Enhanced precipitation responses over the Tibetan Plateau following future Tambora-size volcanic eruption
Hydroclimate over the Tibetan Plateau (TP) notably influences the eco-environment of the Northern Hemisphere. Given its high elevation and complex topography, the climate in the TP shows a high sensitivity to anthropogenic warming and volcanic-induced cooling. The mechanism by which a future volcani...
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KeAi Communications Co., Ltd.
2024-10-01
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| Series: | Advances in Climate Change Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674927824001497 |
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| author | Xin-Jun Gan Lin-Shan Yang Meng Zuo Fei Liu Chao-Chao Gao |
| author_facet | Xin-Jun Gan Lin-Shan Yang Meng Zuo Fei Liu Chao-Chao Gao |
| author_sort | Xin-Jun Gan |
| collection | DOAJ |
| description | Hydroclimate over the Tibetan Plateau (TP) notably influences the eco-environment of the Northern Hemisphere. Given its high elevation and complex topography, the climate in the TP shows a high sensitivity to anthropogenic warming and volcanic-induced cooling. The mechanism by which a future volcanic or similar radiative perturbation affects precipitation in the TP under an anthropogenic warming climate must be addressed not only to enable regional adaptation but deepen our understanding of how a climate system evolves under such a dual force. Here, based on the Community Earth System Model version 1.2 and ensemble simulations under pre-industrial and RCP8.5 scenarios, we showed that a Tambora-sized volcanic perturbation led to severe rainfall reduction over the south TP in the following summer (June–August). Evaporation response accounted for a minor and relatively constant share of precipitation reduction following the Clausius–Clapeyron scaling, whereas dynamic processes triggered an El Niño-like response in the eastern equatorial Pacific, which suppressed the Walker and Hadley circulation and contributed to drying anomalies. Global warming renders the post-Tambora hydroclimate responses with 30% higher severity as a result of the increased climatological moisture content and intensified El Niño response, which enhanced hydroclimate sensitivity and attenuated monsoon circulation. The results illustrate the amplification effect of global warming on the plateau's hydroclimate responses to external forcings, which may add another layer of uncertainty on climate adaptation in this already complex region. |
| format | Article |
| id | doaj-art-133a44c3dd1e483c88bc24d42a8c450c |
| institution | Kabale University |
| issn | 1674-9278 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | KeAi Communications Co., Ltd. |
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| series | Advances in Climate Change Research |
| spelling | doaj-art-133a44c3dd1e483c88bc24d42a8c450c2024-11-25T04:40:57ZengKeAi Communications Co., Ltd.Advances in Climate Change Research1674-92782024-10-01155845858Enhanced precipitation responses over the Tibetan Plateau following future Tambora-size volcanic eruptionXin-Jun Gan0Lin-Shan Yang1Meng Zuo2Fei Liu3Chao-Chao Gao4College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou 310058, ChinaCollege of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou 310058, ChinaState Key Laboratory of Severe Weather and Institute of Tibetan Plateau Meteorology, Chinese Academy of Meteorological Sciences, Beijing 100081, ChinaSchool of Atmospheric Sciences & Key Laboratory of Tropical Atmosphere–Ocean System Ministry of Education, Sun Yat-sen University, Zhuhai 519082, China; Southern Marine Science and Engineering Guangdong Laboratory, Sun Yat-sen University, Zhuhai 519082, China; Corresponding author. School of Atmospheric Sciences & Key Laboratory of Tropical Atmosphere–Ocean System Ministry of Education, Sun Yat-sen University, Zhuhai 519082, China.College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou 310058, China; Corresponding author. College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China.Hydroclimate over the Tibetan Plateau (TP) notably influences the eco-environment of the Northern Hemisphere. Given its high elevation and complex topography, the climate in the TP shows a high sensitivity to anthropogenic warming and volcanic-induced cooling. The mechanism by which a future volcanic or similar radiative perturbation affects precipitation in the TP under an anthropogenic warming climate must be addressed not only to enable regional adaptation but deepen our understanding of how a climate system evolves under such a dual force. Here, based on the Community Earth System Model version 1.2 and ensemble simulations under pre-industrial and RCP8.5 scenarios, we showed that a Tambora-sized volcanic perturbation led to severe rainfall reduction over the south TP in the following summer (June–August). Evaporation response accounted for a minor and relatively constant share of precipitation reduction following the Clausius–Clapeyron scaling, whereas dynamic processes triggered an El Niño-like response in the eastern equatorial Pacific, which suppressed the Walker and Hadley circulation and contributed to drying anomalies. Global warming renders the post-Tambora hydroclimate responses with 30% higher severity as a result of the increased climatological moisture content and intensified El Niño response, which enhanced hydroclimate sensitivity and attenuated monsoon circulation. The results illustrate the amplification effect of global warming on the plateau's hydroclimate responses to external forcings, which may add another layer of uncertainty on climate adaptation in this already complex region.http://www.sciencedirect.com/science/article/pii/S1674927824001497Tibetan PlateauThe community earth system modelHydrological responseTambora eruptionEl Niño |
| spellingShingle | Xin-Jun Gan Lin-Shan Yang Meng Zuo Fei Liu Chao-Chao Gao Enhanced precipitation responses over the Tibetan Plateau following future Tambora-size volcanic eruption Advances in Climate Change Research Tibetan Plateau The community earth system model Hydrological response Tambora eruption El Niño |
| title | Enhanced precipitation responses over the Tibetan Plateau following future Tambora-size volcanic eruption |
| title_full | Enhanced precipitation responses over the Tibetan Plateau following future Tambora-size volcanic eruption |
| title_fullStr | Enhanced precipitation responses over the Tibetan Plateau following future Tambora-size volcanic eruption |
| title_full_unstemmed | Enhanced precipitation responses over the Tibetan Plateau following future Tambora-size volcanic eruption |
| title_short | Enhanced precipitation responses over the Tibetan Plateau following future Tambora-size volcanic eruption |
| title_sort | enhanced precipitation responses over the tibetan plateau following future tambora size volcanic eruption |
| topic | Tibetan Plateau The community earth system model Hydrological response Tambora eruption El Niño |
| url | http://www.sciencedirect.com/science/article/pii/S1674927824001497 |
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