DOI: 10.1175/JCLI-D-14-00320.1
Scopus记录号: 2-s2.0-84926058963
论文题名: Clouds, precipitation, and marine boundary layer structure during the MAGIC field campaign
作者: Zhou X. ; Kollias P. ; Lewis E.R.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 6 起始页码: 2420
结束页码: 2442
语种: 英语
Scopus关键词: Air entrainment
; Boundary layers
; Clouds
; Heat flux
; Cloud cover
; Cumulus cloud
; Inversions
; Marine boundary layers
; Stratiform clouds
; Precipitation (meteorology)
; boundary layer
; cloud cover
; marine atmosphere
; precipitation (climatology)
; stratiform cloud
; stratocumulus
; California
; Hawaii [United States]
; Hawaiian Islands
; Honolulu
; Los Angeles [California]
; Oahu
; United States
英文摘要: The recent ship-based Marine ARM GCSS Pacific Cross-Section Intercomparison (GPCI) Investigation of Clouds (MAGIC) field campaign with the marine-capable Second ARM Mobile Facility (AMF2) deployed on the Horizon Lines cargo container M/V Spirit provided nearly 200 days of intraseasonal high-resolution observations of clouds, precipitation, and marine boundary layer (MBL) structure on multiple legs between Los Angeles, California, and Honolulu, Hawaii. During the deployment, MBL clouds exhibited a much higher frequency of occurrence than other cloud types and occurred more often in the warm season than in the cold season. MBL clouds demonstrated a propensity to produce precipitation, which often evaporated before reaching the ocean surface. The formation of stratocumulus is strongly correlated to a shallow MBL with a strong inversion and a weak transition, while cumulus formation is associated with a much weaker inversion and stronger transition. The estimated inversion strength is shown to depend seasonally on the potential temperature at 700 hPa. The location of the commencement of systematic MBL decoupling always occurred eastward of the locations of cloud breakup, and the systematic decoupling showed a strong moisture stratification. The entrainment of the dry warm air above the inversion appears to be the dominant factor triggering the systematic decoupling, while surface latent heat flux, precipitation, and diurnal circulation did not play major roles. MBL clouds broke up over a short spatial region due to the changes in the synoptic conditions, implying that in real atmospheric conditions the MBL clouds do not have enough time to evolve as in the idealized models. © 2015 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50913
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Atmospheric and Oceanic Sciences, McGill University, Montreal, QC, Canada; Biological, Environmental and Climate Sciences Department, Brookhaven National Laboratory, Upton, NY, United States
Recommended Citation:
Zhou X.,Kollias P.,Lewis E.R.. Clouds, precipitation, and marine boundary layer structure during the MAGIC field campaign[J]. Journal of Climate,2015-01-01,28(6)