A Case Study for Determination of Hydrological Parameters in HEC HMS In Computing Direct Runoff

Akay, Hüseyin
Baduna Koçyiğit, Müsteyde
Yanmaz, Ali Melih
This study deals with the computation of the direct runoff of a precipitation pattern recorded in a watershed in Western Black Sea Region, Turkey. The aim is to perform a hydrological parameter evaluation using HEC-HMS for a basin with an outlet at Bayıryüzü stream gaging station situated close to Ulus town. The basin is highly mountainous along the rivers and forestry. The basin takes large amounts of rain all year round and the runoff of the basin flows into Ulus stream where more frequent flooding with devastating results are observed in the further downstream area. In order to improve the understanding of the hydrological response of various precipitation patterns in this basin, HEC-HMS, a hydrological model used to simulate hydrological processes in a watershed is applied. In this study, the hydrological model is set up for two flood events recorded in the area, one is used for calibration while the other one is used for validation of the hydrology related parameters of the model. The simulations are found to be encouraging considering that this is a pioneering attempt of using such a model for the area


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Citation Formats
H. Akay, M. Baduna Koçyiğit, and A. M. Yanmaz, “A Case Study for Determination of Hydrological Parameters in HEC HMS In Computing Direct Runoff,” İstanbul, Türkiye, 2016, p. 1, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/84257.