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Defining hydogeological parameters by using monitoring data of the ground water system in the area between AL-Snobar and ALKabir AL-Shimali Rivers

تحديد البارامترات الهيدروجيولوجية باستخدام معطيات مراقبة نظام المياه الجوفية في المنطقة الواقعة بين نهري الصنوبر و الكبير الشمالي

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 Publication date 2013
  fields Geology
and research's language is العربية
 Created by Shamra Editor




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This research discusses the way of defining hydogeological parameters by using monitored data of the ground water system, for defining the values of these coefficients on large areas, which has a practical significance especially in modeling the hydrogeological problems which allows explaining and checking the hydrodynamic and the hydrogeological structures of the area and the reasons of changing the filteration properties of the aquifer. It appears that transmissivity varied from 36 to 570 m2/day, the permeability from 1 to 53 m/day, and the water yield from low to medium between 0.00004 and 0.2 because of the rising of the coefficient of diffusion. The filtration recharge approximately from 1 - 40% from the rain falls. The obtained results are in good conformity with the geological characteristics - structural and litologic - facies characteristics for the study area.



References used
WANG, H. F. ; ANDERSON, M. P. Introduction to ground water modeling finite difference and finite element methods. San francisco, 1982, 237
ADRIANA, H. G. NORID, T. Hydrogeology and geochemical characterization of ground water in a typical small scale agricultural aria of Japan. Journal of Asian, Earth sciences, Japan, 29, 2007, 18-28
Irrigation construction on an area of about 10thos. Hectares at the region of NAHR ALKABIR RIVER DAM in the Arab republic of Syria 2nd stage, General plan, part 1, SOYZGIPROVODKHOZ USSR,1980, 229
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This is a study of free groundwater level changes through time, and the level of its being affected by natural and artificial factors, which allows evaluating general water situation of the aquifer. This study shows that groundwater system in the stu dy area from the type of water division line (climatic system) connects in direct connection with infiltration from rainfalls in which the natural factors (recharge) play the main role in forming the system of groundwater, in addition to the artificial factors (irrigation), and these factors yield three periods of the obvious terminal changes of the levels in hydrologic year (descending, stability, ascending). However, groundwater is renewable because of stability in the situations of this water, and its discharge to hydrodynamic net of groundwater in Al-kabir al-shimali and Al-snobar rivers and in the Mediterranean Sea as well.
The research area is located in the Syrian coast between the Sin and Rous river. This research aims at studying the hydrogeological characteristics of the unconfined aquifer in the research area and evaluating the conditions of its placed. The rese arch was based on a monitoring network consisting of 36 wells that penetrate the unconfined aquifer, and measurements continued during the period (October 2016 until September 2017). The unconfined groundwater depths in the research area range between 0.5-11.5 m, and sometimes during the drought period reach to 13.5 m, while it is close to the surface in the winter and up to 0.1m in some wells. The electrical conductivity ranges between 550-3700 μs/cm, increasing as we go west and reaching 9,000 μs/cm and more in the wells near the sea during the dry period. Groundwater levels Lower in the dry period to below sea level in near-shore wells, achieves the hydrodynamic conditions of the seawater intrusion.
The aim of this research is to determine the infiltration values as a basic hydrogeological factor , which expresses the recharge of the ground water in a group of wells in the studied area . In order to include a general introduction , the geolog y and hydrogeology of the area and the explanation of the methods have been used to calculate infiltration and evaporation values . Finally the obtained results.
Natural changes in the level of ground water through time is gaining great importance in evaluating the water system and to provide a lot of information about groundwater movement , which allows the assessment of the water situation public water l ayer in the study area . We adopted our measurements in groundwater levels frequencies on a private network monitoring hydrogeological She is the author of 26 wells distributed over the entire area of the region studied were carried out in some measurements for a period of six years. The study found that groundwater system of climate type (water division line) is directly linked to seep from rainfall and seepage from canals and irrigation water plays a significant role in the pose, which is characterized by Baltkareh and periodic quarterly in the annual changes of the levels, and the stability and balance in the conditions of these elevations, and the general direction of movement of groundwater will be from the east and north-east towards the west and southwest and Askew Hydraulic 0.005 a faddish topographic situation and the general trend of the cracks and fissures in the area.
This study deals with spatial and temporal distributions of organic and inorganic phosphorus in sedimentary columns from Al-Kabir Al-Shimaliand Al-Hussain estuaries, during the period March 2013- February 2014. Organic phosphorus concentrations ra nged between (2.0 - 207.6) μg/gin sediments from Al-Kabir Al-Shimali estuary, and from (1.7 –130.9) μg/gin sediments from Al-Hussainestuary. Sediment content from inorganic phosphorus ranged between (12.4 – 371.2)μg / g at sediments from Al-Kabir Al-Shimali estuary, and from (2.0 - 242.6)μg /g at Al-Hussain estuary. Granular composition of sediments did not play a significant role in the temporal and spatial distributions of organic and inorganic phosphorus. In general, organic and inorganic phosphorus concentrations decreased gradually from winter to summer, and from surface layers of the sedimentary column towards the deeper layers. The ratiobetween inorganic and organic phosphorus increasedfrom river into marine sediments. In addition, this ratio increased gradually as the sedimentdepthincreased, and was high in winter and low in summer.
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