Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029015 |
Post Cold Frontal Clouds at the ARM Eastern North Atlantic Site: An Examination of the Relationship Between Large-Scale Environment and Low-Level Cloud Properties | |
Naud, Catherine M.1; Booth, James F.2; Lamraoui, Faycal2 | |
2018-11-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:21页码:12117-12132 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Using cloud and environment observations from the Atmospheric Radiation Measurement (ARM) program Eastern North Atlantic site and an automated cold front detection routine, cloud properties in post cold front (PCF) periods are examined and compared to similar conditions of subsidence (non-PCF). PCF periods exhibit stronger subsidence and wind speed than non-PCF periods, with weaker inversions and stronger surface temperature contrasts. Low-level clouds are predominant and are found to have higher cloud base and top heights, colder cloud top temperature, and greater vertical extent and liquid water path during PCF than non-PCF periods. The environmental metric that is best correlated with cloud boundaries for both PCF and non-PCF periods is the difference in potential temperature between the sea surface and 800 hPa, a parameter used to locate cold air outbreak conditions. However, the cloud vertical extent and liquid water path are found to be better correlated with sea-air temperature contrast, a parameter related to turbulent surface fluxes. The strength of the relationships between the cloud characteristics and these metrics does not differ for PCF and non-PCF periods. However, the strength of the metrics differs between PCF and non-PCF periods and can explain cloud property differences. The results suggest both the properties of the boundary layer and the presence of an upper-level cyclone associated with the cold front determine PCF cloud properties. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000452001400020 |
WOS关键词 | SOUTHERN-OCEAN ; AIR OUTBREAKS ; MODEL ; CLIMATOLOGY ; COVER |
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/33982 |
专题 | 气候变化 |
作者单位 | 1.Columbia Univ, NASA, GISS, Appl Phys & Appl Math, New York, NY 10027 USA; 2.CUNY City Coll, Earth & Atmospher Sci, New York, NY 10031 USA |
推荐引用方式 GB/T 7714 | Naud, Catherine M.,Booth, James F.,Lamraoui, Faycal. Post Cold Frontal Clouds at the ARM Eastern North Atlantic Site: An Examination of the Relationship Between Large-Scale Environment and Low-Level Cloud Properties[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(21):12117-12132. |
APA | Naud, Catherine M.,Booth, James F.,&Lamraoui, Faycal.(2018).Post Cold Frontal Clouds at the ARM Eastern North Atlantic Site: An Examination of the Relationship Between Large-Scale Environment and Low-Level Cloud Properties.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(21),12117-12132. |
MLA | Naud, Catherine M.,et al."Post Cold Frontal Clouds at the ARM Eastern North Atlantic Site: An Examination of the Relationship Between Large-Scale Environment and Low-Level Cloud Properties".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.21(2018):12117-12132. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论