[Wrf-users] help:rrtm :TBOUND exceeds table limit

[Eric Altshuler]

It appears that you have two distinct problems. The model is aborting because of a problem with MPI task communication:

ERROR: 0032-171 Communication subsystem error:  2660-421 Destination task is purged. in MPI_Isend, task 6.

TSFC is the skin temperature (TSK) which varies with time. The initial values of TSK will not remain constant, so it is possible that TSK > 340 at some future time even if the initial TSK < 340 everywhere. In my experience, it is normal for TSK > 340 at some grid points in hot desert regions in summer, but a value of 351.735 is very high.

You should use the same value of radt on all domains. You have:

radt                                = 27,    9,     3,

Depending on your horizontal resolution, you should set all radt values to 27, 9 or 3. I would suggest:

radt                                =  9,    9,     9,

Best regards,

Eric L. Altshuler
Assistant Research Scientist
Center for Ocean-Land-Atmosphere Studies
4041 Powder Mill Road, Suite 302
Calverton, MD 20705-3106
USA

E-mail: ela at cola.iges.org
Phone: (301) 902-1257
Fax: (301) 595-9793

----- Original Message -----
From: "xddscr" <xddscr at 163.com>
To: "wrfhelp" <wrf-users at ucar.edu>
Sent: Friday, June 26, 2009 3:28:36 AM GMT -05:00 US/Canada Eastern
Subject: [Wrf-users] help:rrtm :TBOUND exceeds table limit

   I am currently running WRF 3.0 with 3 domains .After I executed wrf.exe a while,the application aborted ,And I found the following message:
***Initializing nest domain # 3 from an input file.***
..
rrtm: TBOUND exceeds table limit: reset 351.735.
ERROR: 0032-171 Communication subsystem error:  2660-421 Destination task is purged. in MPI_Isend, task 6.
   In module module_ra_rrtm,I found that tbound is the surface temperature.and
 "TBOUND = TSFC
  IF(TBOUND .GT. 340.)THEN
  WRITE( errmess , '(A,F10.3)' ) 'rrtm: TBOUND exceeds table limit: reset ',TBOUND
  CALL wrf_message (errmess)
  TBOUND = 339.99
  ENDIF"
I use read_wrf_nc to read input file wrfinput_d03,the command is that:
  read_wrf_nc wrfinput_d03 -m
,then the result shows that the the Maximum of Tsk is 309.6010437 less than 340.
  The physical parameterization options of my namelist.input is listed below:
   +63   &physics
   +64   mp_physics                          = 2,     2,     2,
   +65   ra_lw_physics                       = 1,     1,     1,
   +66   ra_sw_physics                       = 1,     1,     1,
   +67   radt                                = 27,    9,     3,
   +68   sf_sfclay_physics                   = 2,     2,     2,
   +69   sf_surface_physics                  = 2,     2,     2,
   +70   bl_pbl_physics                      = 2,     2,     2,
   +71   bldt                                = 0,     0,     0,
   +72   cu_physics                          = 2,     2,     0,
   +73   cudt                                = 0,     0,     0,
   +74   isfflx                              = 1,
   +75   ifsnow                              = 0,
   +76   icloud                              = 1,
   +77   surface_input_source                = 1,
   +78   num_soil_layers                     = 4,
   +79   ucmcall                             = 0,0,1,
   +80   num_land_cat                        = 33
   +81   maxiens                             = 1,
   +82   maxens                              = 3,
   +83   maxens2                             = 3,
   +84   maxens3                             = 16,
   +85   ensdim                              = 144,
   +86   /
  Your suggestions would be greatly appreciated.

 
 
  
  
 
 
   



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