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http://dx.doi.org/10.15681/KSWE.2014.30.1.060

Evaluation and Comparison of Four Streamflow Record Extension Techniques for Namgang Dam Basin  

Kim, Gyeong-Hoon (Nakdong River Environment Research Center, National Institute of Environmental Research)
Jung, Kang-Young (Nakdong River Environment Research Center, National Institute of Environmental Research)
Yoon, Jong-Su (Nakdong River Environment Research Center, National Institute of Environmental Research)
Cheon, Se-Uk (Nakdong River Environment Research Center, National Institute of Environmental Research)
Publication Information
Journal of Korean Society on Water Environment / v.30, no.1, 2014 , pp. 60-67 More about this Journal
Abstract
In this study, four methods for calculation of continuous daily flow was suggested using short-term or partial recording station of streamflow including missing data. Using these methods, standard flows at the outlet of unit/small basins for the management of total maximum daily loads (TMDLs) in Namgang dam basin were estimated from full-period flow duration curve (FDC). Four methods of extension are described, and their properties are explored. The methods are regression (REG), regression plus noise (RPN), and maintenance of variance extension types 1 and 2 (MOVE.1, MOVE.2). In these methods, the continuous daily flow was calculated using extension equation based on correlation analysis, after conducting the correlation analysis between historic record of streamflow and long-term recording station (a base station). Finally the best optimal method was selected as the MOVE.2, and the standard flows in the abundant, ordinary, low and drought flow estimated from FDC was evaluated using MOVE.2 in unit/small basins.
Keywords
MOVE.1; MOVE.2; REG; RPN; Streamflow record extension technique; TMDLs;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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