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Observational and Simulative Study of a Local Severe Precipitation Event Caused by a Cold Vortex over Northeast China
Joint Authors
Liu, Ying
Liang, Zhaoming
Li, Yupeng
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-12-05
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Abstract EN
A severe precipitation event around Changchun-Yongji in Jilin Province, China, during 27–29 July 2010 was investigated, with a focus on the comparative analysis of 2 heavy precipitation episodes.
This was done using NCEP gridded analysis data, intensive surface observations, and radar and satellite measurements.
The Weather Research and Forecast (WRF) model was used to simulate the precipitation process and explore mechanisms for the development and dissipation of the severe precipitation event.
Precipitation in the first stage was induced by the convergence of northwesterly winds at the rear of the cold vortex and southwesterly winds that reached the rainfall region.
However, in the second stage, because of the blockage caused by Changbai Mountain, winds at the bottom of the cold vortex turned from the northwest to the northeast.
These winds strongly converged with the southwesterly winds and continuously triggered new convective clouds, which were associated with cold centers at the surface.
The intensity of the cold center modulated the strength of the convective cells and resulting precipitation quantity.
Furthermore, the local terrain features and direction of the motion of the airflows were critical in triggering convection.
American Psychological Association (APA)
Liu, Ying& Liang, Zhaoming& Li, Yupeng. 2017. Observational and Simulative Study of a Local Severe Precipitation Event Caused by a Cold Vortex over Northeast China. Advances in Meteorology،Vol. 2017, no. 2017, pp.1-18.
https://search.emarefa.net/detail/BIM-1122570
Modern Language Association (MLA)
Liu, Ying…[et al.]. Observational and Simulative Study of a Local Severe Precipitation Event Caused by a Cold Vortex over Northeast China. Advances in Meteorology No. 2017 (2017), pp.1-18.
https://search.emarefa.net/detail/BIM-1122570
American Medical Association (AMA)
Liu, Ying& Liang, Zhaoming& Li, Yupeng. Observational and Simulative Study of a Local Severe Precipitation Event Caused by a Cold Vortex over Northeast China. Advances in Meteorology. 2017. Vol. 2017, no. 2017, pp.1-18.
https://search.emarefa.net/detail/BIM-1122570
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1122570