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http://dx.doi.org/10.12652/Ksce.2014.34.5.1409

Sensitivity Analysis of Hydrogeologic Parameters by Groundwater Table Fluctuation Model in Jeju Island  

Kim, Nam Won (Korea Institute of Civil Engineering and Building Technology)
Kim, Youn Jung (Korea Institute of Civil Engineering and Building Technology)
Chung, Il-Moon (Korea Institute of Civil Engineering and Building Technology)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.34, no.5, 2014 , pp. 1409-1420 More about this Journal
Abstract
In this work, we have carried out a sensitivity analysis of hydrogeologic parameters such as reaction factor and drainable pore space in groundwater table fluctuation model and have found characteristics of parameter distribution according to the altitude. We found that drainable pore space which is hydrogeologic parameter of aquifer didn't show any trend with altitude while reaction factor which is groundwater flow characteristic showed clear trend with altitude. To find a sensitivity of parameters, we compared RMSE of estimated groundwater recharges by using the mean value and linear relationship of parameters. As results, the linear equation derived for entire watersheds could be applied to estimate parameters for ungauged watershed. Furthermore, the features of parameter distribution can be used to predict hydrogeologic parameter in ungauged watersheds and it is expected that those features could be used for a basic data for groundwater modeling.
Keywords
Groundwater level; Recharge; Sensitivity analysis; Groundwater table fluctuation model;
Citations & Related Records
Times Cited By KSCI : 10  (Citation Analysis)
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