wgrib2: -start_ft, -start_FT, -end_ft, -end_FT
Introduction
Suppose you make a forecast starting from initial conditions of 00Z January 1 for the average
conditions from the month of February. In this forecast, there are three time stamps.
Name date YYYYMMDDHH option (HH)Z(DD)(MON)YYYY option with minutes and seconds
reference time 00Z Jan 1 -t -v2 -t -T
start of forecast period 00Z Feb 1 -start_ft -v2 -start_ft -start_FT
end of forecast period 00Z Mar 1 -end_ft -v2 -end_ft -end_FT
For common ftimes,
analysis: reference time == start_ft == end_ft
6 hour forecast: reference time + 6 == start_ft == end_ft
30 year monthly climatology: reference time = start_ft = start of 1st month used to make climatology
end_ft = end of the last month used to make the climatology
Usage
-start_ft
-end_ft
-start_FT
-end_FT
Example
$ wgrib2 a.grb -start_ft
1:0:start_FT=20111101000000
See also:
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