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Friday, 31 May 2019 12:44

Some indicators of water-related risks in the Danube river basin

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Indicators on water-related-risks : Baseline Water Stress - Flood Occurrence - Groundwater stress -Upstream Protected Land - Seasonal Variability - Interannual Variability - Upstream Storage (Map developed by www.riversnetwork.org -Source of data : Aqueduct Global Maps 2.1 Data)

Baseline Water Stress :  Baseline water stress measures total annual water withdrawals (municipal, industrial, and agricultural) expressed as a percentage of the total annual available blue water. Higher values indicate more competition among users. Sources: WRI Aqueduct; FAO AQUASTAT; NASA GLDAS-2; Shiklomanov and Rodda; Flörke et al.; Matsutomi et al.

Flood Occurrence : Flood occurrence is the number of floods recorded from 1985 to 2011. Source: Brakenridge, Dartmouth Flood Observatory

Groundwater Stress : Groundwater stress measures the ratio of groundwater withdrawal relative to recharge rate; values above one indicate where unsustainable groundwater consumption could affect groundwater availability and groundwater-dependent ecosystems. Source: Gleeson, Wada, Bierkens, and van Beek

Upstream Protected Land : Upstream protected land measures the percentage of total water supply that originates from protected ecosystems. Higher ratios indicate higher amounts of runoff originating from upstream areas that are protected under conservation easements. Modified land use can affect the health of freshwater ecosystems and have severe downstream impacts on both water quality and quantity. Sources: WRI Aqueduct; NASA GLDAS-2; IUCN, UNEP

Seasonal Variability : Seasonal variability measures variation in water supply between months of the year. Sources: WRI Aqueduct; NASA GLDAS-2

Interannual Variability : Inter-annual variability measures the variation in water supply between years. Sources: WRI Aqueduct; NASA GLDAS-2

Upstream Storage : Upstream storage measures the water storage capacity available upstream of a location relative to the total water supply at that location. Higher values indicate areas more capable of buffering variations in water supply (i.e. inter-annual and seasonal variation) because they have more water storage capacity upstream. Sources: WRI Aqueduct; NASA GLDAS-2; Lehner et al.

Sources of data and referencesSources and references - Data Bases

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