Abstract
In 60 years when the double CO{sub 2} concentration is anticipated the average annual rainfall depth is expected to be increased by 5-10% due to global warming. However, in the water resources area the frequency change of meteorological extremes such as droughts and floods attracts more interests than the increase of annual rainfall amount. Even though recent frequent occurrences of this kind of meteorological extremes are assumed as an indirect proof of global warming, the prediction of its overall tendency has not yet been made. Thus, in this research we propose a possible methodology to be used for its prediction. The methodology proposed is based on the frequency distribution of daily rainfall by Todorovic and Woolhiser(1975), and Katz(1977), where the input parameters are modified to consider the change of monthly or annual rainfall depth and, thus, to result in the change of frequency distribution. We adopt two values(10 mm, 50 mm) as thresholds and investigate the change of occurrence probability due to the change of monthly and annual rainfall depth. These changes do not directly indicate the changes of occurrence probability of floods and droughts, but it may still be a very useful information for their prediction. Finally, the changes
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Yoon, Yong-Nam;
Yoo, Chulsang;
Ahn, Jae-Hyun;
[1]
Lee, Jae-Soo
[2]
- Korea University, Seoul (Korea)
- Jeonju University, Jeonju (Korea)
Citation Formats
Yoon, Yong-Nam, Yoo, Chulsang, Ahn, Jae-Hyun, and Lee, Jae-Soo.
On the change of flood and drought occurrence frequency due to global warming : 2. Estimation of the change in daily rainfall depth distribution due to global warming.
Korea, Republic of: N. p.,
1999.
Web.
Yoon, Yong-Nam, Yoo, Chulsang, Ahn, Jae-Hyun, & Lee, Jae-Soo.
On the change of flood and drought occurrence frequency due to global warming : 2. Estimation of the change in daily rainfall depth distribution due to global warming.
Korea, Republic of.
Yoon, Yong-Nam, Yoo, Chulsang, Ahn, Jae-Hyun, and Lee, Jae-Soo.
1999.
"On the change of flood and drought occurrence frequency due to global warming : 2. Estimation of the change in daily rainfall depth distribution due to global warming."
Korea, Republic of.
@misc{etde_20135552,
title = {On the change of flood and drought occurrence frequency due to global warming : 2. Estimation of the change in daily rainfall depth distribution due to global warming}
author = {Yoon, Yong-Nam, Yoo, Chulsang, Ahn, Jae-Hyun, and Lee, Jae-Soo}
abstractNote = {In 60 years when the double CO{sub 2} concentration is anticipated the average annual rainfall depth is expected to be increased by 5-10% due to global warming. However, in the water resources area the frequency change of meteorological extremes such as droughts and floods attracts more interests than the increase of annual rainfall amount. Even though recent frequent occurrences of this kind of meteorological extremes are assumed as an indirect proof of global warming, the prediction of its overall tendency has not yet been made. Thus, in this research we propose a possible methodology to be used for its prediction. The methodology proposed is based on the frequency distribution of daily rainfall by Todorovic and Woolhiser(1975), and Katz(1977), where the input parameters are modified to consider the change of monthly or annual rainfall depth and, thus, to result in the change of frequency distribution. We adopt two values(10 mm, 50 mm) as thresholds and investigate the change of occurrence probability due to the change of monthly and annual rainfall depth. These changes do not directly indicate the changes of occurrence probability of floods and droughts, but it may still be a very useful information for their prediction. Finally, the changes of occurrence probability were found to be greater when considering the monthly rainfall rather than the annual rainfall, and those in rainy season than those in dry season. (author). 16 refs., 6 tabs., 3 figs.}
journal = []
issue = {6}
volume = {32}
journal type = {AC}
place = {Korea, Republic of}
year = {1999}
month = {Dec}
}
title = {On the change of flood and drought occurrence frequency due to global warming : 2. Estimation of the change in daily rainfall depth distribution due to global warming}
author = {Yoon, Yong-Nam, Yoo, Chulsang, Ahn, Jae-Hyun, and Lee, Jae-Soo}
abstractNote = {In 60 years when the double CO{sub 2} concentration is anticipated the average annual rainfall depth is expected to be increased by 5-10% due to global warming. However, in the water resources area the frequency change of meteorological extremes such as droughts and floods attracts more interests than the increase of annual rainfall amount. Even though recent frequent occurrences of this kind of meteorological extremes are assumed as an indirect proof of global warming, the prediction of its overall tendency has not yet been made. Thus, in this research we propose a possible methodology to be used for its prediction. The methodology proposed is based on the frequency distribution of daily rainfall by Todorovic and Woolhiser(1975), and Katz(1977), where the input parameters are modified to consider the change of monthly or annual rainfall depth and, thus, to result in the change of frequency distribution. We adopt two values(10 mm, 50 mm) as thresholds and investigate the change of occurrence probability due to the change of monthly and annual rainfall depth. These changes do not directly indicate the changes of occurrence probability of floods and droughts, but it may still be a very useful information for their prediction. Finally, the changes of occurrence probability were found to be greater when considering the monthly rainfall rather than the annual rainfall, and those in rainy season than those in dry season. (author). 16 refs., 6 tabs., 3 figs.}
journal = []
issue = {6}
volume = {32}
journal type = {AC}
place = {Korea, Republic of}
year = {1999}
month = {Dec}
}