apply_mask.txt This is a program/procedure that I used to mask out "questionable" data. This is an example of a practical use of gribw. How to applies a mask to a GRIB file (1) Decode GRIB file along with header file wgrib -PDS10 -GDS10 oldgrib -d all -o oldbin >header (2) Make a file with just the dates cut -f3 -d:
dates (3) Fortran program (apply_mask.f) that reads (a) oldbin (b) dates (c) mask and writes (a) newbin (4) gribw -i newbin -o newgrib