Analysis on the Characteristics of Exceeding Probability Rainfall Events

Jo, Deok Jun; Jeon, Byeong Hoon

doi:10.9798/kosham.2012.12.2.309

Journal of korean society of hazard mitigation

2012

DOI: 10.9798/kosham.2012.12.2.309

|View full text |Cite

Analysis on the Characteristics of Exceeding Probability Rainfall Events

Deok Jun Jo¹,

Byeong Hoon Jeon²

Abstract: The present paper describes applicability in practice for the design rainfall by the analysis of characteristics of the probability rainfall. In general, the size of hydraulic structures is determined by the rainfall suitability of the design rainfall is very important. To this end, in the last 50 years historical hourly rainfall data for each return period and duration of rainfall issued by more than the probability for rainfall occurrence and rainfall characteristics such as size and periodicity causes were … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2013

2016

Publication Types

Select...

Article5

Relationship

Self Cite0

Independent5

Authors

Journals

Cited by 6 publications

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Estimation of Design Flood for the Gyeryong Reservoir Watershed based on RCP scenarios

Ryu¹,

Kang²,

Song

et al. 2015

Journal of The Korean Society of Agricultural Engineers

View full text Add to dashboard Cite

Along with climate change, the occurrence and severity of natural disasters have been increased globally. In particular, the increase of localized heavy rainfalls have caused severe flood damage. Thus, it is needed to consider climate change into the estimation of design flood, a principal design factor. The main objective of this study was to estimate design floods for an agricultural reservoir watershed based on the RCP (Representative Concentration Pathways) scenarios. Gyeryong Reservoir located in the Geum River watershed was selected as the study area. Precipitation data of the past 30 years (1981 ∼2010; 1995s) were collected from the Daejeon meteorological station. Future precipitation data based on RCP2.6, 4.5, 6.0, 8.5 scenarios were also obtained and corrected their bias using the quantile mapping method. Probability rainfalls of 200-year frequency and PMPs were calculated for three different future spans, i.e. 2011∼2040; 2025s, 2041∼2070; 2055s, 2071∼2100; 2085s. Design floods for different probability rainfalls were calculated using HEC-HMS. As the result, future probability rainfalls increased by 9.5 %, 7.8 % and 22.0 %, also design floods increased by 20.7 %, 5.0 % and 26.9 %, respectively, as compared to the past 1995s and tend to increase over those of 1995s. RCP4.5 scenario, especially, resulted in the greatest increase in design floods, 37.3 %, 36.5 % and 47.1 %, respectively, as compared to the past 1995s. The study findings are expected to be used as a basis to reduce damage caused by climate change and to establish adaptation policies in the future.

show abstract

Estimation of Design Flood for the Gyeryong Reservoir Watershed based on RCP scenarios

Ryu¹,

Kang²,

Song

et al. 2015

Journal of The Korean Society of Agricultural Engineers

View full text Add to dashboard Cite

show abstract

Uncertainty Analysis of Future Design Floods for the Yongdang Reservoir Watershed using Bootstrap Technique

Lee¹,

Kang²,

Jihoon³

et al. 2016

Journal of The Korean Society of Agricultural Engineers

View full text Add to dashboard Cite

To estimate design floods for hydraulic structures, statistical methods has been used in the analysis of rainfall data. However, due to the lack of rainfall data in some regions, it is difficult to apply the statistical methods for estimation of design rainfall. In addition, increased uncertainty of design rainfall arising from the limited rainfall data can become an important factor for determining the design floods. The main objective of this study was to assess the uncertainty of the future design floods under RCP (representative concentration pathways) scenarios using a bootstrap technique. The technique was used in this study to quantify the uncertainty in the estimation of the future design floods. The Yongdang watershed in South Korea, 2,873 ha in size, was selected as the study area. The study results showed that the standard errors of the basin of Yongdang reservoir were calculated as 2.0~6.9 % of probable rainfall. The standard errors of RCP4.5 scenario were higher than the standard errors of RCP8.5 scenario. As the results of estimation of design flood, the ranges of peak flows considered uncertainty were 2.3~7.1 %, and were different each duration and scenario. This study might be expected to be used as one of guidelines to consider when designing hydraulic structures.

show abstract

Estimation of Effective Rainfall Guidance Considering Infiltration Capacity-Rainfall Intensity

Kang¹,

Kim²,

Park³

et al. 2013

Journal of Korean Society of Hazard Mitigation

View full text Add to dashboard Cite

This study investigated the effect of the lag time on the concentration time and the change in effective rainfall depending on the infiltration capacity and rainfall intensity by the status of land use to research the relevance of infiltration capacity-rainfall intensity and the effective rainfall by land categories according to the characteristics of the drainage basin. As a result of analysis, deviation in the lag time is significantly occurring from two hours to nineteen hours and fifty-five minutes depending on the rainfall intensity and the form of the flood hydrograph rising limb is being determined by this. It has been analyzed that the forest land is divided into the region where runoff does not occur even with the rainfall of more than 500 mm/hr and the region where runoff occurs 100% with the rainfall of more than 80 mm/hr and there is an upland field area where runoff does not occur even with the rainfall of more than 120 mm/hr and the area where runoff occurs 100% if the rainfall of more than 20 mm/hr occurs while runoff may occur 100% in the land and rice paddy with the rainfall of 20 mm/hr. As the infiltration capacity varies according to the soil series and status of land use, the objective application of the runoff coefficient of rational method and runoff curve number is needed.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Analysis on the Characteristics of Exceeding Probability Rainfall Events

Cited by 6 publications

References 3 publications

Estimation of Design Flood for the Gyeryong Reservoir Watershed based on RCP scenarios

Estimation of Design Flood for the Gyeryong Reservoir Watershed based on RCP scenarios

Uncertainty Analysis of Future Design Floods for the Yongdang Reservoir Watershed using Bootstrap Technique

Estimation of Effective Rainfall Guidance Considering Infiltration Capacity-Rainfall Intensity

Contact Info

Product

Resources

About