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Legend (Africa_Groundwater/Africa_Groundwater_v2)

African_countries (0)
Depth to Groundwater (1)
0-7 0-7
7-25 7-25
25-50 25-50
50-100 50-100
100-250 100-250
>250 >250
Storage (water depth in mm) (2)
0 0
<1000 <1000
1000-10 000 1000-10 000
10 000-25 000 10 000-25 000
25 000 - 50 000 25 000 - 50 000
>50 000 >50 000
Productivity (l/s) (3)
Very High: >20 l/s Very High: >20 l/s
High: 5-20 l/s High: 5-20 l/s
Moderate: 1-5 l/s Moderate: 1-5 l/s
Low-Moderate: 0.5-1 l/s Low-Moderate: 0.5-1 l/s
Low: 0/1-0.5 l/s Low: 0/1-0.5 l/s
Very Low: <0.1 l/s Very Low: <0.1 l/s
Recharge (mm per a) (4)
< 2.5 < 2.5
2.501 - 10 2.501 - 10
10.001 - 25 10.001 - 25
2.501 - 50 2.501 - 50
50.001 - 100 50.001 - 100
100.001 - 250 100.001 - 250
>250 >250
Availability and Accessibility (5)
High High
High to Moderate High to Moderate
Moderate Moderate
Low to Moderate Low to Moderate
Low Low
Vulnerability to Groundwater Depletion (6)
High High
Moderate to High Moderate to High
Moderate Moderate
Low to Moderate Low to Moderate
Low Low
Intrinsic Vulnerability to Anthropogenic Contamination (7)
Very Low (66 - 101) Very Low (66 - 101)
Low (101 - 118) Low (101 - 118)
Moderate (118 - 134) Moderate (118 - 134)
High (134 - 152) High (134 - 152)
Very High (152 - 213) Very High (152 - 213)
Probability Geogenic As F exceeding WHO (8)
Very Low (<10%) Very Low (<10%)
Low (10-25%) Low (10-25%)
Moderate (25-50%) Moderate (25-50%)
High (50-75%) High (50-75%)
Very High (>75%) Very High (>75%)
Probability As greater than 10 ug per l (9)
0.98 - 0 0.98 - 0
Probability F greater than 1.5 mg per l (10)
100 - 0 100 - 0
Salinity (mg per l) (11)
< 500 < 500
500 - 1000 500 - 1000
1000 - 2000 1000 - 2000
2000 - 15000 2000 - 15000
> 15,000 > 15,000
Hydrogeological Environment (12)
Igneous Igneous
Basement Basement
Unconsolidated Unconsolidated
Consolidated Sedimentary - Fractured Consolidated Sedimentary - Fractured
Consolidated Sedimentary - Intergranular Consolidated Sedimentary - Intergranular
Consolidated Sedimentary - Intergranular and Fractured Consolidated Sedimentary - Intergranular and Fractured
Surface water Surface water
Land Cover (13)
No Data No Data
Shrubs Shrubs
Herbaceous Vegetation Herbaceous Vegetation
Cultivated and managed vegetations/agriculture (cropland) Cultivated and managed vegetations/agriculture (cropland)
Urban / built up Urban / built up
Bare / sparse vegetation Bare / sparse vegetation
Snow and Ice Snow and Ice
Permanent water bodies Permanent water bodies
Herbaceous wetland Herbaceous wetland
Moss and lichen Moss and lichen
Closed forest, evergreen needle leaf Closed forest, evergreen needle leaf
Closed forest, evergreen, broad leaf Closed forest, evergreen, broad leaf
Closed forest, deciduous broad leaf Closed forest, deciduous broad leaf
Closed forest, mixed Closed forest, mixed
Closed forest, unknown Closed forest, unknown
Open forest, evergreen broad leaf Open forest, evergreen broad leaf
Open forest, deciduous broad leaf Open forest, deciduous broad leaf
Open forest, mixed Open forest, mixed
Open forest, unknown Open forest, unknown
Open Sea Open Sea
Ramsar Sites (14)
Water bodies in Africa (15)
Rivers in Africa (16)
Intermittent Intermittent
Perennial Perennial
USDA Soil Texture (0-20 cm depth) (17)
Clay Clay
Silty Clay Silty Clay
Sandy Clay Sandy Clay
Clay Loam Clay Loam
Silty Clay Loam Silty Clay Loam
Sandy Clay Loam Sandy Clay Loam
Loam Loam
Silt Loam Silt Loam
Sandy Loam Sandy Loam
Loamy Sand Loamy Sand
Sand Sand
USDA Soil Texture (20-50 cm depth) (18)
Clay Clay
Silty Clay Silty Clay
Sandy Clay Sandy Clay
Clay Loam Clay Loam
Silty Clay Loam Silty Clay Loam
Sandy Clay Loam Sandy Clay Loam
Loam Loam
Silt Loam Silt Loam
Sandy Loam Sandy Loam
Loamy Sand Loamy Sand
Sand Sand