Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userThe Relationship Between Rainfall and Subterranean Water Levels On The Coastal Plain of Alkabeer Alshamali River Syria
العلاقة بين الهطل المطري و مناسيب المياه الجوفية في السهل الساحلي لنهر الكبير الشمالي سورية
1355
0 49
0
(
0
)
Created by
Shamra Editor
Ask ChatGPT about the research
تشهد منطقة الحوز الأدنى لنهر الكبير الشمالي نشاطاً اقتصادياً مهمّاً، تزداد معه الحاجة إلى المياه. و تهدف الدراسة إلى تحديد العلاقة بين كمية الهطل و تغيّر مناسيب المياه الجوفية. تنتشر في المرتفعات صخور كلسية و مارلية مشققة ذات نفوذية عالية، بينما تنتشر توضعات متوسطة إلى قليلة النفوذية في السهول الساحلية، و تتوضّع المياه الجوفية على عمق قليل من سطح الأرض، و تستجيب مناسيبها بسرعة كبيرة نسبياً لتسرب مياه المطر و مياه الري ما يجعل تلوّثها و تأثّرَها بالعوامل الجوية سهلاً و سريعاً، و ستتأثر بالتغيرات المناخية بسهولة. و تبيّن نتيجة معالجة البيانات الحقلية و مناقشتها أنّ تغيّرات مناسيب المياه الجوفية ترتبط بعوامل طبيعية و اصطناعية متعددة و متداخلة التأثير في مناسيب المياه الجوفية، فبعضُها يزيد تغذيةَ المياه الجوفية و ارتفاع مناسيبها، و بعضها الآخر له تأثير معاكس، بحيث لا يمكن وضع علاقة رياضية بين مناسيب المياه الجوفية و كميات الهطل المطري، بسبب التأثير المتزامن لهذه العوامل، التي يصعب عزلها و مراقبتها في وضعها الطبيعي.
Al-Kabeer River Coastal Plain faces very important economic activities which lead to growing water demands. This research aims to define the relationship between rainfall and subterranean-water levels. In the mountainous area fissured marl and limestone with high permeability spread. However, on the coastal plateau deposits with moderate to low permeability values spread, and water levels quickly respond to rainfall and irrigation water, which makes it get easily polluted and affected by climatic factors. Analyses and discussions of field data have led to the fact that subterranean-water levels are to do with many natural and artificial interrelated parameters. And in some cases, they can be adversely oriented, and difficult to isolate and monitor separately, and become very difficult to derive mathematical formula for describing the relationship between just two parameters (subterranean-water percentages and rainfall levels)
References used
IPCC. Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Kolars J. 1991.The Future of the Euphrates River. World Bank: Washington, DC. 2007
DOLL, P. and M. FLORKE. Global-scale estimating of diffuse groundwater recharge. Frankfurt Hydrology paper 03. Institute of Physical Geography, Frankfurt University, 2005
DELLEUR,W. D. The handbook of groundwater engineering, 2nd ed., Taylor &Francis Group. U.S.A. 2007, 1342
KIRSHEN, P, H. Potential impact of global warming on groundwater in Eastern Massachusetts. Journal of water resources planning and management U.S.A, Vol.128, 2002, 216-226
rate research
Read More
River flows depend on precipitation in their catchments, where the flow is highly
correlated with precipitation, among many climatic and geographic factors. The
relationship between precipitation and runoff is of great importance in estimating flow
changes in The HWAIZ basin that is located between The-Zrod and The-Gelani basins.
The Al-HWAIZ Dam was built on the HWAIZ River with storage capacity of 16.5 MCM.
The purpose of this study is to find a relationship between rainfall and runoff in The
HWAIZ basin. This study depended on statistical analysis of rainfall and runoff data, and
the analytical study of the annual rainfall data (1959-2011), to guess the trend of rainfall
and its future changes and forecasting changes in the HWAIZ river flows. The study
showed that the runoff coefficient values ranged between (0.007-0.66). A mathematical
relationship was established that allows to estimate flow based on measured or predicted
precipitation values, as well as appraise missing or lacking data with accepted level of
accuracy.
The Alsafarqieh watershed is located on the western slopes of the coastal mountain range,
Its area is 132.58 km2, It forms a part of the Alros river basin, The river starts at a height of
1200 m, A group of tributaries meet and form the Alros River
, which flows into the
Mediterranean Sea. Salaheddin Dam was constructed to store 10 MCM on the riverbed at
the intersection of the Qurdaha River with the Shehada River. The study aims to determine
the rainfall- runoff relationship in The Alsafarqieh watershed. The solution depends on the
statistical analysis of precipitation and runoff data. Then the study found the mean annual
precipitation is 159.6 MCM/year, and the mean annual flow into the Salaheddin lake was
9.4 MCM during the study period (2010-2012), so the runoff coefficient is 0.06. This
indicates a significant water loss. A mathematical equation to predict the runoff quantities
depending on the values of precipitation, has been concluded. This is important to study
water projects for water storage and flood prevention.
The studied area forms a part of the coastal basin on the east coast of the
Mediterranean Sea located north of Tartous city.The area is bordered by the Mediterranean
Sea from the west. And (jobar,banias, albasia) rivers from north, al Housen river
from the
south. The area covers about (358) km2.
The research aims to find arelationship between rainfall and flow within Mrqiyeh
River Basin, by conducting analytical statistical study using Minitab software, which helps
in completing the measurements are not available, and to predict the river flows depending
on the expected precipitation in the river basin. The study found that the relationship is:Q =
216 + 0.0379 P - 36.8ln (P) + 3.46ln(Q) ,and rainfall reflect 87.2% of the changes that
occur to the flow of the river. The study recommended that need to intensify the river
discharges measurements in order to increase the reliability of their data.
The objective of this article is describing the changes of the coastline shape during
the time period extended between 1973-2014.
the coastal zone is very special because it occur at the interface between the three
major natural systems at the ear
th surface atmosphere, ocean and land surface.
Geomorphological factors operating in all three of these systems are responsible for
shaping the coastal zone, and the interaction between the three different sets of processes
makes the coastal zone an extremely dynamic one.
At present, a wide range of tools and techniques are available to help us to study the
evolution of coastline during the time intervals determined by the available data, and thus
become our ability to predict future changes.
improve our understanding of the geomorphological processes affect the coastal
zone allow us to minimize their effects, and use this knowledge in the development of
comprehensive coastal zone management planning.
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.
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
