#47 closed enhancement (fixed)
Request for Levelling
| Reported by: | Dave Offiler | Owned by: | Dave Offiler |
|---|---|---|---|
| Priority: | normal | Milestone: | 2.0 |
| Component: | ropp_io | Version: | 0.8 |
| Keywords: | Thinning, Levelling, BUFR | Cc: | dave.offiler@…, carlo.buontempo@…, axel.vonengeln@… |
Description
Form data collected from this request:
Title = Dr FirstName = Sean Surname = Healy email = sean.healy@… Institute = ecmwf deliverable = other Description = ROPP user request.
I would like to see an enhancement to SUBROUTINE ConvertROPPtoBUFR in the ropp2bufr.f90 code. It would be useful for a user to be able to:
1 define & read in a set of impact heights 2 interpolate the hi-res bending angles to these impact heights 3 have the data on these heights converted to BUFR.
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Change history (5)
comment:1 by , 19 years ago
| Status: | new → assigned |
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comment:2 by , 19 years ago
| Cc: | added; removed |
|---|---|
| Milestone: | → 2.0 |
| Type: | defect → enhancement |
| Version: | 2.0 |
comment:3 by , 18 years ago
| Resolution: | → fixed |
|---|---|
| Status: | assigned → closed |
| Version: | → 0.8 |
Request closed by implementing a profile thinning algorithm in ropp_io - Sovitsky-Golay pre-smoothing (optional) followed by logarithmic or linear interplolation to a fixed number of impact heights (247 in provided control file). See ropp_io_thin.f90 & related routines.
Released in beta as ropp_io v0.9-1 and tidied up and improved for V1.0
Other options might be added for future releases, as new Tickets.
comment:5 by , 16 years ago
| Milestone: | → 2.0 |
|---|
This request follows a number of emails between ECMWF, GFZ, EUMETSAT, DMI & METO and clarification of requirements for 'thinning' for BUFR products. Technical details are available to the ROPP Development Team for potential implementation in ROPP.
Suggest implementation be as a subroutine in the ropp_io (or ropp_pp ?) library, to be called by the noted subroutine within the BUFR encoder in place of the current place-holder code which does a crude thinning by simple sampling for ROPP-1.
Thinning by a more appropriate algorithms (of which one candidate is as requested by this ticket) was planned for ROPP-2 but this method ('Levelling') should be considered for an earlier implementation.