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### Problem running 3DVAR tutorial

Posted: Tue Mar 08, 2011 9:41 pm
Hello,

I'm working through the WRFDA 3dvar tutorial with WRFDA3.2-testdata.tar.gz and WRFDAV3.2.1.tar.gz

I am at the stage of running the da_wrfvar.exe in serial mode and had the following wrfda.log:

[snipped coz similar to what is shown in tutorial]

Scaling: var, len, ds: 0.100000E+01 0.100000E+01 0.600000E+05
Scaling: var, len, ds: 0.100000E+01 0.100000E+01 0.600000E+05
Scaling: var, len, ds: 0.100000E+01 0.100000E+01 0.600000E+05
Scaling: var, len, ds: 0.100000E+01 0.100000E+01 0.600000E+05
Scaling: var, len, ds: 0.100000E+01 0.100000E+01 0.600000E+05
Calculate innovation vector(iv)

Minimize cost function using CG method

Starting outer iteration : 1
Starting cost function: NaN, Gradient= NaN
For this outer iteration gradient target is: NaN
----------------------------------------------------------
1 NaN NaN 0.00000000D+00
2 NaN NaN 0.00000000D+00
3 NaN NaN 0.00000000D+00
4 NaN NaN 0.00000000D+00
5 NaN NaN 0.00000000D+00
6 NaN NaN 0.00000000D+00
7 NaN NaN 0.00000000D+00
8 NaN NaN 0.00000000D+00
9 NaN NaN 0.00000000D+00
[snipped more of the same]
200 NaN NaN 0.00000000D+00
----------------------------------------------------------

Inner iteration stopped after 200 iterations

Final: 200 iter, J= NaN, g= NaN
----------------------------------------------------------

Diagnostics
Final cost function J = NaN

Total number of obs. = 38686
Final value of J = NaN
Final value of Jo = NaN
Final value of Jb = NaN
Final value of Jc = 0.00000
Final value of Je = 0.00000
Final value of Jp = 0.00000
STOP wrf_abort
---------------------------- WARNING --------------------------
WARNING FROM FILE: <A HREF="http://www.mmm.ucar.edu/people/wrfhelp/wrfvar/code/
---------------------------------------------------------------
---------------------------- FATAL ERROR -----------------------
----------------------------------------------------------------
Final J / total num_obs = NaN
Jb factor used(1) = 1.00000 1.00000 1.00000
1.00000 1.00000
1.00000 1.00000 1.00000 1.00000 1.00000
Jb factor used(2) = 1.00000 1.00000 1.00000
1.00000 1.00000
1.00000 1.00000 1.00000 1.00000 1.00000
Jb factor used(3) = 1.00000 1.00000 1.00000
1.00000 1.00000
1.00000 1.00000 1.00000 1.00000 1.00000
Jb factor used(4) = 1.00000 1.00000 1.00000
1.00000 1.00000
1.00000 1.00000 1.00000 1.00000 1.00000
Jb factor used(5) = 1.00000 1.00000 1.00000
1.00000 1.00000
1.00000 1.00000 1.00000 1.00000 1.00000
Jb factor used = 1.00000
Jb factor used = 1.00000
Je factor used = 1.00000
VarBC factor used = 1.00000