A comparative study on a simple two-parameter monthly water balance model and the Kajiyama formula for monthly runoff estimation. Issue 7 (18th May 2016)

• Record Type: Journal Article
• Authors: Kim, Soojun; Hong, Seung Jin; Kang, Narae; Noh, Hui Seong; Kim, Hung Soo
• Is Part Of: Hydrological sciences journal. Volume 61:Issue 7(2016)
• Page Start: 1244
• Page End: 1252
• Publication Date: 2016-05-18
• Subjects: kajiyama formula -- water balance -- runoff simulation -- field capacity -- curve number (CN); Hydrology -- Periodicals; 551.4805
• DOI: 10.1080/02626667.2015.1006228
• Languages: English
• ISSNs: 0262-6667

Abstract

ABSTRACT: A two-parameter monthly water balance model to simulate runoff can be used for a water resources planning programme and climate impact studies. However, the model estimates two parameters of transformation of time scale ( c ) and of the field capacity (SC) by a trial-and-error method. This study suggests a modified methodology to estimate the parameters c and SC using the meteorological and geological conditions. The modified model is compared with the Kajiyama formula to simulate the runoff in the Han River and International Hydrological Programme representative basins in South Korea. We show that the estimated c and SC can be used as the initial or optimal values for the monthly runoff simulation study in the model.EDITOR M.C. Acreman;ASSOCIATE EDITOR S. Kanae