Document Details
|
Document Type |
: |
Article In Journal |
|
Document Title |
: |
A Preliminary Estimation of Groundwater Recharge in Namman Basin تقديرات أولية لتغذية المياه الجوفية بوادي نعمان |
|
Document Language |
: |
Arabic |
|
Abstract |
: |
Abstract. In this paper, a simulation of a one-dimensional water
movement in soil layers using Wave Model is presented. The model is
utilized to investigate the groundwater recharge at varoius soil depths
of Namman basin in western Saudi Arabia. The basin was divided into
35 sub-basins and the model was applied to the alluvial soils of the
channels of the sub-basins. The study assumed that rainfall on
moutainous areas of the basin will be transfered to the channels very
fast and added to the direct rainfall as an accumulated water depth on
the alluvium. Data of soil properties, soil-water relationship, rainfall
and potential evaporation were collected for the study region and used
by the model to estimate volumes of surface runoff, abstractions and
groudwater recharge. Daily rainfall data for 1975 and 1980 which had
largest and smallest annual rainfall depths during the period of the
available rainfall records were used in the study. The results of the
study indicated that values of infiltration rate were very high in most
of the surface soil in the basin and their average was about 98% of
rainfall volume. Most of runoff in Namman basin is produced by Yarij
sub-basin and about a quarter of the hydrologic abstrations is
contributed by Al-Shara sub-basin. Majareesh sub-basin has the
largest contribution to groundwater rechage of Namman basin, while
Arar and Yarij sub-basins have the smallest contributions. The study
suggested a linear realtionship between groudwater recaharge volume
and soil depth. |
|
ISSN |
: |
1319-1039 |
|
Journal Name |
: |
Meteorology, Environment and Arid Land Agriculture Sciences Journal |
|
Volume |
: |
21 |
|
Issue Number |
: |
1 |
|
Publishing Year |
: |
1431 AH
2010 AD |
|
Article Type |
: |
Article |
|
Added Date |
: |
Wednesday, July 11, 2012 |
|
Researchers
| عبدالله سعد الوقداني | Al-Wagdany, Abdullah S | Investigator | Doctorate | AWAGDANI@KAU.EDU.SA |
|
Back To Researches Page
|