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A persistent northern boundary of Indian Summer Monsoon precipitation over Central Asia during the Holocene
Extra-tropical circulation systems impede poleward moisture advection by the Indian Summer Monsoon. In this context, the Himalayan range is believed to insulate the south Asian circulation from extra-tropical influences and to delineate the northern extent of the Indian Summer Monsoon in central Asi...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4865755/ https://www.ncbi.nlm.nih.gov/pubmed/27173918 http://dx.doi.org/10.1038/srep25791 |
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author | Ramisch, Arne Lockot, Gregori Haberzettl, Torsten Hartmann, Kai Kuhn, Gerhard Lehmkuhl, Frank Schimpf, Stefan Schulte, Philipp Stauch, Georg Wang, Rong Wünnemann, Bernd Yan, Dada Zhang, Yongzhan Diekmann, Bernhard |
author_facet | Ramisch, Arne Lockot, Gregori Haberzettl, Torsten Hartmann, Kai Kuhn, Gerhard Lehmkuhl, Frank Schimpf, Stefan Schulte, Philipp Stauch, Georg Wang, Rong Wünnemann, Bernd Yan, Dada Zhang, Yongzhan Diekmann, Bernhard |
author_sort | Ramisch, Arne |
collection | PubMed |
description | Extra-tropical circulation systems impede poleward moisture advection by the Indian Summer Monsoon. In this context, the Himalayan range is believed to insulate the south Asian circulation from extra-tropical influences and to delineate the northern extent of the Indian Summer Monsoon in central Asia. Paleoclimatic evidence, however, suggests increased moisture availability in the Early Holocene north of the Himalayan range which is attributed to an intensification of the Indian Summer Monsoon. Nevertheless, mechanisms leading to a surpassing of the Himalayan range and the northern maximum extent of summer monsoonal influence remain unknown. Here we show that the Kunlun barrier on the northern Tibetan Plateau [~36°N] delimits Indian Summer Monsoon precipitation during the Holocene. The presence of the barrier relocates the insulation effect 1,000 km further north, allowing a continental low intensity branch of the Indian Summer Monsoon which is persistent throughout the Holocene. Precipitation intensities at its northern extent seem to be driven by differentiated solar heating of the Northern Hemisphere indicating dependency on energy-gradients rather than absolute radiation intensities. The identified spatial constraints of monsoonal precipitation will facilitate the prediction of future monsoonal precipitation patterns in Central Asia under varying climatic conditions. |
format | Online Article Text |
id | pubmed-4865755 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-48657552016-05-23 A persistent northern boundary of Indian Summer Monsoon precipitation over Central Asia during the Holocene Ramisch, Arne Lockot, Gregori Haberzettl, Torsten Hartmann, Kai Kuhn, Gerhard Lehmkuhl, Frank Schimpf, Stefan Schulte, Philipp Stauch, Georg Wang, Rong Wünnemann, Bernd Yan, Dada Zhang, Yongzhan Diekmann, Bernhard Sci Rep Article Extra-tropical circulation systems impede poleward moisture advection by the Indian Summer Monsoon. In this context, the Himalayan range is believed to insulate the south Asian circulation from extra-tropical influences and to delineate the northern extent of the Indian Summer Monsoon in central Asia. Paleoclimatic evidence, however, suggests increased moisture availability in the Early Holocene north of the Himalayan range which is attributed to an intensification of the Indian Summer Monsoon. Nevertheless, mechanisms leading to a surpassing of the Himalayan range and the northern maximum extent of summer monsoonal influence remain unknown. Here we show that the Kunlun barrier on the northern Tibetan Plateau [~36°N] delimits Indian Summer Monsoon precipitation during the Holocene. The presence of the barrier relocates the insulation effect 1,000 km further north, allowing a continental low intensity branch of the Indian Summer Monsoon which is persistent throughout the Holocene. Precipitation intensities at its northern extent seem to be driven by differentiated solar heating of the Northern Hemisphere indicating dependency on energy-gradients rather than absolute radiation intensities. The identified spatial constraints of monsoonal precipitation will facilitate the prediction of future monsoonal precipitation patterns in Central Asia under varying climatic conditions. Nature Publishing Group 2016-05-13 /pmc/articles/PMC4865755/ /pubmed/27173918 http://dx.doi.org/10.1038/srep25791 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Ramisch, Arne Lockot, Gregori Haberzettl, Torsten Hartmann, Kai Kuhn, Gerhard Lehmkuhl, Frank Schimpf, Stefan Schulte, Philipp Stauch, Georg Wang, Rong Wünnemann, Bernd Yan, Dada Zhang, Yongzhan Diekmann, Bernhard A persistent northern boundary of Indian Summer Monsoon precipitation over Central Asia during the Holocene |
title | A persistent northern boundary of Indian Summer Monsoon precipitation over Central Asia during the Holocene |
title_full | A persistent northern boundary of Indian Summer Monsoon precipitation over Central Asia during the Holocene |
title_fullStr | A persistent northern boundary of Indian Summer Monsoon precipitation over Central Asia during the Holocene |
title_full_unstemmed | A persistent northern boundary of Indian Summer Monsoon precipitation over Central Asia during the Holocene |
title_short | A persistent northern boundary of Indian Summer Monsoon precipitation over Central Asia during the Holocene |
title_sort | persistent northern boundary of indian summer monsoon precipitation over central asia during the holocene |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4865755/ https://www.ncbi.nlm.nih.gov/pubmed/27173918 http://dx.doi.org/10.1038/srep25791 |
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