Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userSystem of un confined aquifer in the area located between Al-snobar and Al-kabir al-shimali rivers
نظام المياه الجوفية الحرة في المنطقة الواقعة بين نهري الصنوبر و الكبير الشمالي
1308
2 24
0
(
0
)
Created by
Shamra Editor
Ask ChatGPT about the research
يتضمن البحث دراسة تغيرات مناسيب المياه الجوفية الحرة مع الزمن، و مدى تأثرها بالعوامل الطبيعية و الاصطناعية، الأمر الذي يسمح بتقويم الوضع المائي العام للطبقة المائية. تبين من خلال هذه الدراسة أن نظام المياه الجوفية في منطقة الدراسة من نوع خط التقسيم المائي (النظام المناخي) يرتبط ارتباطاً مباشراً بالرشح من الهطولات المطرية، حيث تلعب العوامل الطبيعة (التغذية الراشحة) الدور الرئيس في تشكل نظام المياه الجوفية، إضافةً إلى العوامل الاصطناعية (الري)، و هذه العوامل تُنتج ثلاث فترات في التغيرات الفصلية الواضحة للمناسيب في السنة الهيدرولوجية (هبوط، ثبات، نهوض). كما أن المياه الجوفية متجددة نتيجة الاستقرار في أوضاع مناسيب هذه المياه، و هي تنصرف تبعاً للشبكة الهيدروديناميكية للمياه الجوفية في نهري الكبير الشمالي و الصنوبر و في البحر المتوسط أيضاً.
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 study 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.
References used
GALLART, F. ; DELGADO, J. ; BEATSON, S.J.V. ; POSNER, H. ; LLORENS, P. ; MARCE, R. Analysing the effect of global change on the historical trends of water resources in the headwaters of the Llobregat and Ter river basins (Catalonia, Spain). Journal of Elsevier, Physics and Chemistry of the Earth, spain, 2011, 8
MARK, T. ; AMAYA, M. ; JAVIER, U. Emergy analysis applied to the estimation of the recovery of costs for water services under the European Water Framework Directive. Journal of Elsevier, Ecological Modelling, USA, 2010, 2123-2132
LPEZ-MORENO, J. ; VICENTE-SERRANO, S. ; MORAN-TEJEDA, E. ZABALZA, J. ; LORENZO-LACRUZ, J. GARCEA-RUIZ, J. Impact of climate evolution and land use changes on water yield in the Ebro basin. Hydrol. Earth Syst. Sci. 15, 2011, 311-322
rate research
Read More
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 hy
drogeological
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.
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.
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.
Study of the general characteristics of Fractures in the central part of
the AL-Kabir AL- Shimali river basin showed the presence of
several main groups of Fractures with directions NE-SW _ NNESSW,
NW-SE , E-W.and showed increased fracture rate in
the
northern and southern parts of the study area, and that the spacing
between the Fractures close to the medium convergence (5-34) cm ,
also show a aperture ranged between (0.1-5.1) cm, where aperture
width was increased in southwest of Lake 16 October near Lattakia-
Kless fault .
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.
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
