DOI: 10.1002/2016GL069906
论文题名: Observational evidence linking precipitation and mesoscale cloud fraction in the southeast Pacific
作者: Rapp A.D.
刊名: Geophysical Research Letters
ISSN: 0094-8895
EISSN: 1944-8626
出版年: 2016
卷: 43, 期: 13 起始页码: 7267
结束页码: 7273
语种: 英语
英文关键词: boundary layer clouds
; cloud fraction
; CloudSat
; drizzle
; precipitation
; stratocumulus
Scopus关键词: Boundary layers
; Clouds
; Precipitation (chemical)
; Rain
; Boundary layer clouds
; Cloud fraction
; CloudSat
; Drizzle
; Stratocumulus
; Precipitation (meteorology)
; boundary layer
; CALIPSO
; cloud cover
; CloudSat
; drizzle
; mesoscale meteorology
; precipitation assessment
; stratocumulus
; tracking
英文摘要: Precipitation has been hypothesized to play an important role in the transition of low clouds from closed to open cell cumulus in regions of large-scale subsidence. A synthesis of A-Train satellite measurements is used to examine the relationship between precipitation and mesoscale cloud fraction across a transition region in the southeastern Pacific. Low cloud pixels are identified in 4 years of CloudSat/CALIPSO observations and along-track mean cloud fraction within 2.5–500 km surrounding the clouds calculated. Results show that cloud fraction decreases more rapidly in areas surrounding precipitating clouds than around nonprecipitating clouds. The closed to open cell transition region appears especially sensitive, with the surrounding mesoscale cloud fraction decreasing 30% faster in the presence of precipitation compared to nonprecipitating clouds. There is also dependence on precipitation rate and cloud liquid water path (LWP), with higher rain rates or lower LWP showing larger decreases in surrounding cloud fraction. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978378783&doi=10.1002%2f2016GL069906&partnerID=40&md5=7d30b485be0a64bef226957b9b3a7109
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9858
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: Department of Atmospheric Sciences, Texas A&M University, College Station, TX, United States
Recommended Citation:
Rapp A.D.. Observational evidence linking precipitation and mesoscale cloud fraction in the southeast Pacific[J]. Geophysical Research Letters,2016-01-01,43(13).