So I wrote at earlier that I didn’t get ArcHydro. I get it now.
I spent the better part of the weekend reading documentation and reading implementation articles (Thank you Saint Johns Water Mangement District). ArcHydro Makes sense now. I think….actually know that’s what I was missing – the practicality of the whole thing. Of course after reading several articles it would help to be a hydrologist – I guess that one class in College will have to do…..now if I only could find my hydrology book.
So I started today pouring through the NHD Dataset. Now that I understand the NHD I can start building the ArcHydro model for the Conasauga River Alliance. I’m thinking about doing a smaller area first before attempting the entire watershed. I lucked out in that there was 10 meter DEM data for the area as well as 1:24k NHD data. ArcHydro 1.2 works with ArcGIS 9.3 -well actually works as far as I know. I may hit a snag in the next day, but so far so good. I heard that ArcHydro 1.3 was under development/Beta – hopefully it will be out soon.
With any luck this can help or at least play a part in the Fecal Coliform/Septic tank cleanup that they are currently undertaking.