Advanced SearchSearch Tips
Rainfall-Runoff Characteristics in a Jeju Stream considering Antecedent Precipitation
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Rainfall-Runoff Characteristics in a Jeju Stream considering Antecedent Precipitation
Yang, Sung-Kee; Kim, Dong-Su; Jung, Woo-Yul;
  PDF(new window)
The rainfall-runoff characteristics in Jeju Island significantly differ from those in inland, due to highly permeable geologic features driven by volcanic island. Streams are usually sustained in the dry conditions and thereby the rainfall-runoff characteristics changes in terms of initiating stream discharge and its types, depending highly on the antecedent precipitation. Among various the rainfall-runoff characteristics, lag time mainly used for flood warning system in river and direct runoff ratio for determining water budget to estimate groundwater recharge quantity are practically crucial. They are expected to vary accordingly with the given antecedent precipitation. This study assessed the lag time in the measured hydrograph and direct runoff ratio, which are especially in the upstream watershed having the outlet as Dongsan bridge of Han stream, Jeju, based upon several typhoon events such as Khanun, Bolaven, Tembin, Sanba as well as a specific heavy rainfall event in August 23, 2012. As results, considering that the lag time changed a bit over the rainfall events, the averaged lag time without antecedent precipitation was around 1.5 hour, but it became increased with antecedent precipitation. Though the direct run-off ratio showed similar percentages (i.e., 23%)without antecedent precipitation, it was substantially increased up to around 45% when antecedent precipitation existed. In addition, the direct run-off ration without antecedent precipitation was also very high (43.8%), especially when there was extremely heavy rainfall event in the more than five hundreds return period such as typhoon Sanba.
Lag time;Direct runoff-ratio;Antecedent precipitation;Rainfall-runoff characteristics;Jeju stream;
 Cited by
Assessing Unit Hydrograph Parameters and Peak Runoff Responses from Storm Rainfall Events: A Case Study in Hancheon Basin of Jeju Island,;;;

Journal of Environmental Science International, 2015. vol.24. 4, pp.437-447 crossref(new window)
통계적 기법을 적용한 외도천의 단위유량도 제안,이준호;양성기;정우열;

Journal of Environmental Science International, 2015. vol.24. 4, pp.393-401 crossref(new window)
제주도 하천의 중대가리나무 식생,최병기;류태복;김종원;

생태와환경, 2015. vol.48. 1, pp.68-76 crossref(new window)
Chung, I., Lee, J., Kim, J., Na, H., Kim, N., 2011, Development of Threshold Runoff Simulation Method for Runoff Analysis of Jeju Island, Journal of the environmental sciences, 20(10), 1347-1355. crossref(new window)

Jeju province and K-Water, 2003, Integrated Hydrogeologic and groundwater survey in Jeju island III.

Ji, H., Koh, B., Yoon, K., Lee, S., Ahn, S., 2007, Investigation of disaster driven factors and permanent counteracts for Typhoon Nari, Magazine of Korea water resources association, 49(9), 29-35.

Kang, Y., Kim, B., Park, S., Choi, H., 2013, Estimation of Effective Rainfall Guidance Considering Infiltration Capacity-Rainfall Intensity, Journal of KOSHAM, 13(1), 303-308. crossref(new window)

Kim, E., Choi, H., 2011, Estimation of flood index for ungaged small watershed using rainfall-runoff characteristics, 44(2), 34-42.

Koh, K., 2006, Characteristics of groundwater and water resource management in Jeju Island (1), Magazine of Korea water resources association, 39(7), 73-80.

Lee, B., Choi, J., Choi, Y., Bae, D., 2012, Validation of Real-Time River Flow Forecast Using AWS Rainfall Data, Journal of Korea Water Resource Association, 45(6), 607-616. crossref(new window)

Lee, J., 2005, Hydrology, Goomibook.

Mutronix, 2010, Electro-magnetic surface velocimetry for low and medium flow, patent license 10-2010-89895.

Ott, 2000, Radar sensor for contact free measurement of surface wave level, Kalesto.

Yang, S., Kim, D., Yu, K., Kang, M., Jeong, W., Lee, J., Kim, Y., You, H., 2010, Comparison of Flood Discharge and Velocity Measurements in a Mountain Stream Using Electromagnetic Wave and Surface Image, Journal of the environmental sciences, 21(6), 739-747. crossref(new window)