DOI: 10.1016/j.atmosenv.2015.01.074
Scopus记录号: 2-s2.0-84922639337
论文题名: Numerical study of natural sea salt aerosol and its radiative effects on climate and sea surface temperature over East Asia
作者: Guo J ; , Yin Y ; , Wu J ; , Zhao D
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 106 起始页码: 110
结束页码: 119
语种: 英语
英文关键词: East Asia
; Precipitation
; Radiative forcing
; Sea salt aerosol
; Sea surface temperature
Scopus关键词: Aerosols
; Atmospheric radiation
; Atmospheric temperature
; Climate models
; Heat flux
; Precipitation (chemical)
; Submarine geophysics
; Surface properties
; Surface waters
; Direct radiative forcing
; East Asia
; Precipitation anomalies
; Radiative forcings
; Regional climate modeling
; Sea salt aerosol
; Sea surface temperature (SST)
; Shortwave radiative flux
; Oceanography
; sodium chloride
; aerosol
; atmosphere-ocean system
; climate feedback
; data set
; heat flux
; mathematical analysis
; precipitation (climatology)
; radiative forcing
; sea salt
; sea surface temperature
; wind field
; aerosol
; air temperature
; Article
; Asia
; atmosphere
; China
; circulation
; cloud
; environmental radioactivity
; evaporation
; moisture
; motion
; ocean current
; oceanic regions
; precipitation
; priority journal
; quantitative study
; radiation
; radiative forcing
; sea
; sea surface temperature
; seasonal variation
; simulation
; solar radiation
; summer
; temperature
; thermodynamics
; troposphere
; water vapor
; wind
; China
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: A regional climate model, RIEMS-POM, was used to study the direct radiative forcing (DRF) of sea salt on precipitation, sea surface temperature (SST) and summer circulation over East Asia with aerosol dataset from GOCART. The simulations predicted negative DRFs of-0.87Wm-2at the surface and-1.40Wm-2at the top of the atmosphere by sea salt. Results from the simulations suggest the forcing of sea salt produces a slight positive temperature anomaly and a reduction in precipitation over Southern China, accompanied by an opposite trend north of 40°N in Northern and Northeastern China. The tendency of wetting in North and drying in South by sea salt was mainly determined by the wind field, the vertical motion, as well as the local evaporation anomalies. The impacts of sea salt on SST suggest that the net surface shortwave radiative flux and the changes in convective cloud are important in forming the decreased SST throughout the year, while the northward oceanic heat transport anomaly and the other heat flux anomalies contribute relatively smaller. The feature by sea salt on SST imposes an extra force from the atmosphere to the ocean. The sea salt could also diminish the land-sea temperature contrast (LSTC) in summer and therefore the climatological summer circulation over East Asia, leading to reduced precipitation in Southern China. All these climatic feedbacks, such as LSTC and precipitation anomaly, will be attenuated when the SST is fixed. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81910
Appears in Collections: 气候变化事实与影响
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作者单位: Key Lab. for Aerosol-Cloud-Precipitation of China Meteorological Administration (CMA), Nanjing University of Information Science and Technology, Nanjing, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, China; Department of Atmospheric Science, Yunnan University, Kunming, China; Key Laboratory of Regional Climate-Environment for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Guo J,, Yin Y,, Wu J,et al. Numerical study of natural sea salt aerosol and its radiative effects on climate and sea surface temperature over East Asia[J]. Atmospheric Environment,2015-01-01,106