HYROLOGICAL RELATIONSHIP BETWEEN SURFACE AND GROUNDWATER IN BADRA - JASSAN BASIN

Abstract

Surface and Groundwater's has an associated hydrological relationship affected by
deferent factors related to Geological, Hydrological and Climatic conditions where these
factors control the circumstances of groundwater movement in shallow aquifers as well
as the quantity of water can be gained or lost from the aquifer and river. In Badra -
Jassan basin, the main River is Galal Badra which flows from inside Iranian territory
with two tributaries and discharge water in Al- Shuacha marshes to the south , most of
river water depends on water gained from inside Iranian territory. Part of the
groundwater discharge to the river basin in specific areas according to the topography of the river valley as well as height of groundwater level in the shallow aquifer above the
surface water in the river. At the same time the shallow aquifer which consist of layers
and deposits of gravel, sand and silt gained water from river in certain locations, where
groundwater quality has changed according to levels of Natural Nutrition to be similar to
chemical quality of surface water in those sites. Recharge and discharge levels of
groundwater within the river has determined by drawing a hydrogeological section along
the river and study of the hydrochemical characteristics of groundwater and surface
water in the basin.