Initialization and bootstrapping¶
There are three ways to start PISM:
option
-i
reads a previously-saved “complete” PISM model state in a NetCDF file, oroption
-i
-bootstrap
reads an “incomplete” NetCDF file and uses heuristics to fill in needed fields, orone of the executables
pisms
orpismv
is used to initialize simplified-geometry experiments or verification tests from formulas in the source code, and thus no input file is required.
One of the first two choices is required when using the executable pismr
. Modeling
usually starts with the -i input.nc -bootstrap
option because real ice sheet
observations are never complete initial conditions. Runs with multiple stages often use
the -i
option after the first stage.
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