Hydro-GIS Ltd has extensive experience in the use of GIS going back over 25 years to the 1990’s when such software was only used as a research tool at universities or research institutes. We have used GIS for a wide range of projects from simple local mapping of flood risk such as plotting the results of a topographic survey, through to developing models within GIS software to map the extent of flooding, using satellite imagery to identify landforms or land use, using hydrological modelling functions to define drainage networks and catchment areas, and providing GIS as a data handling and storage facility for compiling national inventories.