Wadi Awsaq

Wadi Awsaq () Map FCO 18/1787 - 1972 - Oman and the United Arab Emirates (UAE): Dibba, with handwritten annotations - Scale 1:100 000 - Published by D Survey, Ministry of Defense, United Kingdom (1971) - Edition 3-GSGS - The National Archives, London, England <https://www.agda.ae/en/catalogue/tna/fco/18/1787>Mindat.org - Wādī Ţawīyayn, Al Fujayrah, United Arab Emirates <https://www.mindat.org/feature-290669.html> is a valley or dry river, with ephemeral or intermittent flow, which flows almost exclusively during the rainy season, located in the east of the United Arab Emirates, in the emirates of Fujairah and Ras Al Khaimah.

It is a right tributary of the Wadi Tawiyean, to whose extensive drainage basin of 208 km² it belongs,OpenStreetMap.org - Way: Wadi Tawiyean Drainage Basin (1286229718) <https://www.openstreetmap.org/way/1286229718> and which borders to the north with the basins of the Wadi Khabb Shamsi,OpenStreetMap.org - Way: Karsha / Wadi Khabb Shamsi Drainage Basin (1284496100) <https://www.openstreetmap.org/way/1284496100#map=11/25.7220/56.2376> Wadi NaqabOpenStreetMap.org - Via: Wadi Naqab drainage basin (1266108848) <https://www.openstreetmap.org/way/1266108848#map=12/25.7057/56.0963> and Wadi Nahela;OpenStreetMap.org - Vía: Wadi Nahela drainage basin (1274096521) <https://www.openstreetmap.org/way/1274096521#map=13/25.65882/56.05569> and to the south and west by those of Wadi Mu'taridah / Wadi Mutarid and Wadi Basseirah. Application of a hydrological model in a data poor arid region catchment: a case study of Wadi Ham - Mohamed Mustafa Al Mulla PhD Thesis Academic Year 2005-2006 - Supervisor: Dr Ian P. Holman - December 1, 2005 - Cranfield University at Silsoe - Institute of Water and Environment <https://dspace.lib.cranfield.ac.uk/items/c116d8d5-f80b-4c8b-b754-7507d3abec27>Water Resources and Integrated Management of the United Arab Emirates - Abdulrahman S. Alsharhan, Zeinelabidin E. Rizk - Springer Nature, Mar 17, 2020 - 850 pages - pag. 204-205 <https://books.google.com/books?id=lF7XDwAAQBAJ&pg=PA103&hl=es&source=gbs_selected_pages&cad=1#v=onepage&q&f=false>

The entire Wadi Tawiyean basin, whose highest peak is Jabal Yibir (), brings together approximately 222 independent streams, most of them unnamed, all classified into five grades or levels according to the Horton-Strahler numbering.

Among the main tributaries of the Wadi Awsaq (sub-tributaries of the Wadi Tawiyean), the Wadi Mara (upper segment of the main wadi), the Wadi Al Mayyah and the Wadi Sadakh stand out.

Course

The total approximate length of the Wadi Awsaq is (including the upper segment, also known as Wadi Mara ().

It flows from north to south, and its main source is located on the northern slope of Jabal Yibir, at an altitude of approximately above sea level.

In its upper course it borders first to the south the Jabal Dardur (),Jabal Dardur PeakFinder <https://www.peakfinder.com/es/?lat=25.65440&lng=56.12920&ele=1398&azi=358.26&alt=0.06&fov=47.78&cfg=s&name=Jabal%20Dardur> and the village of Dardur (), which extends around its summit, forming a ravine that descends to the nearby village of Al Marah ().

In Al Marah the wadi turns south until it reaches the village of Mayya / Al-Mayah (),Al Mayah - Fujairah Tourism & Antiquities Department <https://fujairah.ae/en/Pages/placevisitDetails.aspx?placeToVisitID=36> where it receives on its left its tributary the Wadi Al Mayyah ().

Mayya is currently a small village, located next to the access road to the summit of Jabal Yibir, with few permanent inhabitants, as most of its residents moved in 1973 to a residential neighborhood near the city of Tawiyean (), but tradition speaks of the existence at this site of a large natural pond deep, with three springs that provided a year-round supply of fresh water (the name of the village means "the water").

From Mayya, the Wadi Awsaq forms a deep gorge about long, which directs its channel towards the Sayh Muruq depression,Mindat.org - Sayh Muruq, Al Fujayrah, United Arab Emirates <https://www.mindat.org/feature-291325.html> next to the city of Tawiyean, receiving the waters of Wadi Sadakh shortly before it flows into the Wadi Tawiyean.

Dams and Reservoirs

As in other regions of the UAE, the geographic area of Wadi Awsaq has occasionally been affected by unusually heavy rainfall and flooding, but no dams have yet been built along its channel.

However, to prevent the danger of flash floods and increase the recharge potential of groundwater, a large dam was built in 1992 across the Wadi Tawiyean, taking advantage of the confluence of the Wadi Awsaq and other major wadis (Wadi Al-Qaliddi, Wadi Sayraq, Wadi Sadakh, Wadi Khabb) in the Sayh Muruq depression.

The dam is high, has a reservoir of with a capacity of 18.5 million cubic metres, and was officially named Wadi Tawiyean Dam (coordinates: 25°33′57″N, 56°2′56″E).Food and Agriculture Organization of the United Nations AQUASTAT - FAO's Global Information System on Water and Agriculture https://www.fao.org/aquastat/en/databases/dams Ministry of Energy and Infrastructure in UAE - Federal Dams https://admin.bayanat.ae/Home/DatasetInfo?dID=lFWr8jmvtTwdCtQd7uDtLjOq-EB6rfmemu-OtkcDuCo&langKey=en>

Toponymy Alternative names: Wadi Ausaq, Wadi Awsaq, Wadi `Awsaj, Wādī Awsāq, Wādī ‘Awsaj.

The name of Wadi Awsaq (spelled Wadi Ausaq and Wādī Awsāq), its tributaries, mountains, and nearby towns were recorded in documentation and maps produced between 1950 and 1960 by the British Arabist, cartographer, military officer and diplomat Julian F. Walker, during the work carried out to establish the borders between the then-called Trucial States,FCO 18/1969 - 1959 - Sketch map drawn by Julian Walker for boundary delimitation: Dibba - The National Archives, London, England <https://www.agda.ae/en/catalogue/tna/fco/18/1969> later completed by the Ministry of Defence of the United Kingdom, on 1:100,000 scale maps published in 1971.

Population

The Wadi Awsaq area was populated mainly by the Sharqiyin tribe, sections or tribal areas of Hafaitat / Ḩufaitāt and Yammahi / Yamāmaḩah.Gazetteer of the Persian Gulf. Vol. II. Geographical and Statistical. J G Lorimer. 1908', British Library: India Office Records and Private Papers, IOR/L/PS/20/C91/4, in Qatar Digital Library <https://www.qdl.qa/en/archive/81055/vdc_100023515720.0x00005d>

In the vicinity of Wadi Awsaq and its tributaries, there are archaeological remains that testify to human presence in this area since very ancient times.Britton, Georgia. “An Archaeological Survey of Northern Fujairah, United Arab Emirates.” Arabian Archeology and Epigraphy, 2004. <:https://www.academia.edu/48243045/An_archaeological_survey_of_northern_Fujairah_United_Arab_Emirates> Tribulus - Volume 5.1 - 1998 - Journal of the Emirates Natural History Group (page 11) - Fujairah Archaeological Survey An Interim Report - L. Brass, R. Painter, G. Britton, L. Hill - Abu Dhabi, United Arab Emirates, 1995 <https://enhg.org/Portals/1/trib/V05N1/TribulusV05N1Searchable.pdf>

Wadi Awsaq

Bron en licentie