Qinghai-Tibetan Plateau Vortex is one of the most important weather system on the Qinghai-Tibetan Plateau. Its occurrence and movement have an important impact on weather and climate of the plateau and East Asia. In this study, the activity characteristics of the vortex in 1979-2016 are investigated by Using CFSR high precision reanalysis data and the Qinghai-Tibetan Plateau Vortex almanac. 2008 is selected as the characteristic year. The Qinghai-Tibetan Plateau Vortex objective recognition standard which is based on the vortex artificial recognition standard is formulated and modified by analyzing vortex in 2008. The results show that, the statistics results of the study are similar to the almanac in 2008. The recognized location of the vortex in 2009 is closer to the almanac than the former scholars. In the last 38 years, the vortex has generated 71 per year on average, the amounts first decrease and increase later, but the overall trend shows an increase. The initial location is mainly distributed in the northwest of Plateau. The secondary initial location is in the south of himalaya.
GUAN Liang
,
LI Dongliang
. Objective Identifying and Activity Characteristics of Qinghai-Tibetan Plateau Vortex[J]. Plateau Meteorology, 2019
, 38(1)
: 55
-65
.
DOI: 10.7522/j.issn.1000-0534.2018.00067
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