1. Hidrolojik Parametrelerin Pik Debi Üzerindeki Duyarlılıklarının İncelenmesi.
- Author
-
AKAY, Hüseyin
- Abstract
The aim of this study is to investigate the sensitivity of hydrologic parameters on peak discharge. The basin model of Akçay Basin which is ungauged and located in the Western Black Sea Basin was created by using ArcGIS and HECGeo-HMS softwares. Using the soil type and land use maps of the basin, the curve number of the basin was estimated. Time of concentration and storage coefficient of the basin were estimated taking into consideration the characteristics of the basin and the direct runoff was calculated using the HEC-HMS, semi-distributed hydrological model. Since the predicted hydrological parameters contain uncertainty, 10000 numbers of parameters were produced by using Monte Carlo approach by taking uniform, normal and triangular statistical distributions into consideration and using equal coefficient of variation. Peak flow rates were calculated with these parameters, confidence intervals were determined and local sensitivity analyses were performed. Regardless of the statistical distribution, the curve number has the most sensitivity, while the time of concentration has the least sensitivity on the peak discharge. It was also noted that the storage coefficient of the basin which was efficient in transformation of effective precipitation to direct runoff had more sensitivity on the peak flow than the time of concentration. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF