Hydrological and geomorphological modeling is best made inside the coherency of a spatially enabled framework. This is the idea that drove the C.U.D.A.M.1 of the University of Trento and HydroloGIS2 in the development of the GIS (Geographic Information System) JGrass3 and its toolkits.
The JGrass team hosted the January 2009 OpenMI Association Technical Committee meeting at the University of Trento in Italy. Since 2007 JGrass implements in all its models and tools the OpenMI interfaces. A Console Engine (The JGrass Console4) has been developed to link together models the OpenMI way through a scripting language (Groovy or Beanshell, at the moment) that is then translated into OpenMI's linkable language for execution. This is a powerful tool that can be used by the scientific community to quickly create complex applications. Apart from the Horton Machine toolkit that contains more than 40 geomorphological and hydrological modules, users can find in JGrass a semi-distributed hydrological model for peak-flow analysis, and the Shalstab hillslope stability model. Besides, a full hydrological model is being implemented for the management of water resources, and river basins. The model is currently being tested on part of the second river of Italy, the Adige, financed by the Adige river basin authority. In another project, also the distributed hydrological model GEOtop4, is being ported to the system.
JGrass and all its models are released under the LGPL and GPL Free and Open Source license, and are freely downloadable at the project's homepage.
Actually, for its modeling purposes, the JGrass team extended the version of the 1.4 OPENMI development toolkit to include in memory the data types supported by the GIS community. These were taken from the GeoAPI project, that in these days is being proposed by Geomatys5 to the current OGC6 (Open Geospatial Consortium) meeting, as reference implementation for the OGC standards.
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