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Summer Temperature over the Tibetan Plateau Modulated by Atlantic Multidecadal Variability
Shi, CM (Shi, Chunming)1; Sun, C (Sun, Cheng)1,2,12; Wu, GC (Wu, Guocan)1; Wu, XC (Wu, Xiuchen)3; Chen, DL (Chen, Deliang)4; Masson-Delmotte, V (Masson-Delmotte, Valerie)5; Li, JP (Li, Jianping)1,2; Xue, JQ (Xue, Jiaqing)6,7; Li, ZS (Li, Zongshan)8; Ji, DY (Ji, Duoying)1; Zhang, J (Zhang, Jing)1; Fan, ZX (Fan, Zexin)9; Shen, MG (Shen, Miaogen)10; Shu, LF (Shu, Lifu)11; Ciais, P (Ciais, Philippe)5
Source PublicationJOURNAL OF CLIMATE

Rapid warming has led to an aggregated environmental degradation over the Tibetan Plateau (TP) in the last few decades, including accelerated glacier retreat, early snowmelt, permafrost degradation, and forest fire occurrence. Attribution of this warming in recent decades has mainly been focused on anthropogenic forcing. Yet, linkages to the Atlantic multidecadal variability (AMV), an essential part of the climate system causing decadal to centennial fluctuations of temperature, remains poorly understood for the TP, especially at long time scales. Using well-replicated tree-ring width records, we reconstructed 358 years of summer minimum temperature (MinT) of the whole TP. This reconstruction matches the recent warming signal recorded since the 1980s, and captures 63% of the variance in 1950-2005 instrumental records. A teleconnection from the North Atlantic to the TP is further identified based in observations and simulations with an atmospheric general circulation model (AGCM). We propose that half of the multidecadal variability of TP summer MinT can be explained by the AMV over the past three and a half centuries. Both observations and AGCM simulations indicate that the AMV warm phase induces a zonal dipole response in sea level pressure across the Atlantic-Eurasia region, with anomalously high surface pressure and corresponding downward atmospheric motion over the TP. We propose that the descending motion during warm AMV phases causes negative rainfall and positive temperature anomalies over the TP. Our findings highlight that the AMV plays a role in the multidecadal temperature variability over the TP.

Subject AreaAtmospheric Sciences
WOS IDWOS:000471935900001
Indexed BySCI
KeywordIce Core Surface-temperature Tropical Atlantic Crust Software North-atlantic Climate-change Oscillation Monsoon Record Implementation
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
Cooperation Status国际
Citation statistics
Document Type期刊论文
Corresponding AuthorSun, C (Sun, Cheng)
Affiliation1.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing, Peoples R China;
2.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao, Shandong, Peoples R China;
3.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China;
4.Univ Gothenburg, Dept Earth Sci, Reg Climate Grp, Gothenburg, Sweden;
5.Inst Pierre Simon Laplace, UVSQ 8212, CNRS, Lab Sci Climat & Environm,UMR,CEA, Gif Sur Yvette, France;
6.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China;
7.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China;
8.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing, Peoples R China;
9.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Mengla, Yunnan, Peoples R China;
10.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing, Peoples R China;
11.Chinese Acad Forestry, Key Lab Forest Ecol & Environm, State Forestry Adm, Inst Forest Ecol Environm & Protect, Beijing, Peoples R China;
12.Minist Nat Resources, Inst Oceanog 2, State Key Lab Satellite Ocean Environm Dynam, Hangzhou, Zhejiang, Peoples R China.
Recommended Citation
GB/T 7714
Shi, CM ,Sun, C ,Wu, GC ,et al. Summer Temperature over the Tibetan Plateau Modulated by Atlantic Multidecadal Variability[J]. JOURNAL OF CLIMATE,2019,32(13):4055-4067.
APA Shi, CM .,Sun, C .,Wu, GC .,Wu, XC .,Chen, DL .,...&Ciais, P .(2019).Summer Temperature over the Tibetan Plateau Modulated by Atlantic Multidecadal Variability.JOURNAL OF CLIMATE,32(13),4055-4067.
MLA Shi, CM ,et al."Summer Temperature over the Tibetan Plateau Modulated by Atlantic Multidecadal Variability".JOURNAL OF CLIMATE 32.13(2019):4055-4067.
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