Introduction

The -ftime option calls either -ftime1 or -ftime2 options. The -ftime2 option is newer and will become the default in newer versions of wgrib2. The -ftime2 option fixes some problems in describing climatologies of monthly means (averages of averages) or any nested statistical processing operators. The -ftime2 option is fully recursize while the older -ftime1 attempted and failed to bypass the recursion.

Along with the change to -ftime2, the The -set_ftime, -set_ave options are being replaced by -set_ftime2.

Usage

-ftime2

Example

$ wgrib2 grib2.polar -ftime2
1.1:0:24 hour fcst
1.2:0:24 hour fcst