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The impacts of climate change on local hydrology and low flow frequency in the Geum River Basin, Korea

✍ Scribed by Jae H. Ryu; Joo Heon Lee; Sangman Jeong; Seon K. Park; Kyuha Han

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
334 KB
Volume
25
Category
Article
ISSN
0885-6087

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✦ Synopsis

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 0Ð03 m 3 /s as opposed to the historic 7Q10 flow of 1Ð54 m 3 /s given at extreme climate scenarios.

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