شماره ركورد كنفرانس :
4891
عنوان مقاله :
determincation and evaluation of runoff coefficients of basins by using geographical information systems
Author/Authors :
usul nurunnisa، dept of civileng METU Ankara, turkey , calamak، melih dept of civileng METU Ankara, turkey , acinan، sezen Dept. of GGIT,METU Ankara, turkey
كليدواژه :
runoff coefficient , basin parameters , geographic information systems GIS box-cox Transformation , regression analysis
چكيده لاتين :
turkey has very different geomorphologic hydrologic and climatic conditions so the runoff coefficient should be different from one basim to another but only a constant value 0.37 is being used for all the basins in turkey in this study monthly seasonal and annual runoff coefficients of 48 sub -basins in western and southern part of anatolia are determined by using synchronous rainfall -runoff data of 26 years record period and their temporal and spatial distributions are investigated . the relationship between the basin parameters and the runoff coefficient is also examined.