Advances in Earth Science ›› 2022, Vol. 37 ›› Issue (5): 441-461. doi: 10.11867/j.issn.1001-8166.2022.022

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Meteorological Droughts in the Qinghai-Tibet Plateau: Research Progress and Prospects

Jinsong WANG 1( ), Yubi YAO 2, Ying WANG 1( ), Suping WANG 1, Xiaoyun LIU 1, Yue ZHOU 3, Haolin DU 1, Yu ZHANG 1, Yulong REN 1   

  1. 1.Institute of Arid Meteorology,China Meteorological Administration,Key Laboratory of Arid Climate Change and Disaster Reduction of Gansu Province (China Meteorological Administration),Lanzhou 730020,China
    2.Lanzhou Resources&Environment Voc-Tech University,Lanzhou 730021,China
    3.Hubei Key Laboratory for Heavy Rain Monitoring and Warning Research,Institute of Heavy Rain,China Meteorological Administration,Wuhan 430205,China
  • Received:2021-10-18 Revised:2021-12-19 Online:2022-05-10 Published:2022-05-31
  • Contact: Ying WANG E-mail:wjsgsmb_cn@sina.com;wangyn924@163.com
  • About author:WANG Jinsong (1968-), female, Kaili City, Guizhou Province, Professor. Research areas include climate change in arid area and drought monitoring and early warning. E-mail: wjsgsmb_cn@sina.com
  • Supported by:
    the Second Tibetan Plateau Scientific Expedition and Research Program “Cross-border pollutant investigation and environmental safety”(2019QZKK0605);The Basic Research Innovation Group of Gansu Province “The formation mechanism of drought disaster and its risk warning”(20JR5RA121)

Jinsong WANG, Yubi YAO, Ying WANG, Suping WANG, Xiaoyun LIU, Yue ZHOU, Haolin DU, Yu ZHANG, Yulong REN. Meteorological Droughts in the Qinghai-Tibet Plateau: Research Progress and Prospects[J]. Advances in Earth Science, 2022, 37(5): 441-461.

The Qinghai-Tibet Plateau is a region vulnerable to natural disasters. There are many natural meteorological disasters occurring on the Qinghai-Tibet Plateau, such as snow disasters, droughts, strong winds, thunder and lightning, hail, and floods. Droughts are the most serious type of meteorological disaster in the region, apart from snow. With climate change and the increase in human activities, the losses caused by natural disasters on the Qinghai-Tibet Plateau are increasing over time. Focusing on the regional characteristics of the Qinghai-Tibet Plateau, we evaluate the situation of meteorological droughts. The main results of meteorological drought research are systematically summarized, and the basic temporal and spatial distribution characteristics of meteorological droughts are revealed. The current technical methods for meteorological drought monitoring and forecasting are clarified, and the laws of meteorological drought disaster risk are elucidated in the Qinghai-Tibet Plateau. The results show that the high-incidence areas of droughts are in the north, northeast, southwest, and southeast of the plateau. The high incidence periods were the 1980s and the 2000s. Drought monitoring is mainly conducted based on the drought index and using drought-prediction climate models based on drought influencing factors. The southern part of the northeastern area is a high-risk region for drought disasters impacting agriculture and animal husbandry, while the northeast, southwest, and southeast are higher-risk areas. The alpine grasslands face a higher risk of drought disasters than alpine meadows. Numerical models based on future scenarios revealed that temperature and precipitation may increase in the Qinghai-Tibet Plateau in the 21st century. However, owing to the obvious unevenness in the temporal and spatial distribution of the increased precipitation, the possibility of seasonal and regional meteorological droughts in the future is still remarkably high. Finally, remaining problems in the study of meteorological droughts in the Qinghai-Tibet Plateau, in terms of data, technical methods, and model applications, are discussed. Combining existing local problems and international perspective, the key scientific issues and technical fields concerning meteorological droughts in the Qinghai-Tibet Plateau are highlighted.

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