SSA Rain Gages
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I am having trouble with the rain gages. The public agency has a critical storm calculation that requires all storms less than the critical storm to be held to the 1 year event and all storms above the critical storm to be held to the next event lower. I would like to assign rainfall values to the predeveloped areas that are equivalent to the allowable events, for my example I am using 2.5, 4.1, 4.7, 5.2 and 5.8 inches for the 1, 10, 25, 50, and 100 year events respectively. I would like to have the offsite and bypassing areas use the correct rainfalls and the pre developed areas to use 2.5, 2.5, 2.5, 4.7 and 5,2 inches for the 1, 10, 25, 50, and 100 year events respectively. This accounts for the calculated 25 year critical storm. According to the software multiple rain gages can be assigned to multiple subareas. However I cannot get them to work together and I have been unable to create two separate rain gages without overwriting the other rain gage storm events. I feel like I got this to work in hydraflow years ago and with this program being all powerfull, I thought this would be easier than it has been.
When I create the 1, 10, 25, 50, and 100 year time series, I am unable to assign them to a specific rain gage. When I attempt to create the 1, 10, 25, 50, and 100 year critical time series I either overwrite the values for the non-critical events or create additional time series that are used in both rain gages and therefore defeats the purpose of two different rain gages.