GSTDTAP  > 气候变化
DOI10.1002/2017JD027759
Vertical Structure and Radiative Forcing of Monsoon Clouds Over Kanpur During the 2016 INCOMPASS Field Campaign
George, Geet1; Sarangi, Chandan2,3; Tripathi, Sachchida Nand2,4; Chakraborty, Tirthankar4,5; Turner, Andrew6,7
2018-02-27
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
EISSN2169-8996
出版年2018
卷号123期号:4页码:2152-2174
文章类型Article
语种英语
国家India; USA; England
英文摘要

An overview of cloud vertical structure (CVS) and cloud radiative forcing (CRF) during Indian summer monsoon is obtained over Kanpur, through observations made during the Interaction of Convective Organisation and Monsoon Precipitation, Atmosphere, Surface and Sea field campaign of 2016. Associations of CVS parameters with CRF at surface and top of atmosphere (TOA) are also investigated. One hundred thirty-seven radiosondes were launched at Indian Institute of Technology Kanpur, between 5 and 28 July 2016. CVS is determined using an algorithm that identifies cloud layers from vertical profiles of relative humidity, with altitude-dependent relative humidity thresholds. CVS is analyzed by separating the campaign period on the basis of presence and absence of depressions/low-pressure systems. Compared to nondepression periods, low-pressure events showed significant difference in all CVS and CRF parameters except cloud top height. CVS was multilayered in similar to 75% launches, with deep, mixed-phase clouds being present in similar to 70% launches. CRF was calculated from clear-sky measurements and TOA observations from Clouds and the Earth's Radiant Energy System satellite retrievals, and surface measurements. A net cooling effect was found overall, with instantaneous shortwave CRF (mean values of -95.92 and -101.89 W/m(2) at surface and TOA, respectively) dominating longwave cloud radiative forcing (LWCRF) (mean values of 15.33 and 66.55 W/m(2) at surface and TOA, respectively). Results suggest that shortwave CRF depends on total depth of cloud layers and is independent of cloud altitude, whereas LWCRF depends on both depth and vertical location of cloud layers, with base and top heights regulating LWCRF at surface and TOA, respectively.


领域气候变化
收录类别SCI-E
WOS记录号WOS:000427774500016
WOS关键词GENERAL-CIRCULATION MODEL ; UPPER-AIR OBSERVATIONS ; INDIAN MONSOON ; REGION ; DEPRESSIONS ; CLIMATE ; ATMOSPHERE ; RADIOSONDE ; SATELLITE ; SURFACE
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/33090
专题气候变化
作者单位1.IIT Kanpur, Environm Engn & Management Programme, Kanpur, Uttar Pradesh, India;
2.IIT Kanpur, Dept Civil Engn, Kanpur, Uttar Pradesh, India;
3.Pacific Northwest Natl Lab, Atmospher Sci & Global Change, Richland, WA USA;
4.IIT Kanpur, Ctr Environm Sci & Engn, Kanpur, Uttar Pradesh, India;
5.Yale Univ, Sch Forestry & Environm Studies, New Haven, CT 06511 USA;
6.Univ Reading, Dept Meteorol, Reading, Berks, England;
7.Univ Reading, Natl Ctr Atmospher Sci, Reading, Berks, England
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GB/T 7714
George, Geet,Sarangi, Chandan,Tripathi, Sachchida Nand,et al. Vertical Structure and Radiative Forcing of Monsoon Clouds Over Kanpur During the 2016 INCOMPASS Field Campaign[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(4):2152-2174.
APA George, Geet,Sarangi, Chandan,Tripathi, Sachchida Nand,Chakraborty, Tirthankar,&Turner, Andrew.(2018).Vertical Structure and Radiative Forcing of Monsoon Clouds Over Kanpur During the 2016 INCOMPASS Field Campaign.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(4),2152-2174.
MLA George, Geet,et al."Vertical Structure and Radiative Forcing of Monsoon Clouds Over Kanpur During the 2016 INCOMPASS Field Campaign".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.4(2018):2152-2174.
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