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http://dx.doi.org/10.12652/Ksce.2014.34.4.1151

Summer Precipitation Variability in the Han River Basin within the Context of Global Temperature Gradients  

Jeong, Min-Su (University of Seoul)
Kim, Jong-Suk (University of Seoul)
Moon, Young-Il (University of Seoul)
Hwang, Sung-Hwan (University of Seoul)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.34, no.4, 2014 , pp. 1151-1159 More about this Journal
Abstract
In this study, two global simple indices are used to investigate climate variability and change in observations. Land-Ocean Contrast (LOC) is an index of area-averaged surface temperature contrast between land and ocean. Meridional Temperature Gradient (MTG) is defined as the mean meridional temperature gradient in the Northern Hemisphere from mid to high latitude and sub-tropical zonal bands. These indices have direct or indirect effects on changing in atmospheric circulations and atmospheric moisture transport from north-south or east-west into East Asia (EA). In addition, warm season hydrometeorology in EA is highly associated with water supplies for coupled human and natural systems including drinking water, irrigation, hydropower generation as well as fisheries. Therefore, in this study, we developed an empirical separation approach for summer rainfall from typhoon and monsoon. An exploratory analysis was also conducted to identify the regional patterns of summer monsoon precipitation over the Korean peninsula within the context of changes in different types of temperature gradients. The results show significant and consistent changes in summer monsoon rainfall during the summer season (June-September) in South Korea.
Keywords
LOC; MTG; Summer precipitation; Han river;
Citations & Related Records
연도 인용수 순위
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