[Wrf-users] Error ( WOULD GO OFF TOP) using observation nudging

[Eduardo Penabad Ramos]

Hello!

I'm starting to test observation nudging capabilities of WRF-ARW (WRF3.0 
version). I am trying running a 3 nested grids setup, and trying to 
nudge observations into the finer grid (d03).

When observation nudging is turned on, it starts to produce this kind of 
errors...

Timing for main: time 2009-05-28_13:44:14 on domain   3:    0.60050 
elapsed seconds.
  WOULD GO OFF TOP: KF_ETA_PARA I,J,DPTHMX,DPMIN          53          27 NaN
           5000.000

Below there is a copy of &fdda namelist:

&fdda
obs_nudge_opt = 0,0,1,
max_obs = 150000,
fdda_start = 0., 0., 0.,
fdda_end = 99999., 99999., 99999.,
obs_nudge_wind = 0,0,0,0,0
obs_coef_wind = 6.E-4,6.E-4,6.E-4,
obs_nudge_temp = 1,1,1,
obs_coef_temp = 6.E-4,6.E-4,6.E-4,
obs_nudge_mois = 1,1,1,
obs_coef_mois = 6.E-4,6.E-4,6.E-4,
obs_rinxy = 50.,50.,50.,
obs_rinsig = 0.1,
obs_twindo = 0.666667, 0.666667, 0.666667, ! (in hours)
obs_npfi = 10,
obs_ionf = 2, 2, 2,
obs_idynin = 0,
obs_dtramp = 10.,
obs_nobs_prt = 10, 10, 10,
obs_ipf_errob = .true.
obs_ipf_nudob = .true.
obs_ipf_in4dob = .true.
obs_ipf_init = .true.
 /

Any suggestions on this issue? Thanks in advance!