Remove j and block Kmkhz 9c

.github/CODEOWNERS

@@ -7,13 +7,14 @@
 **/adjoint_tests             @DrTVockerodtMO                     # @mo-joshuacolclough
 **/gravity_wave              @thomasmelvin                       # @cjohnson-pi
 **/gungho_model              @thomasmelvin                       # @BShipway
-**/jedi_lfric_tests          @ss421  @matthewrmshin              # @DavidSimonin
+**/jedi_lfric_tests          @ss421  @matthewrmshin @MetOffice/r2o-systems
 **/jules                     @iboutle                            # @MetOfficessdtesam
+**/lfric2lfric               @mo-lottieturner                    # @mike-hobson
 **/lfricinputs               @mo-lottieturner                    # @mike-hobson
 **/lfric_atm                 @iboutle                            # @BShipway
 **/lfric_coupled             @HengistPodd                        # @BShipway
 **/lfricinputs               @mo-lottieturner                    # @mike-hobson
-**/linear_model              @cjohnson-pi @ss421 @matthewrmshin  # @tommbendall  # Also notifiy jedi team about linear changes.
+**/linear_model              @cjohnson-pi @MetOffice/r2o-systems  # @tommbendall  # Also notifiy jedi team about linear changes.
 **/name_transport            @jameskent-metoffice                # @tommbendall
 **/ngarch                    @christophermaynard                 # @jcsmeto
 **/shallow_water             @jameskent-metoffice                # @atb1995
@@ -22,7 +23,7 @@
 
 # Science
 **/adjoint                              @DrTVockerodtMO                     # @mo-joshuacolclough
-**/linear                               @cjohnson-pi  @ss421 @matthewrmshin # @tommbendall # Also notifiy jedi team about linear changes.
+**/linear                               @cjohnson-pi  @MetOffice/r2o-systems # @tommbendall # Also notifiy jedi team about linear changes.
 science/shared/source/constants/        @iboutle                            # @BShipway
 
 **/gungho                               @thomasmelvin                       # @iboutle
@@ -53,7 +54,7 @@ science/physics_schemes/**/stochastic_physics           @wjtmo              # @a
 
 # Interfaces
 **/coupled_interface            @mike-hobson                        # @harry-shepherd
-**/jedi_lfric_interface         @ss421  @matthewrmshin              # @DavidSimonin
+**/jedi_lfric_interface         @ss421  @matthewrmshin @MetOffice/r2o-systems
 **/jules_interface              @iboutle                            # @MetOfficessdteam
 **/jules_interface/rose-meta    @maggiehendry
 **/physics_schemes_interface    @iboutle                            # @MetOfficessdteam
@@ -70,6 +71,7 @@ rose-stem/apps                         # Mostly updated by macros, no codeowner
 build/                                 @MetOffice/ssdteam @hiker
 **/*Makefile                           @MatthewHambley @hiker
 **/*.mk                                @MatthewHambley @hiker
+**/optimisation                        @christophermaynard                 # HPC Optimisation Team
 
 # Other areas
 documentation                           # @MetOffice/ssdteam

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -6,7 +6,8 @@ body:
   - type: markdown
     attributes:
       value: |
-        Thanks for taking the time to fill out this bug report!
+        Thanks for taking the time to fill out this bug report! _If you are planning 
+        to work on this issue, then please assign yourself to it._
   - type: dropdown
     id: version
     attributes:

.github/ISSUE_TEMPLATE/custom_issue.yml

@@ -6,7 +6,8 @@ body:
   - type: markdown
     attributes:
       value: |
-        Thanks for taking the time to help improve LFRic Apps.
+        Thanks for taking the time to help improve LFRic Apps. _If you are planning 
+        to work on this issue, then please assign yourself to it._
   - type: input
     id: linked-issues
     attributes:

.github/ISSUE_TEMPLATE/documentation.yml

@@ -6,7 +6,8 @@ body:
   - type: markdown
     attributes:
       value: |
-        Thanks for taking the time to help improve the LFRic Apps documentation.
+        Thanks for taking the time to help improve the LFRic Apps documentation. 
+        _If you are planning to work on this issue, then please assign yourself to it._
   - type: input
     id: linked-issues
     attributes:

.github/pull_request_template.md

@@ -63,7 +63,7 @@ Code Reviewer: <!-- CR id, filled by SSD/CCD (e.g. @octocat) -->
 
 ## PSyclone Approval
 
-- [ ] If you have edited any PSyclone-related code (e.g. PSyKAl-lite, Kernel interface, optimisation scripts, LFRic data structure code) then please contact the [TCD Team](toolscollabdevteam@metoffice.gov.uk)
+- [ ] If you have edited any PSyclone-related code (e.g. PSyKAl-lite, Kernel interface, optimisation scripts, LFRic data structure code) then please contact the [TCD Team](mailto:ToolsCollabDevTeam@metoffice.gov.uk)
 
 # Sci/Tech Review
 

CONTRIBUTORS.md

@@ -6,6 +6,7 @@
 | jennyhickson        | Jenny Hickson      | Met Office                       | 2025-12-10 |
 | mike-hobson         | Mike Hobson        | Met Office                       | 2025-12-17 |
 | mo-marqh            | mark Hedley        | Met Office                       | 2025-12-11 |
+| mo-rickywong        | Ricky Wong         | Met Office                       | 2026-24-02 |
 | yaswant             | Yaswant Pradhan    | Met Office                       | 2025-12-16 |
 | oakleybrunt         | Oakley Brunt       | Met Office                       | 2025-12-19 |
 | harry-shepherd      | Harry Shepherd     | Met Office                       | 2026-01-08 |
@@ -31,3 +32,6 @@
 | ukmo-juan-castillo  | Juan M. Castillo   | Met Office                       | 2026-01-23 |
 | Adrian-Lock         | Adrian Lock        | Met Office                       | 2026-01-09 |
 | thomasmelvin        | Thomas Melvin      | Met Office                       | 2026-01-15 |
+| tinyendian          | Wolfgang Hayek     | Earth Sciences New Zealand       | 2026-02-02 |
+| DanStoneMO          | Daniel Stone       | Met Office                       | 2026-02-26 |
+| ericaneininger      | Erica Neininger    | Met Office                       | 2026-03-02 |

applications/adjoint_tests/example/configuration.nml

@@ -68,8 +68,8 @@ stretching_method='smooth',
 ancil_directory='/data/users/lfricadmin/data/ancils/basic-gal/yak/C12',
 checkpoint_stem_name='',
 diag_stem_name='diagGungho',
-ls_directory='/data/users/lfricadmin/data/tangent-linear/Ticket354',
-ls_filename='final_ls',
+ls_directory='/data/users/lfricadmin/data/tangent-linear/PullRequest182'
+ls_filename='final_ls_with_land',
 orography_mean_ancil_path='orography/gmted_ramp2/qrparm.orog',
 start_dump_directory='/data/users/lfricadmin/data/tangent-linear/Ticket354',
 start_dump_filename='final_pert',
@@ -220,13 +220,24 @@ write_fluxes=.false.,
 write_minmax_tseries=.false.,
 /
 &linear
-fixed_ls=.true.
-l_stabilise_bl=.true.,
+fixed_ls=.true.,
+l_stabilise_bl=.false.,
 ls_read_w2h=.false.,
 max_bl_stabilisation=0.75,
 n_bl_levels_to_stabilise=15,
 pert_option='file',
-transport_efficiency=.true.
+transport_efficiency=.true.,
+/
+&linear_physics
+blevs_m=15,
+e_folding_levs_m=10,
+l_0_m=80.0,
+l_boundary_layer=.true.,
+log_layer=2,
+u_land_m=0.4,
+u_sea_m=0.4,
+z_land_m=0.05,
+z_sea_m=0.0005,
 /
 &logging
 log_to_rank_zero_only=.false.,
@@ -275,11 +286,16 @@ panel_yproc=1,
 partitioner='cubedsphere',
 /
 &physics
-configure_segments=.false.,
+bl_segment=0,
+configure_segments=.true.,
+conv_gr_segment=16,
+gw_segment=0,
 limit_drag_incs=.false.,
+ls_ppn_segment=0,
 sample_physics_scalars=.true.,
 sample_physics_winds=.true.,
 sample_physics_winds_correction=.false.,
+ussp_segment=0,
 /
 &planet
 cp=1005.0,
@@ -355,7 +371,7 @@ tau_u=0.55,
 /
 &transport
 adjust_theta=.false.,
-adjust_tracer_equation=.false.
+adjust_tracer_equation=.false.,
 adjust_vhv_wind=.false.,
 ageofair_reset_level=10,
 broken_w2_projection=.false.,

applications/adjoint_tests/example/iodef.xml

@@ -50,6 +50,11 @@
       <axis axis_ref="vert_axis_half_levels"/>
       <axis axis_ref="ls_axis"/>
     </grid>
+    <grid id="one_level_face_time_grid">
+      <domain domain_ref="face"/>
+      <axis axis_ref="1"/>
+      <axis axis_ref="ls_axis"/>
+    </grid>
    </grid_definition>
 
    <field_definition prec="8" >
@@ -322,6 +327,7 @@
         <field id="ls_u_in_w3_data" name="u_in_w3" long_name="NS wind" unit="m s-1" grid_ref="half_level_face_time_grid" operation="once"/>
         <field id="ls_v_in_w3_data" name="v_in_w3" long_name="EW wind" unit="m s-1" grid_ref="half_level_face_time_grid" operation="once"/>
         <field id="ls_w_in_wth_data" name="w_in_wth" long_name="Upward wind" unit="m s-1" grid_ref="full_level_face_time_grid" operation="once"/>
+	      <field id="ls_land_fraction_data" name="land_area_fraction" long_name="land_area_fraction" unit="1" grid_ref="one_level_face_time_grid" operation="once" />
       </file>
 
     </file_definition>