Abstract
Wadi Rajil catchment area is considered as one of the major wadis entering the Azraq Basin from the north. It is ungauged wadi and covers an area of about 3910km 2 . The annual average rainfall on Wadi Rajil catchment area is about 126.6mm. Heavy thunderstorms occur in April and May, causing significant floods covering the area. The flood waters are not utilized, and a small portion infiltrates into the ground, where the great portion of these waters remain over Qaa’ Azraqfew months before evaporation. Due to the absence of the hydrometric stream flow station, no data are available about surface water runoff in Wadi Rajil catchment area. Therefore, the first part of this study calculates the surface water potential of Wadi Rajil to be utilized for groundwater artificial recharge, applying the SCS curvilinear synthetic unit hydrograph method. The synthesis unit hydrograph of Wadi Rajil catchment is characterized by a peak value of 1146 m3/s (4047 cfs) per one inch of rainfall excess. Flood hydrographs for 10,25,50, and 100 years return periods were derived and their peak flow are found to be 10,8,186,412, and 680 m 3 /s, respectively and the corresponding flood volumes are 0.95, 16.53, 36.89, and 61.5 MCM, respectively.Groundwater artificial recharge conditions are suitably prevailing in the most northern and central part of the catchment area, whereas, geological, Hydrogeological, and water quality characteristics of the floodwater encourage artificial replenishment of the exploited aquifer in the study area.
Highlights
Azraq basin is located in the Northeastern part of Jordan and extends northwards into Syria and southwards into Saudi Arabia.The Azraq Oasis which is located in the central part of the basin is at a distance of about 120 km northeast of Amman
The thunderstorm rainfalls from the great part of the total rainfall in the study area, which is characterized by irregular intensity and duration
The northern part of the Azraq Basin receives higher rainfall amounts than the other parts of the basin and most of the groundwater resources are originated from north of the Azraq basin.The investigation of the availability of surface water and the prevailing conditions for groundwater artificial recharge for
Summary
Azraq basin is located in the Northeastern part of Jordan and extends northwards into Syria and southwards into Saudi Arabia.The Azraq Oasis (called locally Sabkhah or Qa’a Azraq) which is located in the central part of the basin is at a distance of about 120 km northeast of Amman. Qa’a Azraq is a relative large mudflat located in the central part of the basin. Two villages are located on the western side of the Qa’a Azraq; these are Azraq Shishan and Azraq Druze. A well field called AWSA was established north of Azraq Druze Springs (northern springs) where about [15-20] million m3 per year (MCM/a) of water is pumped to the capital Amman for drinking purposes since 1982. The total abstraction from the basin is about 65 MCM/a (El Naqa et al, 2007)
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
