DOI: 10.1175/JCLI-D-17-0668.1
Scopus记录号: 2-s2.0-85052837335
论文题名: Satellite-observed precipitation response to ocean mesoscale eddies
作者: Liu X. ; Chang P. ; Kurian J. ; Saravanan R. ; Lin X.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期: 17 起始页码: 6879
结束页码: 6895
语种: 英语
英文关键词: Atmosphere
; Atmosphere-ocean interaction
; Eddies
; Ocean
; Precipitation
; Satellite observations
Scopus关键词: Atmospheric thermodynamics
; Climatology
; Earth atmosphere
; Ocean currents
; Precipitation (chemical)
; Rain
; Remote sensing
; Satellites
; Atmosphere-ocean interactions
; Atmospheric circulation
; Climate prediction centers
; Eddies
; Ocean
; Remote sensing technology
; Satellite observations
; Spatial and temporal resolutions
; Rain gages
英文摘要: Among various forms of atmospheric response to ocean mesoscale eddies, the rainfall response is the most difficult to quantify and is subject to considerable uncertainty. Here the robustness of the rainfall response is examined by comparing three different satellite-derived rainfall datasets: the Tropical RainfallMeasuringMission (TRMM) Multisatellite Precipitation Analysis (TMPA), NOAA Climate Prediction Center (CPC) morphing technique(CMORPH)global precipitation, and the newly available Integrated MultisatelliteRetrievals for Global PrecipitationMeasurement (IMERG) that is based on the latest remote sensing technology with finer spatial and temporal resolution. Results show that all datasets exhibit a similar rainfall response to ocean eddies, but the amplitude of the rainfall response ismuch stronger in IMERG than in the other two, despite the fact that IMERG provides the weakest time-mean rainfall estimate. In situ validation against the NOAA's Ocean Climate Stations Project (OCS) Kuroshio Extension Observatory (KEO) buoy rainfall measurement shows that IMERG is more accurate in estimating both the mean value of rainfall and its intensity distribution than the other two products, at least in the Kuroshio Extension region. Further analysis reveals that 1) eddy-induced precipitation response is significantly stronger in winter than in summer, and 2) warm-eddy-induced rainfall response is considerably stronger than cold-eddy-induced response, and these asymmetries in rainfall response are more robust in IMERG than in the other two datasets. Documenting and analyzing these asymmetric rainfall responses is important for understanding the potential role of ocean eddies in forcing the large-scale atmospheric circulation and climate. © 2018 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111406
Appears in Collections: 气候减缓与适应
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作者单位: Department of Oceanography, Texas A and M University, College Station, TX, United States; Physical Oceanography Laboratory, Collaborative Innovation Center of Marine Science and Technology, Ocean University of China, China; Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Department of Atmospheric Sciences, Texas A and M University, College Station, TX, United States
Recommended Citation:
Liu X.,Chang P.,Kurian J.,et al. Satellite-observed precipitation response to ocean mesoscale eddies[J]. Journal of Climate,2018-01-01,31(17)