In this study, trends of annual and seasonal precipitation time series for the period of (1971–2006) were analysed for three meteorological stations (Lattakia, Tartous and Safita) located in the coastal region of Syria, by linear regression and Spear
man's rho tests.
The results showed a decreasing trend of annual precipitation in Lattakia and Tartous stations and increasing trend in Safita station. At the seasonal time scale, a decreasing trends of winter precipitation in Lattakia station and of spring precipitation in all stations were observed. While an increasing trends of winter precipitation in Tartous and Safita stations and of autumn precipitation in all stations were observed. Although, all of these negative and positive linear trends, both at the annual and seasonal time scales are not statistically significant at 5% level, but they can have severe effects on water resources, rivers regimes and success of rain-fed crops in the study areas
The importance of this study lies in the hydrological analysis of the
relationship between the drainage system and the precipitation. The
problem of the study reveals in the water incompetence in the basin
which get to 336 million m3 and will gets
to 600 million m3 with
probability (p = 50%) and associated with missing the accurate evaluation
of the water resources.
The study aims to evaluate the water resources in the basin, to create a
mathematical model for calculation of the run off and its relationship with
the precipitation, and to predict the water resources for the hydrological
year according to many probabilities and the complementary
management for water resources.
Stages of the study involve the following:
1- Determining of the active stations in the feeding of hydrometric
stations.
2- Observing the average of water resources quantity (precipitation) over
the basin that reached 9764 million m3 and range between 2,26millionm3 in the hydrometric station of AL- Hamidi and 112,42
million m3 in Hama station.
3- Observing the average of the run off in the basin reached 744,67542
million m3.
4- Observing the run off system in the basin is a snow-rain system, where
the average of maximum discharge associates with precipitation and the
minor discharge associates with deprivation of the precipitation.
5- Creating a mathematical model for calculation of the run off and its
relationship with the precipitation.
6- Predicting the water resources for the hydrological year according to
many probabilities.
7- Creating a water strategy for the basin according to the data of water
predication in many probabilities
Brutia pine tree grows radially and gives one ring per year, the width of
this ring is determined by environmental conditions especially by climatic
ones. Dendroclimatology concerns with studying the response of tree rings
to climatic conditions.
In order to study the radial growth of brutia pine
planted 1975 in Heir Brafa, Tartous, Syria.
