diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index 6c3bd9e52..d6d4268cb 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -29,3 +29,4 @@
 | cjohnson-pi         | Christine Johnson  | Met Office                       | 2026-01-19 |
 | t00sa               | Sam Clarke-Green   | Met Office                       | 2026-01-20 |
 | ukmo-juan-castillo  | Juan M. Castillo   | Met Office                       | 2026-01-23 |
+| thomasmelvin        | Thomas Melvin      | Met Office                       | 2026-01-15 |
\ No newline at end of file
diff --git a/rose-stem/app/gungho_model/opt/rose-app-suite_controlled.conf b/rose-stem/app/gungho_model/opt/rose-app-suite_controlled.conf
index c3789d266..81be83085 100644
--- a/rose-stem/app/gungho_model/opt/rose-app-suite_controlled.conf
+++ b/rose-stem/app/gungho_model/opt/rose-app-suite_controlled.conf
@@ -24,6 +24,11 @@ use_xios_io=${USE_XIOS_IO}
 [namelist:logging]
 run_log_level='${LOG_LEVEL}'
 
+[namelist:partitioning]
+panel_decomposition='${PANEL_DECOMP}'
+panel_xproc=${XPROC}
+panel_yproc=${YPROC}
+
 [namelist:time]
 timestep_end='${RESTART_STOP}'
 timestep_start='${RESTART_START}'
diff --git a/rose-stem/site/common/gungho_model/tasks_gungho_model.cylc b/rose-stem/site/common/gungho_model/tasks_gungho_model.cylc
index 17c6843c5..b446910a0 100644
--- a/rose-stem/site/common/gungho_model/tasks_gungho_model.cylc
+++ b/rose-stem/site/common/gungho_model/tasks_gungho_model.cylc
@@ -34,6 +34,47 @@
         "plot_str": "baroclinic.py $NODAL_DATA_DIR/lfric_diag.nc $PLOT_DIR dcmip dry surface_pressure_temperature",
     }) %}
 
+{% elif task_ns.conf_name == "baroclinic-C48_MG" %}
+
+    {% do task_dict.update({
+        "opt_confs": ["baroclinic"],
+        "resolution": "C48_MG",
+        "DT": 3600,
+        "threads": 4,
+        "mpi_parts": 6,
+        "tsteps": 240,
+        "plot_str": "baroclinic.py $NODAL_DATA_DIR/lfric_diag.nc $PLOT_DIR dcmip dry surface_pressure_temperature",
+    }) %}
+{% elif task_ns.conf_name == "baroclinic-C48_MG-3panel" %}
+
+    {% do task_dict.update({
+        "opt_confs": ["baroclinic"],
+        "resolution": "C48_MG",
+        "DT": 3600,
+        "threads": 2,
+        "mpi_parts": 12,
+        "panel_decomp": "custom",
+        "xproc": 2,
+        "yproc": 3,
+        "tsteps": 240,
+        "plot_str": "baroclinic.py $NODAL_DATA_DIR/lfric_diag.nc $PLOT_DIR dcmip dry surface_pressure_temperature",
+    }) %}
+
+{% elif task_ns.conf_name == "baroclinic-C48_MG-2panel" %}
+
+    {% do task_dict.update({
+        "opt_confs": ["baroclinic"],
+        "resolution": "C48_MG",
+        "DT": 3600,
+        "threads": 1,
+        "mpi_parts": 27,
+        "panel_decomp": "custom",
+        "xproc": 3,
+        "yproc": 3,
+        "tsteps": 240,
+        "plot_str": "baroclinic.py $NODAL_DATA_DIR/lfric_diag.nc $PLOT_DIR dcmip dry surface_pressure_temperature",
+    }) %}
+
 {% elif task_ns.conf_name == "baroclinic-pert-C24_MG" %}
 
     {% do task_dict.update({
diff --git a/rose-stem/site/meto/groups/groups_gungho_model.cylc b/rose-stem/site/meto/groups/groups_gungho_model.cylc
index 0605786b9..0704f11ad 100644
--- a/rose-stem/site/meto/groups/groups_gungho_model.cylc
+++ b/rose-stem/site/meto/groups/groups_gungho_model.cylc
@@ -10,6 +10,9 @@
     "gungho_model_azspice_developer": [
         "gungho_model_agnesi_hyd_cart-BiP120x8-2000x2000_azspice_gnu_fast-debug-64bit",
         "gungho_model_baroclinic-C24_MG_azspice_gnu_fast-debug-64bit",
+        "gungho_model_baroclinic-C48_MG_azspice_gnu_fast-debug-64bit",
+        "gungho_model_baroclinic-C48_MG-2panel_azspice_gnu_fast-debug-64bit",
+        "gungho_model_baroclinic-C48_MG-3panel_azspice_gnu_fast-debug-64bit",
         "gungho_model_baroclinic-pert-C24_MG_azspice_gnu_fast-debug-64bit",
         "gungho_model_baroclinic-alt1-C24s_MG_azspice_gnu_fast-debug-64bit",
         "gungho_model_baroclinic-alt2-C24_MG_op_azspice_gnu_fast-debug-64bit",
diff --git a/rose-stem/site/meto/kgos/gungho_model/azspice/checksum_gungho_model_baroclinic-C48_MG-2panel_azspice_gnu_fast-debug-64bit.txt b/rose-stem/site/meto/kgos/gungho_model/azspice/checksum_gungho_model_baroclinic-C48_MG-2panel_azspice_gnu_fast-debug-64bit.txt
new file mode 100644
index 000000000..fff7d09e8
--- /dev/null
+++ b/rose-stem/site/meto/kgos/gungho_model/azspice/checksum_gungho_model_baroclinic-C48_MG-2panel_azspice_gnu_fast-debug-64bit.txt
@@ -0,0 +1,3 @@
+Inner product checksum rho = 4102EEF5FAAB93B4
+Inner product checksum theta = 423041DD82556056
+Inner product checksum u = 45017CE3BDE63034
diff --git a/rose-stem/site/meto/kgos/gungho_model/azspice/checksum_gungho_model_baroclinic-C48_MG-3panel_azspice_gnu_fast-debug-64bit.txt b/rose-stem/site/meto/kgos/gungho_model/azspice/checksum_gungho_model_baroclinic-C48_MG-3panel_azspice_gnu_fast-debug-64bit.txt
new file mode 100644
index 000000000..060f81ae0
--- /dev/null
+++ b/rose-stem/site/meto/kgos/gungho_model/azspice/checksum_gungho_model_baroclinic-C48_MG-3panel_azspice_gnu_fast-debug-64bit.txt
@@ -0,0 +1,3 @@
+Inner product checksum rho = 4102EEF5FAAB93B5
+Inner product checksum theta = 423041DD82556059
+Inner product checksum u = 45017CE3BDE63032
diff --git a/rose-stem/site/meto/kgos/gungho_model/azspice/checksum_gungho_model_baroclinic-C48_MG_azspice_gnu_fast-debug-64bit.txt b/rose-stem/site/meto/kgos/gungho_model/azspice/checksum_gungho_model_baroclinic-C48_MG_azspice_gnu_fast-debug-64bit.txt
new file mode 100644
index 000000000..542074238
--- /dev/null
+++ b/rose-stem/site/meto/kgos/gungho_model/azspice/checksum_gungho_model_baroclinic-C48_MG_azspice_gnu_fast-debug-64bit.txt
@@ -0,0 +1,3 @@
+Inner product checksum rho = 4102EEF5FAAB93BA
+Inner product checksum theta = 423041DD82556055
+Inner product checksum u = 45017CE3BDE63033
diff --git a/rose-stem/site/meto/kgos/gungho_model/ex1a/checksum_gungho_model_baroclinic-C48_MG_ex1a_gnu_fast-debug-64bit.txt b/rose-stem/site/meto/kgos/gungho_model/ex1a/checksum_gungho_model_baroclinic-C48_MG_ex1a_gnu_fast-debug-64bit.txt
new file mode 100644
index 000000000..df436b1fe
--- /dev/null
+++ b/rose-stem/site/meto/kgos/gungho_model/ex1a/checksum_gungho_model_baroclinic-C48_MG_ex1a_gnu_fast-debug-64bit.txt
@@ -0,0 +1,3 @@
+Inner product checksum rho = 4102EEF5FAB7BD35
+Inner product checksum theta = 423041DD82538AE9
+Inner product checksum u = 45017CE3BDC64744