Difference between revisions of "Bugfixes (new approach)"

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| 34 || ACTIVATE: Argument dimensions not compatible with ENDGame<br/> (should specify 1:model_levels) || Part of ''[http://fcm2/projects/UM/ticket/6105 #6105]'' || ''[https://puma.nerc.ac.uk/trac/UM/ticket/636 #636]'' || 8.5:<br/>EG-Activate || MetO: Included in <br/>'''fcm:um_br/dev/hadfo/vn8.6_ukca_bugfixes<br/>_package_for_GA7''' <br/> Puma: <br/>'''fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86''' || Lodged at vn9.0 || CLOSED || -
 
| 34 || ACTIVATE: Argument dimensions not compatible with ENDGame<br/> (should specify 1:model_levels) || Part of ''[http://fcm2/projects/UM/ticket/6105 #6105]'' || ''[https://puma.nerc.ac.uk/trac/UM/ticket/636 #636]'' || 8.5:<br/>EG-Activate || MetO: Included in <br/>'''fcm:um_br/dev/hadfo/vn8.6_ukca_bugfixes<br/>_package_for_GA7''' <br/> Puma: <br/>'''fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86''' || Lodged at vn9.0 || CLOSED || -
 
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| 35 || Error in labelling: Surface resistance <--> stomatal resistance ? || [http://fcm2/projects/UM/ticket/6417 #6417] <br/> ''[https://code.metoffice.gov.uk/trac/um/ticket/1409 UM:#1409]''<br/>'''[https://code.metoffice.gov.uk/trac/um/ticket/5751 um:#5751]''' || [https://puma.nerc.ac.uk/trac/UM/ticket/653 #653] || 7.3: || ''None'' || '''Will be folded into larger dry deposition work plan''' || '''OPEN''' || Fiona O'Connor / Garry Hayman
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| 35 || Error in labelling: Surface resistance <--> stomatal resistance ? || [http://fcm2/projects/UM/ticket/6417 #6417] <br/> ''[https://code.metoffice.gov.uk/trac/um/ticket/1409 UM:#1409]''<br/>'''[https://code.metoffice.gov.uk/trac/um/ticket/5751 um:#5751]'''<br/>'''[https://code.metoffice.gov.uk/trac/um/ticket/6885 um:6885]'''|| [https://puma.nerc.ac.uk/trac/UM/ticket/653 #653] || 7.3: || ''None'' || '''Will be folded into larger dry deposition work plan''' || CLOSED || Fiona O'Connor / Garry Hayman
 
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| 36 || Error in calculation of Column Ozone diagnostic || ''[https://code.metoffice.gov.uk/trac/um/ticket/102 UM:#102]'' <br/> ''[https://code.metoffice.gov.uk/trac/um/ticket/564 UM:#564]'' <br/>|| || 7.3: || MetO:<br/> '''fcm:um_br/dev/hadvh<br/>/vn8.2_coloz_fix''' <br/> Puma: <br/> '''fcm:um_br/dev/foconnor/<br/>vn8.2_coloz_fix''' || Lodged at vn10.1 as part of the <br/> UKCA bugfix package [https://code.metoffice.gov.uk/trac/um/browser/main/branches/dev/fionaoconnor/vn10.1_ukca_bugfix_package vn10.1_ukca_bugfix_package] under ticket [https://code.metoffice.gov.uk/trac/um/ticket/564 UM:#564] || CLOSED || -
 
| 36 || Error in calculation of Column Ozone diagnostic || ''[https://code.metoffice.gov.uk/trac/um/ticket/102 UM:#102]'' <br/> ''[https://code.metoffice.gov.uk/trac/um/ticket/564 UM:#564]'' <br/>|| || 7.3: || MetO:<br/> '''fcm:um_br/dev/hadvh<br/>/vn8.2_coloz_fix''' <br/> Puma: <br/> '''fcm:um_br/dev/foconnor/<br/>vn8.2_coloz_fix''' || Lodged at vn10.1 as part of the <br/> UKCA bugfix package [https://code.metoffice.gov.uk/trac/um/browser/main/branches/dev/fionaoconnor/vn10.1_ukca_bugfix_package vn10.1_ukca_bugfix_package] under ticket [https://code.metoffice.gov.uk/trac/um/ticket/564 UM:#564] || CLOSED || -
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| 55 || Use of trigonometric variables e.g. ''f3_at_u'' <br/> not consistent with ENDGame || [https://code.metoffice.gov.uk/trac/um/ticket/658 UM:#658] || || All UKCA || [https://code.metoffice.gov.uk/trac/um/changeset/8682/main/branches/dev/mohitdalvi/vn10.2_ukca_bugfix_package vn10.2_ukca_bugfixes_package] || Lodged at UM10.2 as part of #805 || CLOSED || Mohit Dalvi
  
| 55 || Use of trigonometric variables e.g. ''f3_at_u'' <br/> not consistent with ENDGame || [https://code.metoffice.gov.uk/trac/um/ticket/658 UM:#658] || || All UKCA || [https://code.metoffice.gov.uk/trac/um/changeset/8682/main/branches/dev/mohitdalvi/vn10.2_ukca_bugfix_package vn10.2_ukca_bugfixes_package] || Lodged at UM10.2 as part of #805 || CLOSED || Mohit Dalvi
 
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| 56 || Array size issues with UKCA tracers when using EG limited area models|| [https://code.metoffice.gov.uk/trac/um/ticket/682 UM:#682] || || ENDGAME UKCA LAMs || MOSRS:<br/> [https://code.metoffice.gov.uk/trac/um/browser/main/branches/dev/nicksavage/vn10.1_ukca_eg_array_dims vn10.1_ukca_eg_array_dims] || to be lodged at UM10.2 || lodged at UM10.2 || CLOSED || -
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| 56 || Array size issues with UKCA tracers when using EG limited area models|| [https://code.metoffice.gov.uk/trac/um/ticket/682 UM:#682] || || ENDGAME UKCA LAMs || MOSRS:<br/> [https://code.metoffice.gov.uk/trac/um/browser/main/branches/dev/nicksavage/vn10.1_ukca_eg_array_dims vn10.1_ukca_eg_array_dims] || lodged at UM10.2 || CLOSED || -
 
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| 57 || Incorrect logic for DMS anciliaries required || [https://code.metoffice.gov.uk/trac/um/ticket/756 UM:#756] || || UKCA jobs not using <br/> CLASSIC but without DMS in chemistry || MOSRS:<br/> [https://code.metoffice.gov.uk/trac/um/browser/main/branches/dev/vn10.1_aqum_eg_fixes vn10.1_aqum_eg_fixes] || Model stops with message about <br/> missing input. Low priority - rare edge case with informative error message.<br/> See [https://code.metoffice.gov.uk/trac/um/ticket/2814 UM:#2814]. || CLOSED || Nick Savage
  
| 57 || Incorrect logic for DMS anciliaries required || [https://code.metoffice.gov.uk/trac/um/ticket/756 UM:#756] || || UKCA jobs not using <br/> CLASSIC but without DMS in chemistry || MOSRS:<br/> [https://code.metoffice.gov.uk/trac/um/browser/main/branches/dev/vn10.1_aqum_eg_fixes vn10.1_aqum_eg_fixes] || Model stops with message about <br/> missing input. Low priority - rare edge case with informative error message.<br/> See [https://code.metoffice.gov.uk/trac/um/ticket/2814 UM:#2814]. || CLOSED || Nick Savage
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| 134 || GLOMAP-mode impaction scavenging routine ukca_impc_scav affected by the rate of aerosol removal by rainfall || [https://code.metoffice.gov.uk/trac/um/ticket/6419 UM:#6419] || || vn10.3+ || || A bug has been identified in the GLOMAP-mode impaction scavenging routine ukca_impc_scav that affects the rate of aerosol removal by rainfall. It is contained within code executed when the temporary logical l_fix_ukca_impscav is set to true. That code was introduced as a fix for two other bugs by #1421. <br/> The problem is caused by a mismatch of conditions under which the working variable interzz is (a) calculated and (b) used. Both (a) and (b) occur within the iprecip loop that loops over the two rainfall types (convective and large-scale). However, the use (b) occurs if totrain(jl) > 0.0 while the calculation (a) occurs in a preceeding nbox loop only if allrain(iprecip,jl) > 0.0. This will only work if both rainfall types are non-zero or both are zero. <br/> If convective rain is zero but total rain is not, scavenging associated with convective rain may still be non-zero, calculated using an un-initialised interzz value (potentially a non-zero compile-time value or the value from a previous call). Likewise, if large-scale rain is zero but total rain is not then scavenging associated with large-scale rain may still be non-zero, calculated using the interzz value for convective rain from the previous iteration of the precip loop. <br/> This bug was discovered during LFRic testing when the use of an un-initialised value caused the model to crash when UKCA was switched on in the proto_gal7 configuration. <br/> The bug can be fixed by using the allrain(iprecip,jl) > 0.0 condition in both nbox loops. || CLOSED || John Hemmings
  
| 134 || GLOMAP-mode impaction scavenging routine ukca_impc_scav affected by the rate of aerosol removal by rainfall || [https://code.metoffice.gov.uk/trac/um/ticket/6419 UM:#6419] || || vn10.3+ || || A bug has been identified in the GLOMAP-mode impaction scavenging routine ukca_impc_scav that affects the rate of aerosol removal by rainfall. It is contained within code executed when the temporary logical l_fix_ukca_impscav is set to true. That code was introduced as a fix for two other bugs by #1421. <br/> The problem is caused by a mismatch of conditions under which the working variable interzz is (a) calculated and (b) used. Both (a) and (b) occur within the iprecip loop that loops over the two rainfall types (convective and large-scale). However, the use (b) occurs if totrain(jl) > 0.0 while the calculation (a) occurs in a preceeding nbox loop only if allrain(iprecip,jl) > 0.0. This will only work if both rainfall types are non-zero or both are zero. <br/> If convective rain is zero but total rain is not, scavenging associated with convective rain may still be non-zero, calculated using an un-initialised interzz value (potentially a non-zero compile-time value or the value from a previous call). Likewise, if large-scale rain is zero but total rain is not then scavenging associated with large-scale rain may still be non-zero, calculated using the interzz value for convective rain from the previous iteration of the precip loop. <br/> This bug was discovered during LFRic testing when the use of an un-initialised value caused the model to crash when UKCA was switched on in the proto_gal7 configuration. <br/> The bug can be fixed by using the allrain(iprecip,jl) > 0.0 condition in both nbox loops. || CLOSED || John Hemmings
 
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|| 135 || The SO2 dry deposition improvements added under [https://code.metoffice.gov.uk/trac/um/ticket/5167 #5167] do not work for ''Convection permitting configurations'' (e.g Nested suite) and fail due to absence of Convection diagnostics.<br/> The error message could be turned to a warning and related fields initialised to zero || [https://code.metoffice.gov.uk/trac/um/ticket/6433 um:#6433] || || vn11.7+ || || || '''OPEN''' || (Reported by Hamish/ Adrian)
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|| 135 || The SO2 dry deposition improvements added under [https://code.metoffice.gov.uk/trac/um/ticket/5167 #5167] do not work for ''Convection permitting configurations'' (e.g Nested suite) and fail due to absence of Convection diagnostics.<br/> The error message could be turned to a warning and related fields initialised to zero || [https://code.metoffice.gov.uk/trac/um/ticket/6433 um:#6433] || || vn11.7+ || || Lodged at UM13.3 || '''CLOSED''' || (Reported by Hamish/ Adrian) Charlotte Norris
 
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|| 136 || There appears to be a bug in some Section 51 diagnostics. <br/>|| [https://code.metoffice.gov.uk/trac/um/ticket/6598 6598] || || Probably when Section 51 was included. || || 51996 and 51999 are fine. <br/> 51921 and 51922 are broken. <br/> Other fields unknown. <br/> Problem uncovered during [https://code.metoffice.gov.uk/trac/um/ticket/6358 6358] || '''OPEN''' || (Reported by Marc / Alan)
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|| 136 || There appears to be a bug in some Section 51 diagnostics. <br/>|| [https://code.metoffice.gov.uk/trac/um/ticket/6598 6598] [https://code.metoffice.gov.uk/trac/um/ticket/6816 um:#6816]|| || Probably when Section 51 was included. || || 51996 and 51999 are fine. <br/> 51921 and 51922 are broken. <br/> Other fields unknown. <br/> Problem uncovered during [https://code.metoffice.gov.uk/trac/um/ticket/6358 6358]<br/> Fixed code/ STASHmaster to be able to produce All P-level diagnostics at UM13.3 (except those from #147 below). Will attempt to lodge fixes for UM-Feb-24 release || CLOSED || Mohit Dalvi
 
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|| 137 || The calculation of iso2_oh is incorrect in chemistry_ctl* due to a typo in prods (H2O should be HO2) || [https://code.metoffice.gov.uk/trac/um/ticket/4466 um:#4466] || || Longstanding bug. || || Not seen if using l_fix_ukca_h2so4_ystore since vn11.6.<br/> '''It is recommended that all jobs run with l_fix_ukca_h2so4_ystore=.TRUE.''' || CLOSED || Luke Abraham
  
|| 137 || The calculation of iso2_oh is incorrect in chemistry_ctl* due to a typo in prods (H2O should be HO2) || [https://code.metoffice.gov.uk/trac/um/ticket/4466 um:#4466] || || Longstanding bug. || || Not seen if using l_fix_ukca_h2so4_ystore since vn11.6.<br/> '''It is recommended that all jobs run with l_fix_ukca_h2so4_ystore=.TRUE.''' || CLOSED || Luke Abraham
 
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|| 138 || Missing dry deposition settings in ukca_aerod for RA13NO3, RA16NO3 and RA19NO3 for CRI-Strat v2. || [https://code.metoffice.gov.uk/trac/um/ticket/6626 um:#6626] || || Since vn12.0 ([https://code.metoffice.gov.uk/trac/um/ticket/6135 um:#6136]) || || Discovered in [https://code.metoffice.gov.uk/trac/um/ticket/5751 um:#5751]. Will be fixed in that ticket || '''OPEN''' || Garry Hayman
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|| 138 || Missing dry deposition settings in ukca_aerod for RA13NO3, RA16NO3 and RA19NO3 for CRI-Strat v2. || [https://code.metoffice.gov.uk/trac/um/ticket/6626 um:#6626]<br/>[https://code.metoffice.gov.uk/trac/um/ticket/6885 um:#6885] || || Since vn12.0 ([https://code.metoffice.gov.uk/trac/um/ticket/6135 um:#6136]) || || Discovered in [https://code.metoffice.gov.uk/trac/um/ticket/5751 um:#5751]. Will be fixed in that ticket || CLOSED || Garry Hayman
 
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|| 139 || Several rose-stem failures on the new EX1A HPC || [https://code.metoffice.gov.uk/trac/um/ticket/6610 um:#6610] || || Since vn12.1 || || Also impacts use of [https://code.metoffice.gov.uk/trac/gmed/ticket/551 gmed:#551]. || '''OPEN''' || Mohit Dalvi
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|| 139 || Several rose-stem failures on the new EX1A HPC || [https://code.metoffice.gov.uk/trac/um/ticket/6610 um:#6610] || || Since vn12.1 || || Also impacts use of [https://code.metoffice.gov.uk/trac/gmed/ticket/551 gmed:#551]. || CLOSED || Mohit Dalvi
 
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|| 140 || The ''Heaviside function'' needed to scale UKCA pressure-level diagnostics is valid only for a single set of pressure levels from Stash requests. If some Sec 51/52 diagnostics are requested on say 19 pressure-levels and the same/ different ones on 36 pressure-levels, the Heaviside field in output will be applicable to only one of these. || [https://code.metoffice.gov.uk/trac/um/ticket/6816 um:#6816] || || Since vn10.1 || || || '''OPEN''' ||
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|| 140 || Heaviside Function cannot have multiple level sets || [https://code.metoffice.gov.uk/trac/um/ticket/6816 um:#6816] || || Since vn10.1 || || The ''Heaviside function'' needed to scale UKCA pressure-level diagnostics is valid only for a single set of pressure levels from Stash requests. If some Sec 51/52 diagnostics are requested on say 19 pressure-levels and the same/ different ones on 36 pressure-levels, the Heaviside field in output will be applicable to only one of these.<br/>Checked at UM13.3; separate copy of Heaviside can be produced for each set of pressure levels - Stash collates all the level sets into a single array for calculation before re-distributing for diagnostic write. || CLOSED || Mohit Dalvi
 
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|| 141 || The ''area'' variable used for units conversion of GLOMAP primary emission diagnostics (38-20X) is calculated erroneously in LAMs (or with rotated pole). || Not yet || || ALL GLOMAP:'''affects 38-20X diags in LAMs only''' || || Fix is to use the ''surf_area'' variable used for other calculations. Impact on concerned diags in Global runs being assessed || '''OPEN''' ||
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|| 141 || The ''area'' variable used for units conversion of GLOMAP primary emission diagnostics (38-20X) is calculated erroneously in LAMs (or with rotated pole). (Related to bug 119 above) || [https://code.metoffice.gov.uk/trac/um/ticket/5506 um:#5506] || || ALL GLOMAP:'''affects 38-20X diags in LAMs only''' || || Fix is to use the ''surf_area'' variable used for other calculations. Impact on concerned diags in Global runs being assessed || '''CLOSED''' || Mohit Dalvi
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|| 142 || script_spice_compiler_warning_checker <br/> Several issues raised || Not yet || || rose-stem and others || || Stricter rose-stem tests are highlighting these issues <br/> comparisions with e.g. rmdi may be risky.<br/> These are '''not bugs''' yet, but could become them if not addresssed.<br/> Code developers should fix these during code developments || CLOSE || NOT A BUG
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|| 143 || Error in print statements from UKCA_TRACERS_COPY_FROM_UM || Not yet || || spotted in CRI-Strat2 || || The final species listed in the diagnostic print statement seems to have very large concentrations (O(1E+08)) compared to others in the ppm-ppt range. Does not seem to affect model output. Reported by James Weber. || '''OPEN''' ||
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|| 144 || interchangeable use of specific humidity and water vapour mixing ratio || [https://code.metoffice.gov.uk/trac/um/ticket/6813 #6813] || || all configurations affected || || UKCA includes calculations of relative humidity, clear-sky relative humidity and saturation vapour pressure. Relative humidity calculations should be based on water vapour mass mixing ratio but are in part based on specific humidity. Also, the calculation of saturation vapour pressure is derived from saturation mixing ratio but uses a formula for deriving SVP from saturation specific humidity. This interchangeable use of specific humidity (ratio for moist air) and mixing ratio (ratio for dry air) in existing configurations introduces small numerical errors in UM and LFRic model runs. These bugs were identified at UM version vn12.2 and have been highlighted by comments in code lodged with UM ticket [https://code.metoffice.gov.uk/trac/um/ticket/6660 #6660] (in ukca_main1-ukca_main1.F90 and atmos_ukca_humidity_mod.F90). All UKCA configurations are affected. || '''OPEN''' ||
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|| 145 || all_ntp not explicitly dimensioned in UKCA_MAIN || Not yet <br/> Possible fix [https://code.metoffice.gov.uk/trac/um/changeset/110132/main/branches/dev/grenvillelister/vn12.0_all_ntp_fix here] || || all configurations affected || || all_ntp not being dimensioned explicitly in ukca_main1-ukca_main1.F90. Highlighted in NCAS CMS ticket <br/> https://cms-helpdesk.ncas.ac.uk/t/nested-ukca-suite-on-archer2/604 <br/> raised by Paul Field. Grenville Lister has found the cause and implemented a possible fix <br/> https://code.metoffice.gov.uk/trac/um/changeset/110132/main/branches/dev/grenvillelister/vn12.0_all_ntp_fix || '''OPEN''' ||
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|| 146 || flux-driven CH4 configuration pressure-level diagnostics || [https://code.metoffice.gov.uk/trac/um/ticket/6816 um:#6816] || || when using CH4 emissions-driven configurations || || Error in the STASHmaster file for pressure level diagnostics relating to CH4 emissions (52428 – 52431 & 52438-9). These settings need to be corrected to match other such variables (e.g. 52051 – O3 on pressure levels) and then tested to confirm that output is working on pressure levels. <br/> Will cover in Bug #140 ([https://code.metoffice.gov.uk/trac/um/ticket/6816 um:#6816] || CLOSED || Mohit Dalvi
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|| 147 || Missing products in Sec-50 diagnostics: Mismatch in ''ukca_chem_master'' and ''asad_flux_dat''<br/>'''50-092 STRATOSPHERIC OH LOSS''' (B153) Products for (OH + H2) changed under scheme v121 but not reflected in ''asad_flux_dat'' <br/>'''50-123 STRAT O3 LOSS: HO2 + NO3''' (B61) Product ''O2'' not available for StratTrop <br/> '''50-145 H2S + OH => SO2''' (B206) ''CRI_Strat'' Products changed to ''=> SO2 + H2O'' in v121 || [https://code.metoffice.gov.uk/trac/ukca/ticket/138 ukca:#138] || || After chem v121/ always || || || Closed || Mohit Dalvi
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|| 148 || There is a bug in the UKCA Abdul-Razzak Ghan droplet activation scheme whereby the weighted mean hygroscopicity of the internally mixed aerosols within a given mode is calculated incorrectly if there is more than one soluble aerosol composition type present (e.g., sulphate and sea-salt), with the hygroscopicity being underestimated – this will lead too few droplets being activated. || [https://code.metoffice.gov.uk/trac/ukca/ticket/106 ukca:#106]<br/>[https://code.metoffice.gov.uk/trac/um/ticket/6174 um:#6174] || || always || || The underestimate gets worse as the mass of the two soluble components become equal, and as the mass of the insoluble aerosol diminishes. The ticket also introduces new values for the hygroscopicities for sulphate and organic carbon.<br/> It could be argued that the use of the old values also represents a bug since the model previously assumed a zero hygroscopicity of organic carbon and a too-high value for sulphate. Or these could be more considered value changes. <br/> Fixed at vn13.3 || Closed || Dan Grosvenor
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|| 149 || There is a bug that causes the wrong photolysis rate field to be output for the JNO2 diagnostic when using the CRISTRAT scheme. This results from an indexing problem in photol_diags in ukca_um_photol_ctl_mod.F90 (UM vn13.2) causing the wrong photolysis rate field to be output. || [https://code.metoffice.gov.uk/trac/ukca/ticket/29 ukca:#29] <br/> [https://code.metoffice.gov.uk/trac/um/ticket/7205 um:#7205] || || Since vn11.4 [https://code.metoffice.gov.uk/trac/um/ticket/4231 um:#4231] || || In lines 641-667, the loop used to find the index for accessing the required field data in ‘photol_rates’ relies on finding the position of the ‘jno2’ label in the ratj_varnames array and does not stop searching until the end of the array. In the CRISTRAT scheme there are multiple ‘jno2’ labels with different quantum yields and only one (with yield = 100%) is the correct one for the NO2 reaction. The others are for different reactions whose rates are derived from that. The index selected will be the last of the ‘jno2’ entries which is for the wrong reaction when there are multiple entries. The same processing is used for other photolysis rate labels but I don’t think these have multiple entries.<br/> The ratj_varnames array referred to above is returned by a call to the ukca_get_photol_reaction_data API routine (dummy argument varnames_ptr). It holds the fname component of the ratj_defs structure for each photolysis reaction in the chemistry scheme. The inline documentation for this routine in ukca_chem_defs_mod.F90 does not indicate that the list returned may contain duplicates. This should be made clear to reduce the risk of misuse in future.<br/> The bug will be corrected by UKCA:#29 and linked UM ticket #7205. These tickets will remove the existing UM-side code for the photolysis rate diagnostics and replace it with code using the new UKCA diagnostic handling scheme. This will access jrates after their input to UKCA as environmental driver data not before and it uses a more robust method to index the correct fields. || Closed || John Hemmings
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|| 150 || ukca_ddepctl bug for 27 tiles || [https://code.metoffice.gov.uk/trac/ukca/ticket/19 ukca:#19] || || || || Will alter results of 27 tile ukesm1 runs. <br/> Fixed in Jules code by Garry, so no bug in UKESM2. || '''OPEN''' ||
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|| 151 || minor UM depdency bug || [https://code.metoffice.gov.uk/trac/ukca/ticket/29 ukca:#29] || || || || A minor dependency bug in ukca_emiss_diags_mode_mod.F90 was introduced by [https://code.metoffice.gov.uk/trac/ukca/ticket/34 Ticket #34] where the copydiag routine is used directly from the UM module copydiag_mod. This means that at um13.3 an extra UM module is required to build UKCA outside the UM e.g. when coupling with NAME. Instead, the routine should be used from the module `ukca_um_legacy_mod` allowing it to be replaced with a stub in non-UM builds. || Closed || John Hemmings
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|| 152 || correct bug in water_content_v || [https://code.metoffice.gov.uk/trac/ukca/ticket/130 ukca:#130] || || || || The code appears to be different to the description in the text book <br/> Fundamentals of Atmospheric Modelling || '''OPEN''' || Dan Grosvenor <br/> and <br/> Alan J Hewitt
 
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Revision as of 12:35, 6 February 2024

The aim of this page is to present the information on the new bug reporting system. All bugs should be reported to ukca_bugs@metoffice.gov.uk. More details of the approach to reporting and fixing bugs is contained in the document here .

Bug fixes table

This is a list of all reported bugs, with a link to tickets with more information on the issue and branches to fix it. Some of the bugs/ issues are described in more detail on an older bugfixes page. The UM versions listed are those where the bug is known to be present. Please note however, that bugs in versions before 8.2 are not reported here, although information on some of these can be found here.

# Description Ticket Affected
Versions/
Config 		Branch with fix Remarks OPEN/CLOSED Owner
MetO NCAS
1 Improper construction of filename
for Background Aerosol data used for Fast-JX/ HetPSC 		#4283 #439 8.2-8.3 MetO:
fcm:um_br/pkg/Share/vn8.2_pkg_ukca_bugfixes
Puma:
fcm:um_br/dev/nhsavage/vn8.2_pkg_ukca_bugfixes 		Lodged at UM8.3.
Note: Likely to clash with
some vn8.2 science branches. 		CLOSED -
2 SO3 missing from UKCA_CSPECIES
3 MODE diagnostics indexing issue
4 Correct the methane initialisation
when l_prescribe_ch4 option is selected
5 Logic for Heterogenous reactions under TropIsop Chem
6 String length differences in Strat+Trop
reaction rate definition array
7 Incorrect Loop control for a Fast-JX routine
8 Remove N2O from lumped N species for Stratospheric Chemistry
9 Fix an initialisation issue that caused
consecutive runs to give different results
10 Incorrect read-size for a Fast-JX lookup table
11 Minor write statement formatting issues
12 Minor variable/ array initialisation issues.
13 Missing initialisation of COS LowBC #4956 #651 8.2
CheST+Aero		 MetO:
fcm:um_br/dev/hadfo/vn8.2_ukca_COSmmr_bugfix
Puma:
fcm:um_br/dev/foconnor/vn8.2_ukca_COSmmr_bugfix		 Lodged at UM8.2 CLOSED -
14 UKCA Age-of-Air setup bug #5175 #636 8.2-8.5
AgeAirOnly		 MetO:
fcm:um_br/dev/hadzm/vn8.5_ukca_AgeAirOnly_fix
Puma:
fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Lodged at UM8.5 CLOSED -
15 Incorrect factors for MODE emiss diagnostics Part of
#4301		 #636 8.4-8.5
GLOMAP		 MetO: Included in
fcm:um_br/dev/hadcj/vn8.4_ukca_combined_scav
fcm:um_br/dev/hadcj/vn8.5_ukca_combined_scav
Puma:
fcm:um_br/dev/cce_cj/vn8.4_ukca_combined_scav
fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Lodged at UM8.5 CLOSED -
16 Array Dimensioning/ Indexing issues
affecting ENDGAME		 #5420 #636 8.4-8.5
EG+UKCA		 MetO:
fcm:um_br/dev/hadzm/vn8.5_ukca_dims_uninit_fixes
Puma:
fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Lodged at UM8.5 CLOSED -
17 Activate: Value underflow trap combined with debug-level Part of
#5420		 #636 8.2-8.5
Activate		 MetO: Included in
fcm:um_br/dev/hadzm/vn8.5_ukca_dims_uninit_fixes
Puma:
fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Lodged at UM8.5 CLOSED -
18 Errors in UKCA CheST+Het/PSC setup code #5465 #652 8.5
CheST+
Het/PSC		 MetO:
fcm:um_br/dev/fris/
vn8.5_fix_het_psc
Puma:
fcm:um_br/dev/foconnor/
vn8.5_fix_het_psc		 Lodged at UM8.5 CLOSED -
19 Change in UKCA results when
print/ debug level is changed		 #5470 #636 8.2-8.6
GLOMAP		 MetO:
fcm:um_br/dev/hadzm/vn8.6_ukca_fix_prstatus_diff
Puma:
fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Lodged at UM8.6 CLOSED -
20 Failures in asad_chem_diags when
Print-level=Diag and using UmPrint
as Asad debug output exceeds buffer size		 Part of #5470 #650 8.6 MetO: Included in
fcm:um_br/dev/hadzm/vn8.6_ukca_fix_prstatus_diff
Puma:
fcm:um_br/dev/mdalvi/vn8.6_ukca_remove_asad_prints		 Lodged at UM8.6 CLOSED -
21 Incorrect calculation of some ASAD 3-D diags #5922 #636 8.2-8.6 MetO:
fcm:um_br/dev/hadlk/vn8.6_UKCA_3Demis_FixUnits
Puma:
fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Lodged at UM8.6 CLOSED -
22 Indexing bug - sin_v_latitude Part of
#5420		 #636 8.5
EG+UKCA		 MetO: Included in
fcm:um_br/dev/hadzm/vn8.5_ukca_dims_uninit_fixes
Puma:
fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Lodged at UM8.5 CLOSED -
23 Bug in Fast-JX mass calculation #5404 #565
Also #636		 7.3:
FastJX		 MetO:
fcm:um_br/dev/frtf/
vn8.4_fastj-x_debug
Puma:
fcm:um_br/dev/luke/
vn8.4_FJX_dm_3d_bugfix
fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Seems to mostly affect
Low-top or hi-res runs.
Lodged at vn9.0		 CLOSED -
24 Erroneous 50% reduction factor in
aerosol sedimentation velocity calc		 Part of #6105 Part of #647 8.2:
GLOMAP		 MetO:Included in
fcm:um_br/dev/frjy/
vn8.4_ukca_vgrav_av
fcm:um_br/dev/hadfo/vn8.6_ukca_bugfixes
_package_for_GA7
Puma:
fcm:um_br/dev/dan2012/vn8.4_Sedimentation_Fix
fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Lodged at vn9.0 CLOSED -
25 ACTIVATE uses saturation mix ratio instead
of saturation vap pressure		 Part of #6105 #636 8.2:
ACTIVATE		 MetO:
fcm:um_br/dev/frjy/
vn8.4_ukca_vgrav_av
fcm:um_br/dev/hadfo/vn8.6_ukca_bugfixes
_package_for_GA7
Puma: Included in
fcm:um_br/dev/dan2012/vn8.4_Nenes_Activate
fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Lodged at vn9.0 CLOSED -
26 TropChem: uses mmr instead of vmr for Q Part of #6105 #636 8.2:
TropIsop		 MetO:
fcm:um_br/dev/hadfo/vn8.6_ukca_bugfixes
_package_for_GA7
Puma: fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Lodged at vn9.0 CLOSED -
27 Erroneous reaction rate for OH+MGLY reaction Part of #6105 #636 8.2: MetO: For StratTrop/CheST
fcm:um_br/dev/hadfo/vn8.6_ukca_bugfixes
_package_for_GA7
for TropIsop Included in:
fcm:um_br/dev/hadfo/vn8.4_ukca_
update_tropisop_rate_coeffs
Puma: For StratTrop/CheST
fcm:um_br/dev/foconnor/vn8.4_ukca_bugfix
_StratTrop_OHMGLY_rxnrate
For TropIsop/CheT: Included in
fcm:um_br/dev/foconnor/vn8.4_vn8.4_ukca
_update_tropisop_rate_coeffs
fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Lodged at vn9.0 (StratTrop only) CLOSED -
28 Indexing bug - all_tracers array
in Plume Scavenging branch		 Part of #6105 None 8.4:
EG+Plume Scav		 MetO: Included in
fcm:um_br/dev/hadfo/vn8.6_ukca_bugfixes
_package_for_GA7
Puma: fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Lodged at vn9.0 CLOSED -
29 Indexing bug - asad_chemdiags%diag_type in asad_tendency_ste Part of #6105 #636 8.2: MetO: Included in
fcm:um_br/dev/hadfo/vn8.6_ukca_bugfixes
_package_for_GA7
Puma: fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Lodged at vn9.0 CLOSED -
30 Indexing bug - f3_at_u Part of #6105 #636 8.4:
EG+UKCA		 MetO: Included in
fcm:um_br/dev/hadfo/vn8.6_ukca_bugfixes
_package_for_GA7
Puma: fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Lodged at vn9.0 CLOSED -
31 FP exceptions in asad_sparse_vars
or asad_spimjmp		 #5616
UM:#368		 #555 7.3:
CheT+Aero		 MetO:
fcm:um_br/dev/fris/vn8.4_increase_rafeps
Puma:
fcm:um_br/dev/nhsavage/vn8.4_increase_rafeps		 Temporary Work-around.
May not work in
all cases
CLOSED as not seen any more. May re-open		 CLOSED Nick Savage
32 ACTIVATE:uses cloud_liq_water (diagnostic) which is
not consistent with cloud fraction (prognostic)		 Part of #6105 #636 7.3:
ACTIVATE		 MetO:
fcm:um_br/dev/hadfo/vn8.6_ukca_bugfixes
_package_for_GA7
Puma:
fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Lodged at vn9.0 CLOSED -
33 RADAERv2 in UMUI: Look-up table files linked to wrong Unit numbers None None 8.5-8.6 Enter _an_ files for accumulation mode
and _ac_ files for the
aitken/insol accum mode boxes
on the RADAER panel		 No code change involved CLOSED -
34 ACTIVATE: Argument dimensions not compatible with ENDGame
(should specify 1:model_levels)		 Part of #6105 #636 8.5:
EG-Activate		 MetO: Included in
fcm:um_br/dev/hadfo/vn8.6_ukca_bugfixes
_package_for_GA7
Puma:
fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86		 Lodged at vn9.0 CLOSED -
35 Error in labelling: Surface resistance <--> stomatal resistance ? #6417
UM:#1409
um:#5751
um:6885		 #653 7.3: None Will be folded into larger dry deposition work plan CLOSED Fiona O'Connor / Garry Hayman
36 Error in calculation of Column Ozone diagnostic UM:#102
UM:#564
7.3: MetO:
fcm:um_br/dev/hadvh
/vn8.2_coloz_fix
Puma:
fcm:um_br/dev/foconnor/
vn8.2_coloz_fix		 Lodged at vn10.1 as part of the
UKCA bugfix package vn10.1_ukca_bugfix_package under ticket UM:#564		 CLOSED -
37 Mismatch in levels for UKCA non-transported prognostics/ chem_diags.
Dimensions not compatible with ENDGame
 #6376 #649 9.1
ENDGame-UKCA		 MetO:
fcm:um_br/dev/hadzm/vn9,1_ukca_fix_chemdiag_levs
Puma:
fcm:um_br/dev/mdalvi/vn9.1_ukca_fix_chemdiag_levs		 Lodged at vn9.1 CLOSED -
38 Missing logical for volcanic so2 emissions. UM:#1350
#6418		 #656 MOSRS:
branches/dev/mohitdalvi/vn10.5_make_volc
_so2emiss_optional		 Lodged at 10.6 CLOSED Mohit Dalvi
39 Fast-JX fails if .NOT. L_PC2 and .NOT. l_3d_cca #6443 #667 8.2-9.1 MetO:
fcm:um_br/dev/fris/vn9.1_fastjx_index_bug
Puma:
fcm:um_br/dev/nhsavage/
vn9.1_fastjx_index_bug		 Lodged at vn9.1 CLOSED -
40 UKCA fails if MODE switched Off
10m wind not in D1 but req for AeroChem		 Part of
UM:#112		 9.1 UKCA+AeroChem;
MODE & CLASSIC
Off		 MOSRS:
fcm:um.xm_br/dev/mohitdalvi/vn10.0_ukca_update_app		 Lodged at vn10.0 CLOSED -
41 OC biomass burning emissions - incorrect
conversion. Assumes emissions as kg POM, but (new)
ancils are kg C		 #6429 vn8.5: MetO:
fcm:um_br/dev/fpbj/
vn8.6_ukca_mode
_BBOC-POM_bugfix

Puma:
None		 The scaling up of OC to POM is now expected to be done when creating the ancils. In the netcdf system the units (i.e. OC or POM) will be explicitly given in the meta data to avoid this problem. CLOSED -
42 RADAER lookup table reading bug.
Input values not passed to RADAER		 #6616
part of MOSRS UM:#112		 vn9.2:
with RADAER		 MetO:
fcm:um_br/dev/hadzm/vn9.2_ukca_fix_radnml_read
MOSRS:
fcm:um.xm_br/dev/mohitdalvi/vn10.0_ukca_update_app		 Lodged at vn10.0 CLOSED -
43 Reconfiguration bug. L_UKCA used for
setting tr_levels before RUN_UKCA is read		 vn8.3:vn9.0 UKCA with
Classic fully Off		 MetO:
fcm:um_br/dev/hadzm/vn8.6_fix_rcf_stshcomp_ukca

Puma:
None		 Automatically fixed under STSHCOMP
rationalisation at vn8.6 (#5331)		 CLOSED -
44 Logicals set to default TRUE:
l_ukca_ibvoc: aborts if JULES copy is not set.
l_ukca_plume_scav: non-GLOMAP (e.g. Age-Air only) run crashes.		 part of MOSRS UM:#112 vn9.2: UKCA MOSRS:
fcm:um.xm_br/dev/mohitdalvi/vn10.0_ukca_update_app		 Lodged at vn10.0 CLOSED -
45 nlev is not passed to asad_impact in asad_cdrive UM:#252 All versions MOSRS:
fcm:um.x_br/dev/scottwales/r1974_asad_impact_argument		 See MOSRS ticket UM:#252. Lodged in vn10.0. EXBUG from NCI. CLOSED -
46 Inconsistent use of wet_levels and model_levels
in UKCA_AERO_CTL 1-D arrays		 None All versions None Impact if wet_levels/= model_levels, but
this option has never been supported for New Dynamics or ENDGAME and
wet_levels is being retired by UM:#425 from 10.2.		 CLOSED -
47 Dimension mismatch: q_chem, t_chem not
considering extra level for ENDGame		 UM:#379 ENDGame-UKCA Example fix here (MOSRS) Lodged at UM10.1 as
part of UM:#239		 CLOSED -
48 Bugs in RADAER - dimensions, asymmetry param UM:#380 UM:#564 All RADAER Example fix here (MOSRS) and here (MOSRS) Leads to div-by-zero error in rescale_phase_fnc.
Lodged at UM10.1 as part of the UKCA bugfix package
under ticket UM:#564		 CLOSED -
49 UKCA emissions: incorrect number,
un-initialised slots in all_emissions()		 UM:#381 All UKCA Example fix here (MOSRS) Lodged at vn10.2 as
part of UM:#805		 CLOSED Mohit Dalvi
50 ukca_solve_coagnucl failures UM:#319 UKCA-GLOMAP Example fix here (MOSRS) Mainly a workaround
To be lodged		 CLOSED Mohit Dalvi/Graham Mann?
51 Units of wetland emissions UM:#571 All versions Example fix here (MOSRS) Wetland emissions misinterpreted as
gridbox mean rates rather than a land
fraction rate - Lodged at UM10.1 as part of the
UKCA bugfix_package under ticket UM:#564		 CLOSED -
52 PSC surface area set to zero? UM:#609, UM:#595 UKCA with l_het_psc Lodged at UM10.4
595 corrects GLOMAP aero surf area units,
609 corrects logic for using Clim/CLASSIC/GLOMAP aero surf area		 CLOSED Mohit Dalvi/ Luke Abraham
53 UKCA RADAER namelists aren't read on the Cray UM:#577 RADAER, some platforms only Change to input files, not code
M. Richardson to share info on back porting'		 Files have been edited after vn10.1 by Sytems Team : for older versions here is a Namelist workaround CLOSED -
54 Offline oxidants Chemistry:
Diagnostics not properly initialised		 UM:#659 Offline Chem vn10.3.1_ukca_correct_oxidants Lodged at UM10.3 Closed
55 Use of trigonometric variables e.g. f3_at_u
not consistent with ENDGame		 UM:#658 All UKCA vn10.2_ukca_bugfixes_package Lodged at UM10.2 as part of #805 CLOSED Mohit Dalvi
56 Array size issues with UKCA tracers when using EG limited area models UM:#682 ENDGAME UKCA LAMs MOSRS:
vn10.1_ukca_eg_array_dims		 lodged at UM10.2 CLOSED -
57 Incorrect logic for DMS anciliaries required UM:#756 UKCA jobs not using
CLASSIC but without DMS in chemistry		 MOSRS:
vn10.1_aqum_eg_fixes		 Model stops with message about
missing input. Low priority - rare edge case with informative error message.
See UM:#2814.		 CLOSED Nick Savage
58 Fastj-X runs on patches all in dark UM:#1360 UKCA jobs using FastJ-X None yet Optimisation not bug. Ticket stays open but does not belong here CLOSED Nick Savage
59 Mismatch in levels while reading
CDNC from D1 under ENDGame		 UM:#704 EG-UKCA vn9.0+
with Indirect effects		 MOSRS: vn10.0_fix_cdnc_lev Lodged at UM10.2 CLOSED Mohit Dalvi
60 Model failure with PrStatus_Diag UM:#784 UKCA on Cray MOSRS: vn10.2_ukca_prstat_diag_fixes Lodged at UM10.2 CLOSED Mohit Dalvi
61 MPI BCAST bug in NetCDF emiss code UM:#782 vn10.1 UKCA
with Netcdf emiss		 MOSRS: vn10.2_ukca_netcdf_bcastbug Lodged at UM10.2 CLOSED Mohit Dalvi
62 Inconsistency in aero_surf area used in
heterogeneous reactions routine		 UM:#778 UKCA+ het Fixed as part of #98 (non transported prognostics Closed
63 Inconsistency in timestep/ interval
calculation for BE-Offline scheme		 UM:#774 All BE Offline vn10.2_ukca_repair_interval Lodged at vn10.2 CLOSED Colin Johnson
64 Very low cloud fraction values
can cause failures in Fastj/jx		 UM:#757 Any Temporary fix:
vn10.2_ukca_acf_zero		 Temporary workaround
lodged at vn10.2		 CLOSED -
65 qcl not correctly initialised
in ukca_calc_aqueous_6a		 Part of UM:#805 UKCA run with
6A convection		 MOSRS: vn10.2_ukca_bugfixes_package Lodged at UM10.2 CLOSED Mohit Dalvi
66 Crash in NetCDF emissions and oxidants routines
when using NetCDF-4 libraries		 NA vn10.0-10.2 UKCA
+ NetCDF		 MOSRS: vn10.2_ukca_readnc_offline_fix Automatically fixed as part of UM:#282 CLOSED -
67 Error in indexing of Radiative gases array.
Radiation sees MMR of the wrong ('next') species		 UM:#1150 All EG-UKCA with
gas-radiative feeback		 MOSRS: vn10.2_grgas_addr_fix Lodged at UM10.3 CLOSED Marc Stringer (UKESM)
68 HO2 heterogeneous loss rate 1st order(?) No ticket No ticket Strat-Trop and Tropisop with l_ukca_trophet=TRUE None This may be correct CLOSED Nick Savage
69 Inconsistency between aerosol size and mmr/Nd.
wetdp and drydp not recalculated after aerosol remoding		 UM:#1089 ALL UKCA- GLOMAP. MOSRS UM10.2: vn10.2_ukca_wetdp_drydp_recalc_bug
[MOSRS UM10.3: vn10.3_ukca_wetdp_drydp_calc_fix		 Leads to unphysical large spikes
in AOD. Believe UM7.3 jobs may be
unaffected but haven't checked.
Lodged at UM10.4		 Closed
70 Age-of-air only configuration does not work at UM10.3 part of UM:#1171 UM10.3 Age-air-only MOSRS: vn10.3_ageair_and_minor_fixes Lodged at UM10.3 CLOSED Mohit Dalvi
71 Minor bugs flagged up by rigorous compilation flags:
dust_flux: array not allocated if L_dust=False, but passed regardless to ukca_new_emiss_ctl
soil_layer_moisture: first dimension=0 if no land on PE.
advt(): variable used in loop over total tracers when size is jpctr (=chem_tracers).
nldepx: out-of-bounds with Offline oxidants scheme. Size of array
should be 6+jpspec, based on information from ASAD developer.		 UM:#1171 UKCA+NetCDF emiss MOSRS: vn10.3_ageair_and_minor_fixes Lodged at UM10.3 CLOSED Mohit Dalvi
72 UKCA Dry Deposition: Surface resistance values
not set for some species		 UM:#1250 UM7.3+ MOSRS: vn11.0_surface_resistance Lodged at vn11.1
Follow-on ticket to remove temporary logical (l_fix_improve_drydep) UM:#3997		 CLOSED -
73 UKCA-GLOMAP: MDT< MDTMIN warnings from GA6+ runs UM:#1251 UM7.3+ None yet To be Lodged CLOSED - see UM ticket UM:#1332 Graham Mann
74 Bug in ukca_tropopause with definition of PV tropopause
Fix to be combined with Bug 75 below		 UM:#1283
New ticket UM:#1367		 UM10.3 MOSRS: vn10.6_ukca_tropopause_amendment Scope extended to include modifications to print statement. To be Lodged, but isn't sufficient to fix STE flux diagnostics
Lodged at vn11.2		 CLOSED Mohit Dalvi
75 Bug in STE fluxes UM:#1367 ENDGame? vn11.1_ukca_fix_o3_ste Lodged at vn11. CLOSED Mohit Dalvi
76 Scale Lightning emissions UM:#1310 UMvn7.3+ vn10.2_scale_lightning_nox works but scaling is to be added as namelist variable for lodging purposes Lodged at 10.5 CLOSED -
77 Bug in microphysics process rates used by GLOMAP which leads to process rates being ~O(10) times too low and hence too small aerosol removal. The aerosol removal has to be tuned in response to this bugfix bugfix: UM:#367 Tunings: UM:#854 GA4 + Configs [tunings applied in GA7 development +) Bugfix: vn10.2_mphys_bugs_improvements
Tunings: vn10.2_ukca_asnow_rfrac_tune

Bugfix and Tunings backported to PUMA br at UMvn8.4.
Bugfix: mdalvi/vn8.4_mphys_bugfix
Tuning: j.mollard/
vn8.4_scav_bugfix
_with_JMscavimpr [revision 20160]		 Both Lodged from UM10.3 CLOSED Jonathan Wilkinson/Jane Mulcahy
78 GLOMAP dust bugs:
1. Mapping of bin->mode emissions
2. incorrect STASH options codes		 UM:#1355 UM10.2:, GLOMAP
with dust		 vn10.3_ukca_dust_diag_emis_fixes Lodged at UM10.3 Closed Stephanie Woodward
79 Aerosol Impaction scavenging bugs:
1. Incorrect use of Conv Frac (FC)
2. Total (conv+dyn) precip rate applied separately for convective as well as dynamic scavenging (double counting)		 UM:#1421
Retire logical at UM:#4145		 vn7.3: GLOMAP vn10.3_ukca_impscav_fix
vn11.1_retire_l_fix_ukca_impscav		 Lodged at UM10.3
Target UM11.2		 Closed
80 H2O feedback broken under ENDGAME UM:#1646 All EG jobs with H2O feedback? None In progress CLOSED Colin Johnson
81 Runs with segment/ restart interval < 5 days
fail due to NetCDF emiss update bug		 UM:#948 but to be fixed under
UM:#162		 UM10.2+ , NetCDF emissions Temporary workaround:
1.vn10.3_ncdf_emiss_greg_fix.
2. Use NetCDF emissions from /projects/ukca-meto/mdalvi/ancil/daily		 Lodged at 10.6.1 CLOSED Alistair Sellar/ Mohit Dalvi
82 Incorrect arguments to ukca_calcminmaxndmdt.F90 UM:#1801 10.2 - 10.4 r21272 of vn10.4.1_ukca_refactorings Causes extra output from some PEs. Does not change results. to be lodged with other refactorings CLOSED -
83 error in the indexing of the tot_tracer array in the convective plume scavenging UM:#2036 ? - 10.5 r21272 of vn10.4.1_ukca_refactorings the number tracer for the first active mode will not be scavenged and there will be plume scavenging happening to the passive ozone or age of air tracer if using a chemistry scheme with l_ukca_advh2o TRUE. Fix lodged at 10.6 CLOSED Nick Savage
84 NetCDF error when using UKCA and Nudging: Model fails with 'EM_GET_VAR_INFO: Time dimension info not found, check if em_fopen was called with option l_ignore_time = .TRUE.' UM:#2095 10.2 onwards;
UKCA+Nudged		 vn10.5_nudge_fixes_and_new_app
Includes other Nudging bug-fix and
new rose-stem app		 Lodged at UM10.5 Closed Mohit Dalvi
85 Failure if using UKCA as Age-air-only
Error: "Type of solver (0) not recognised" (as this config does not use any chemical scheme)		 UM:#2148 10.5 Age-air-only
e.g. GA7 w/o GLOMAP		 vn10.5_ukca_ageair_fix Lodged as part of #1232 at 10.6.1 CLOSED Mohit Dalvi
86 Discontinuity in photolysis diagnostics UM:#2286 At least UMvn10.5 Fixed as a side effect of #1958 CLOSED Fiona O'Connor
87 Possible issues with YSTORE in UKCA_CHEMISTRY_CTL. This may mean than there is no H2SO4 because of this, with impacts on GLOMAP aerosols. Need to also select the correct products in chemistry_ctl UM:#3245 vn8.2+ Combination of two different bugs - see
branches/dev/lukeabraham/vn11.3_ukca_ystore		 Lodged at vn11.3 CLOSED Luke Abraham
88 Potential FastJX Scattering Bug UM:#3261 vn7.3 onwards vn10.6.1_fastjx_scattering_fix
vn10.8_fastjx_scattering_fix		 Lodged at vn10.9 CLOSED David Wade/Luke Abraham
89 Sea Salt Density UM:#2405 vn7.3 onwards vn10.8_ukca_ss_density_correction
 Lodged under a temporary logical at UM10.9 (so not on by default) "l_fix_nacl_density" in namelist:temp_fixes
UM:#3490 follow up ticket will review temp logical.		 CLOSED Colin Johnson
90 Extremely high/low NOy concentrations UM:#3400
UKESM:#469		 vn7.3 onwards (at least) vn10.8_ukca_nat_fixes Will be fixed for vn10.9. Runaway HNO3 values at the surface due to BL NAT sedimentation lead to global corrections during transport, leading to large stratospheric loss with knock-on impacts to O3 and ClONO2 etc. CLOSED Mohit Dalvi/Luke Abraham
91 N-R offline oxidants broken at UM10.9 and a missing k index UM:#3606 vn10.9 for break
and vn9.1 for k index		 vn10.9_fix_offline_oxidants Lodged at UM10.9 CLOSED Marc Stringer
92 UMDP084 incorrectly labels 38-476 ("Liquid cloud fraction") with units "m-3". It is a pure fraction (in the range 0.0 to 1.0) and so has no unit. UM:#3025 Lodged at UM11.1 CLOSED -
93 Inconsistent surface resistance values for organic hydro-peroxide (rooh) UM:#1250 Unknown vn11.0_surface_resistance Lodged at vn11.1
Follow-on ticket to remove temporary logical (l_fix_improve_drydep) UM:#3997		 CLOSED -
94 Data corruption in Age-of-Air (and possibly Passive O3) diagnostic on pressure levels UM:#3718 vn10.2+ vn10.9_ukca_debug_ageair_on_plev
vn11.0_ukca_ageair_and_stashm		 Lodged at UM11.0 CLOSED Mohit Dalvi
95 wet/dry deposition flags for ozone are not consistent This is a feature not a bug. CLOSED -
96 Output drydiam diagnostics where l_ukca_arg_act but not l_ukca_radaer UM:#3962 Unknown The beginnings of a solution are found in vn11.0_ukca_drydiam_act_wo_radaer. Closed as a feature.
This problem has been solved for the aerosol climatologies (see ticket UM:#3874) which use stash addressing rather than d1 addressing.
Work will begin after re-factoring of UKCA stash handling in UM:#4367		 CLOSED
as feature
97 "magic" numbers incrementing imode (e.g. . imode+4 , imode-4 , imode+3 , imode-3 )
See e.g. src/atmosphere/UKCA/ukca_calc_coag_kernel.F90		 UM:#4284 Unknown Not a bug:
"For the coarse soluble mode (imode=4) there is no larger soluble mode and also there is no larger insoluble mode. It is intended that, for that mode, there is no intra-modal coagulation with other modes."		 CLOSED -
98 Incorrect usage of npft integer when npft == 9 OR 13 UM:#4157 All versions with these options vn11.1_fix_npft Lodged at vn11.2
Follow-on ticket to remove temporary logical (l_fix_ukca_h2dd_x) UM:#4245		 CLOSED
99 UKCA dry deposition ukca_aerod.F90 HBr HOBr HCl HOCl UM:#4312 vn7.3+ vn11.1_dry_dep_species Lodged at vn11.2
Follow-on ticket to remove temporary logical (l_fix_improve_drydep) UM:#3997		 CLOSED
100 Negative concentrations of pvol_wat() UM:#4383 Unknown vn11.2_fix_neg_pvol_wat Lodged at vn11.2
Follow-on ticket to remove temporary logical (l_fix_neg_pvol_wat) UM:#4416		 CLOSED
101 Errors in reaction rates and diagnostics UM:#4466 Unknown NA CLOSED Scott Archer-Nicolls
Luke Abraham
102 Error in RESHAPE (size 3rd dimension)
in ukca_main before
CALL lsp_qclear		 UM:#4595 NA vn11.2_fix_ukca_reshape Not a bug
Testing indicates that KGO change owing to refactoring results from compiler optimisation		 Closed
103 Incorrect indexing of tmprc array: ASAD_SPIMPMJP UM:#4562 All versions Possible fix mentioned on ticket To be Lodged CLOSED Luke Abraham
104 Incorrect value for Rc for SO_2 deposition to open water ~~UM:#4635~~
UM:#5167		 vn vn11.0_Ocean_depo_tweaks To be Lodged Closed Catherine Hardacre
105 segmentation fault on ukca_plev_diags_mod.F90 UM:#4625 Unknown vn11.2_ukca_cce_87 Ticket lodged for UM vn11.3 Closed -
106 NaNs appearing when new UKCA science is turned on UM:#4397 Since vn11.1 vn11.3_ukca_exp_rose_stem Lodged at vn11.4 CLOSED Luke Abraham
107 Missing c_h2o conversion factor in offline_oxidants_be um:#4714
um:#5118		 vn11.1_offline_ox_solver_investigation Code is zq(:)=RESHAPE(q(:,:,k),(/theta_field_size/)) rather than zq(:) = RESHAPE(q(:,:,k),(/theta_field_size/))/c_h2o Closed Luke Abraham
108 Incorrect stash processing of GLOMAP load*, conc* and plume_scav diagnostics UM:#4909 UM10.6.1+ None yet To be Lodged after 11.6 CLOSED Mohit Dalvi
109 Bug in dry deposition of CH4 for 13/17/27 tiles UM:#5919 UM10.4+ None yet Bug has been fixed for vn12.0
further CH4 emissions code under development underway
but no more bug fixes required.		 CLOSED Gerd Folberth
110 UKCA solar-cycle routine does not pass NRUN-CRUN test UM:#4828 UM10.8+ vn11.3_ukca_solcyc_nruncrun To be Lodged after 11.5 CLOSED Luke Abraham
111 Cloud fraction array (cloud_frac) passed with wrong number of levels
Array passed as (row_length, rows, :), so offset by 1 level under ENDGame		 Part of UM:#4822 All ENDGame versions vn11.3_ukca_fix_cloudfrac_dim To be Lodged for 11.5 Closed John Hemmings
112 delh2so4_chem is calculated incorrectly
Incorrectly "fixed" in UM:#3245 (Bug #87).		 UM:#5076 All StratTrop+GLOMAP versions post vn8.2. Made worse post-vn11.4 if logical l_fix_ukca_h2so4_ystore is True. vn11.4_ukca_ystore_fix To be Lodged for 11.6 Closed Luke Abraham
113 Latitude bugs affecting LAM configurations UM:#5119 Unknown None yet To be lodged for 11.6 Closed John Hemmings
114 Bug in ukca_activate leading to droplet numbers being too high in the upper regions of continuous cloud columns um:#5233 r70341 Previously the number per m3 was replicated upwards from cloud base, but really this should be the number per kg of air to mimic what would happen in a rising air parcel (parcel expansion would lead to the number per m3 reducing with height as an air parcel rises, scaling with the air density). This is likely to make the largest difference for deep clouds where there are deep contiguous columns. Closed Dan Grosvenor
115 Some UKCA-related variables accessed in other parts of UM remain undefined in non-UKCA configurations
Was Suite that does not call GLOMAP mode setup		 UM:#5151 Unknown None yet To be lodged for 11.6 Closed Mohit Dalvi
116 Problem with the "specific humidity change from UKCA" diagnostic (stashcode 50240) UM:#5164 UM:#3875 Unknown None yet See information in UM:#4819 Closed
117 Fix call to extract_seg and insert_seg in ukca_aero_ctl UM:#4954 10.7+ None yet See both scitech and code review of UM:#4739 Closed - not a bug
118 lam should be REAL in acsn2o5_mod.F90 UM:#5271 Unknown Fix is trivial Requires testing
will result in KGO change		 Closed
119 Incorrect calculation for gridbox area - only affects GLOMAP-mode diagnostics um:#5506 ALL versions None yet Calculation of volume appears correct, but area is not. This calculation is missing the factor fv_cos_theta_latitude so will not cause area to tend towards zero at the poles. It also seems to use an unnecessary approximation to the latitude difference (based on sinv_latitude) which may break down at high latitudes. The calculation should perhaps be consistent with subsequent volume calculation but without the delta_r factor. This will likely only affect diagnostics calculated in ukca_emiss_diags_mode, where it is used to convert from kg/m2/s to mol/gridbox/s, although it is also printed out in ukca_aero_ctl.
Not actually a bug, but is inconsistent between volume & area calculations. Take off as a bug. May be related to mass to calculation differences. Will be moved outside to the parent model.		 CLOSED - NOT A BUG
120 nrsteps warning message - eg um_n48_ga_amip_exp UM:#5505 Unknown Perhaps this should have a clean fail rather than warning? There may be a lot of rose-meta and code changes to allow nr_steps to be set in niche cases. Closed Mohit Dalvi
121 Missing ']' in STASHmaster-meta.conf entry for new item `34871` UM:#5483 UM11.6 trivial Does not affect Rose/STASH working, but prints warning in terminal Closed Marc Stringer
122 O(1D) is calculated incorrectly as a steady-state species UM:#5525 UM11.6 trivial Only affects the diagnostic. Values are a factor of 3 too large Closed Luke Abraham
123 ACTIVATE scale-invariance problem UM:#5532 UM11.6 More of an issue for LAMs. Small effects for climate simulations. Closed Hamish Gordon
124 H2 and N2 cannot be set for RCP and WMOA1 scenario routines UM:#5620 All versions Values are hard-wired in the code and cannot be changed without a branch OPEN Mohit Dalvi
125 Technical/ Rose-stem : ignore-missing flag applied to all Strattrop/CRIstat rose stem tests (instead of just NRUN-CRUN ones). UM:#5752 UM10.9+ This is likely to have missed differences in the number of output fields under subsequent changes CLOSED Mohit Dalvi
126 Fast-JX: Double counting of earth-radius in calculation of spherical mass-weighting factors. (Routine fast-jx_sphere) UM:#5760 All versions Lodged at UM11.8 CLOSED Mohit Dalvi
127 GET_EMDIAG_STASH: Return value from function can remain unset Lodged as Part of UM:#5555 All NCDF emiss versions No value expected for aerosol emissions, but variable remains unset. CLOSED Mohit Dalvi
128 Bug in UKCA stratospheric chemistry diagnostics UM:#5839 pre-UMvn10.0 The indexing/values of diagnostics m01s50i101-i104 are incorrect. Fixes provided for vn11.1 and vn11.7. May affect CMIP6 diagnostics OPEN Luke Abraham
129 Warning messages in ukca_radaer_lut_in UM:#5957 All versions Fixed as side effect of UM:#5957 CLOSED
130 Bug in aerosol dry deposition when using 27 surface types in JULES Partially fixed using UM:#5622
UM:#6088		 All versions The bug exists because of an erroneous dependency on the array size NTYPE (from JULES_SURFACE_TYPES_MOD) in subroutines UKCA_DDEPAER and UKCA_DDEPAER_INCL_SEDI. This is not appropriate because most of the processing is not written to be dependent on the surface types being used in JULES. A surface type at each location is instead inferred (in UKCA_AERO_CTL) from the roughness length and its index is held in the array ILSCAT. The index values are intended to be interpreted with reference to the JULES 9 type scheme. Only the values 1, 3, 7 and 9 are used, corresponding to forest, grassland, water and ice respectively. The indices are used to access arrays YR, CR and ALPHA that are set up in these aerosol dry deposition routines. The arrays should therefore always be of size 9 with values based on the 9 type scheme, irrespective of the JULES NTYPE value. However, alternative, incompatible arrays are set up if NTYPE is 13, 17 or 27. These were presumably intended to be accessed using the type indices consistent with the other JULES schemes but are actually accessed with the 9-type scheme indices available in ILSCAT. Inappropriate values will therefore be obtained when NTYPE is not 9.
Note that Ticket UM:#5622 will fix the bug when interactive dry deposition is not used in the chemistry or when NTYPE in JULES is 13 or 17 but will not fix it when interactive dry deposition is selected (L_UKCA_INTDD = .TRUE.) and NTYPE is 27. Fixing it for NTYPE = 27 will change results so will require a separate bug fix ticket with appropriate testing and approval.		 Closed Mohit Dalvi
131 Invalid surface roughness input to aerosol dry deposition over land UM:#6088 All versions In the UM, UKCA uses the roughness length with stash code 00026 to infer the surface type for aerosol dry deposition (and for the old non-interactive gas dry deposition scheme). However, this value is only valid over the sea. It seems to be set to 0.5 over the land from the UM data I’ve looked at. This seems to be simply a filler value with no scientific significance. As a consequence of the 0.5 value, the UKCA aerosol dry deposition routines categorise all land as forest in the UM runs (routine ukca_aero_ctl uses z0>0.1m for forest). This will interact with bug #130 in aerosol dry deposition (see above) that occurs when using any number of surface types in JULES other than 9. Closed Mohit Dalvi
132 Incorrect warning message in temp_fixes_module UM:#5957 Since vn11.0 Fixed as side effect of UM:#5957 CLOSED
133 Running a xc40_intel_um_rigorous_noomp-ukca_strattrop_exp test (not part of rose stem), reveals the use of n as an index for rc() array which is out-of-bounds, in ukca_surfddr.F90 here. UM:#6373 vn12.0 The bug is in a section of code where the points are supposed to be set to a minimal value, so should not be having any scientific impact. CLOSED Mohit Dalvi
134 GLOMAP-mode impaction scavenging routine ukca_impc_scav affected by the rate of aerosol removal by rainfall UM:#6419 vn10.3+ A bug has been identified in the GLOMAP-mode impaction scavenging routine ukca_impc_scav that affects the rate of aerosol removal by rainfall. It is contained within code executed when the temporary logical l_fix_ukca_impscav is set to true. That code was introduced as a fix for two other bugs by #1421.
The problem is caused by a mismatch of conditions under which the working variable interzz is (a) calculated and (b) used. Both (a) and (b) occur within the iprecip loop that loops over the two rainfall types (convective and large-scale). However, the use (b) occurs if totrain(jl) > 0.0 while the calculation (a) occurs in a preceeding nbox loop only if allrain(iprecip,jl) > 0.0. This will only work if both rainfall types are non-zero or both are zero.
If convective rain is zero but total rain is not, scavenging associated with convective rain may still be non-zero, calculated using an un-initialised interzz value (potentially a non-zero compile-time value or the value from a previous call). Likewise, if large-scale rain is zero but total rain is not then scavenging associated with large-scale rain may still be non-zero, calculated using the interzz value for convective rain from the previous iteration of the precip loop.
This bug was discovered during LFRic testing when the use of an un-initialised value caused the model to crash when UKCA was switched on in the proto_gal7 configuration.
The bug can be fixed by using the allrain(iprecip,jl) > 0.0 condition in both nbox loops.		 CLOSED John Hemmings
135 The SO2 dry deposition improvements added under #5167 do not work for Convection permitting configurations (e.g Nested suite) and fail due to absence of Convection diagnostics.
The error message could be turned to a warning and related fields initialised to zero		 um:#6433 vn11.7+ Lodged at UM13.3 CLOSED (Reported by Hamish/ Adrian) Charlotte Norris
136 There appears to be a bug in some Section 51 diagnostics.
6598 um:#6816 Probably when Section 51 was included. 51996 and 51999 are fine.
51921 and 51922 are broken.
Other fields unknown.
Problem uncovered during 6358
Fixed code/ STASHmaster to be able to produce All P-level diagnostics at UM13.3 (except those from #147 below). Will attempt to lodge fixes for UM-Feb-24 release		 CLOSED Mohit Dalvi
137 The calculation of iso2_oh is incorrect in chemistry_ctl* due to a typo in prods (H2O should be HO2) um:#4466 Longstanding bug. Not seen if using l_fix_ukca_h2so4_ystore since vn11.6.
It is recommended that all jobs run with l_fix_ukca_h2so4_ystore=.TRUE.		 CLOSED Luke Abraham
138 Missing dry deposition settings in ukca_aerod for RA13NO3, RA16NO3 and RA19NO3 for CRI-Strat v2. um:#6626
um:#6885		 Since vn12.0 (um:#6136) Discovered in um:#5751. Will be fixed in that ticket CLOSED Garry Hayman
139 Several rose-stem failures on the new EX1A HPC um:#6610 Since vn12.1 Also impacts use of gmed:#551. CLOSED Mohit Dalvi
140 Heaviside Function cannot have multiple level sets um:#6816 Since vn10.1 The Heaviside function needed to scale UKCA pressure-level diagnostics is valid only for a single set of pressure levels from Stash requests. If some Sec 51/52 diagnostics are requested on say 19 pressure-levels and the same/ different ones on 36 pressure-levels, the Heaviside field in output will be applicable to only one of these.
Checked at UM13.3; separate copy of Heaviside can be produced for each set of pressure levels - Stash collates all the level sets into a single array for calculation before re-distributing for diagnostic write.		 CLOSED Mohit Dalvi
141 The area variable used for units conversion of GLOMAP primary emission diagnostics (38-20X) is calculated erroneously in LAMs (or with rotated pole). (Related to bug 119 above) um:#5506 ALL GLOMAP:affects 38-20X diags in LAMs only Fix is to use the surf_area variable used for other calculations. Impact on concerned diags in Global runs being assessed CLOSED Mohit Dalvi
142 script_spice_compiler_warning_checker
Several issues raised		 Not yet rose-stem and others Stricter rose-stem tests are highlighting these issues
comparisions with e.g. rmdi may be risky.
These are not bugs yet, but could become them if not addresssed.
Code developers should fix these during code developments		 CLOSE NOT A BUG
143 Error in print statements from UKCA_TRACERS_COPY_FROM_UM Not yet spotted in CRI-Strat2 The final species listed in the diagnostic print statement seems to have very large concentrations (O(1E+08)) compared to others in the ppm-ppt range. Does not seem to affect model output. Reported by James Weber. OPEN
144 interchangeable use of specific humidity and water vapour mixing ratio #6813 all configurations affected UKCA includes calculations of relative humidity, clear-sky relative humidity and saturation vapour pressure. Relative humidity calculations should be based on water vapour mass mixing ratio but are in part based on specific humidity. Also, the calculation of saturation vapour pressure is derived from saturation mixing ratio but uses a formula for deriving SVP from saturation specific humidity. This interchangeable use of specific humidity (ratio for moist air) and mixing ratio (ratio for dry air) in existing configurations introduces small numerical errors in UM and LFRic model runs. These bugs were identified at UM version vn12.2 and have been highlighted by comments in code lodged with UM ticket #6660 (in ukca_main1-ukca_main1.F90 and atmos_ukca_humidity_mod.F90). All UKCA configurations are affected. OPEN
145 all_ntp not explicitly dimensioned in UKCA_MAIN Not yet
Possible fix here		 all configurations affected all_ntp not being dimensioned explicitly in ukca_main1-ukca_main1.F90. Highlighted in NCAS CMS ticket
https://cms-helpdesk.ncas.ac.uk/t/nested-ukca-suite-on-archer2/604
raised by Paul Field. Grenville Lister has found the cause and implemented a possible fix
https://code.metoffice.gov.uk/trac/um/changeset/110132/main/branches/dev/grenvillelister/vn12.0_all_ntp_fix		 OPEN
146 flux-driven CH4 configuration pressure-level diagnostics um:#6816 when using CH4 emissions-driven configurations Error in the STASHmaster file for pressure level diagnostics relating to CH4 emissions (52428 – 52431 & 52438-9). These settings need to be corrected to match other such variables (e.g. 52051 – O3 on pressure levels) and then tested to confirm that output is working on pressure levels.
Will cover in Bug #140 (um:#6816		 CLOSED Mohit Dalvi
147 Missing products in Sec-50 diagnostics: Mismatch in ukca_chem_master and asad_flux_dat
50-092 STRATOSPHERIC OH LOSS (B153) Products for (OH + H2) changed under scheme v121 but not reflected in asad_flux_dat
50-123 STRAT O3 LOSS: HO2 + NO3 (B61) Product O2 not available for StratTrop
50-145 H2S + OH => SO2 (B206) CRI_Strat Products changed to => SO2 + H2O in v121		 ukca:#138 After chem v121/ always Closed Mohit Dalvi
148 There is a bug in the UKCA Abdul-Razzak Ghan droplet activation scheme whereby the weighted mean hygroscopicity of the internally mixed aerosols within a given mode is calculated incorrectly if there is more than one soluble aerosol composition type present (e.g., sulphate and sea-salt), with the hygroscopicity being underestimated – this will lead too few droplets being activated. ukca:#106
um:#6174		 always The underestimate gets worse as the mass of the two soluble components become equal, and as the mass of the insoluble aerosol diminishes. The ticket also introduces new values for the hygroscopicities for sulphate and organic carbon.
It could be argued that the use of the old values also represents a bug since the model previously assumed a zero hygroscopicity of organic carbon and a too-high value for sulphate. Or these could be more considered value changes.
Fixed at vn13.3		 Closed Dan Grosvenor
149 There is a bug that causes the wrong photolysis rate field to be output for the JNO2 diagnostic when using the CRISTRAT scheme. This results from an indexing problem in photol_diags in ukca_um_photol_ctl_mod.F90 (UM vn13.2) causing the wrong photolysis rate field to be output. ukca:#29
um:#7205		 Since vn11.4 um:#4231 In lines 641-667, the loop used to find the index for accessing the required field data in ‘photol_rates’ relies on finding the position of the ‘jno2’ label in the ratj_varnames array and does not stop searching until the end of the array. In the CRISTRAT scheme there are multiple ‘jno2’ labels with different quantum yields and only one (with yield = 100%) is the correct one for the NO2 reaction. The others are for different reactions whose rates are derived from that. The index selected will be the last of the ‘jno2’ entries which is for the wrong reaction when there are multiple entries. The same processing is used for other photolysis rate labels but I don’t think these have multiple entries.
The ratj_varnames array referred to above is returned by a call to the ukca_get_photol_reaction_data API routine (dummy argument varnames_ptr). It holds the fname component of the ratj_defs structure for each photolysis reaction in the chemistry scheme. The inline documentation for this routine in ukca_chem_defs_mod.F90 does not indicate that the list returned may contain duplicates. This should be made clear to reduce the risk of misuse in future.
The bug will be corrected by UKCA:#29 and linked UM ticket #7205. These tickets will remove the existing UM-side code for the photolysis rate diagnostics and replace it with code using the new UKCA diagnostic handling scheme. This will access jrates after their input to UKCA as environmental driver data not before and it uses a more robust method to index the correct fields.		 Closed John Hemmings
150 ukca_ddepctl bug for 27 tiles ukca:#19 Will alter results of 27 tile ukesm1 runs.
Fixed in Jules code by Garry, so no bug in UKESM2.		 OPEN
151 minor UM depdency bug ukca:#29 A minor dependency bug in ukca_emiss_diags_mode_mod.F90 was introduced by Ticket #34 where the copydiag routine is used directly from the UM module copydiag_mod. This means that at um13.3 an extra UM module is required to build UKCA outside the UM e.g. when coupling with NAME. Instead, the routine should be used from the module `ukca_um_legacy_mod` allowing it to be replaced with a stub in non-UM builds. Closed John Hemmings
152 correct bug in water_content_v ukca:#130 The code appears to be different to the description in the text book
Fundamentals of Atmospheric Modelling		 OPEN Dan Grosvenor
and
Alan J Hewitt

Package branches table

For every supported version, the aim will be to have a package that fixes all bugs known to exist at that UM version. The package will be supported on both the NCAS and Met Office repositories (until a single repository is created)

UM Versions Ticket Package Branch
MetO NCAS
8.2 #4382 #439 Meto:
fcm:um_br/pkg/Share/vn8.2_pkg_ukca_bugfixes
Puma:
fcm:um_br/dev/nhsavage/vn8.2_pkg_ukca_bugfixes
8.3 #1 #2
8.4 #1 #636 Puma:
fcm:um_br/dev/mdalvi/vn8.4_ukca_fixes_from_vn86
8.6 #6105 and #5404 #647 Meto:
fcm:um_br/dev/hadfo/vn8.6_ukca_bugfixes_package_for_release_jobs
Puma:
fcm:um_br/dev/foconnor/vn8.6_ukca_bugfixes_package_for_release_jobs
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