Figures & data
Figure 1. Location map of the AHDR (ESRI Citation2014).
Figure 2. (a) Typical annual flow regime of the Nile River at Aswan and the contributions from the three major tributary basins. (b) The discharge and suspended sediment budget of the Nile (after Woodward Citation2008, with permission from Wiley).
Figure 3. Water level upstream of AHD from 1968 to 2010 based on data from the MWRI.
Figure 4. Flowchart of the methodology.
Table 1. List of imagery with acquisition dates and the corresponding water levels at AHDR.
Figure 5. (a) Digital contour map of the AHDR area before the dam construction based on data from MWRI. (b) Bathymetric survey data and boundaries of the AHDR extracted from satellite images for the period 1984–2013.
Figure 6. Comparison of the two storage curves: design curve and DEM curve.
Figure 7. Changes in the bed elevation of the AHDR based on bathymetric survey data for 1964, 2008 and 2012 from data provided by MWRI.
Figure 8. Upstream face of cross-section (A–A) at 431 km upstream of the AHD based on DEM and bathymetric survey data of 1998 and 2012 based on data provided by MWRI.
Figure 9. Upstream face of cross-section (B–B) at 337.5 km upstream of the AHD based on DEM and bathymetric survey data of 1998 and 2012 based on data provided by MWRI.
Table 2. Storage capacity for different operating zones of AHDR estimated from MWRI curve and DEM.
Figure 10. Comparison of the two surface area curves: design curve and DEM curve.
Table 3. Surface area of the reservoir estimated from MWRI curve, satellite images and DEM.
Figure 11. Shape of the reservoir produced from DEM and satellite images.
Figure 12. Changes at (a) the entrance of the lacustrine part of the AHDR below 175 m a.s.l. and (b) the entrance of the southern part of the AHDR above 175 m a.s.l., for the period 1998–2013.
