Al-Kabeer Al-Shemale river rises from Aqraa Mountain and coastal mountains, it is considered one of the largest rivers in the coastal area.Its catchment area is 1097 km2, and empties into the sea to the southern of Lattakia.The study aims to determin
e the impact of climate change on the river discharge. Since the rainfall is the major factor in the runoff formation in the river catchment, the rainfall changes have been studied in climatic stations located within the catchment and its surroundings, and for a period of time exceeding thirty years. The study found that the general trend of rainfall change and runoff with time is decreasing, declining rainfall values ranged in the studied stations between (0.4-12.5) mm per year, and the runoff reached 0.08m3/s in the year. A mathematical equation, predict river discharge after knowing the values of daily precipitation, has been concluded.
Hydrological studies in Syria- in general- based on classical methods to derive catchment areas of road culverts or estimating the design storm for these catchments. Such operations have a significant degree of complexity, effort and time costing, up
to
implementing clear concept about streams crossing the road and deriving the catchments boundaries to estimate the designing storm discharge according to road classification and passing facility type preventing road inundation or demolition.
In this study the GIS technique was used to derive catchments for all outlets on this road and the morphological properties were estimated. The developed hydrological model for studied road allows designers to evaluate more accurate solutions in such engineering cases like determiningthe best locations for culverts on roads, estimating design storm and design discharge for those outlets and all other engineering characteristics “designing
parameters” such as longitudinal slope, span, area, number of openings. as it allows the development of various economic solutions in order to choose the best one from both
engineering and economic view points, according to road classification and storm probability.
Banias River Basin is located in the middle of the Syrian coast between the Joubar and
Merqiah River Basins. Its catchment area is ) 97 ( km2, and its length is ( 24,5) km.
The research aims to get the optimal management of the available and non-ex
ploited water
resources of Banias Spring, using water evaluation and planning system WEAP. Research
methodology based on collecting data and proposing two scenarios, first: storing of Banias spring
water to provide the water requirement of Banias city, Second: replacing Sin Spring in order to
provide Banias Refinery water. The percentage of coverage is about 88% requirement in scenario
of water supply to Banias city, while differentiated during the year in scenario meet the water
requirement of Banias Refinery, which has reached 84% in the first six months and fallen in
October to 52%. Existing wells in the confined aquifer are used to cover the shortfall in the
requirement.
