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Coastal Aquifers in the Mediterranean
This map presents information on coastal aquifers in the Mediterranean. For additional information on the assessment of risks and uncertainties relating to Mediterranean coastal... -
Areas of saline groundwater
This map presents areas identified as having saline groundwater (i.e. salinity regionally exceeding 5 g/l), and where groundwater is generally not suitable for human... -
Groundwater as abstraction source for drinking water supply in 2014
Data is given as the percentage of water abstracted for drinking supply that comes from groundwater. Abstraction sources include: groundwater, spring water, surface water, other... -
Percentage of population with access to improved sanitation
This map presents the percentage of population with access to improved sanitation for the last collected values in world cities during the period 1990 to 2007. It also provides... -
Flood risk at UNESCO World Heritage natural sites
This layer shows UNESCO World Heritage site subjected to flood risk. -
Areas of heavy groundwater abstraction
This map presents areas of heavy groundwater abstraction with over-exploitation around the world.For more information, visit: www.whymap.org -
Global upstream storage (2010)
Upstream storage measures the water storage capacity available upstream of a location relative to the total water supply at that location from 1950 to 2010. Higher values... -
Human Water Stress in Transboundary River Basins
The Human Water Stress indicator deals with the quantity of water available per person per year relative to the internal and upstream area water supplies, on the premise that... -
Annual amount of renewable transboundary groundwater resources per capita
Calculated as the long-term mean transboundary groundwater recharge, including man-made components, divided by the number of inhabitants of the area occupied by the aquifer.... -
Global threatened amphibians (2010)
Measures the percentage of freshwater amphibian species classified by IUCN as threatened. Higher values indicate more fragile freshwater ecosystems and may be more likely to be... -
Global seasonal variability
Seasonal variability measures variation in water supply between months of the year. -
Total water delivered to households in 2014
Data is given in m³/capita/year.The full data are available online. For more information, visit: www.waterstatistics.org -
Urban water management challenges versus intitutional and economic capacities...
This layer shows limits pose by challenges and capacities to African cities. Although the main challenges in terms of magnitude exist in the larger cities, these are also... -
Hydropower plants in the Dinaric Alps region (2013)
Water accounts for the main source of production of electrical power in the Dinaric Alps, and contribute significantly to the countries’ economies. Albania gains 83 % of all... -
Environmental Water Stress in Transboundary River Basins
The Environmental Water Stress in Transboundary River Basins indicator focuses on the water quantity aspect and considers hydrological alterations from monthly dynamics of the... -
Total Dissolved Solids (TDS) in the Ocotepeque-Citala Aquifer (Dry season)
This map provides information on Total Dissolved Solids (TDS) in mg/L in the Ocotepeque-Citala Aquifer in dry season (April). -
Global upstream protected land
Upstream protected land measures the percentage of total water supply that originates from protected ecosystems. Modified land use can affect the health of freshwater ecosystems... -
Global Groundwater Vulnerability to Floods and Droughts
This map presents the intrinsic vulnerability of groundwater systems and the sensitivity or resistance of those systems to natural disasters. The concept of groundwater... -
Surface water as abstraction source for drinking water supply in 2014
Data is given as the percentage of water abstracted for drinking supply that comes from surface water. Abstraction sources include: groundwater, spring water, surface water,... -
Transboundary River Basins around the World
The world’s transboundary river basins span 151 countries, include more than 2.8 billion people (around 42 % of the world’s population), cover 62 million km2 (42 % of the total...
