DOI: 10.1175/JCLI-D-15-0589.1
Scopus记录号: 2-s2.0-84974806539
论文题名: Low-cloud transitions across the Kuroshio front in the East China Sea
作者: Liu J.-W. ; Xie S.-P. ; Yang S. ; Zhang S.-P.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2016
卷: 29, 期: 12 起始页码: 4429
结束页码: 4443
语种: 英语
Scopus关键词: Atmospheric boundary layer
; Atmospheric temperature
; Boundary layers
; Clouds
; Coastal zones
; Ocean currents
; Surface waters
; Wind
; Atmospheric circulation
; Atmospheric sounding
; East Asian monsoon
; Liquid water clouds
; Long term observations
; Marine atmospheric boundary layer
; Sea surface temperature (SST)
; Visual observations
; Oceanography
; atmospheric circulation
; atmospheric front
; boundary layer
; cloud cover
; lidar
; marine atmosphere
; monsoon
; sea surface temperature
; East China Sea
; Pacific Ocean
英文摘要: The East China Sea Kuroshio (ECSK) flows in the East Asian monsoon region where the background atmospheric circulation varies significantly with season. A sea surface temperature (SST) front associated with the ECSK becomes narrower and sharper from winter to spring. The present study investigates how low clouds respond to the ECSK front in different seasons by synthesizing spaceborne lidar and surface visual observations. The results reveal prominent cross-frontal transitions in low clouds, which exhibit distinct behavior between winter and spring. In winter, cloud responses are generally confined below 4 km by the strong background descending motion and feature a gradual cloud-top elevation from the cold to the warm flank of the front. The ice clouds on the cold flank of the ECSK front transform into liquid water clouds and rain on the warm flank. The springtime clouds, by contrast, are characterized by a sharp cross-frontal transition with deep clouds reaching up to 7 km over the ECSK. In both winter and spring, the low-cloud morphology exhibits a large transformation from the cold to the warm flank of the ECSK front, including increases in cloud-top height, a decline in smoothness of cloud top, and the transition from stratiform to convective clouds. All this along with the atmospheric soundings indicates that the decoupling of the marine atmospheric boundary layer (MABL) is more prevalent on the warm flank of the front. Thus, long-term observations reveal prominent cross-frontal low-cloud transitions in morphology associated with MABL decoupling that resemble a large-scale cloud-regime transition over the eastern subtropical Pacific. © 2016 American Meteorological Society. 资助项目: NSFC, National Natural Science Foundation of China
; NSFC, National Natural Science Foundation of China
; NSFC, National Natural Science Foundation of China
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49914
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Physical Oceanography Laboratory, Qingdao Collaborative Innovation Center of Marine Science and Technology, Ocean University of China, Qingdao, China; Ocean-Atmosphere Interaction and Climate Laboratory, Ocean University of China, Qingdao, China; Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States; Heilongjiang Meteorological Service Center, Heilongjiang Meteorological Bureau, Harbin, China
Recommended Citation:
Liu J.-W.,Xie S.-P.,Yang S.,et al. Low-cloud transitions across the Kuroshio front in the East China Sea[J]. Journal of Climate,2016-01-01,29(12)