Guidelines for Modelling Water Sharing Rules in eWater Source
21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling...
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Transcript of 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling...
![Page 1: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/1.jpg)
21 February 2011
Tony Weber
eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling usingSource Catchments
eWater Road Show 21 Feb – Part 2 of 5
![Page 2: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/2.jpg)
Background
Sediment in the Tamar Estuary – Some Questions
•How much?
•Where is it coming from?
•Who might be contributing?
•What might the causes be?
•Will it get worse?
•How do we fix it?
![Page 3: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/3.jpg)
Background
How to model using Source Catchments
•Collect Data
•Understand the catchment
•Build a model
•Check it is OK
•Extract results
•Check it is OK
•Produce final results
![Page 4: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/4.jpg)
Mapping the Catchment
• Major Catchments
![Page 5: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/5.jpg)
Mapping the Catchment
• Land Use
![Page 6: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/6.jpg)
Mapping the Catchment
• Point Sources
![Page 7: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/7.jpg)
Building the Model
• Subcatchment Definition
![Page 8: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/8.jpg)
Building the Model
• Node Link Network
![Page 9: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/9.jpg)
Building the Model
Water Flow•Gauging stations•Real data
![Page 10: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/10.jpg)
Building the Model
• Water Quality
![Page 11: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/11.jpg)
Model Analysis and Uncertainty
Needed to examine how “good” the model was
•It’s possible that random numbers can be just as good
•So ran 1000’s of parameter sets through the model
•Compared to the “calibrated” results
•Gave us an understanding of the uncertainty
•Allowed us to refine the parameters significantly to reduce uncertainty
•Also identified which parameters could be reliably derived from the data
![Page 12: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/12.jpg)
Model Analysis and Uncertainty
![Page 13: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/13.jpg)
Model Results
Basin Loads – TSS
% Distribution
![Page 14: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/14.jpg)
Model Results
Broad Land Use Loads – TSS
![Page 15: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/15.jpg)
Model Results
Spatial Distribution – TSS
•Mean Annual Loads
0 t/yr
3300 t/yr
![Page 16: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/16.jpg)
Model Results
Examining Scenarios
Predevelopment Current Expanded Irrigation0
10000
20000
30000
40000
50000
60000
70000
TSS (t/yr)
TSS (t/yr)
Scenario
Mea
n A
nn
ual
Lo
ad
![Page 17: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/17.jpg)
What does this all mean?
Sediment Sources
![Page 18: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/18.jpg)
Learnings
TEER Catchment Modelling
• Some of the most detailed modelling in Australia
• High degree of certainty in results
• Indicated areas to focus future management
• These are simply tools and should be used as such
• Partnering with industry – a two way street!
![Page 19: 21 February 2011 Tony Weber eWater Tools in Action – The Tamar and Esk Rivers Sediment Modelling using Source Catchments eWater Road Show 21 Feb – Part.](https://reader038.fdocuments.net/reader038/viewer/2022103112/551bcc80550346af588b5254/html5/thumbnails/19.jpg)
NEXT – Australia’s next gen modelling platform
Dr Peter Wallbrink