In Algeria, only the transport of suspended sediment is measured, rate bedload in global solids estimated, approximately. Measures bed load field are very costly, due to flow disturbances. As a result, evaluations this type difficult carry out absence databases. article, we tried quantify mode at wadi El-Hammam using formula Meyer-Peter and Müller. Formula that seems best adapted physical chara...

In order to cope with the rise in human-caused demands, Saudi Arabia is exploring new groundwater sources. The potential of Wadi Ranyah was studied using a multi-dataset-integrated approach that included time-variable gravity data from Gravity Recovery and Climate Experiment (GRACE), vertical electrical sounding (VES), time-domain-electromagnetic (TDEM) other related datasets examine variations...

We have observed an unusually high prevalence of dementia of the Alzheimer type (DAT) in Wadi Ara, an inbred Arab community in northern Israel comprising approximately 850 persons over the age of 60 years. Family studies revealed that more than one-third of the DAT cases are members of one hamula (tribal group) within Wadi Ara. To map chromosomal loci contributing to DAT susceptibility, we cond...

Older and younger granitoids are widespread throughout the basement rocks of NE Egypt. Therefore, they are played a significant role in the evolution of the Pan-African crust. The Wadi El Sheikh-Gabal Saint Katherine area comprise three distinctive magmatic granitoid suites, namely: (1) calc-alkaline older quartz monzodiorite-tonalite suite (COG), (2) calcalkaline younger monzogranite suite (CY...

Water availability is the most important limiting factor in arid lands. Any additional source of water, such as dew and fog, may have a positive impact upon the ecosystem. Dew and fog precipitation are largely dictated by weather conditions and habitat. Dew and fog measurements were carried out for 29 days in the fall of 1987–1989 at three distinctive habitats within a single drainage basin in ...

Wadis, ephemeral dry rivers in arid desert regions that contain water in the rainy season, are often manifested as braided linear channels and are of vital importance for local hydrological environments and regional hydrological management. Conventional methods for effectively delineating wadis from heterogeneous backgrounds are limited for the following reasons: (1) the occurrence of numerous ...