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

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

doi:10.1002/hyp.8072

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

Jae H. Ryu, Joo Heon Lee, Sangman Jeong, Seon K. Park, Kyuha Han

Department of Environmental Science & Engineering

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

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 m³/s as opposed to the historic 7Q10 flow of 1·54 m³/s given at extreme climate scenarios.

Original language	English
Pages (from-to)	3437-3447
Number of pages	11
Journal	Hydrological Processes
Volume	25
Issue number	22
DOIs	https://doi.org/10.1002/hyp.8072
State	Published - 30 Oct 2011

Keywords

Climate change
Frequency analysis
Hydrologic model
Low flow
SWAT
Water resources management

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/hyp.8072

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

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 m3/s as opposed to the historic 7Q10 flow of 1·54 m3/s given at extreme climate scenarios.",

keywords = "Climate change, Frequency analysis, Hydrologic model, Low flow, SWAT, Water resources management",

author = "Ryu, {Jae H.} and Lee, {Joo Heon} and Sangman Jeong and Park, {Seon K.} and Kyuha Han",

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T1 - The impacts of climate change on local hydrology and low flow frequency in the Geum River Basin, Korea

AU - Ryu, Jae H.

AU - Lee, Joo Heon

AU - Jeong, Sangman

AU - Park, Seon K.

AU - Han, Kyuha

PY - 2011/10/30

Y1 - 2011/10/30

N2 - 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 m3/s as opposed to the historic 7Q10 flow of 1·54 m3/s given at extreme climate scenarios.

AB - 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 m3/s as opposed to the historic 7Q10 flow of 1·54 m3/s given at extreme climate scenarios.

KW - Climate change

KW - Frequency analysis

KW - Hydrologic model

KW - Low flow

KW - SWAT

KW - Water resources management

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

Abstract

Keywords

UN SDGs

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