Redundant code
From UKCA
This page is a starting point for discussion on code which is not being used and can be considered for removal. At this stage no decisions about any of these pieces of code have been made but in time it will become a place to record when things are planned to be deleted and then when they are deleted.
Table of code proposed for deletion
Status should be "proposed" until agreed for deletion at a code management group meeting. However, you are encouraged to open a ticket with the milestone set to 'HOPEFULLY' as soon as you propose something here. If the proposal is rejected the ticket can be closed. Code that exists but it no longer used can be set to depreciated.
NOTE: ALL GLOMAP CHANGES SHOULD BE DISCUSSED WITH LEEDS BEFORE PROCEEDING
| # | Description | Ticket | Remarks | Status | Timeframe | Owner | |
|---|---|---|---|---|---|---|---|
| 1 | Old emissions code (that which uses ancil files) | UM:#142 | None | Complete | Nick Savage | ||
| 2 | Old dry deposition scheme | UM:#2356 | None | PROPOSED | Medium-term | Nick Savage | |
| 3 | ukca_volume_mode.F90 - quick method for calculating wet volume is not used since iwvolmethod is hard coded to equal 2. | #2373 | None | Complete | Alan J Hewitt | ||
| 4 | ukca_strat_update.F90 - relax_ozone | UM:#1505 | None | PROPOSED | Medium-term | Luke Abraham | |
| 5 | Backward Euler Standard Tropospheric Chemistry | UM:#1507 | None | PROPOSED | Medium-term | Fiona O'Connor | |
| 6 | Wet oxidation of SO2 in GLOMAP | None | None | PROPOSED | Medium-term | Colin Johnson | |
| 7 | Updraft velocity | UM:#3668 | Proposed in December 2017 | PROPOSED | Medium-term | Alan J Hewitt | |
| 8 | All backward Euler chemistry schemes | None | Note that this is only for the “hard-coded” BE schemes. Quite a lot of work would be involved, but good as a longer-term aim. Note that problems for AQUM would need to be addressed first. | PROPOSED | Long-term | Luke Abraham | |
| 9 | Deprecated UKCA netcdf attribute options | UM:#2513 | 'emission_type', string type attributes no longer recommeneded. Need some time for most new code to adopt these. Still used in AQUM files. | DEPRECATED | Long-term | Nick Savage | |
| 10 | ASAD families chemistry | None | Families chemistry has not been used for many years (since at least UM6.1. It is likely that it no longer works if turned on, and it complicates the code making other developments harder | DEPRECATED | Short-term | Luke Abraham | |
| 11 | Dry deposition 9 PFT option | None | The 13 PFT option has been adopted for UKESM1. The 9 PFT option is possibly not being used at all. Proposed in June 2018. |
PROPOSED | Long-term | Alan J Hewitt | |
| 12 | Remove explicit C_SPECIES constants and calculate these from M_SPECIES and the mass of air |
None | Will have wide-ranging rose-stem KGO breakages | PROPOSED | Short-term | Luke Abraham | |
| 13 | Remove temporary logical l_fix_nacl_density Introduced at UM:#2405 |
UM:#3490 | Requires AMIP testing an a GMED ticket Could be accepted to GA9 |
PROPOSED | Medium-term | None | |
| 14 | Remove temporary logical l_fix_nh4no3_equilibrium Introduced at UM:#646 |
None | Requires AMIP testing an a GMED ticket Could be accepted to GA9 |
PROPOSED | Medium-term | None | |
| 15 | Remove temporary logical l_fix_ukca_impscav Introduced at UM:#1421 |
UM:#4145 | Approval being sought for GA series (likely GA9) GMED:#402 |
PROPOSED | Medium-term | None |
