Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-20-7125-2020 |
Linking large-scale circulation patterns to low-cloud properties | |
Juliano, Timothy W.1; Lebo, Zachary J.2 | |
2020-06-17 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2020 |
卷号 | 20期号:12页码:7125-7138 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The North Pacific High (NPH) is a fundamental meteorological feature present during the boreal warm season. Marine boundary layer (MBL) clouds, which are persistent in this oceanic region, are influenced directly by the NPH. In this study, we combine 11 years of reanalysis and an unsupervised machine learning technique to examine the gamut of 850 hPa synoptic-scale circulation patterns. This approach reveals two distinguishable regimes - a dominant NPH setup and a land-falling cyclone - and in between a spectrum of large-scale patterns. We then use satellite retrievals to elucidate for the first time the explicit dependence of MBL cloud properties (namely cloud droplet number concentration, liquid water path, and shortwave cloud radiative effect - CREsw) on 850 hPa circulation patterns over the northeast Pacific Ocean. We find that CREsw spans from -146.8 to -115.5 Wm(-2), indicating that the range of observed MBL cloud properties must be accounted for in global and regional climate models. Our results demonstrate the value of combining reanalysis and satellite retrievals to help clarify the relationship between synoptic-scale dynamics and cloud physics. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000542259800001 |
WOS关键词 | TRAPPED WIND REVERSALS ; BOUNDARY-LAYER CLOUDS ; SELF-ORGANIZING MAPS ; LIQUID WATER PATH ; AIR-QUALITY ; STRATOCUMULUS CLOUDS ; SOLAR-RADIATION ; IMPACT ; VARIABILITY ; TRANSPORT |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
URL | 查看原文 |
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/276539 |
专题 | 地球科学 |
作者单位 | 1.Natl Ctr Atmospher Res, Res Applicat Lab, Boulder, CO 80301 USA; 2.Univ Wyoming, Dept Atmospher Sci, Laramie, WY 82071 USA |
推荐引用方式 GB/T 7714 | Juliano, Timothy W.,Lebo, Zachary J.. Linking large-scale circulation patterns to low-cloud properties[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(12):7125-7138. |
APA | Juliano, Timothy W.,&Lebo, Zachary J..(2020).Linking large-scale circulation patterns to low-cloud properties.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(12),7125-7138. |
MLA | Juliano, Timothy W.,et al."Linking large-scale circulation patterns to low-cloud properties".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.12(2020):7125-7138. |
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