Possible Projects

Feel free to add things below...

Or even better: Briefly summarize here, and then link to an issue in some Clawpack repository, creating a new one if necessary (e.g. in geoclaw/issues or another repository such as visclaw if that's more relevant). Having it as an issue makes it easier for other to join the discussion about it, and makes sure it doesn't get lost after the worshop ends.

Possible topics for the hackathon:

• Add sediment transport to D-Claw (and GeoClaw?)

• More general approach for defining arrival time in Geoclaw (e.g., based on velocity rather than altitude, or similar). Dave has a branch already. There are some tricky details for lahars into lakes.

• Add precipitation as a standard feature in GeoClaw and D-Claw (Katy)

  • Create a general 'dq' feature, similar to dtopo that allows within-simulation changes to q. This could be used for adding precipitation, among other things.
  • Update the standard D-Claw variables to include a storage layer for water thinner than drytol (see photo of notes on Katy's whiteboard).

• Consider putting somethings Dave has developed into geoclaw python libraries (or digger, or elsewhere) (Katy, Dave)

  • regions to GIS files
  • FGMax to geotif or netcdf

• PyVista/GeoVista visualization tools in 3D, see visclaw/issues/311 and some more recent examples with structures and debris tracking.

• Add more examples to geoclaw/examples, e.g.

  • Periodic in longitude on sphere
  • Illustrating restart capabilities
  • More complete example of realistic tsunami from source to inundation

• Adopt xarray and rioxarray more heavily, and/or adopt pooch for fetching remote data files.

• Shallow water on the cubed sphere with source terms - problems with ghost cell interpolation at cubed sphere patch boundaries (Donna)

• Discussion of coupling features in ForestClaw. Possible avenue to coupling GeoClaw with other applications? (Donna)

• Serre-Green-Nagdi (SGN) solver (Donna)

• Discuss eventual SGN+D-Claw code

• Create brief addition to documentation that describes the typical file structure of an application directory (Katy).

• Creating a new Docker image(s) for Clawpack/GeoClaw, in particular one with PETSc installed (work on Friday with Jed).

• The GeoClaw BMI developed here for the National Water Model, and possible applications for connecting GeoClaw to other models.

  See also this paper: E. Hamidi et al., Coupling Coastal and Hydrologic Models through Next Generation National Water Model Framework. J. Hydrol. Eng. 30, (2024). https://doi.org/10.1061/JHYEFF.HEENG-6343

General housekeeping things we could tackle:

• Fix regression testing using pytest, add more regression tests
• Are flagregions checked based on cell centers or edges? (Causes problems in regression testing)
• Test if GeoClaw works with more than 2 ghost cells?
• Think about ways to make num_eqn aka nvar aka meqn a constant value instead of variable using iso-c bindings. Test if this speeds up the code.
• Speed up limiters using a "merge" command.

Requests from users or developers who can't attend...

• ???