Transcript broad-brush - Eionet Forum

Producing “broad-brush” water resource
balances at the EEA level under the
SEEAW methodology.
Towards regular production of water resource account
Philippe Crouzet
BSS2 /Spatial group
1
Place of the accounts in the process
•
Immediate term: 2008 water resource report,
provisional data flows
•
•
•
From now, for the next 4 years: implementing
water resource accounts
•
•
•
•
2
Report output, issues analysis
Fuelling water resource accounts with best available data
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
What are natural assets resource
accounts?
•
SEEA 2003, is a satellite system of the
System of National Accounts. It comprises:
•
•
•
•
•
3
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.
Accounting conceptual model applied to
water assets accounts
Gain in stock
e.g. by storage
Do gains
compensate
for losses?
Can gain
substitute to
losses?
Loss of stock
e.g. by usage
4
Has the quality of
the stock been
maintained?
Accounting rationales
•
The accounting algebra depends on the
specificities of the asset:
•
•
•
•
5
water assets account is a compromise between stocks
and flows, with predominance of flows (e.g. rivers) or
stocks (e.g. Glaciers, groundwater),
Where flow dominated, availability is immediate, only
storage spares for the future, limiting time
compensation
If physical transfer device does not exist (aqueduct, river,
etc.), defining space compensation
Processing resolution and aggregation rules must
take these constraints into consideration
Relationship resource / demand
•
Same averages may result from opposed issues
Annual time step of accounting is
relevant (even resource, even
demand)
•
6
Annual time step does not show
the water shortage (odd
resource, seasonal demand)
Both yearly average are WRI=0.31, vs. averages of monthly
WRI being respectively 0.33 (left) and 0.71
Reporting accounts results
INLAND WATER ACCOUNTS / RESOURCE ACCOUNTS IN RAW QUANTITIES
T3 - SYNTHESIS BALANCE SHEET
YEAR
- COUNTRY
: FRANCE
- UNIT
: Gm³
(SUPPLY)
OF TRANSFERS
MATRIX
- T2A
T1B: 1981
- TOTAL
INPUT AND OUTPUT
TO BETWEEN
THE (FROMSECTORS
THE) WATER RESOURCE SYSTEM
INLAND WATER ACCOUNTS / RESOURCE ACCOUNTS IN RAW QUANTITIES
w1
w2
w3
u4
u3 RESOURCE
u2 WATER
u1 OF THE
T1 - ACCOUNT OF THE USES
w1
w2
w3
YEAR : 1981 - COUNTRY : FRANCE - UNITSoil
: Gm³
&
•
w4
w5
u6
w5
u5
w4
Lakes &
u7
TOTAL
(1)
WATER
Distribution of
RESOURCE
TOTAL
(incl.
drink water
SYSTEM
communal
Nomenclature is standard and refers to
- INTERNAL TRANFERS BETWEEN HYDROLOGICAL SUB-SYSTEMS
SEEAW and economic accounts
from origin
to recipient
nomenclatures
• Report is input-output table for time and
space unit:
to recipient
T1A - WATER RESOURCE AND USE BY
from originT2B
Precipitation
Agriculture
f11
INITIAL STOCK
•
•
Snow & ice
Sewerage
TOTAL
WATER RESOURCE BY USERS
Lakes
& reservoirs
Primary
withdrawals
(extraction…)
f34 withdrawals (extraction…)
Primary
(incl. urban cleaning, canals)
services
Other
Supply
of government
water
TO other
agents/sectors
1.30
2.90
0.11
0.30
0.19
u5
52.30
1.50
u6
7.00
1.00
urban cleaning,
canals)
services)
u72365.60
u8
"
u9 2365.60
575.00
Other
"
"
Distribution of
Energy w2
of1.00
552.00
20.50
1.50 Distribution
575.00
government575.00
w1
w3
w4
w5
f23B "
Manufacturing
38.00drink water (incl.
38.00
Fisheries
(hydopower and
Mining
water for
Sewerage
services (incl.
Groundwater
communal
Soil &
Snow & industry
ice
Lakes
&
Rivers
SPONTANEOUurban cleaning,
cooling)0.00
irrigation 38.00
38.00
38.00
services) 6.40
6.40
canals)
-252.60 3.45
0.00 0.00
0.00555.45
19.10
130.70
23.00
-17.00
0.07
0.20
1.70
250.30
4.00
0.00
3.47
0.08 "
0.00
5.50
0.82
0.66
260.70
0.00
0.33
23.00
322.70
0.00
0.0717.50
5.993.80
10.40
0.33
0.06
0.00
0.05
0.46
-30.55
30.55
0.27
137.10
6.40
19.53
0.50
0.60
144.10
0.00
21.00
0.00
0.50
3.45
4.50
0.00252.60 19.53118.00
0.00
0.00
-6.62
0.00 6.62
-302.90302.90
6.40
"
0.00
137.10
2.53
23.60
0.03
3.45
0.00
3.50
121.90
0.00
402.30
6.40
2.10
0.08
118.00
23.60
1048.75
0.60
0.47
17.00 3.45
402.30
6.20
TOTAL USE BY SECTORS (USERS)
0.00
0.00
-1.00
0.17 1.00
-6.44
118.00
-23.65
2.08
17.50
-3.45
3.80
37.17
0.35
0.00
0.10
0.52
4.00 -0.70
0.70
-304.70
304.70
10.40
-0.66
1.27
0.00
4.00-51.00
51.00
-51.00
0.60
260.70
51.00
0.29
-230.00
230.00
-231.00
231.00
0.07
312.25
0.06
623.87
1.90
-2.96
2.19
-2.96
1.750.01
22.59
0.82
0.641.10
-0.05 -0.05
18.48
18.48
16.83
3.50
3.50
0.60
0.60
4.60
0.05
0.05
22.58
22.58
79.95
555.452218.48
144.10
29.80
21.00
52.90
5.50
7.05
322.70
2388.18
1048.75
0.07
5.99
0.33
6.20
312.30
646.45
0.06
1.90
4.50
0.00
302.85
26.10
19.53
3.50
0.01
0.00
37.17
0.02
4.30
0.00
19.53
-0.05
0.66
0.56
3.80
-37.17
7.62
0.00
-0.04
2.22
2.88
302.90
4.50
GLOBAL AVAILABLE ANNUAL RESOURCE = (D - f23B)
0.50
0.00
2.08
-1.10
1.10
0.00
0.01
0.00
252.60
0.46
0.01
Example refers to test case on whole France
(software check of the aggregate)
f15
Export
of(incl.
water
AND FINAL
OUTPUT
Backflows WITHDRAWALS
Returns
of lost
water
leaks)
f311
1.05
(Returns of
CHANGES
IN STOCKS
(NET ACCUMULATION
OF=WATER)
= (H - E)
CHANGES IN STOCKS
(NET
ACCUMULATION
OF
WATER)
(S2
S1)
Returns
of
waste
water
f312
water)
TOTAL OUTPUT FROM THE WATER SYSTEM AND NET
FINAL STOCK
Irrigation
3.45
ACCUMULATION = (f23B + E + F)
7
20.50
0.03
Export of water for delivery
f151
WITHDRAWALS
Natural outflows towards territories (regions,
Export of water
f131
other agents/sectors
FROM
of water
Supply
Natural
outflows
towards
territories
catchment basins…)
f23
A
SPONTANEOUS
INTERNAL
AND FINAL
Export
of waste
water to(regions,
the sea INPUT
catchment
basins…)
0.30
f152b
OUTPUT( - )
Natural
outflows
towards the sea
f132
Natural
outflows
towards
the
sea
Evapo-transpiration
NET USES = (B - f352)
u426.30
Riversof
Distribution
for
water
Rivers
irrigation
0.60
Evapo-transpiration
w5 Evapo-transpiration
f16
Households
PRIMARY
•
2200.00
u3
Natural assets
"
"
Rivers
"
Inter-agents
exchanges
Irrigation
f321
SPONTANEOUS
INTERNAL OUTPUT
w4
Fisheries
552.00
Agriculture
w2
Groundwater
RETURNS
AND
Returns
of waste
water
f312
TOTAL
INPUT
TO
THE
WATER
RESOURCE SYSTEM
Supply
of
water
FROM
other
agents/sectors
IRRIGATION
Distribution of drink water (incl. communal services)
vegetation
Soil &
80.00
u2
u1
Precipitation
Outside natural influents
Fisheries
Users
natural influents
f12 of lostOutside
Returns
water (incl. leaks)
(hydopower and cooling)
Energy
Used
resource
f14 of waste
Import
of water
Returns
water
Import
of
water
Mining
w1
Soil & vegetation
NET BALANCE
OF INTERNAL TRANSFERS = (f23 A - f23B)
Irrigation
f34a
Extraction from groundwater
Manufacturing
Primary
withdrawals industry
INTERNAL
(extraction…) SPONTANEOUS
Returns
of lost INPUT
water (incl. leaks)
f311
f34b for irrigation
Withdrawal from surface water
Distribution of water
w3
Groundwater
Snow & ice
Energy
Manufacturing
reservoirs
Lakes &
Mining
and
(hydopower
Groundwater
Snow & ice industry
reservoirs
sectors vegetation cooling)
Agriculture
u9
u8
TOTAL
(2)
GENERAL
WATER
Other
UTILISATION government
TOTAL
SYSTEM services (incl.
Sewerage
1.70
5.53
2.08
402.30
0.42
"
0.00
-305.36
-51.00
0.66
-231.00
2388.19
4.44
0.52
4.44
0.00
Aims 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
8
GIS river organisation
• Water flows following hydrological features, the only ones
that can yield consistent I/O tables, whereas WFD
RBDs
systems are blend of administrative and hydrological
features: analytical levels and reporting levels are
connected thanks to conceptual model:
CCM
Strahler O2
catchments
9
Analytical resolution and data issues
• Region basins and sub-basin driven by
geography plus WFD
constraints,
Rhone/CH
: >=2 FSU
however:
• Hydrological aggregation area < ~50,000
km2 for large homogeneous watersheds,
• WFD aggregation driven by RBD and subunits, but RBD can be disjoined, very
large, overlapping sea areas -> functional
RBDs and functional sub-units
• Data disaggregation at the adequate
Po / CH
4FSU
analytical level is a complex: >=
issue,
to
solve by a feed-back process
10
From 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
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Country
Luxembourg
Malta
Germany
France
Denmark
Czech Republic
Netherlands
Latvia
Spain
Cyprus
Poland
Lithuania
Greece
Ireland
Sweden
Estonia
Portugal
Norway
Austria
Italy
Belgium
Hungary
Slovenia
Finland
Bulgaria
Romania
Slovakia
Switzerland
Together
Data
•
•
•
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PU
Urban areas and
% of urban
pop.
sources
and
vs. RBD limits
437513
360390
52007155
38092895
3390250
5841807
9319223
1314787
24446813
463562
19580964
1748721
5643316
2080448
4499633
663458
5111779
2089858
3604284
24344471
4370359
4194369
799367
1905092
2763179
7448160
1799272
2139013
230460138
issues
456710
404107
82500000
60700000
5418313
10200000
16300000
2300027
43400000
835307
38200000
3415046
11100000
4150566
9024040
1345005
10600000
4618450
8211359
57500000
10500000
10100000
1998200
5245071
7740928
21600000
5387152
7440711
440690992
U/T
NbOfUZ
95.8
1
89.2
2
63
63
62.8
133
62.6
4
57.3
13
57.2
29
57.2
3
56.3
43
55.5
2
51.3
34
51.2
5
50.8
9
50.1
5
49.9
11
49.3
2
48.2
14
45.3
6
43.9
5
42.3
47
41.6
7
41.5
9
40
2
36.3
4
35.7
7
34.5
27
33.4
8
28.7
4
499
52.3
Rainfall: ATEAM (ready) / MARS (signed
provisional agreement) / ECMWF (underway)
Run-off: On the basis of 500 -1000 analytical
(unitary catchments), 500 to 4000 gauging
stations monthly data required, process
underway with ETC/W
Usage data should follow the rule “accuracy
results from precision in large components”,
and is under progress
Ways data shall be processed and
included: 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
13
Ways data shall be processed and
included: 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.
14
Ways data shall be processed and
included: 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
15
Ways data shall be processed and
included: abstractions and return flows
(domestic and industry)
•
•
•
•
16
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
Ways data shall be processed and
included: 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)
17
Ways data shall be processed and
included: 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.
18
Thanks for your attention
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