Rainfalls Study in Salinity Increase (T.D.S) in Dams Reservoirs

Abstract

Rivers salinity and there different changes are the major factors for determining the limits of use for various purposes such as that drinking agricultures and industry. Therefore in order to study the salinity of rivers we use the statistics and (22yers) of Nahand station. One factor increasing the salinity of the Nahand river is salty branch specially salty area in bottom basin that in rain and shower makes T.D.S increasable and ultimately discharge in Shahid Madany (Aji Chay) reservoir .The number of salty branch and salty area in upper basin of Aji Chay are more and has not any statistical date so the value of T.D.S hydrometric station in Nahand river shows that after the elapse of dry season and start first precipitations samples shows that the T.D.S of samples against of correlation curve are accumulation. considering the limited number of specific samples makes dramatically reduce of regression coefficient in the correlative equation , that do not delete the this samples and solve problems in T.D.S calculation will be presented later.