Reporting sheet no.3

State and quantity of water resources

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

Framework for assessing water issuesFramework for assessing water issues

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

Country information on water balanceCountry information on water balance

Water availabilityWater availability

River runoff Per capita per country

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

Seasonal variationSeasonal variation

Water quantityWater quantity

projected trends – projected trends – river flow (2070-2100)river flow (2070-2100)

A2 scenarioA2 scenarioHIRHAM RCMHIRHAM RCM