Basin Boundary Problem in the Porsuk Creek Basin, Turkey

In this study, the basin boundary problem in Porsuk Brook Basin, which has high vulnerability to pollution, flood and mild drought, and the geographical location and area (km2) of the basin are defined. Main purpose of the work is correctly by creating the basin area completing the missing basin location information and correcting false location maps. In the manual determination according to the WGS84 system, the area of the Porsuk Creek Basin is 10829,92 km2 and 10830,25 km2 in the automatic determination. The basin is composed of 4 morphological sections in the form of Lower, Middle, Upper and Uppermost Section. The basin boundary problem is that a large area is not included in the Uppermost Section, and this area corresponds to ~414 km2 [~58000 football fields or 1,5 times the G？k？eada (Imbros)]. Although it is not mentioned in the geographical position information Bilecik province and Afyonkarahisar/？hsaniye is located within the basin area. The research findings refer to the faults observed at the basin boundary of the Porsuk Creek. The results of the study were found to be important for the integrated river basin management