Weakened and Lowered Sensitivity of Extreme Precipitation Over the Global Land Monsoon Regions During the Last Glacial Maximum
Abstract The Last Glacial Maximum (LGM) provides an opportunity to estimate how extreme precipitation may respond to large radiative forcing and hence the constraints for its future behavior. Using daily outputs from the Paleoclimate Modeling Intercomparison Project, we illustrate a decrease in extr...
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| Format: | Article |
| Language: | English |
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Wiley
2024-12-01
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| Series: | Geophysical Research Letters |
| Online Access: | https://doi.org/10.1029/2024GL110867 |
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| _version_ | 1850126659929243648 |
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| author | Xiaohan Kong Qing Yan Ting Wei |
| author_facet | Xiaohan Kong Qing Yan Ting Wei |
| author_sort | Xiaohan Kong |
| collection | DOAJ |
| description | Abstract The Last Glacial Maximum (LGM) provides an opportunity to estimate how extreme precipitation may respond to large radiative forcing and hence the constraints for its future behavior. Using daily outputs from the Paleoclimate Modeling Intercomparison Project, we illustrate a decrease in extreme precipitation intensity over the global monsoon regions during the LGM relative to preindustrial, accompanied by increased extreme precipitation frequency, although regional differences exist. The weakened extreme precipitation is dominated by the thermodynamics (∼92%) linked to change in temperature, with the dynamic component linked to change in vertical velocity contributing to regional differences. Furthermore, we show a ∼3.6% decrease in extreme precipitation per 1°C cooling during the LGM, lower than the sensitivity (∼5%/°C) in future warming scenarios. Our results are in line with the proxies‐based drier conditions and lower equilibrium climate sensitivity during the LGM, and may advance understanding of extreme precipitation variation in a warmer future. |
| format | Article |
| id | doaj-art-06450fa4be8c4a54b6f5073c57e7f947 |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-06450fa4be8c4a54b6f5073c57e7f9472025-08-20T02:33:52ZengWileyGeophysical Research Letters0094-82761944-80072024-12-015123n/an/a10.1029/2024GL110867Weakened and Lowered Sensitivity of Extreme Precipitation Over the Global Land Monsoon Regions During the Last Glacial MaximumXiaohan Kong0Qing Yan1Ting Wei2Nansen‐Zhu International Research Centre Institute of Atmospheric Physics Chinese Academy of Sciences Beijing ChinaNansen‐Zhu International Research Centre Institute of Atmospheric Physics Chinese Academy of Sciences Beijing ChinaState Key Laboratory of Severe Weather Chinese Academy of Meteorological Sciences Beijing ChinaAbstract The Last Glacial Maximum (LGM) provides an opportunity to estimate how extreme precipitation may respond to large radiative forcing and hence the constraints for its future behavior. Using daily outputs from the Paleoclimate Modeling Intercomparison Project, we illustrate a decrease in extreme precipitation intensity over the global monsoon regions during the LGM relative to preindustrial, accompanied by increased extreme precipitation frequency, although regional differences exist. The weakened extreme precipitation is dominated by the thermodynamics (∼92%) linked to change in temperature, with the dynamic component linked to change in vertical velocity contributing to regional differences. Furthermore, we show a ∼3.6% decrease in extreme precipitation per 1°C cooling during the LGM, lower than the sensitivity (∼5%/°C) in future warming scenarios. Our results are in line with the proxies‐based drier conditions and lower equilibrium climate sensitivity during the LGM, and may advance understanding of extreme precipitation variation in a warmer future.https://doi.org/10.1029/2024GL110867 |
| spellingShingle | Xiaohan Kong Qing Yan Ting Wei Weakened and Lowered Sensitivity of Extreme Precipitation Over the Global Land Monsoon Regions During the Last Glacial Maximum Geophysical Research Letters |
| title | Weakened and Lowered Sensitivity of Extreme Precipitation Over the Global Land Monsoon Regions During the Last Glacial Maximum |
| title_full | Weakened and Lowered Sensitivity of Extreme Precipitation Over the Global Land Monsoon Regions During the Last Glacial Maximum |
| title_fullStr | Weakened and Lowered Sensitivity of Extreme Precipitation Over the Global Land Monsoon Regions During the Last Glacial Maximum |
| title_full_unstemmed | Weakened and Lowered Sensitivity of Extreme Precipitation Over the Global Land Monsoon Regions During the Last Glacial Maximum |
| title_short | Weakened and Lowered Sensitivity of Extreme Precipitation Over the Global Land Monsoon Regions During the Last Glacial Maximum |
| title_sort | weakened and lowered sensitivity of extreme precipitation over the global land monsoon regions during the last glacial maximum |
| url | https://doi.org/10.1029/2024GL110867 |
| work_keys_str_mv | AT xiaohankong weakenedandloweredsensitivityofextremeprecipitationoverthegloballandmonsoonregionsduringthelastglacialmaximum AT qingyan weakenedandloweredsensitivityofextremeprecipitationoverthegloballandmonsoonregionsduringthelastglacialmaximum AT tingwei weakenedandloweredsensitivityofextremeprecipitationoverthegloballandmonsoonregionsduringthelastglacialmaximum |