Strong winter monsoon wind causes surface cooling over India and China in the Late Miocene
Modern Asian winter monsoon characterised by the strong northwesterly wind in East Asia and northeasterly wind in South Asia, has a great impact on the surface temperature of the Asian continent. Its outbreak can result in significant cooling of the monsoon region. However, it is still unclear wheth...
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fttriple:oai:gotriple.eu:10670/1.q368b4 2023-05-15T13:15:02+02:00 Strong winter monsoon wind causes surface cooling over India and China in the Late Miocene Tang, H. Eronen, J. T. Kaakinen, A. Utescher, T. Ahrens, B. Fortelius, M. 2018-09-26 https://doi.org/10.5194/cpd-11-63-2015 https://cp.copernicus.org/preprints/cp-2014-145/ en eng doi:10.5194/cpd-11-63-2015 10670/1.q368b4 https://cp.copernicus.org/preprints/cp-2014-145/ undefined Geographica Helvetica - geography eISSN: 1814-9332 envir geo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ 2018 fttriple https://doi.org/10.5194/cpd-11-63-2015 2023-01-22T16:39:23Z Modern Asian winter monsoon characterised by the strong northwesterly wind in East Asia and northeasterly wind in South Asia, has a great impact on the surface temperature of the Asian continent. Its outbreak can result in significant cooling of the monsoon region. However, it is still unclear whether such an impact existed and is detectable in the deep past. In this study, we use temperature reconstructions from plant and mammal fossil data together with climate model results to examine the co-evolution of surface temperature and winter monsoon in the Late Miocene (11–5 Ma), when a significant change of the Asian monsoon system occurred. We find that a stronger-than-present winter monsoon wind might have existed in the Late Miocene due to the lower Asian orography, particularly the northern Tibetan Plateau and the mountains north of it. This can lead to a pronounced cooling in southern China and northern India, which counteracts the generally warmer conditions in the Late Miocene compared to present. The Late Miocene strong winter monsoon was characterised by a marked westerly component and primarily caused by a pressure anomaly between the Tibetan Plateau and Northern Eurasia, rather than by the gradient between the Siberian High and the Aleutian Low. As a result, the close association of surface temperature with winter monsoon strength on inter-annual scale as observed at present may not have established in the Late Miocene. Text aleutian low Unknown |
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envir geo Tang, H. Eronen, J. T. Kaakinen, A. Utescher, T. Ahrens, B. Fortelius, M. Strong winter monsoon wind causes surface cooling over India and China in the Late Miocene |
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Modern Asian winter monsoon characterised by the strong northwesterly wind in East Asia and northeasterly wind in South Asia, has a great impact on the surface temperature of the Asian continent. Its outbreak can result in significant cooling of the monsoon region. However, it is still unclear whether such an impact existed and is detectable in the deep past. In this study, we use temperature reconstructions from plant and mammal fossil data together with climate model results to examine the co-evolution of surface temperature and winter monsoon in the Late Miocene (11–5 Ma), when a significant change of the Asian monsoon system occurred. We find that a stronger-than-present winter monsoon wind might have existed in the Late Miocene due to the lower Asian orography, particularly the northern Tibetan Plateau and the mountains north of it. This can lead to a pronounced cooling in southern China and northern India, which counteracts the generally warmer conditions in the Late Miocene compared to present. The Late Miocene strong winter monsoon was characterised by a marked westerly component and primarily caused by a pressure anomaly between the Tibetan Plateau and Northern Eurasia, rather than by the gradient between the Siberian High and the Aleutian Low. As a result, the close association of surface temperature with winter monsoon strength on inter-annual scale as observed at present may not have established in the Late Miocene. |
format |
Text |
author |
Tang, H. Eronen, J. T. Kaakinen, A. Utescher, T. Ahrens, B. Fortelius, M. |
author_facet |
Tang, H. Eronen, J. T. Kaakinen, A. Utescher, T. Ahrens, B. Fortelius, M. |
author_sort |
Tang, H. |
title |
Strong winter monsoon wind causes surface cooling over India and China in the Late Miocene |
title_short |
Strong winter monsoon wind causes surface cooling over India and China in the Late Miocene |
title_full |
Strong winter monsoon wind causes surface cooling over India and China in the Late Miocene |
title_fullStr |
Strong winter monsoon wind causes surface cooling over India and China in the Late Miocene |
title_full_unstemmed |
Strong winter monsoon wind causes surface cooling over India and China in the Late Miocene |
title_sort |
strong winter monsoon wind causes surface cooling over india and china in the late miocene |
publishDate |
2018 |
url |
https://doi.org/10.5194/cpd-11-63-2015 https://cp.copernicus.org/preprints/cp-2014-145/ |
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aleutian low |
genre_facet |
aleutian low |
op_source |
Geographica Helvetica - geography eISSN: 1814-9332 |
op_relation |
doi:10.5194/cpd-11-63-2015 10670/1.q368b4 https://cp.copernicus.org/preprints/cp-2014-145/ |
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undefined |
op_doi |
https://doi.org/10.5194/cpd-11-63-2015 |
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