESEARCH,201,133-143.
MLA Gupta, Ashok Kumar,et al."Enhanced daytime occurrence of clouds in the tropical upper troposphere over land and ocean".ATMOSPHERIC RESEARCH 201(2018):133-143.
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