tREADME.md - pism - [fork] customized build of PISM, the parallel ice sheet model (tillflux branch)
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tREADME.md (1047B)
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1 Ross ice shelf model (diagnostic validation mode)
2 =================
3
4 This example is documented in subsection 12.2 of the PISM User's Manual as an
5 example of using observed velocities to validate PISM's model for the flow in
6 ice shelves.
7
8 This example is a regional model of an ice shelf using observed, fixed geometry
9 and observed velocities as boundary conditions. PISM does a `-y 0` (zero
10 duration) diagostic run; see subsection 5.5 of the User's Manual. A python plot
11 script can compare observed and numerical velocities in the interior of the ice
12 shelf once the run completes.
13
14 To do the example, run `preprocess.py` in the parent directory, and then do the
15 following in the current directory:
16
17 $ ./run_diag.sh 2 211 0.6
18
19 At this resolution the run takes only a few seconds. To compare to
20 observations, and generate figures like those in the User's Manual, do
21
22 $ ../plot.py diag_Mx211.nc
23
24 Note `run_diag.sh` accepts three arguments: `run_diag.sh N Mx E` does a run with
25 `N` MPI processes, a `Mx`x`Mx` grid, and option `-ssa_e E`.
26