| Abrupt summer warming and changes in temperature extremes over Northeast Asia since the mid-1990s: Drivers and physical processes | |
| Dong, Buwen1; Sutton, Rowan T.1; Chen, Wei2; Liu, Xiaodong3; Lu, Riyu2; Sun, Ying4 | |
| 2016-09-01 | |
| 发表期刊 | ADVANCES IN ATMOSPHERIC SCIENCES
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| 卷号 | 33期号:9页码:1005-1023 |
| 文章类型 | Article |
| 摘要 | This study investigated the drivers and physical processes for the abrupt decadal summer surface warming and increases in hot temperature extremes that occurred over Northeast Asia in the mid-1990s. Observations indicate an abrupt increase in summer mean surface air temperature (SAT) over Northeast Asia since the mid-1990s. Accompanying this abrupt surface warming, significant changes in some temperature extremes, characterized by increases in summer mean daily maximum temperature (Tmax), daily minimum temperature (Tmin), annual hottest day temperature (TXx), and annual warmest night temperature (TNx) were observed. There were also increases in the frequency of summer days (SU) and tropical nights (TR). Atmospheric general circulation model experiments forced by changes in sea surface temperature (SST)/sea ice extent (SIE), anthropogenic greenhouse gas (GHG) concentrations, and anthropogenic aerosol (AA) forcing, relative to the period 1964-93, reproduced the general patterns of observed summer mean SAT changes and associated changes in temperature extremes, although the abrupt decrease in precipitation since the mid-1990s was not simulated. Additional model experiments with different forcings indicated that changes in SST/SIE explained 76% of the area-averaged summer mean surface warming signal over Northeast Asia, while the direct impact of changes in GHG and AA explained the remaining 24% of the surface warming signal. Analysis of physical processes indicated that the direct impact of the changes in AA (through aerosol-radiation and aerosol-cloud interactions), mainly related to the reduction of AA precursor emissions over Europe, played a dominant role in the increase in TXx and a similarly important role as SST/SIE changes in the increase in the frequency of SU over Northeast Asia via AA-induced coupled atmosphere-land surface and cloud feedbacks, rather than through a direct impact of AA changes on cloud condensation nuclei. The modelling results also imply that the abrupt summer surface warming and increases in hot temperature extremes over Northeast Asia since the mid-1990s will probably sustain in the next few decades as GHG concentrations continue to increase and AA precursor emissions over both North America and Europe continue to decrease. |
| 关键词 | Surface Warming Temperature Extremes Global Climate Model Anthropogenic Greenhouse Gas Anthropogenic Aerosol Sst/sie Northeast Asia Mid-1990s |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1007/s00376-016-5247-3 |
| 关键词[WOS] | SURFACE AIR-TEMPERATURE ; SULFUR-DIOXIDE EMISSIONS ; EASTERN CHINA ; ATMOSPHERIC CIRCULATION ; GLOBAL PRECIPITATION ; SPATIAL VARIABILITY ; AEROSOL EMISSIONS ; HOT SUMMERS ; PART I ; CLIMATE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:000380263100001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/5697 |
| 专题 | 古环境研究室 |
| 作者单位 | 1.Univ Reading, Dept Meteorol, Natl Ctr Atmospher Sci, Reading RG6 6BB, Berks, England 2.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, Xian 710061, Peoples R China 4.China Meteorol Adm, Natl Climate Ctr, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Buwen,Sutton, Rowan T.,Chen, Wei,et al. Abrupt summer warming and changes in temperature extremes over Northeast Asia since the mid-1990s: Drivers and physical processes[J]. ADVANCES IN ATMOSPHERIC SCIENCES,2016,33(9):1005-1023. |
| APA | Dong, Buwen,Sutton, Rowan T.,Chen, Wei,Liu, Xiaodong,Lu, Riyu,&Sun, Ying.(2016).Abrupt summer warming and changes in temperature extremes over Northeast Asia since the mid-1990s: Drivers and physical processes.ADVANCES IN ATMOSPHERIC SCIENCES,33(9),1005-1023. |
| MLA | Dong, Buwen,et al."Abrupt summer warming and changes in temperature extremes over Northeast Asia since the mid-1990s: Drivers and physical processes".ADVANCES IN ATMOSPHERIC SCIENCES 33.9(2016):1005-1023. |
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