Transcript Titel presentatie

PUNN calculations
Theo Witjes
[email protected]
5 May 2015
1
River basin explorer
RIBASIM (hydrology, water balance)
Water
balance
Matlab + neural
network tool
Deltashell (modelling framework)
WFD explorer model
Delwaq (water quality)
Hydrology
UĞURLUOĞLU
Ecology (EQR’s)
PUNN calculations
13 May 2015
2
Steps PUNN calculations
GOAL: To be able to predict the effect of measures
on ecological water quality
METHOD: Developing ‘ecological knowledge rules’
with a neural network. An ecological knowledge
rules defines the relationship between the
ecological water quality and key factors for
ecology
13 May 2015
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Steps PUNN calculations
1. Identify the water types at which the ecological
knowledge rules are calculated
2. Assign key factors for ecology
rivers
fast
flowing ,
high
rivers
Results:
The process is
documented in a
memorandum.
Method:
workshops with
ecology experts.
COD
Temperature
X
tot-N
tot-P
Modifications
fast
flowing
permanent
low
fast
flowing
temporal
low
Slow
flowing
rivers
lakes
Deep
lakes
(saline
and fresh)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Conductivity
Toxic elements
X
X
X
X
Artificial flow regime
X
X
X
X
Suspended solids
X
X
X
X
X
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Steps PUNN calculations
3. Build a data matrix with data on EQR’s and key
factors.
(the data set for the BM - PUNN’s can be provided to you), Excel
13 May 2015
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Steps PUNN calculation
4. Calculate knowledge rules with a neural network
a. Adapt the matlab tool for the key variables,
EQR’s and water types in the Büyük Menderes
river basin
b. Asign the data matrixes to the tool
c. Calculations (next slide)
d. Read out results from calculations
25 februari 2010
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(more in the article on this subject we’ve provided to you)
25 februari 2010
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Steps PUNN calculation
e. Results: (1 of 14)
The presentation with all PUNN’s
has been provided to you.
25 februari 2010
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Steps PUNN calculatiom
5. Expert validation
Working session with key experts: how can we
improve on the PUNN’s? (results of this session
are available in a memorandum)
6. Recalculation: to be conducted
7. Inclusion in RBE: to be conducted
How? 
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Steps PUNN calculation
These files are accesable in your WFD-explorer installation. To add new plugins you need a software programmer.
13 May 2015
10
Steps water quality model
1. Water balance (RIBASIM).
Output RIBASIM, input WFD-explorer: shapefiles
(GIS) + data on flows (.csv)
This data is already available to you (Alper). The
manual (WFD-explorer, download from WFDexplorer website) offers instructions on how to
import these files.
13 May 2015
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Steps water quality model
2. Substance balance
(conservative substance-calculation with retention
factors for non-conservative substances)
INPUT: diffuse sources, point sources (excel of csv).
 X, Y, loads on N, P, SS, COD
 The data files can be provided to you for as far
as you don’t have them yet
 The manual gives an exact description of data
formats and how to import them to the explorer
13 May 2015
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Steps water quality model
3. Ecology in the water bodies
Add values for toxicity, modifications, flow regime,
temperature to all water bodies
Input file: csv or excel: X and Y, values
(manual gives a detailled description of file formats
and how to include them in the model)
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Steps in water quality model
Source code: is mostly already available to you (look
in installation files  open files with nodepad)
Output: model of the Büyük Menderes with
hydrology, water quality, ecology, possible
measures  this will be provided to you and
used in the next mission
For the measures and costs of measures work still
needs to be conducted.
25 februari 2010
14
Recommendations and opportunities
Monitoring
Macrophytes, (macro-algae and phytobenthos)
Monitoring some substances with direct relation to
ecology on a more frequent basis
Link to the national system (data base) for water quality
and ecological data
Up scaling ecological knowledge rules to the other ecoregions
Training of modellers and strategy developers
25 februari 2010
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