Hello all, I am trying to model a potential spill in a creek from an underwater pipeline using ESRI ArcGIS 10 and Arc Hydro 10. I currently have LiDAR data for the area, the stream polyline, flow rate, shore type, shore width, and substance thickness. What other datasets do I need in order to model this using Arc Hydro 10 tools? What are the steps involved? Any help with this is appreciated! Thanks, Tenzin
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