The present study aims to utilize an Artificial Neural Network (ANN) to modeling the rainfallrunoff relationship in a catchment area located in a semiarid region of Iran. The paper illustrates the applications of the feed forward back propagation for the rainfall forecasting with various algorithms with performance of multi-layer perceptions. The monthly stream of Jarahi Watershed was analyzed ...

Human activities have profoundly changed the hydrological regime and trends of rivers lakes, which, in turn, has affected utilization their navigable conditions. However, few studies focused on effects changes regimes lakes Thus, this study intensively analyzes investigates depth at major control sections lake area during dry season period before 2002, when Three Gorges Reservoir was not yet co...

Proper design and operation of monitoring systems for water resources management is one of themost important issues of water quality and quantity and accuracy and adequacy of data. The properevaluation of these data has a determining role in the correctand consistent decisions in the areacovered by the system. Therefore, determining proper distribution and number of monitoringnetwork stations a...