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Volume 15
Issue 3
10.3390/rs15030735
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Article

Dominant Contribution of South Asia Monsoon to External Moisture for Extreme Precipitation Events in Northern Tibetan Plateau

by
Yan Wang
1,*,
Kun Yang
2,3,
Wenyu Huang
2,
Tianpei Qiu
2 and
Binbin Wang
3
1
Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Science and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
2
Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Institute for Global Change Studies, Tsinghua University, Beijing 100084, China
3
State Key Laboratory of Tibetan Plateau Earth System and Resource Environment, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
*
Author to whom correspondence should be addressed.
Remote Sens. 2023, 15(3), 735; https://doi.org/10.3390/rs15030735
Submission received: 9 December 2022 / Revised: 21 January 2023 / Accepted: 24 January 2023 / Published: 27 January 2023
(This article belongs to the Special Issue "Atmospheric Environmental Remote Sensing Society (AERSS)": Celebrating the Establishment)
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Abstract

Numerous previous studies have pointed out that the South Asia monsoon (SAM) contributes most moisture to the southern Tibetan Plateau, whilst the moisture over the Northern Tibetan Plateau (NTP) is supplied by the westerlies, but the moisture sources for extreme precipitation events remain unclear. In this study, the tracking of external moisture sources was performed on ten extreme precipitation events over each of six target subregions of the NTP during the summer of 2010–2018. We found that the SAM provided most of the external moisture for extreme precipitation events in the NTP, except for the largest contribution from East Asia to extreme precipitation in the easternmost subregion. The moisture carried by westerly winds is the second foreign source over the western NTP. In addition, more than 40% of the NTP extreme precipitation events occurred under the synergy of weak westerlies and enhanced SAM, and these events have a longer duration than others. Thus, SAM plays a key role in moisture transport for the extreme precipitation events over the NTP, even though its contribution to the climatological moisture is not significant.
Keywords: moisture transport; South Asia monsoon; westerlies; extreme precipitation; Northern Tibetan Plateau moisture transport; South Asia monsoon; westerlies; extreme precipitation; Northern Tibetan Plateau

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MDPI and ACS Style

Wang, Y.; Yang, K.; Huang, W.; Qiu, T.; Wang, B. Dominant Contribution of South Asia Monsoon to External Moisture for Extreme Precipitation Events in Northern Tibetan Plateau. Remote Sens. 2023, 15, 735. https://doi.org/10.3390/rs15030735

AMA Style

Wang Y, Yang K, Huang W, Qiu T, Wang B. Dominant Contribution of South Asia Monsoon to External Moisture for Extreme Precipitation Events in Northern Tibetan Plateau. Remote Sensing. 2023; 15(3):735. https://doi.org/10.3390/rs15030735

Chicago/Turabian Style

Wang, Yan, Kun Yang, Wenyu Huang, Tianpei Qiu, and Binbin Wang. 2023. "Dominant Contribution of South Asia Monsoon to External Moisture for Extreme Precipitation Events in Northern Tibetan Plateau" Remote Sensing 15, no. 3: 735. https://doi.org/10.3390/rs15030735

APA Style

Wang, Y., Yang, K., Huang, W., Qiu, T., & Wang, B. (2023). Dominant Contribution of South Asia Monsoon to External Moisture for Extreme Precipitation Events in Northern Tibetan Plateau. Remote Sensing, 15(3), 735. https://doi.org/10.3390/rs15030735

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