The efforts and innovative spirit of INCLAM and the University of Zaragoza materialised in 2004 through the first Guad2D version, which was created as a direct response to the convergence issues detected in other similar tools, to be applied in many Spanish hydraulic basins. 
Since then, Guad2d —under continuous development— has been updated with enhanced calculation times (parallelisation) and new features were added, such as triangular mesh calculation, bridge and covered section calculation, solute calculation, rain incorporation, etc.
Tested with real event simulations and examples monitored in fluid mechanics laboratories, Guad 2D offers a friendly and intuitive interface that allows any user with minimum knowledge on hydraulics to perform two-dimensional hydraulic simulations.
GuadCreator is the step prior to Guad|2d, whereby users may prepare simulation data for its subsequent numerical calculation. GuadCreator is a free module used to create simulations (which may be simultaneous) based on ground grids with standard formats for GIS.
Guad|2d is the mathematical module that simulates finite volumes through numerical algorithms, thus allowing to obtain actual results in supercritical, subcritical or mixed stationary flow conditions.
The third module, GuadView, which contains GIS capacities, enables the analysis of calculation results. It allows visualising raster and vector layers and orthophotos, along with simulation results, in order to identify floodable areas.
Based on the simulation obtained with Guad|2d, it is able to represent level, depth and speed charts to be visualised and thus analyse data from each simulation cell. It also allows obtaining level probes, sections or hydrographs at any point or section of the floodable area.
Those results may be exported to ASCII format supported by any GIS software generally used for engineering purposes (ArcGis, MapInfo, Miramon, MapWinGis, GVSig, etc.)
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