The WMS developers have worked closely with hydrologists from the Maricopa County Flood Control District to automate some of the GIS operations done there in support of the HEC-1 model. These options include:
Inclusion of the Maricopa Country time of concentration equation in the list of available equations
Ability to create unit hydrographs from S-graphs used as standards in the area
Automatic calculation of average precipitation and rainfall distribution based on rainfall grid
