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Flood potential estimation of two small vegetated watersheds

Katimon, Ayob and Mohd. Yunos, Mohd. Zulkifli (2003) Flood potential estimation of two small vegetated watersheds. Jurnal Kejuruteraan Awam, 15 (1). pp. 1-15. ISSN 0128-0147


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Real-time (observed) rainfall-runoff data from two small watersheds was use to estimate the flood potential of the area. The first watershed (W-1) is located in a hilly area near Serdang, Selangor. The second watershed (W-2) is a flat land of peat soil located in Pontian, Johor. A SCS (Soil Conservation Service) curve number (CN) technique, which is, considered as one of the GIS-based empirical approach was used in the study to predict daily-event storm runoff. The predicted runoff obtained from SCS-CN technique was compared with those of the observed values and from conventional Rational method. The results show that the SCS-CN technique was over-predicted for cases in W-1 watershed. Conversely, the SCS-CN was under-predicted for W-2 watershed.

Item Type:Article
Uncontrolled Keywords:soil conservation service-curve number, GIS, flood event, rational method
Subjects:T Technology > TD Environmental technology. Sanitary engineering
T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:8306
Deposited By: Zalinda Shuratman
Deposited On:23 Apr 2009 04:34
Last Modified:02 Jun 2010 01:54

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