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Astronomical and Hydrological Perspective of Mountain Impacts on the Asian Summer Monsoon
The Asian summer monsoon has great socioeconomic impacts. Understanding how the huge Tibetan and Iranian Plateaus affect the Asian summer monsoon is of great scientific value and has far-reaching significance for sustainable global development. One hypothesis considers the plateaus to be a shield fo...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4665198/ https://www.ncbi.nlm.nih.gov/pubmed/26620727 http://dx.doi.org/10.1038/srep17586 |
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author | He, Bian Wu, Guoxiong Liu, Yimin Bao, Qing |
author_facet | He, Bian Wu, Guoxiong Liu, Yimin Bao, Qing |
author_sort | He, Bian |
collection | PubMed |
description | The Asian summer monsoon has great socioeconomic impacts. Understanding how the huge Tibetan and Iranian Plateaus affect the Asian summer monsoon is of great scientific value and has far-reaching significance for sustainable global development. One hypothesis considers the plateaus to be a shield for monsoon development in India by blocking cold-dry northerly intrusion into the tropics. Based on astronomical radiation analysis and numerical modeling, here we show that in winter the plateaus cannot block such a northerly intrusion; while in summer the daily solar radiation at the top of the atmosphere and at the surface, and the surface potential temperature to the north of the Tibetan Plateau, are higher than their counterparts to its south, and such plateau shielding is not needed. By virtue of hydrological analysis, we show that the high energy near the surface required for continental monsoon development is maintained mainly by high water vapor content. Results based on potential vorticity–potential temperature diagnosis further demonstrate that it is the pumping of water vapor from sea to land due to the thermal effects of the plateaus that breeds the Asian continental monsoon. |
format | Online Article Text |
id | pubmed-4665198 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-46651982015-12-03 Astronomical and Hydrological Perspective of Mountain Impacts on the Asian Summer Monsoon He, Bian Wu, Guoxiong Liu, Yimin Bao, Qing Sci Rep Article The Asian summer monsoon has great socioeconomic impacts. Understanding how the huge Tibetan and Iranian Plateaus affect the Asian summer monsoon is of great scientific value and has far-reaching significance for sustainable global development. One hypothesis considers the plateaus to be a shield for monsoon development in India by blocking cold-dry northerly intrusion into the tropics. Based on astronomical radiation analysis and numerical modeling, here we show that in winter the plateaus cannot block such a northerly intrusion; while in summer the daily solar radiation at the top of the atmosphere and at the surface, and the surface potential temperature to the north of the Tibetan Plateau, are higher than their counterparts to its south, and such plateau shielding is not needed. By virtue of hydrological analysis, we show that the high energy near the surface required for continental monsoon development is maintained mainly by high water vapor content. Results based on potential vorticity–potential temperature diagnosis further demonstrate that it is the pumping of water vapor from sea to land due to the thermal effects of the plateaus that breeds the Asian continental monsoon. Nature Publishing Group 2015-12-01 /pmc/articles/PMC4665198/ /pubmed/26620727 http://dx.doi.org/10.1038/srep17586 Text en Copyright © 2015, 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 He, Bian Wu, Guoxiong Liu, Yimin Bao, Qing Astronomical and Hydrological Perspective of Mountain Impacts on the Asian Summer Monsoon |
title | Astronomical and Hydrological Perspective of Mountain Impacts on the Asian Summer Monsoon |
title_full | Astronomical and Hydrological Perspective of Mountain Impacts on the Asian Summer Monsoon |
title_fullStr | Astronomical and Hydrological Perspective of Mountain Impacts on the Asian Summer Monsoon |
title_full_unstemmed | Astronomical and Hydrological Perspective of Mountain Impacts on the Asian Summer Monsoon |
title_short | Astronomical and Hydrological Perspective of Mountain Impacts on the Asian Summer Monsoon |
title_sort | astronomical and hydrological perspective of mountain impacts on the asian summer monsoon |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4665198/ https://www.ncbi.nlm.nih.gov/pubmed/26620727 http://dx.doi.org/10.1038/srep17586 |
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