Open whlipscomb opened 3 months ago
Note 1: When merging this branch, attention needs to be paid to not reverse the configuration modification in the test directory during PR#61 (such as powerlaw_c -> powerlaw_c_const).
Note2: When running the test cases MISMIP+, MISMIP3d, ismip-hom, and slab, results were BFB for thickness, masks,... but not for velocity fields (although the difference was on the order of 1e-11). In MISMIP+, MISMIP3d the differences span a few grid cells while it was field-wide for the slab test.
This is the branch used to develop a glacier modeling scheme. This code was used for the runs we submitted to GlacierMIP3 for the European Alps. The glacier scheme will be described in full in a paper in prep by Minallah, Lipscomb, and Leguy. Briefly:
Much of the new code is in the new module glissade_glaciers.F90. There are some new glacier fields (some 1D, others 2D) in glide_vars.def, and there is a new 'glaciers' section of the config file.
There is a new restart option 2: "hybrid restart". For this kind of restart, CISM initializes itself using the restart file from a previous run, but with a new start and end date specified in the config file.
There are some new I/O capabilities. For example, it is possible to read in all the input climate data (e.g., monthly data for 20 different years, a total of 240 time slices) once at initialization and store the data for repeated application during the run (rather than read in the same monthly data multiple times).
Glacier-related diagnostics (e.g., total glacier area and volume in the region) are written to the log file along with the standard diagnostics.