Reporting sheet no.3 State and quantity of water resources
Dec 10, 2015
EEA/European requirements for its EEA/European requirements for its assessments on water resources and assessments on water resources and water usewater use
The European information needed in relation to water quantity can generally be described as:
• How much is there? (Runoff, availability, demands, water stress.........) –
• Climate change impact on water availability• Getting better or worse?• Pressures on the environment (abstraction and water use by
sectors)• Are they working towards targets? such as are water-pricing
policies used to provide adequate incentives for users to use water resources efficiently
The main policy objectives in relation to water quantity are• To ensure the rates of extraction from our water resources are
sustainable over the long term and to promote sustainable water use based on a long-term protection of available water resource
The core of information on water The core of information on water availability is the water balance availability is the water balance
• P areal precipitation • Qi external inflow • ETa actual
evapotranspiration• Qo total outflow from the
territory (Qo = Qo,s + Qo,n)
• R net recharge into the aquifers
• C consumptive water use• P-ETa = D internal flow
(often also referred to as internally generated depth of runoff)
JRC 2006: FATE & MARSJRC 2006: FATE & MARS
Long-term precipitation
Potential and actual evaporation
Excess rainfall
Mulligan et al 2006: An Atlas of Pan-European Datafor Investigating the Fate of Agrochemicals in TerrestrialEcosystems
Water exploitation index. Total water abstraction per year
as percentage of long-term freshwater resources in 1990 and 2002
0% 20% 40% 60% 80% 100%
IcelandNorway
LatviaCroatia
Bosnia-HerzegovinaSlovenia
Serbia and MontenegroIreland
SlovakiaSwedenFinland
Luxembourg Denmark
AustriaSwitzerland
HungaryEstonia
NetherlandsCzech Republic
GreeceLithuaniaPortugal
TurkeyRomania
FrancePoland
GermanyUK*Italy
MaltaThe FYR. of Macedonia
SpainBelgiumBulgariaCyprus
Total abstraction/long term available resource
WEI90WEI02
WFD Art. 5 &
2010
National montoring and characteri-zation
Eurostat/ OECD Joint Q.
Reporting sheetWater
resource and abstraction
Aggregated by RBD
Water resource and useat country level
Water quantity information
in WISE
SoE reporting-Trend in water abstraction- Water use by sectors- Indicators
Hydrological
services
Reporting sheetRiver flow
Selected gauging stations
Information used by other organisations
Water Framework Directive (WFD) – Water Framework Directive (WFD) – assessments change from country basis to assessments change from country basis to River Basin District (RBD)River Basin District (RBD)
Need for River Basin data on:
Available water resource (long term annual average (LTAA) values/annual values)
• Precipitation (tables; description; trend graphs & maps);
• Evaporation (tables; description); • Renewable water resource/water
balance (tables; description; & graphs/diagrams);
• River run-off (selected gauging stations – LTAA – daily values)
• Localisation and characterization of reservoirs (e.g. volume)
• Salinisation plants
Water availability at RBD levelWater availability at RBD level
Source: Jucar pilot river basin report
WFD WFD InformationInformation
Water uses by socioeconomic sectors• Water uses by sectors Population – Households• Population (number, localization,
trend/projections)• Connection rate to centralized water
supply/public water supply• Tourism/recreationPublic water supply• Trend in water usesAgriculture & irrigation • Crops grown, • Irrigated area• Water abstracted for agricultureIndustry• Economic data• Water abstractedCooling water for energy production and
industry• Economic or production data• Water abstracted
Water use by sectors – RBD Loire-Britany