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Soil Freeze-thaw Model

The soil freeze-thaw model simulates the transport of heat in soil using a one-dimensional vertical column. The model uses a standard diffusion equation discretized using a fully-implicit scheme at the interior and a semi-implicit scheme at the top and bottom boundaries, similar to NOAH-MP. More details are provided below.

Build and Run Instructions

Detailed instructions on how to build and run the SoilFreezeThaw (SFT) model can be found in the INSTALL guide.

• Test examples highlights
  • Unittest (see tests)
  • Synthetic example (standalone mode): simulations with prescribed soil moisture profiles (static input) (see build/run)
  • Real field example (pseudo framework mode): simulations with real forcing data (see build/run)
  • Examples (nextgen framework mode):
    • Synthetic example: Identical to the above Synthetic example but runs in the nextgen framework.
    • Real field example: Identical to the above Real field example but runs in the nextgen framework.
    • Real field example: Two nextgen realization examples coupling 1) SFT with CFE and 2) SFT with LASAM running on a catchment in HUC01 region are also provided in examples directory. Build and run instructions are given at build and run, respectively.

Model Configuration File

A detailed description of the parameters for model configuration is provided here.

Getting help

For questions, please contact Ahmad Jan (ahmad.jan(at)noaa.gov), the main developer/maintainer of the repository.

Known issues or raise an issue

We are constantly looking to improve the model and/or fix bugs as they arise. Please see the Git Issues for known issues or if you want to suggest adding a capability or to report a bug, please open an issue.

Getting involved

See general instructions to contribute to the model development (instructions) or simply fork the repository and submit a pull request.