Pan European Water Assets Accounts and Regionalized Water Exploitation Index (WEI+) Beate Werner and Nihat Zal ETC/ICM-NTUA George Bariamis Alexandros Zachos George Karavokiros Ioannis Konstantinou Dimitris Panagos Alexandros Psomas Dimitra Konsta Evangelos Baltas Maria Mimikou WG WA Meeting, 19 th March 2015, Brussels Photo: © Peter Kristensen

Implementation of Water Assets Accounts and updating Water Exploitation Index (WEI+) -Water scarcity conditions and quantitative use of water in Europe -Assessing resource efficieny and sustainability of water use across Europe -Providing further information on Natural Capital Accounting of Water 1.Flow accounts (a) Physical supply and use tables (b) Emission accounts (c) Hybrid and economic accounts 2. Asset accounts (a) Produced assets (b) Water resources (c) Quality accounts 3. Valuation of non-market flows

Scope of the current EEA Water Accounts (based on the UN SEEA-W Temporal and spatial assessment of renewable water resources and sectoral water use – update CSI 0018

Scope of the current EEA Water Accounts (based on the UN SEEA-W Assessment reports Temporal and spatial assessment of renewable water resources and sectoral water use – update CSI 0018

Calculation of Water Exploitation Index DATAHOLDERINTERNALEXTERNAL RWR PRECIPITATION E-OBS V5 X MARS-STAT X EVAPOTRANSPIRATION X ECRINS X SOE+RBMPS X RESERVOIRSELDRED2 X WATER USE COOLING MANUFACTURING EPRTRX BREFS X PLATTS X OIL BREFS X CONCAWE X IRON EUROFER X WORLDSTELL SURVEY X WATER PROCESSING PAPER AND PULPCEPI X TEXTILEBREFS X NON-METAL BREFS X WIKIPEDIA X LIME BREFS X US GEO.SURVEY X GLASS BREFS X EPRTRX FOOD BREFS X EUROSTAT X SUGAR BREFS X EPRTRX AGRICULTUREJRC EU-IGRA X - SUGAR index for estimating the renewable water resources between surface and groundwater - Eurostat country scale data of water abstraction is used as reference ratio to distinguish water abstraction by source among; Surface water Ground water Sea water (i.e. Malta and Cyprus) Based on very heterogenic data sets; - Population (LANDSCAN and Eurostat) -Agriculture -crop water needs and crop area (JRC and Eurostat)

Calculation of Renewable Water Recources F1 F2 WSB Southern Apennines coastal (2007)

Renewable Water Recources F1 F2 F1F2 RENEWABLE WATER RESOURCES - SUMMER

Water abstraction by source (Annual and Seasonal) European overview on Water abstraction and use by source and sector

Water Use by sectors (Annual) European overview on Water abstraction and use by source and sector

WINTER SUMMER European overview on Water abstraction and use by source and sector Water Use by sectors (Seasonal)

Dominant sector of water abstraction WINTERSUMMER European overview on Water abstraction and use by source and sector

Country Scale Water Exploitation Index Which formula is more capable in capturing temporal and spatial variations !?... F1 F2

Regional and seasonal differentiations in WEI across Europe (River Basin District vs Sub basin) F1 WINTER SUMMER

F1 WINTER SUMMER Regional and seasonal differentiations in WEI across Europe (River Basin District vs Sub basin)

F2 WINTER SUMMER Regional and seasonal differentiations in WEI across Europe (River Basin District vs Sub basin)

F2 WINTER SUMMER Regional and seasonal differentiations in WEI across Europe (River Basin District vs Sub basin)

Regional and seasonal differentiations in WEI across Europe (comparion of both formulas) F1 F2

Main outcomes -Both formula indicate that rivers and groundwater bodies are under pressures especially in summer. -Reservoirs are playing very curcial role in supporting seasonal water demands in summer by almost tripling their water supply to the economy -Resource efficieny measures are needed to be implemented particularly in water supply and agricultural sectors -Further investigations are needed in analysing which WEI formula better captures the field realities

Uncertainities -Horizontal and vertical aggregation don’t have one-to-one relation between hydrological and administrative boundaries -Negative values of Renewable water resources due to higher Eta values in summer -Negative values of Water Use due to higher Return values -General uncertainities from the missing data

Uncertainities -Horizontal and vertical aggregation have no one-to-one relation between hydrological and administrative boundaries -Negative values of Renewable water resources due to higher Eta values -Negative values of Water Use due to higher Return values -General uncertainities from the missing data

Timeline of updating CSI 0018 (WEI+) March-May 2015June-August 2015September-October Revision of SoE WQ database -Full integration of SoE WQ data where available and feasible - Cooperation with Joint Research Center on runoff data integration -Validation of the current EEA climatic database with the SoE WQ data -Update water use datasets -Upgrading ECRINS (Spatial reference data) Next version of the Water Accounts; temporal coverage for the years on monthly resolution Expand spatial coverage where data is available (possibly for EEA 32 member countries)

Timeline of updating CSI 0018 (WEI+) Eionet consultation on the WA report Possible revisions and inclusions into the EEA WA results based on the MS feedbacks Second version of the EEA WA Report Proposal of revised CSI 18 Country review of CSI 18 including Eionet and WFD Water Accounts Experts MS review of CSI 18 Publication of new CSI 18 on the EEA website March-May 2015June-August 2015September-October Revision of SoE WQ database -Full integration of SoE WQ data where available and feasible - Cooperation with Joint Research Center on runoff data integration -Validation of the current EEA climatic database with the SoE WQ data -Update water use datasets -Upgrading ECRINS (Spatial reference data) Next version of the Water Accounts; temporal coverage for the years on monthly resolution Expand spatial coverage where data is available (possibly for EEA 32 member countries)

THANKS FOR YOUR ATTENTION!