首页|Resonance between projected Tibetan Plateau surface darkening and Arctic climate change

Resonance between projected Tibetan Plateau surface darkening and Arctic climate change

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The Tibetan Plateau(TP)exerts a profound influence on global climate over million-year timescales due to its past uplift.However,whether the ongoing climate changes over the TP,particularly the persistent reduction in its local albedo(referred to as"TP surface darkening"),can exert global impacts remains elu-sive.In this study,a state-of-the-art coupled land-atmosphere global climate model has been employed to scrutinize the impact of TP darkening on polar climate changes.Results indicate that the projected TP darkening has the potential to generate a stationary Rossby wave train,thereby modulating the atmo-spheric circulation in the high-latitudes of the Northern Hemisphere and instigating a dipole-like surface air temperature anomaly pattern around the Arctic region.An additional experiment suggests that the projected Arctic warming may in return warm the TP,thus forming a bi-directional linkage between these two climate systems.Given their association with vast ice reservoirs,the elucidation of this mech-anism in our study is crucial in advancing our comprehension of Earth system climate projections.

Tibetan PlateauHigh-latitude Northern HemisphereArcticClimate changeAlbedoSurface darkening

Shuchang Tang、Shilong Piao、David M.Holland、Fei Kan、Tao Wang、Tandong Yao、Xichen Li

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Sino-French Institute for Earth System Science,College of Urban and Environmental Sciences,Peking University,Beijing 100871,China

State Key Laboratory of Tibetan Plateau Earth System,Resources and Environment,Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100085,China

Courant Institute of Mathematical Sciences,New York University,New York,NY 0711,USA

Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China

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Second Tibetan Plateau Scientific Expedition and Research ProgramNational Natural Science Foundation of ChinaXplorer Prize

2019QZKK020841988101

2024

科学通报(英文版)
中国科学院

科学通报(英文版)

CSTPCD
ISSN:1001-6538
年,卷(期):2024.69(3)
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