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Ben, The netCDF library can be used to do everything that you want PROVIDING that you can create and adhere to a convention for specifying irregular, time-varying, simulation meshes. You might try posting to the netCDF mailing-list to see if someone has developed such a convention. Regards, Steve Emmerson <http://www.unidata.ucar.edu> > To: address@hidden > From: "Byung S. Lee" <address@hidden> > Subject: questions > Organization: University of Vermont > Keywords: 200104242111.f3OLAxL10825 > > Hello, > > Would you please answer the following questions? > > Can NetCDF used to store and manipulate: > > 1. Spatially irregular simulation mesh data? > 2. Temporarily irregular simulation mesh data? > 3. Time-varying simulation mesh data? > > Are field variables defined on: > 1. mesh nodes (vertex) > 2. mesh edges > 3. mesh faces > 4. mesh volumes (zones in a 3-D mesh) > > Please let me know if my questions are unclear. I would appreciate your > prompt replies. > > Thank you. > Ben.