Rotifers from Rio de Oro (North-Western Sahara)

Hydrobiologia ◽  
1976 ◽  
Vol 51 (2) ◽  
pp. 109-112 ◽  
Author(s):  
Henri J. Dumont ◽  
M. Coussement
Keyword(s):  
Western Sahara ◽  
North Western

scholarly journals A GIS-Based Approach to Inform Agriculture-Water-Energy Nexus Planning in the North Western Sahara Aquifer System (NWSAS)

2020 ◽  
Vol 12 (17) ◽  
pp. 7043 ◽  
Author(s):  
Youssef Almulla ◽  
Camilo Ramirez ◽  
Konstantinos Pegios ◽  
Alexandros Korkovelos ◽  
Lucia de Strasser ◽  
...  
Keyword(s):  
Fossil Fuels ◽  
Mathematical Formulation ◽  
Western Sahara ◽  
Aquifer System ◽  
Water Abstraction ◽  
The North ◽  
Groundwater Source ◽  
Water Scarce ◽  
North Western ◽  
Agriculture Water

The North Western Sahara Aquifer System (NWSAS) is a vital groundwater source in a notably water-scarce region. However, impetuous agricultural expansion and poor resource management (e.g., over-irrigation, inefficient techniques) over the past decades have raised a number of challenges. In this exploratory study, we introduce an open access GIS-based model to help answer selected timely questions related to the agriculture, water and energy nexus in the region. First, the model uses spatial and tabular data to identify the location and extent of irrigated cropland. Then, it employs spatially explicit climatic datasets and mathematical formulation to estimate water and electricity requirements for groundwater irrigation in all identified locations. Finally, it evaluates selected supply options to meet the electricity demand and suggests the least-cost configuration in each location. Results indicate that full irrigation in the basin requires ~3.25 billion million m3 per year. This translates to ~730 GWh of electricity. Fossil fuels do provide the least-cost electricity supply option due to lower capital and subsidized operating costs. Hence, to improve the competitiveness of renewable technologies (RT) (i.e., solar), a support scheme to drop the capital cost of RTs is critically needed. Finally, moving towards drip irrigation can lead to ~47% of water abstraction savings in the NWSAS area.

scholarly journals Inaccurate Application of Isotope Hydrology Techniques to Nubian Sandstones Aquifer System in Sinai and North-Western Sahara Aquifers Systems

2020 ◽  
pp. 1-8
Author(s):  
Samir A Al-Gamal ◽  
Keyword(s):  
Isotope Hydrology ◽  
Isotopic Data ◽  
Comprehensive Understanding ◽  
Transboundary Cooperation ◽  
Western Sahara ◽  
Transboundary Aquifer ◽  
Aquifer System ◽  
Groundwater Dynamics ◽  
Use Patterns ◽  
North Western

A comprehensive understanding of the groundwater dynamics of a transboundary aquifer system is highly needed for any successful transboundary cooperation policy. The present paper addresses the necessity of identifying specific cooperation problems which evolve out due to the improper handling and treatment of isotopic data of these hydro geological attributes and prevalent use patterns.

scholarly journals The age and origin of groundwater in the Great Western Erg sub-basin of the North-Western Sahara aquifer system: Insights from Krechba, central Algeria

2018 ◽  
Vol 96 ◽  
pp. 277-286 ◽  
Author(s):  
W.G. Darling ◽  
J.P.R. Sorensen ◽  
A.J. Newell ◽  
J. Midgley ◽  
M. Benhamza
Keyword(s):  
Western Sahara ◽  
Aquifer System ◽  
The North ◽  
North Western

Pre-Islamic Oasis Settlements in the North-Western Sahara

2020 ◽  
pp. 239-276
Author(s):  
Martin Sterry ◽  
David J. Mattingly ◽  
Youssef Bokbot
Keyword(s):  
Western Sahara ◽  
The North ◽  
North Western
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