By using NCEP/NCAR reanalysis data, historic weather maps and Tibetan Plateau vortex and shear line yearbooks from 1998 to 2012, on basis of investigation and analysis of the sustained departure Plateau vortexes (SDPVs) with strong influence and their puissant period general circulation and weather systems affected them. The SDPVs are sorted into four types. Furthermore, the composite analysis and comparison analysis of physical field are carried out of different SDPVs with strong influence. The research shows:The SDPVs with strong influence of east blocking with shearing in two highs type has the greatest influence to China rainfall and mainly influences the Hetao area. The shearline type, tropical low impact type and foreside low trough type mainly influence areas are respectively the Huanghuai valley, southwest region, Changjiang river valley. The SDPVs with strong influence is not relied on the north of 40oN circulation after moved out of the plateau. They are mainly influenced by the interaction of middle level tropospheric western wind weather systems, sub-tropical weather systems and tropical weather systems near the SDPVs with strong influence. The middle tropospheric level large scale conditions of sustained departure plateau vortex types and the differences between them are revealed.
YU Shuhua
,
GAO Wenliang
,
PENG Jun
. Circulation Features of Sustained Departure Plateau Vortex at Middle Tropospheric Level[J]. Plateau Meteorology, 2015
, 34(6)
: 1540
-1555
.
DOI: 10.7522/j.issn.1000-0534.2014.00134
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