In this study, semi-distributed hydrological model studies were carried out with the
Mike11 model in Yuvacik dam Basin. The basin with a drainage area of 257.8 km2 is
located in 12 km South East of Izmit city in Tü / rkiye. The basin is divided into three
sub-basins named as Kirazdere, Kazandere and Serindere where each sub-basin is
represented by its own characteristics. The largest peaks of inflow were observed
when the storm events occur due to both snowmelt and rain. Therefore, observed
flows for the period of 2001-2006 were grouped as daily and hourly storm events
according to the event types such as rainfall, snowmelt or mixed events. Rainfall-
Runoff Model (NAM) module of the model was used for the simulation of daily
snowmelt and rain on snow events and Unit Hydrograph Method (UHM) module
was used for the simulation of hourly rainfall events.
A new methodology is suggested for the determination of Curve Number (CN) of the
sub-basins by using the fractional area and topographic index values combined with
hourly model simulations. The resulting CN values were used in the UHM module
v
and the suggested CN approach has been validated with the classical SCS-CN
approach with GIS analysis.
As a result of the study, the parameters of each sub-basin are calibrated with hourly
and daily model simulations. The resulting flows are compared with the observed
flows where model efficiency is tested with visual and statistical evaluations. The
modeling studies give promising results for the computation of runoff during
different seasons of a year.
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/12608191/index.pdf |
| Date | 01 February 2007 |
| Creators | Keskin, Fatih |
| Contributors | Sorman, Ali Unal |
| Publisher | METU |
| Source Sets | Middle East Technical Univ. |
| Language | English |
| Detected Language | English |
| Type | M.S. Thesis |
| Format | text/pdf |
| Rights | To liberate the content for public access |
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