Opened 14 years ago
Last modified 13 years ago
#228 closed defect
Inconsistent precision in MSIS_coeff.nc file — at Initial version
| Reported by: | Ian Culverwell | Owned by: | |
|---|---|---|---|
| Priority: | normal | Milestone: | 5.0 |
| Component: | ropp_pp | Version: | 4.1 |
| Keywords: | MSIS | Cc: |
Description
Kjartan Kinch (DMI) discovered that these coefficients are being held at different precision in OCC (8 decimal places, from ascii file) and ROPP (read in from ascii file as single precision, then promoted to double precision before being written out to netCDF file).
By reading them in as DP in ropp_pp/msis_bangle/MSIS_ascii2netcdf.pro we obtain a netcdf file at equivalent precision.
ba_Ac0(1, 1, 1) from ropp_pp/data/dabcs01.asc:
0.32796969E+02
ba_Ac0(1, 1, 1) from original ropp_pp/data/MSIS_coeff.nc:
3.27969703674316406250e+01
ba_Ac0(1, 1, 1) from final ropp_pp/data/MSIS_coeff.nc:
3.27969689999999971519e+01
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