PREGRID
General description
Pregrid is not a single program, but rather a suite of programs to read
from various sources of gridded data in various formats, and write the
data out again in a simple, specified format. The primary purpose
of this suite of programs is to prepare gridded analyses for horizontal
interpolation to an MM5 model grid by program regridder.
Separate pregrid programs have been written for a number of data
sources. In addition, many data sets in the GRIB format may be processed
by the program in the "grib.misc" directory. Some data sets in GRIB
format may be handled more easily by a separate program, rather than by
trying to make the grib.misc code handle everything. If users want
to import code from some other data source or in some other data format,
they will need to create their own pregrid program, which simply
reformats the data to be read by regridder. There currently
exists a stand-alone shell for running pregrid alone (without regridder).
A single shell for running both pregrid and regridder may
be available sometime in the future.
The "pregrid" directory
The pregrid directory has the following files and subdirectories:
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Doc: Some documentation files.
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Makefile: Makefile for building executables.
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era: Tables needed to run the Ecmwf Reanalysis dataset.
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grib.misc: Fortran code to run many GRIB datasets.
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navysst: Program and table needed for Navy SSTs
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ncep.grib: Program and tables needed for NCEP GDAS archives in GRIB.
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nnrp: Tables needed to access NCAR/NCEP Reanalysis project archives.
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on84: Program and Tables needed to access old NCEP GDAS archives
in ON84 format.
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pregrid.csh: C-shell script used to run pregrid locally or
interactively.
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util: Fortran and c code for many functions common to many of the data
access programs
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Last modified: Thu Aug 31 11:27:21 MDT 2000