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WRFDA的namelist.obsproc中record1, record2 和record8参数

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发表于 2018-1-5 17:28:52 | 显示全部楼层 |阅读模式

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各位大神,请教一下大家有关WRFDA中namelist.obsproc参数设置问题。谢谢大家啦脚本中有关record1record2;和record8的说明如下

  1. &record1
  2. ;obs_gts_filename: name and path of decoded observation file
  3. ;fg_format       : 'MM5' for MM5 application, 'WRF' for WRF application
  4. ;obserr.txt      : name and path of observational error file
  5. ;<font color="#ff0000">first_guess_file: name and path of the first guess file, for MM5 application only</font>
  6. ;gts_from_mmm_archive:  set to .true. if decoded observation file is from
  7. ;                       NCAR/MMM hsi:/BRESCH/RT/DATA/ccyymm/obs.ccyymmddhh.gz
  8. /

  9. &record2
  10. ;time_window_min = '2007-01-01_23:00:00',: The earliest time edge as ccyy-mm-dd_hh:mn:ss
  11. ;time_analysis = '2007-01-02_00:00:00', : The analysis time as ccyy-mm-dd_hh:mn:ss
  12. ;time_window_max = '2007-01-02_11:00:00',: The latest time edge as ccyy-mm-dd_hh:mn:ss
  13. ; Only observations between
  14. ;       [time_window_min,time_window_max] will be kept.
  15. ;
  16. ; When no first guess as input file:
  17. ; time_window_min: Beginning of time window (included) as ccyy-mm-dd_hh:mn:ss
  18. ; time_window_max: End of time window (included) as ccyy-mm-dd_hh:mn:ss
  19. ; Only observations between [time_window_min, time_window_max] will be kept.
  20. /
  21. &record8
  22. ; For MM5 application, all these parameters, except IDD which is set by user,
  23. ;     can be found in MM5 TERRAIN namelist
  24. ; For WRF application, these parameters can be found from WRFSI namelist
  25. ;     file: wrfsi.nl (see note below).
  26. ;
  27. ; IDD:    Domain ID (1=< ID =< MAXNES), Only the observations
  28. ;         geographically located on that domain will be processed.
  29. ;         For WRF application with XLONC /= STANDARD_LON, set IDD=2,
  30. ;         otherwise set 1.
  31. ; MAXNES: Maximum numbe of domains as needed.
  32. ; NESTIX: The I(y)-direction dimension for each of the domains
  33. ; NESTJX: The J(x)-direction dimension for each of the domains
  34. ; DIS:    The grid size for each of the domains
  35. ;         <font color="#ff0000">For WRF application, always set NESTIX(1),NESTJX(1), and DIS(1)</font>
  36. ;         <font color="#ff0000">based on the infomation in wrfinput.</font>
  37. ; NUMC:   The mother domain ID number for each of the domains
  38. ; NESTI:  The I location in its mother domain of the nest domain's low left
  39. ;          corner -- point (1,1)
  40. ; NESTI:  The J location in its mother domain of the nest domain's low left
  41. ;         corner -- point (1,1)
  42. ;         For WRF application, NUMC(1), NESTI(1), and NESTJ(1) are always set
  43. ;         to be 1.
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请问,
(1)record1中,如果我用的WRF(而不是MM5),这里first_guess_file就不用写了吗?但是在record8中,却写着要根据为wrfinput来确定NESTIX(1),NESTJX(1), and DIS(1),这是不是有些矛盾?
(2)record1中,如果同化的是地面监测站的监测数据,这里是不是应该设置为false.
(3)record2中,这里的time_window_mintime_window_max该如何设置与time_analysis的间隔呢?随意设置吗?间隔1小时,2小时,3小时?均可以?还是要根据获得的同化数据的时间间隔设置?
例如:如果我获得的监测数据是间隔1小时的,这里的time_window_min(time_window_max)time_analysis的时间间隔就为1小时?
(4)record8中, 如果设置了MAXNES=2或者3,就把按照wrf的的namelist设置下面的参数(NESTIX.......NESTJ )相应的前2列或3列的数值就可以吧?




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