Journal of Geoscience and Environment Protection

Volume 5, Issue 7 (July 2017)

ISSN Print: 2327-4336   ISSN Online: 2327-4344

Google-based Impact Factor: 0.72  Citations  

Characteristics of South Asia High in Summer in 2010 and Its Relationship with Rainbands in China

HTML  XML Download Download as PDF (Size: 12018KB)  PP. 210-222  
DOI: 10.4236/gep.2017.57016    915 Downloads   1,581 Views  Citations

ABSTRACT

The characteristics of the South Asia high (SAH) and subtropical westerly jets in the summer of 2010 and their relationship with the changes in rainband in China were analyzed. As shown by the results, the SAH in the upper troposphere extended northward relatively late in June 2010. Correspondingly, the subtropical westerly jets on the north side of the SAH jumped northward comparatively late, thus delaying the formation of a strong divergence field in the upper air over the Yangtze-Huaihe River valley. This was one of the main causes for the late onset of plum rains in the Yangtze-Huaihe River valley. In July, there was a vertical structure consisting of upper-level divergence and low-level convergence near the subtropical westerly jets on the north side of the SAH and in the air stream dispersal area on the northeast side of the eastward-extending SAH, which was the dynamic mechanism bringing about frequent and extremely heavy rainstorms during the plum rain period in this year. The SAH in the upper troposphere affected the subtropical high in the lower stratosphere, and thereby led to changes in the main rainband location in China.

Share and Cite:

Cai, X. , Li, Y. , Zhang, X. and Bao, Y. (2017) Characteristics of South Asia High in Summer in 2010 and Its Relationship with Rainbands in China. Journal of Geoscience and Environment Protection, 5, 210-222. doi: 10.4236/gep.2017.57016.

Cited by

[1] Regularity and Irregularity of the seasonal northward march of the East Asian summer wet environment and the influential factors
2021
[2] The long-term variation in the South Asia High intensity measured by 150-hPa eddy geopotential height
2020
[3] Distinct impacts of two types of South Asian highs on East Asian summer rainfall
2020
[4] Relationship between the thermal condition of the Tibetan Plateau and precipitation over the region from eastern Ukraine to North Caucasus during summer
2020
[5] Regularity and irregularity of the seasonal northward march of East Asian summer wet environment and the influential factors
2020
[6] Distinguishing interannual variations and possible impacted factors for the northern and southern mode of South Asia High
2019
[7] 南亚高压与西太平洋副热带高压经纬向位置配置对中国东部夏季降水的影响
2018

Copyright © 2024 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.