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Hydraflow Hydrographs Extension in SI units: Calculation Error
Hydraflow Hydrographs Extension in SI units: Calculation Error
I am currently trying to use Hydraflow Hydrographs Extension in SI units. The software is incorrectly converting/reporting the IDF curve values in CM/HR not MM/HR and then carrying that error through the calculation leading to over reported stormwater values. What can be done about this? I see this has been issue in the past - why hasn't it been fixed? mm/hr is a common unit for metric rational method calculations - not cm/hr!
Typically, the unit for I (Intensity) is mm/hr. Yes, it is working as designed, but it is not using the more commmon units. Most hydrology manuals and jurisdictional design standard manuals, using SI units, show the rational method equation with units of mm/hr for intensity. Most IDF charts, on the Y axis, have intensity in mm/hr, but Hydraflow for some reason doesn't. .....
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