DOI: 10.1175/JCLI-D-15-0742.1
Scopus记录号: 2-s2.0-85020001048
论文题名: Process-based decomposition of the decadal climate difference between 2002-13 and 1984-95
作者: Hu X. ; Li Y. ; Yang S. ; Deng Y. ; Cai M.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2017
卷: 30, 期: 12 起始页码: 4373
结束页码: 4393
语种: 英语
Scopus关键词: Atmospheric radiation
; Atmospheric temperature
; Carbon dioxide
; Feedback
; Global warming
; Heat storage
; Moisture
; Tropics
; Uncertainty analysis
; Atmospheric moisture
; Atmospheric water vapor
; Decadal variability
; Decomposition analysis
; Global surface warming
; Radiative forcings
; Radiative transfer model
; Surface temperatures
; Radiative transfer
; climate feedback
; decadal variation
; decomposition analysis
; radiative forcing
; radiative transfer
; surface temperature
英文摘要: This study examines at the process level the climate difference between 2002-13 and 1984-95 in ERA-Interim. A linearized radiative transfer model is used to calculate the temperature change such that its thermal radiative cooling would balance the energy flux perturbation associated with the change of an individual process, without regard to what causes the change of the process in the first place. The global mean error of the offline radiative transfer model calculations is 0.09 K, which corresponds to the upper limit of the uncertainties from a single term in the decomposition analysis. The process-based decomposition indicates that the direct effect of the increase of CO2 (0.15 K) is the largest contributor to the global warming between the two periods (about 0.27 K). The second and third largest contributors are the cloud feedback (0.14 K) and the combined effect of the oceanic heat storage and evaporation terms (0.11 K), respectively. The largest warming associated with the oceanic heat storage term is found in the tropical Pacific and Indian Oceans, with relatively weaker warming over the tropical Atlantic Ocean. The increase in atmospheric moisture adds another 0.1 K to the global surface warming, but the enhancement in tropical convections acts to reduce the surface warming by 0.17 K. The ice-albedo and atmospheric dynamical feedbacks are the two leading factors responsible for the Arctic polar warming amplification (PWA). The increase of atmospheric water vapor over the Arctic region also contributes substantially to the Arctic PWA pattern. © 2017 American Meteorological Society. 资助项目: 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/48888
Appears in Collections: 气候变化与战略
There are no files associated with this item.
作者单位: Department of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, China; Department of Atmospheric Sciences, and Institute of Earth Climate and Environment System, Sun Yat-sen University, Guangzhou, China; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, United States; Department of Earth, Ocean and Atmosphere Science, Florida State University, Tallahassee, FL, United States
Recommended Citation:
Hu X.,Li Y.,Yang S.,et al. Process-based decomposition of the decadal climate difference between 2002-13 and 1984-95[J]. Journal of Climate,2017-01-01,30(12)