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The impacts of climate change on local hydrology and low flow frequency in the Geum River Basin, Korea
Author(s) -
Ryu Jae H.,
Lee Joo Heon,
Jeong Sangman,
Park Seon K.,
Han Kyuha
Publication year - 2011
Publication title -
hydrological processes
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.222
H-Index - 161
eISSN - 1099-1085
pISSN - 0885-6087
DOI - 10.1002/hyp.8072
Subject(s) - streamflow , environmental science , climate change , precipitation , monsoon , climatology , hydrology (agriculture) , drainage basin , climate model , structural basin , geography , geology , meteorology , oceanography , paleontology , cartography , geotechnical engineering
Abstract The climate sensitive analysis of potential climate change on streamflow has been conducted using a hydrologic model to identify hydrologic variability associated with climate scenarios as a function of perturbed climatic variables (e.g. carbon dioxide, temperature, and precipitation). The interannual variation of water resources availability as well as low flow frequency driven by monsoonal time shifts have been investigated to evaluate the likelihood of droughts in a changing climate. The results show that the timing shift of the monsoon window associated with future climate scenarios clearly affect annual water yield change of − 12 and − 8% corresponding to 1‐month earlier and 1‐month later monsoon windows, respectively. Also, a more severe low flow condition has been predicted at 0·03 m 3 /s as opposed to the historic 7Q10 flow of 1·54 m 3 /s given at extreme climate scenarios. Copyright © 2011 John Wiley & Sons, Ltd.