1 Producing “broad-brush” water Producing “broad-brush” water resource balances at the EEA level resource balances at the EEA level under the SEEAW methodology. under the SEEAW methodology. Towards regular production of water resource account Towards regular production of water resource account Philippe Crouzet BSS2 /Spatial group
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1 Producing “broad-brush” water resource balances at the EEA level under the SEEAW methodology. Towards regular production of water resource account Philippe.
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Producing “broad-brush” water resource Producing “broad-brush” water resource balances at the EEA level under the balances at the EEA level under the
SEEAW methodology.SEEAW methodology.Towards regular production of water resource accountTowards regular production of water resource account
Philippe CrouzetBSS2 /Spatial group
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Place of the accounts in the processPlace of the accounts in the process
• Immediate term: 2008 water resource report, provisional data flows• Report output, issues analysis• Fuelling water resource accounts with best available data
• From now, for the next 4 years: implementing water resource accounts• Assessing data gaps and data inconsistencies,
harmonising data sources vs. nomenclatures• Capacity building for the regular WA production• Testing SEEAW on a large area (only limited experiments
for the time being)• Fuelling the indicators from optimal data
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What are What are natural assets resource natural assets resource accountsaccounts??
• SEEA 2003, is a satellite system of the System of National Accounts. It comprises:• Flow accounts for pollution, energy and materials. • Environmental protection and resource
management expenditure accounts• Natural resource asset accounts. These accounts
record stocks and changes in stocks of natural resources such as land, fish, forest, water and minerals
• Valuation of non-market flow and environmentally adjusted aggregates
• The water sub-system (SEEAW) is a conceptual framework for the organization of physical and economic information related to water, consistent to those of the SEEA.
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Accounting conceptual model applied to Accounting conceptual model applied to water assets accounts water assets accounts
INLAND WATER ACCOUNTS / RESOURCE ACCOUNTS IN RAW QUANTITIES
T3 - SYNTHESIS BALANCE SHEETYEAR : 1981 - COUNTRY : FRANCE - UNIT : Gm³
w1 w2 w3 w4 w5
Soil & vegetation
Groundwater Snow & iceLakes &
reservoirsRivers
80.00 2200.00 26.30 52.30 7.00 2365.60 " 2365.60
f11 552.00 20.50 1.50 1.00 575.00 " 575.00
f12 0.00 38.00 38.00 38.00
f14 Import of water 0.00 0.00
-252.60 19.10 -17.00 0.20 250.30 0.00 0.00
f311 0.00 6.40 0.00 0.00 6.40 -6.44 -0.04
f312 0.60 0.00 23.00 23.60 -23.65 -0.05
f321 3.45 3.45 -3.45 0.00
f34 -6.62 0.00 -30.55 -37.17 37.17 0.00
f16 -302.90 -1.10 -0.70 -304.70 -0.66 -305.36
f131 " -51.00 -51.00 -51.00
f132 -1.00 -230.00 -231.00 -231.00
f15 Export of water -2.96 -2.96
-0.05 18.48 3.50 0.60 0.05 22.58 0.01 22.59
79.95 2218.48 29.80 52.90 7.05 2388.18 " 2388.19
Outside natural influents
NET BALANCE OF INTERNAL TRANSFERS = (f23 A - f23B)
INITIAL STOCK
Precipitation
FINAL STOCK
CHANGES IN STOCKS (NET ACCUMULATION OF WATER) = (S2 - S1)
Evapo-transpiration
RETURNS AND IRRIGATION
TOTAL (1) WATER
RESOURCE SYSTEM
TOTAL (2) WATER
UTILISATION SYSTEM
GENERAL TOTAL
PRIMARY WITHDRAWALS AND FINAL OUTPUT( - )
Returns of lost water (incl. leaks)
Returns of waste water
Irrigation
Primary withdrawals (extraction…)
Natural outflows towards the sea
Natural outflows towards territories (regions, catchment basins…)
INLAND WATER ACCOUNTS / RESOURCE ACCOUNTS IN RAW QUANTITIES
T3 - SYNTHESIS BALANCE SHEETYEAR : 1981 - COUNTRY : FRANCE - UNIT : Gm³
w1 w2 w3 w4 w5
Soil & vegetation
Groundwater Snow & iceLakes &
reservoirsRivers
80.00 2200.00 26.30 52.30 7.00 2365.60 " 2365.60
f11 552.00 20.50 1.50 1.00 575.00 " 575.00
f12 0.00 38.00 38.00 38.00
f14 Import of water 0.00 0.00
-252.60 19.10 -17.00 0.20 250.30 0.00 0.00
f311 0.00 6.40 0.00 0.00 6.40 -6.44 -0.04
f312 0.60 0.00 23.00 23.60 -23.65 -0.05
f321 3.45 3.45 -3.45 0.00
f34 -6.62 0.00 -30.55 -37.17 37.17 0.00
f16 -302.90 -1.10 -0.70 -304.70 -0.66 -305.36
f131 " -51.00 -51.00 -51.00
f132 -1.00 -230.00 -231.00 -231.00
f15 Export of water -2.96 -2.96
-0.05 18.48 3.50 0.60 0.05 22.58 0.01 22.59
79.95 2218.48 29.80 52.90 7.05 2388.18 " 2388.19
Outside natural influents
NET BALANCE OF INTERNAL TRANSFERS = (f23 A - f23B)
INITIAL STOCK
Precipitation
FINAL STOCK
CHANGES IN STOCKS (NET ACCUMULATION OF WATER) = (S2 - S1)
Evapo-transpiration
RETURNS AND IRRIGATION
TOTAL (1) WATER
RESOURCE SYSTEM
TOTAL (2) WATER
UTILISATION SYSTEM
GENERAL TOTAL
PRIMARY WITHDRAWALS AND FINAL OUTPUT( - )
Returns of lost water (incl. leaks)
Returns of waste water
Irrigation
Primary withdrawals (extraction…)
Natural outflows towards the sea
Natural outflows towards territories (regions, catchment basins…)
• Nomenclature is standard and refers to SEEAW and economic accounts nomenclatures
• Report is input-output table for time and space unit:• Natural assets• Inter-agents exchanges
• Example refers to test case on whole France (software check of the aggregate)
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Aims of the “broad –brush” exerciseAims of the “broad –brush” exercise
• Obtain comparable results at the ‘Region basin’ (and sub-basin) and ‘RBD’ (and sub-unit) levels “ERC2” river GIS
• Implement calculation processes (Nopolu) in view of regular production,
• Test data quality and consistency, improve data flows, improve SEEAW methodology
• Deliver results to link with economic data and fuel EEA SoE and other assessments
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GIS river organisationGIS river organisation•Water flows following hydrological features, the only ones
that can yield consistent I/O tables, whereas WFD systems are blend of administrative and hydrological features: analytical levels and reporting levels are connected thanks to conceptual model:
RBDs
CCM Strahler O2 catchments
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Analytical resolution and data issuesAnalytical resolution and data issues
• Region basins and sub-basin driven by geography plus WFD constraints, however:• Hydrological aggregation area < ~50,000
km2 for large homogeneous watersheds,• WFD aggregation driven by RBD and sub-
units, but RBD can be disjoined, very large, overlapping sea areas -> functional RBDs and functional sub-units
• Data disaggregation at the adequate analytical level is a complex issue, to solve by a feed-back process
Rhone/CH : >=2 FSU
Po / CH: >= 4FSU
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From CCM2 to ERC: huge preparationFrom CCM2 to ERC: huge preparation
• CCM2 “basins” (source for “Region basins”): 91,912 -11332 spurious= 80,580• At least 30,000 inconsistent, because of
area <0.1 km2• ~15,000 only > 10km2
• Poor information on sub-units jeopardises GIS building
Ways data shall be processed and Ways data shall be processed and included: Rainfallincluded: Rainfall
• Raw: from data, control vs. recent sources and homogenisation,
• Evaporation: likely to be modelled with temperature and vapour pressure (Turc or likely Penman formula, since vapour pressure is available (albeit wind is not) and vegetation cover known from CLC or taken from only recent data sets
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Ways data shall be processed and Ways data shall be processed and included: run-offincluded: run-off
• From gauging stations, monthly data, extrapolated between stations or nodes, taking abstractions and returns into account
• Storage: only large lakes and reservoirs considered (data source Eldred2 and lakes layers). Where local storage changes are known, they are considered, especially where refilling is one over N years.
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Ways data shall be processed and Ways data shall be processed and included: groundwaterincluded: groundwater
• Only major aquifer systems to be delineated (no EU GW GIS available), supported by inputs from EGS,
• Data from WaterBase / data collection at the RBD.
• Groundwater inflow / outflow if a weak point of the hydrosystems functioning knowledge for the time being
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Ways data shall be processed and Ways data shall be processed and included: abstractions and return flows included: abstractions and return flows (domestic and industry)(domestic and industry)
• From individual data for large sources, where available. Larges sources (threshold to define) are processed individually, even though no individual data exist (volume, origin of water, seasonalisation)
• Smaller sources processed statistically, by difference within a statistical data provision unit
• EPR data set mobilised to find industrial data• Sewage outputs considered when potentially
changing water balance (watershed transfer) and contributes to GW -> SW balance
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Ways data shall be processed and Ways data shall be processed and included: seasonal demandsincluded: seasonal demands
• Tourism data poorly known, although making the largest seasonal changes in location of demand and returns (irrigation being only time depending)
• Origin of movements (minus demand) lesser known that target of movements (larger demand)
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Ways data shall be processed and Ways data shall be processed and included: irrigationincluded: irrigation
• Data sources to refine, with the EEA specialists and agricultural experts from another framework contract
• Potential impact as dry-out of small water bodies not addressed in the broad-brush assessment.
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Thanks for your attentionThanks for your attention