WMS:Post Processing: Difference between revisions
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===Floodplains=== | ===Floodplains=== | ||
Each floodplain delineation results in a water surface elevation and a flood depth | Each floodplain delineation results in a water surface elevation and a flood depth dataset. Each pair of datasets are organized in a folder underneath the TIN in the Project Explorer. You can set the contour options for a TIN and select the dataset you wish to be active and displayed from the Project Explorer. | ||
[[Image:image330.gif]] | [[Image:image330.gif]] | ||
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===Probabilistic Floodplain Boundary=== | ===Probabilistic Floodplain Boundary=== | ||
A final | A final dataset showing the probability of flooding is also created from all of the individual floodplain datasets. The probabilistic flood plain indicates for each vertex on the TIN the percentage of model runs that resulting in inundation at the point. | ||
[[Image:image135.jpg]] | [[Image:image135.jpg]] | ||
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===Annual Exceedance Probability (AEP) Map=== | ===Annual Exceedance Probability (AEP) Map=== | ||
When using the stochastic hydrologic/hydraulic/floodplain delineation tools it is possible to generate an annual exceedance probability map. This is done by generating inundation maps that consider the range of all possible floods for all return periods. The result is a map that identifies the annual exceedance probability of flooding for every TIN vertex. For example if a point is flooded 10 times in 1000 simulations then it would represent the .01 probability. The [[WMS:Return Period to Feature Objects|Return Period | When using the stochastic hydrologic/hydraulic/floodplain delineation tools it is possible to generate an annual exceedance probability map. This is done by generating inundation maps that consider the range of all possible floods for all return periods. The result is a map that identifies the annual exceedance probability of flooding for every TIN vertex. For example if a point is flooded 10 times in 1000 simulations then it would represent the .01 probability. The [[WMS:Return Period to Feature Objects|Return Period → Feature Objects...]] command allows you to generate contours from the AEP map for specified return periods. | ||
[[Image:AEPMAP.jpg]] | [[Image:AEPMAP.jpg]] | ||
Revision as of 17:08, 6 February 2013
After finishing a stochastic simulation there are two primary results read back into WMS for each simulation: hydrographs from the HEC-1 model, and the floodplain depths and water surface elevations for each run.
Hydrographs
A series of hydrographs are loaded for each hydrograph station and can be viewed in the normal way hydrographs are viewed.
Floodplains
Each floodplain delineation results in a water surface elevation and a flood depth dataset. Each pair of datasets are organized in a folder underneath the TIN in the Project Explorer. You can set the contour options for a TIN and select the dataset you wish to be active and displayed from the Project Explorer.
Probabilistic Floodplain Boundary
A final dataset showing the probability of flooding is also created from all of the individual floodplain datasets. The probabilistic flood plain indicates for each vertex on the TIN the percentage of model runs that resulting in inundation at the point.
Close up view
Annual Exceedance Probability (AEP) Map
When using the stochastic hydrologic/hydraulic/floodplain delineation tools it is possible to generate an annual exceedance probability map. This is done by generating inundation maps that consider the range of all possible floods for all return periods. The result is a map that identifies the annual exceedance probability of flooding for every TIN vertex. For example if a point is flooded 10 times in 1000 simulations then it would represent the .01 probability. The Return Period → Feature Objects... command allows you to generate contours from the AEP map for specified return periods.
Previous Step in Stochastic Modeling
Related Topics
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