QGIS ARR to TUFLOW: Difference between revisions
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===Rainfall Losses===
=====Probability Neutral Losses=====
Probability neutral losses can be toggled on / off in the dialog (default is on). If 'on' this option will use probability neutral losses for the design burst initial loss rather than using the storm initial loss and pre-purst depths. If probability neutral losses are not available in the catchment area, then the method will automatically revert to using the storm initial loss). Currently this option cannot be used in conjunction with the '''complete storm''' option.<br><br>
[[File: ARR_dialog_probability_neutral_losses.PNG]]
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=====NSW Continuing Loss=====
Continuing loss values for NSW will be automatically multiplied by 0.4. This will be reported in the log file as:
* "Catchment is in NSW, multiplying Datahub continuing loss by 0.4"
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=====Pre-burst Percentile=====
The pre-burst percentile used to calculate design burst initial loss, or for pre-burst rainfall depth for the complete storm option, can be changed using the dropdown box in the dialog.<br><br>
[[File: ARR_dialog_preburst.PNG]]
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=====User Defined Losses=====
Users can use their own rainfall loss values. The initial loss value will be treated as a complete storm value and not just for the design burst. For most regions, the design burst loss will be calculated my removing the pre-burst depth from the input loss value. If probability neutral losses are available, the burst initial loss will be calculated using the following equation:<br>
: <tt>IL burst = User IL x IL ARR Prob Neutral / IL ARR Complete Storm</tt><Br><br>
[[File: ARR_dialog_user_losses.PNG]]
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=====Event Independent Continuing Loss=====
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=====Initial Losses For Durations Less Than 1 Hour=====
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===Areal Reduction Factors===
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