Detection of Karstic Groundwater Flow System: A Case Study of Prao-Bisetoun Limestone Mass, Kermanshah Province, Iran

In this research the Groundwater Flow System has been studied in Karstic Prao- Bisetoun region. Therefore, sinkholes, linear features and springs are recognized to groundwater flow system indicators, which could be detection recharge, intermediate and discharge areas in karstic system. Field research, analysis of topographic maps and Measure the spectral reflectance has been used to detect sinkholes. Lineaments were extracted by enhancement Filtering technique. Descend coefficients and dynamic storage volume of springs were calculated and their hydrograph curve was plotted and examined their relation to rainfall and snow. The results showed that the karst aquifer is fed by sinkholes and through developed channels that act like underground rivers to carry the water to springs. Due to low distribution Sinkholes in the northern plains, Kamijeh and Sohrab springs discharge are less than the southern spring's groups. The high frequency of Sinkholes in the southern part of study area has been caused to increase the springs discharge, so that Brnaj spring which is located near the focus region has the highest rate.