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KMID : 1024520070160020203
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Journal of the Environmental Sciences
2007 Volume.16 No. 2 p.203 ~ p.210
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Development of the Estimation Model on Daily Pollutant Loads for the Watersheds in the Nakdong River Basin I. Correction and Verification for the Model
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Yoon Young-Sam
Yu Jae-Jeong
Kim Moon-Soo
Lee Hae-Jin
Lee Jun-Bae
Yang Sang-Yong
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Abstract
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The delivery load data obtained from Nakdong river basin are used for developing the model estimating the daily delivery load on the main side streams of Nakdong River. The developed model assesses the daily contamination loads of the main thirteen side streams that contribute to the main stream of Nakdong river. It is developed that the model using the simplified equation that can estimate the daily delivery loads on the side main streams of Nakdong river for a period of having no data of the water quality and flow. The developed model for estimating the daily delivery loads from the main side streams in Nakdong river basin on each item such as BOD, TN, and TP is expressed as Daily delivery load () = Production load . The estimated values obtained by using the model are almost fit to the calculated values (real data) that have been acquired from the thirteen main side streams in Nakdong river basin. The correlation coefficient values, R, that indicate the correlation between the estimated and the calculated show over 0.7 that mean the estimated values from the used model are adapted to the real data except TN values of Nam-river, Hwang-river, Gam-river, We-river. Especially, the correlation of TP values between the estimated and the calculated implies quite a creditable data to use.
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KEYWORD
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Daily delivery loads, Model, Daily runoff, Production loads
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