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Advances in Polar Science 2020年第1期31卷 55-63页

作者： HAN Zhe LI Shuanglin CAS Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Nansen-Zhu International Research Center(NZC) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China China Univercity of Geosciences Wuhan 430074China

This study investigated atmospheric responses in mid late winter and early spring to sea ice loss in the Barents and Kara seas using regressions of the January March mean atmosphere on Barents and Kara sea ice area in November and December.Similar atmospheric circulation responses were obtained from reanalysis data and multimodel ensemble results from the Coupled Model Intercomparison Project Phase 5,i.e.,sea ice anomalies are the dominant factor driving the overlying atmosphere.The results showed that an Arctic Asia dipole structure,with opposite anomalies over the mid-latitudes of Asia and over the adjoining Arctic,appears to be the key atmospheric circulation anomaly influencing the East Asian climate in mid late winter and early spring.

关键词： winter atmospheric circulation Arctic Asia dipole sea ice loss Barents and Kara seas

大西洋多年代际振荡对冬季乌拉尔山地区季节内变率的影响（英文）

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Atmospheric and Oceanic Science Letters 2018年第6期11卷 445-453页

作者： LI Shuanglin li Ding CHEN Ying Institute of Atmospheric Physics Chinese Academy of SciencesBeijingChina College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijingChina Joint Center for Global Change Studies(JCGCS) BeijingChina dShanxi Climate Center Shanxi Provincial Meteorological AdministrationTaiyuanChina Shanxi Climate Center Shanxi Provincial Meteorological AdministrationTaiyuanChina

利用多套再分析资料,结合大气环流模式试验,研究了大西洋海温多年代振荡(AMO)对冬季乌拉尔山地区上空大气季节内变率的影响。结果发现:AMO暖位相增强北大西洋上空大气季节内活动,有利于乌拉尔大气季节内变率大值中心向南移动,使得北部... 详细信息

利用多套再分析资料,结合大气环流模式试验,研究了大西洋海温多年代振荡(AMO)对冬季乌拉尔山地区上空大气季节内变率的影响。结果发现:AMO暖位相增强北大西洋上空大气季节内活动,有利于乌拉尔大气季节内变率大值中心向南移动,使得北部大气季节内活动减弱,而南部增强。相比较而言,AMO暖位相期间乌拉尔山上空强大气季节内活动个例明显少于冷位相期间,但不同位相期间季节内活动的发展演变过程并没有明显差异。机制上,AMO通过在北大西洋上空引起热力异常,影响大气准静止波活动,进而调制乌拉尔季节内变率。

关键词：大西洋多年代振荡(AMO) 调制大气季节内变率大气静止波

Modulation by the Atlantic Multidecadal Oscillation of the intensity of the interannual seesaw between the Somali and Australian cross-equatorial flows

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Atmospheric and Oceanic Science Letters 2017年第4期10卷 306-311页

作者： LI Shuanglin CHEN Ying li Chen College of Atmospheric Sciences Chengdu University of Information and Technology Climate Change Research Center and Nansen-Zhu International Research Centre Institute of Atmospheric Physics Chinese Academy of Sciences College of Earth Science University of Chinese Academy of Sciences

夏季索马里越赤道气流与澳大利亚越赤道气流之间存在翘翘板式的反向变化。本文利用NCEP/NCAR月平均再分析资料(1948–2013),分析了这种翘翘板式反向变化强度的年代际演变特征,并讨论了可能原因。结果表明:越赤道气流之间的反向变化强度... 详细信息

夏季索马里越赤道气流与澳大利亚越赤道气流之间存在翘翘板式的反向变化。本文利用NCEP/NCAR月平均再分析资料(1948–2013),分析了这种翘翘板式反向变化强度的年代际演变特征,并讨论了可能原因。结果表明:越赤道气流之间的反向变化强度在1966年左右和2002年左右分别发生了明显的转折。这种转折与其受ENSO强度的调制有关,在很大程度上可归于大西洋海温长周期年代际振荡(AMO)。因为AMO调制ENSO的强度,故而影响越赤道气流之间翘翘板式反向变化的强度。当AMO处于正(负)位相时,ENSO事件倾向于偏弱(偏强),越赤道气流之间翘翘板式反向变化关系变得相对较弱(较强)。它们三者间的关系在CMIP5历史试验(1860–2005)中依然存在。

关键词：越赤道气流年代际变化 ENSO 大西洋海温长周期年代际振荡(AMO)

The Combined Effects of the Tropical and Extratropical Quasi-biweekly Oscillations on the Record-setting Mei-yu Rainfall in the Summer of 2020

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Advances in Atmospheric Sciences 2023年第4期40卷 663-681,I0002-I0014页

作者： Zhen HUANG shuanglin li Jianying li Chao ZHANG Department of Atmospheric Science/Centre for Severe Weather and Climate and Hydro-geological Hazards China University of GeosciencesWuhan 430074China China Climate Change Research Center Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China State Key Laboratory of Severe Weather(LASW) Chinese Academy of Meteorological SciencesBeijing 100081China

During June-July 2020,the strongest recorded mei-yu rainfall occurred in the middle and lower reaches of the Yangtze River.The rainfall processes exhibited an obvious quasi-biweekly(biweekly in brief)variability,and there are altogether five cycles.It is found that the biweekly rainfall cycle mainly arises from the collaborative effects of biweekly variabilities from both the tropics and extratropics.As for the tropics,the biweekly meridional march and retreat of the western Pacific subtropical high(WPSH)is particularly evident.As for the extratropics,geopotential height anomalies near Lake Baikal are active.The former is attributed to the intensified biweekly activity of the southwest-northeast oriented EastAsian Pacific wave train(EAP)originating from the tropical western Pacific,while the latter is associated with the biweekly activities of the eastward propagating Eurasia mid-high latitudinal wave train and the westward propagating North Pacific wave train.Why the biweekly activities of these wave trains intensified is further diagnosed from the perspective of thermodynamical forcing and also from the modulation of interannual background on intraseasonal variability.It is found that the strongest recorded convection anchoring over the tropical western Indian Ocean(IO)triggers anomalous descent over the tropical western Pacific,which modulates the biweekly activity of the EAP.Meanwhile,the anomalous diabatic heating over the IO causes changes of the meridional thermodynamic contrast across the IO to the high latitudes,which modulates the extratropical wave trains.A further diagnosis of barotropic kinetic energy conversion suggests that the active occurrence of two extratropical biweekly wave trains is attributed to the increased efficiency of energy conversion from basic flow.The westward propagation of the extratropical North Pacific wave train is attributed to the weakened and northshifted upper-level westerly,which is caused by the SST warmth near the Kuroshio extension.

关键词： strongest recorded mei-yu rainfall in summer 2020 quasi-biweekly variability tropical convection westward propagation of the extratropical North Pacific wave train SSTA in the North Pacific

Quantifying the Response Strength of the Southern Stratospheric Polar Vortex to Indian Ocean Warming in Austral Summer

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Advances in Atmospheric Sciences 2014年第2期31卷 492-503页

作者： LI Shuanglin CHEN Xiaoting Climate Change Research Center and Nansen-Zhu International Research Centre Institute of Atmospheric PhysicsChinese Academy of Sciences State Key Laboratory of Severe Weather Chinese Academy of Meteorological Sciences Shaanxi Provincial Meteorological Observatory

A previous multiple-AGCM study suggested that Indian Ocean Warming （IOW） tends to warm and weaken the southern polar vortex.Such an impact is robust because of a qualitative consistency among the five AGCMs used.However,a significant difference exists in the modeled strengths,particularly in the stratosphere,with those in three of the AGCMs （CCM3,CAM3,and GFS） being four to five times as strong as those in the two other models （GFDL AM2,ECHAM5）.As to which case reflects reality is an important issue not only for quantifying the role of tropical ocean warming in the recent modest recovery of the ozone hole over the Antarctic,but also for projecting its future trend.This issue is addressed in the present study through comparing the models＇ climatological mean states and intrinsic variability,particularly those influencing tropospheric signals to propagate upward and reach the stratosphere.The results suggest that differences in intrinsic variability of model atmospheres provide implications for the difference.Based on a comparison with observations,it is speculated that the impact in the real world may be closer to the modest one simulated by GFDL AM2 and ECHAM5,rather than the strong one simulated by the three other models （CCM3,CAM3 and GFS）.In particular,IOW during the past 50 years may have dynamically induced a 1.0℃ warming in the polar lower stratosphere （～100 hPa）,which canceled a fraction of radiative cooling due to ozone depletion.

关键词： southern hemispheric polar vortex SST atmospheric general circulation models ozone depletion

The Asymmetric Connection of SST in the Tasman Sea with Respect to the Opposite Phases of ENSO in Austral Summer

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Advances in Atmospheric Sciences 2022年第11期39卷 1897-1913页

作者： Xueqian SUN shuanglin li Stefan liESS Climate Change Research Center(CCRC) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Department of Atmospheric Science/Centre for Severe Weather and Climate and Hydro-geological Hazards China University of GeosciencesWuhan 430074China College of Earth and Planetary Science University of Chinese Academy of SciencesBeijing 100049China Department of Soil Waterand ClimateUniversity of MinnesotaTwin CitiesSt.Paul MN 55108MinnesotaUSA

This study uses linear regression and composite analyses to identify a pronounced asymmetric connection of sea surface temperature(SST)in the Tasman Sea with the two opposite phases of El Ni?o-Southern Oscillation(ENSO)during austral summer.In El Ni?o years,the SST anomalies(SSTAs)in the Tasman Sea exhibit a dipolar pattern with weak warmth in the northwest and modest cooling in the southeast,while during La Ni?a years the SSTAs exhibit a basin-scale warmth with greater amplitude.Investigations into the underlying mechanism suggest that this asymmetry arises from a mechanism related to oceanic heat transport,specifically the anomalous Ekman meridional heat transport induced by the zonal wind stress anomalies,rather than the surface heat fluxes on the air-sea interface.Further analysis reveals that the asymmetry of oceanic heat transport between El Ni?o and La Ni?a years is driven by the asymmetric atmospheric circulation over the Tasman Sea stimulated by the asymmetric diabatic heating in the tropical Pacific between the two opposite ENSO phases.

关键词： El Ni?o-Southern Oscillation SST in the Tasman Sea asymmetric connection surface heat fluxes oceanic heat transport

The Influence of Regional SSTs on the Interdecadal Shift of the East Asian Summer Monsoon

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Advances in Atmospheric Sciences 2013年第2期30卷 330-340页

作者： FU Jianjian LI Shuanglin Climate Changes Research Center and Nansen-Zhu International Research Centre Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 Key Laboratory of Regional Climate-Environment for East Asia Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029

East Asia has experienced a significant interdecadal climate shift since the late 1970s. This shift was accompanied by a decadal change of global SST. Previous studies have suggested that the decadal shift of global SST background status played a substantial role in such a climatic shift. However, the individual roles of different regional SSTs remain unclear. In this study, we investigated these roles using ensemble experiments of an atmospheric general circulation model, GFDL （Geophysical Fluid Dynamics Laboratory） AM2. Two kinds of ensembles were performed. The first was a control ensemble in which the model was driven with the observed climatological SSTs. The second was an experimental ensemble in which the model was driven with the observed climatological SSTs plus interdecadal SST background shifts in separate ocean regions. The results suggest that the SST shift in the tropics exerted more important influence than those in the extratropics, although the latter contribute to the shift modestly. The variations of summer monsoonal circulation systems, including the South Asian High, the West Pacific Subtropical High, and the lower-level air flow, were analyzed. The results show that, in comparison with those induced by extratropical SSTs, the shifts induced by tropical SSTs bear more similarity to the observations and to the simulations with global SSTs prescribed. In particular, the observed SST shift in the tropical Pacific Ocean, rather than the Indian Ocean, contributed significantly to the shift of East Asian summer monsoon since the 1970s.

关键词： East Asian summer monsoon interdecadal shift SST AGCM

Distinct impacts of two kinds of El Ni?o on precipitation over the Antarctic Peninsula and West Antarctica in austral spring

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Atmospheric and Oceanic Science Letters 2023年第5期16卷 24-30页

作者： Xueyang Chen shuanglin li Chao Zhang Department of Atmospheric Science School of Environmental StudiesChina University of Geosciences Institute of Atmospheric Physics/Climate Change Research Center Chinese Academy of Sciences College of Earth and Planetary Sciences University of the Chinese Academy of Sciences

本文基于多种再分析资料,研究了中部型(CP)和东部型(EP) El Ni?o事件对南半球春季(9-11月)西南极和南极半岛降水的不同影响.结果显示,EP和CP事件对阿蒙森-别林斯高晋海的降水具有相似影响,而对威德尔海,特别是南极半岛的降水影响相反.由... 详细信息

本文基于多种再分析资料,研究了中部型(CP)和东部型(EP) El Ni?o事件对南半球春季(9-11月)西南极和南极半岛降水的不同影响.结果显示,EP和CP事件对阿蒙森-别林斯高晋海的降水具有相似影响,而对威德尔海,特别是南极半岛的降水影响相反.由于EP事件激发两支罗斯贝波列,分别引起罗斯-阿蒙森-别林斯高森海和威德尔海上空的异常反气旋和气旋,从而导致别林斯高晋-威德尔海和南极半岛受到干冷的异常偏南风影响,降水减少.然而,CP事件仅激发一支相对较弱且偏西的罗斯贝波列,分别引起罗斯-阿蒙森海和别林斯高晋-威德尔海上空的异常反气旋和气旋,从而导致南极半岛以西(东)受异常偏南(北)风影响,降水减少(增加).

关键词：降水南极半岛厄尔尼诺类型热带加热罗斯贝波列

Weaker connection between the Atlantic Multidecadal Oscillation and Indian summer rainfall since the mid-1990s

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Atmospheric and Oceanic Science Letters 2018年第1期11卷 37-43页

作者： LUO Fei-Fei LI Shuanglin Tore FUREVIK Nansen-Zhu International Research Centre and Climate Change Research Center Institute of Atmospheric PhysicsChinese Academy of Sciences Department of Atmospheric Science China University of Geosciences Geophysical Institute and Bjerknes Centrefor Climate Research University of Bergen

以前的研究表明在50-60年的时间尺度上,北大西洋多年代际振荡(AMO)对印度夏季降水(ISMR)有重要的调制作用。在观测和模式研究中AMO和ISMR均存在显著的正相关关系。但是,上世纪90年代中期之后,器测资料显示二者的关系变得不显著,甚至表... 详细信息

以前的研究表明在50-60年的时间尺度上,北大西洋多年代际振荡(AMO)对印度夏季降水(ISMR)有重要的调制作用。在观测和模式研究中AMO和ISMR均存在显著的正相关关系。但是,上世纪90年代中期之后,器测资料显示二者的关系变得不显著,甚至表现出相反的位相关系。这表明二者的关系减弱了。这个研究探讨了AMO-ISMR关系减弱的可能物理机制。研究显示印度洋-热带西太平洋海温的显著增暖可能是原因之一。这个增暖使得欧亚大陆和印度洋之间的对流层温度梯度减弱,以及印度次大陆和印度洋之间的海陆热力差异减弱,从而减弱ISMR。

关键词：北大西洋多年代际振荡印度夏季降水关系多年代际变化

Arctic Oscillation Responses to Black Carbon Aerosols Emitted from Major Regions

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Atmospheric and Oceanic Science Letters 2015年第4期8卷 226-232页

作者： WAN Jiang-Hua LI Shuanglin Nansen-Zhu International Research Centre Institute of Atmospheric Physics Chinese Academy of Sciences University of Chinese Academy of Sciences

The responses of the Arctic Oscillation(AO) to global black carbon(BC) and BC emitted from major regions were compared using the atmospheric general circulation model Geophysical Fluid Dynamics Laboratory(GFDL) atmospheric general circulation model(AGCM) Atmospheric Model version 2.1(AM2.1). The results indicated that global BC could induce positive-phase AO responses, characterized by negative responses over the polar cap on 500 h Pa height fields, and zonal mean sea level pressure(SLP) decreasing while zonal wind increasing at 60°, with the opposite responses over midlatitudes. The AO indices distribution also shifted towards positive values. East Asian BC had similar impacts to that of global BC, while the responses to European BC were of opposite sign. South Asian BC and North American BC did not affect the AO significantly. Based on a simple linear assumption, we roughly estimated that the global BC emission increase could explain approximately 5% of the observed positive AO trend of +0.32 per decade during 1960 to 2000.

关键词：黑碳气溶胶北极涛动排放动响应大气环流模式地球物理流体大气环流模型力学实验室