Water Resources of the United States
(Sept 2010) SUTRA Version 2.2 offers new features for input and output of time-dependent boundary conditions
The newly released SUTRA Version 2.2 allows specification of time-dependent boundary conditions using one or more optional ".bcs" input files. (Previous versions of SUTRA required time-dependent boundary conditions to be implemented by programming subroutine BCTIME.) In addition, the new version offers a new set of optional output files that summarize specifications and computed results at boundary condition nodes.
(June 2008) SUTRA Version 2.1 allows irregular 3D meshes and greater control over time stepping and observation output
The newly released SUTRA Version 2.1 allows irregular meshes for both 2D and 3D simulations. (The previous version of SUTRA allowed only irregular meshes only for 2D simulations.) In addition, the new version offers greater control over time stepping and the timing of observation output through user-defined "schedules"; interpolation of observations in space and time to facilitate model calibration; an alternative observation output format; "insertion" of input data from separate files; and automatic assignment of Fortran unit numbers to input and output files.
(Oct 2003) SUTRA Version 2D3D.1 allows fully 3D simulation
The newly released SUTRA Version 2D3D.1 provides both 2D and fully 3D simulation of saturated-unsaturated, variable-density ground-water flow and solute or energy transport. (Previous versions of SUTRA allowed only 2D simulation.) In addition, the new version includes iterative matrix solvers, more flexible input/output data formats, improved error reporting, and improved budget reports. SUTRA 2D3D.1 and its pre- and post-processing utilities are known collectively as SutraSuite.
(Oct 2003) New pre- and post-processing utilities for SUTRA
The latest release of SUTRA, Version 2D3D.1, is supported by a collection of pre- and post-processing utilities that facilitate preparation of input datasets and analysis of results:
All the utilities listed above are Windows-based, except SutraPrep, which is text-based and can be compiled on any platform that has a standard FORTRAN 90 compiler. SUTRA 2D3D.1 and its utilities are known collectively as SutraSuite.