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Bug #627

difference between netcdf and hdf met fileds

Added by Philippe Le Sager almost 3 years ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
Start date:
07/04/2016
Due date:
% Done:

0%


Description

1-month simulations driven by netcdf and hdf met fields give different results. Here's a summary about the difference in the final restart:

compare files: 
  /scratch/ms/nl/nm6/TM5/chem_trunk_cb05_m7_nc/rundir/restart/TM5_restart_20060201_0000_glb300x200.nc
  /scratch/ms/nl/nm6/TM5/chem_trunk_cb05_m7_hdf/rundir/restart/TM5_restart_20060201_0000_glb300x200.nc
  check sp ...
  check at ...
  check bt ...
  check ph ...
  check m ...
  check names ...
  check rm ...
      23095388 (out of 23500800) differences found in rm
      max diff. in : [115, 39, 23, 33] (rel.diff. 48.637811 %)
      where field #1 = 5.2092239847436974e+25
      where field #2 = 2.6755714880891763e+25
  check rxm ...
      23095393 (out of 23500800) differences found in rxm
      max diff. in : [115, 39, 23, 33] (rel.diff. -62.511061 %)
      where field #1 = -2.9756669993977323e+25
      where field #2 = -1.1155459937382089e+25
  check rym ...
      22829988 (out of 23500800) differences found in rym
      max diff. in : [115, 39, 23, 33] (rel.diff. -47.298237 %)
      where field #1 = -1.7497517860268294e+25
      where field #2 = -9.2215004129023556e+24
  check rzm ...
      23094682 (out of 23500800) differences found in rzm
      max diff. in : [115, 42, 24, 33] (rel.diff. -49.834390 %)
      where field #1 = -8.2997740677406466e+24
      where field #2 = -4.1636322993237999e+24
  check rmc ...
      6543562 (out of 6976800) differences found in rmc
      max diff. in : [61, 43, 10, 11] (rel.diff. 71.479414 %)
      where field #1 = 3250589.5594803258
      where field #2 = 927087.20510421193
  check h2o ...
      1012398 (out of 1468800) differences found in h2o
      max diff. in : [102, 32, 4, 4] (rel.diff. 73.178703 %)
      where field #1 = 2841898.6537467106
      where field #2 = 762234.08398062852
  check rwd ...
      1305959 (out of 1468800) differences found in rwd
      max diff. in : [81, 8, 5, 4] (rel.diff. 170.077358 %)
      where field #1 = 2.9692549708053316e-07
      where field #2 = 8.0192853888550918e-07
  check rw ...
      2488907 (out of 2570400) differences found in rw
      max diff. in : [69, 39, 1, 4] (rel.diff. 49.294529 %)
      where field #1 = 2.815104655416066e-06
      where field #2 = 1.427412075740052e-06

  FAILED - hdf vs. nc

The production of netcdf met fields from the original grib files from the MARS archive seems to be the problem.

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