Initial tests 22 for the GCR (unbalanced variable)

• RHS anti-PV is raw data (does not include extra f factor).
• PV=0 transform is grid only.
• The first guess unbalanced pressure is zero.
• Diagonal preconditioning.
• 500 iterations (restart 5).
• Mass weighted inner product for GCR coefficients.
• Data location /export/custard/disk-01/ross/PV_Results/GCR_Test/antiPV/GridOnly_PreCon_500_no_f_Zero_Guess1/

• For each variable, horizontal (long/lat) and vertical (lat/eta) plots are shown.
• For the horizonal plots, the levels are "bottom level" = L1 (eta=0.00025), "lower level" = L11 (eta=0.056) and "upper level" = L30 (eta=0.445). There are 38 levels in total.
• For the vertical plots, the longitude slice is Greenwich meridian.
• Each field (except differences) is decomposed into large horiz/small vert (left) and small horiz/large vert (right) scales.
• The plots show the max, min, and mean (calculated by the plotter).
• Unbalanced pressure is also plotted as the difference between the 'solution' and the initial guess.
• Anti-PV is also plotted as differences: 'solution'-'RHS', 'initial'-'RHS' and 'solution'-'initial'.

1. Initial guess unbalanced pressure perturbation (ref: Ap_1)

2. Intial Anti-PV (ref: antiPV_Initial)

3. RHS Anti-PV (ref: antiPV_RHS)

4. The solution in terms of unbalanced pressure (ref: Ap_Solution)

5. The solution in terms of antiPV (ref: AntiPV_Solution)

6. Difference of anti-PV: Solution - RHS

7. Difference of anti-PV: Initial - RHS

8. Difference of anti-PV: Solution - Initial

9. Unbalanced streamfunction of the solution (zero PV)

The convergence (Error norm vs total iteration)