GSTDTAP  > 气候变化
DOI10.1002/2016JD026061
Shipborne observations of the radiative effect of Southern Ocean clouds
Protat, Alain1; Schulz, Eric1; Rikus, Lawrence1; Sun, Zhian1; Xiao, Yi1; Keywood, Melita2
2017
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
EISSN2169-8996
出版年2017
卷号122期号:1
文章类型Article
语种英语
国家Australia
英文摘要

This study uses shipborne cloud radar and surface radiation measurements collected over the Southern Ocean to characterize the cloud frequency, cloud fraction, and cloud radiative effects on the ocean surface. These cloud and radiative properties are also used to evaluate a regional forecast model. Low-level clouds, either alone or cooccurring with cloud layers aloft, are present similar to 77% of the time in this data set. These clouds either had a very low or a very high cloud fraction at 12 km horizontal resolution, with about half of the clouds characterized by a cloud fraction higher than 80%. Overall, shortwave surface cooling effect dominates longwave heating, with an estimate net radiative cooling of -22 Wm(-2), resulting from a -71 Wm(-2) shortwave cooling and a +49 Wm(-2) longwave heating. A strong relationship between daily surface cloud radiative effect and daily low-level cloud fraction is found, which, if confirmed with a larger data set, could be exploited in satellite retrievals or model parameterizations for the Southern Ocean. The regional model underestimates the frequency of low-level clouds but largely overestimates the frequency of multilayer situations. The associated radiative errors are large and complex, including reduced surface radiative cooling due to low-level clouds compensated by enhanced surface cooling in multilayer situations.


英文关键词Southern Ocean clouds radiative forcing
领域气候变化
收录类别SCI-E
WOS记录号WOS:000393877800018
WOS关键词WEATHER PREDICTION SYSTEM ; SHORTWAVE RADIATION ; OPERATIONAL MODELS ; SURFACE ; RADAR ; PRECIPITATION ; TEMPERATURE ; AUSTRALIA ; FREQUENCY ; PRODUCTS
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
被引频次:41[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/32427
专题气候变化
作者单位1.Australian Bur Meteorol, Melbourne, Vic, Australia;
2.CSIRO, Aspendale, Vic, Australia
推荐引用方式
GB/T 7714
Protat, Alain,Schulz, Eric,Rikus, Lawrence,et al. Shipborne observations of the radiative effect of Southern Ocean clouds[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(1).
APA Protat, Alain,Schulz, Eric,Rikus, Lawrence,Sun, Zhian,Xiao, Yi,&Keywood, Melita.(2017).Shipborne observations of the radiative effect of Southern Ocean clouds.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(1).
MLA Protat, Alain,et al."Shipborne observations of the radiative effect of Southern Ocean clouds".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.1(2017).
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