ncl advance time

Hello£¬ In WRFDA£¬ there is a program "advance_time.exe" for time cycle../advance_time.exe
Usage: advance_time ccyymmddhh[nnss] [+|-]dt[d|h|m|s] [-w|-W|-wrf|-WRF] [-f|-F date_format] [-j|-J] [-g|-G]
Option: -w|-W|-wrf|-WRF output in wrf date format as ccyy-mm-dd_hh:nn:ss
         -f|-F specify output date format, such as ccyy-mm-dd_hh:nn:ss, or 'ccyy/mm/dd hh:nn:ss'
         -j|-J print Julian day
         -g|-G print Gregorian days and seconds (since year 1601)
Example: advance_time 20070730 12 # advance 12 h
         advance_time 2007073012 -1d2h30m30s # back 1 day 2 hours 30 min and 30 sec
         advance_time 2007073012 1s-3h30m # back 3 hours 30 minutes less 1 second
         advance_time 200707301200 1d1s -w # advance 1 day 1 sec, output in wrf date format
         advance_time 2007-07-30_12:00:00 2d1s -w # same as previous example
         advance_time 200707301200 2d1s -f ccyy-mm-dd_hh:nn:ss # same as previous
         advance_time 2007073006 120 -j # advance 120 h, and print year and Julian day
         advance_time 2007073006 120 -J # advance 120 h, print year, Julian day, hour, minute and second
         advance_time 2007073006 0 -g # print Gregorian day and second (since year 1601) So, I want to know if there is a similar function in NCL, that is convenient for time series. Thanks for your help Ziqiang

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Received on Tue Nov 1 11:48:45 2011