Table 8 Areas and volume of saltwater, mixing, and freshwater zones under various agricultural management scenarios and mitigation of SWI scenarios.
From: Management of groundwater abstraction and seawater intrusion in the Moghra aquifer, Egypt
Scenario | Saltwater zone | Mixing zone | Freshwater zone | |||
|---|---|---|---|---|---|---|
Area (km2) | GW volume (km3) | Area (km2) | GW volume (km3) | Area (km2) | GW volume (km3) | |
Base case | 964 | 101.22 | 11,049.81 | 1160.22 | 1154.19 | 121.19 |
Impact of abstraction on seawater intrusion (no. of wells = 445) | ||||||
S1 | 966 | 101.43 | 11,102.22 | 1165.73 | 1099.79 | 115.48 |
S2 | 967 | 101.54 | 11,126.47 | 1168.28 | 1074.53 | 112.83 |
S3 | 972 | 102.06 | 11,149.96 | 1170.75 | 1046.04 | 109.83 |
S4 | 975 | 102.38 | 11,169.58 | 1172.81 | 1023.42 | 107.49 |
Impact of abstraction on seawater intrusion (no. of wells = 1000) | ||||||
S5 | 970 | 101.8 | 11,104.78 | 1166.00 | 1093.62 | 114.83 |
S6 | 977 | 102.2 | 11,137.61 | 1169.45 | 1057.391 | 111.03 |
S7 | 976 | 102.4 | 11,141.88 | 1169.90 | 1050.596 | 110.31 |
S8 | 981 | 103.0 | 11,156.56 | 1171.44 | 1030.444 | 108.20 |
Mitigation seawater intrusion scenarios (abstraction) | ||||||
S9 | 846 | 88.80 | 11,513.01 | 1208.87 | 809.29 | 84.98 |
S10 | 837 | 87.90 | 11,495.52 | 1207.03 | 835.34 | 87.71 |
S11 | 828 | 86.90 | 11,475.02 | 1204.88 | 865.37 | 90.86 |
S12 | 811 | 85.16 | 11,456.32 | 1202.91 | 900.59 | 94.56 |
Mitigation seawater intrusion scenarios (recharge) | ||||||
S13 | 937 | 98.35 | 11,448.75 | 1202.12 | 782.58 | 82.17 |
S14 | 934 | 98.06 | 11,445.97 | 1201.83 | 788.11 | 82.75 |
S15 | 914 | 96.01 | 11,440.64 | 1201.27 | 813.00 | 85.37 |
S16 | 903 | 94.79 | 11,429.6 | 1200.11 | 835.66 | 87.74 |
Mitigation seawater intrusion scenarios (abstraction + recharge) | ||||||
S17 | 820 | 86.13 | 11,579.42 | 1215.84 | 768.34 | 80.68 |
S18 | 817 | 85.75 | 11,570 | 1214.85 | 820.86 | 86.19 |
S19 | 798 | 83.83 | 11,560 | 1213.80 | 822.32 | 86.34 |
S20 | 780 | 81.90 | 11,550 | 1212.75 | 825.32 | 86.66 |
