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Application of GeoWEPP for Determining Sediment Yield and Runoff in the Orcan Creek Watershed in Kahramanmaras, Turkey †

View Article: PubMed Central - PubMed

ABSTRACT

The geo-spatial interface of the WEPP model called GeoWEPP uses digital geo-referenced information integrated with the most common GIS tools to predict sediment yield and runoff. The model determines where and when the sediment yield and runoff occurs and locates possible deposition places. In this study, the sediment yield and runoff from Orcan Creek watershed in Kahramanmaras region was estimated by using GeoWEPP model. To investigate the performance of the model, the sediment yield and runoff results from the GeoWEPP model were compared with the observed monthly data collected from the sample watershed. The average Root Mean Square Errors (RMSE) between observed and predicted average annual sediment yield and runoff were 2.96 and 8.43, respectively. The index of agreement was 0.98 and 0.99 for sediment yield and runoff, respectively, which indicated that the model predictions provided good results.

No MeSH data available.


The location of the study area on topographic map of Turkey.
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f7-sensors-08-01222: The location of the study area on topographic map of Turkey.

Mentions: Orcan Creek Watershed, located in approximately 25 km southeastern of Kahramanmaras, was selected as a study area because it represents the land, soil, and vegetation characteristics of the region (Figure 7). The study area is 490 ha of which 175 ha is forested land, 165 ha is rangeland, and 150 ha is agricultural land. The dominant tree species in the forest are Pinus brutia, Cedrus libani, and Quercus brantii. The average ground elevation and average-slope were 957 m and 34 %, respectively. The average length of watershed is 20 km and the width of watershed is about 2.5 km. The annual precipitation of study area is approximately 730 mm.


Application of GeoWEPP for Determining Sediment Yield and Runoff in the Orcan Creek Watershed in Kahramanmaras, Turkey †
The location of the study area on topographic map of Turkey.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3927523&req=5

f7-sensors-08-01222: The location of the study area on topographic map of Turkey.
Mentions: Orcan Creek Watershed, located in approximately 25 km southeastern of Kahramanmaras, was selected as a study area because it represents the land, soil, and vegetation characteristics of the region (Figure 7). The study area is 490 ha of which 175 ha is forested land, 165 ha is rangeland, and 150 ha is agricultural land. The dominant tree species in the forest are Pinus brutia, Cedrus libani, and Quercus brantii. The average ground elevation and average-slope were 957 m and 34 %, respectively. The average length of watershed is 20 km and the width of watershed is about 2.5 km. The annual precipitation of study area is approximately 730 mm.

View Article: PubMed Central - PubMed

ABSTRACT

The geo-spatial interface of the WEPP model called GeoWEPP uses digital geo-referenced information integrated with the most common GIS tools to predict sediment yield and runoff. The model determines where and when the sediment yield and runoff occurs and locates possible deposition places. In this study, the sediment yield and runoff from Orcan Creek watershed in Kahramanmaras region was estimated by using GeoWEPP model. To investigate the performance of the model, the sediment yield and runoff results from the GeoWEPP model were compared with the observed monthly data collected from the sample watershed. The average Root Mean Square Errors (RMSE) between observed and predicted average annual sediment yield and runoff were 2.96 and 8.43, respectively. The index of agreement was 0.98 and 0.99 for sediment yield and runoff, respectively, which indicated that the model predictions provided good results.

No MeSH data available.