As the Asian Water Tower, it’s of great significance to study the precipitation sources of the Qinghai-Tibetan Plateau for water security and water resources utilization in China.In order to study the characteristics of summer moisture transport in the middle of the plateau and understand the regional water cycle.In this paper, the daily data set of China's surface climate data and the HYSPLIT Lagrangian model driven by GDAS data are used to analyze the moisture transport track and the track of different grades of precipitation in summer of 2014 in Naqu area.Using the cluster analysis to get the moisture passages and the paticle tracking analysis to calculate the moisture contribution.The results show that, There are obvious monthly and ten day changes in the moisture transport trajectories in summer, which is mainly caused by the northward advance of summer monsoon.The Indian Ocean, the Arabian Sea, the Bay of Bengal, the Atlantic Ocean and Central Asia are the five main moisture transport passages.There are southern and western paths for light rain and moderate rain, but only southern paths for heavy rain.The moisture transport in the ocean plays a decisive role in the precipitation level.The area with high moisture source one day ago is the Yarlung Zangbo River Basin.The area with high moisture source three days ago is the border between India and Badan.The moisture source of heavy rain is more concentrated than that of light rain and moderate rain.There is a good correspondence between the region of moisture contribution concentration and the end point of moiture trace.In a nutshell, the moisture sources of different grades of precipitation are different.
Yuting ZENG
,
Yu ZHANG
,
Ke ZHOU
,
Yuqi YAO
,
Linfeng YANG
. Analysis on the Source and Transport Characteristics of Moisture in Naqu of the Qinghai-Tibetan Plateau in Summer[J]. Plateau Meteorology, 2020
, 39(3)
: 467
-476
.
DOI: 10.7522/j.issn.1000-0534.2019.00120.
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