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http://dx.doi.org/10.17663/JWR.2020.22.3.178

Analysis of Air-water Temperature Elasticity Taking into Account the Confidence Interval in Major Tributary of Nakdong River  

Park, Jaebeom (Daon Solution co., Ltd.)
Kal, Byungseok (Daon Solution co., Ltd.)
Kim, Seongmin (Nakdong River Environment Research Center, National Institute of Environmental Research)
Publication Information
Journal of Wetlands Research / v.22, no.3, 2020 , pp. 178-186 More about this Journal
Abstract
In this study, the elasticity was calculated and sensitivity analysis was performed using air-water temperature data of the major tributaries of the Nakdong River. We developed a nonparametric elasticity analysis technique capable of estimating the confidence interval for elasticity and verifying the hypothesis, and examined its applicability compared to the existing method using the median value. It is analyzed that the elasticity of winter is low and the elasticity of summer and autumn is high, so that the fluctuation of water temperature and water quality according to the fluctuation of air temperature is large. The spatial elasticity tends to be low in the Geumho River area, which is influenced by artificial factors such as sewage treatment plant effluent, small and medium-sized livestock wastewater, and small-scale factory wastewater. Since the elasticity of major tributaries of the Nakdong River is over weak and is reasonable at a significance level of 5%, it was analyzed that the air-water temperature fluctuation caused by climate changes is large.
Keywords
Tributary; Elasticity; Sensitivity; Confidence Interval;
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