Revise and optimise PMSL calculation

CONTRIBUTORS.md

@@ -1,41 +1,41 @@
 # Contributors
-| GitHub user         | Real Name           | Affiliation                      | Date       |
-| ------------------- | ------------------  | -------------------------------- | ---------- |
-| james-bruten-mo     | James Bruten        | Met Office                       | 2025-12-09 |
-| jedbakerMO          | Jed Baker           | Met Office                       | 2025-12-29 |
-| 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 |
-| DrTVockerodtMO      | Terence Vockerodt   | Met Office                       | 2026-01-08 |
-| ricky-lv426         | Ricky Olivier       | University of Exeter             | 2026-01-12 |
-| MetBenjaminWent     | Benjamin Went       | Met Office                       | 2026-01-15 |
-| timgraham-Met       | Tim Graham          | Met Office                       | 2026-01-15 |
-| mcdalvi             | Mohit Dalvi         | Met Office                       | 2026-01-15 |
-| mo-alistairp        | Alistair Pirrie     | Met Office                       | 2026-01-19 |
-| jasonjunweilyu      | Junwei (Jason) Lyu  | Bureau of Meteorology, Australia | 2025-12-17 |
-| EdHone              | Ed Hone             | Met Office                       | 2026-01-26 |
-| tom-j-h             | Tom Hill            | Met Office                       | 2026-01-27 |
-| alanjhewitt         | Alan J Hewitt       | Met Office                       | 2026-01-28 |
-| mo-lottieturner     | Lottie Turner       | Met Office                       | 2026-01-27 |
-| andrewcoughtrie     | Andrew Coughtrie    | Met Office                       | 2026-01-28 |
-| tommbendall         | Thomas Bendall      | Met Office                       | 2026-01-13 |
-| mo-jmanners         | James Manners       | Met Office                       | 2026-01-14 |
-| maggiehendry        | Maggie Hendry       | Met Office                       | 2026-01-29 |
-| stevemullerworth    | Steve Mullerworth   | Met Office                       | 2026-01-28 |
-| jameskent-metoffice | James Kent          | Met Office                       | 2026-01-21 |
-| 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 |
-| 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 |
-| mo-lucy-gordon      | Lucy Gordon         | Met Office                       | 2026-03-11 |
-| iboutle             | Ian Boutle          | Met Office                       | 2026-03-04 |
-| Pierre-siddall      | Pierre Siddall      | Met Office                       | 2026-03-02 |
-| jirudaya            | Jaffery Irudayasamy | University of Edinburgh          | 2026-03-11 |
+| GitHub user         | Real Name          | Affiliation                      | Date       |
+| ------------------- | ------------------ | -------------------------------- | ---------- |
+| jedbakerMO          | Jed Baker          | Met Office                       | 2025-12-29 |
+| tommbendall         | Thomas Bendall     | Met Office                       | 2026-01-13 |
+| iboutle             | Ian Boutle         | Met Office                       | 2026-03-06 |
+| ukmo-juan-castillo  | Juan M. Castillo   | Met Office                       | 2026-01-23 |
+| t00sa               | Sam Clarke-Green   | Met Office                       | 2026-01-20 |
+| andrewcoughtrie     | Andrew Coughtrie   | Met Office                       | 2026-01-28 |
+| oakleybrunt         | Oakley Brunt       | Met Office                       | 2025-12-19 |
+| james-bruten-mo     | James Bruten       | Met Office                       | 2025-12-09 |
+| mcdalvi             | Mohit Dalvi        | Met Office                       | 2026-01-15 |
+| mo-lucy-gordon      | Lucy Gordon        | Met Office                       | 2026-03-11 |
+| timgraham-Met       | Tim Graham         | Met Office                       | 2026-01-15 |
+| tinyendian          | Wolfgang Hayek     | Earth Sciences New Zealand       | 2026-02-02 |
+| mo-marqh            | mark Hedley        | Met Office                       | 2025-12-11 |
+| maggiehendry        | Maggie Hendry      | Met Office                       | 2026-01-29 |
+| alanjhewitt         | Alan J Hewitt      | Met Office                       | 2026-01-28 |
+| jennyhickson        | Jenny Hickson      | Met Office                       | 2025-12-10 |
+| tom-j-h             | Tom Hill           | Met Office                       | 2026-01-27 |
+| mike-hobson         | Mike Hobson        | Met Office                       | 2025-12-17 |
+| EdHone              | Ed Hone            | Met Office                       | 2026-01-26 |
+| jirudaya            | Jaffery Irudayasamy | University of Edinburgh          | 2026-03-11 |
+| cjohnson-pi         | Christine Johnson  | Met Office                       | 2026-01-19 |
+| jameskent-metoffice | James Kent         | Met Office                       | 2026-01-21 |
+| Adrian-Lock         | Adrian Lock        | Met Office                       | 2026-01-09 |
+| jasonjunweilyu      | Junwei (Jason) Lyu | Bureau of Meteorology, Australia | 2025-12-17 |
+| mo-jmanners         | James Manners      | Met Office                       | 2026-01-14 |
+| thomasmelvin        | Thomas Melvin      | Met Office                       | 2026-01-15 |
+| stevemullerworth    | Steve Mullerworth  | Met Office                       | 2026-01-28 |
+| ericaneininger      | Erica Neininger    | Met Office                       | 2026-03-02 |
+| ricky-lv426         | Ricky Olivier      | University of Exeter             | 2026-01-12 |
+| mo-alistairp        | Alistair Pirrie    | Met Office                       | 2026-01-19 |
+| yaswant             | Yaswant Pradhan    | Met Office                       | 2025-12-16 |
+| harry-shepherd      | Harry Shepherd     | Met Office                       | 2026-01-08 |
+| Pierre-siddall      | Pierre Siddall     | Met Office                       | 2026-03-02 |
+| DanStoneMO          | Daniel Stone       | Met Office                       | 2026-02-26 |
+| mo-lottieturner     | Lottie Turner      | Met Office                       | 2026-01-27 |
+| DrTVockerodtMO      | Terence Vockerodt  | Met Office                       | 2026-01-08 |
+| MetBenjaminWent     | Benjamin Went      | Met Office                       | 2026-01-15 |
+| mo-rickywong        | Ricky Wong         | Met Office                       | 2026-24-02 |

applications/adjoint_tests/rose-meta/lfric-adjoint_tests/versions.py

@@ -94,3 +94,19 @@ def upgrade(self, config, meta_config=None):
         self.add_setting(config, ["namelist:physics", "lw_segment_limit"], "32")
 
         return config, self.reports
+
+
+class vn31_t348(MacroUpgrade):
+    """Upgrade macro for ticket #348 by Ian Boutle."""
+
+    BEFORE_TAG = "vn3.1_t363"
+    AFTER_TAG = "vn3.1_t348"
+
+    def upgrade(self, config, meta_config=None):
+        # Commands From: rose-meta/lfric-gungho
+        # Use PMSL halo calculations by default
+        self.add_setting(
+            config, ["namelist:physics", "pmsl_halo_calcs"], ".true."
+        )
+
+        return config, self.reports

applications/gravity_wave/rose-meta/lfric-gravity_wave/versions.py

@@ -59,3 +59,19 @@ def upgrade(self, config, meta_config=None):
         self.add_setting(config, ["namelist:physics", "lw_segment_limit"], "32")
 
         return config, self.reports
+
+
+class vn31_t348(MacroUpgrade):
+    """Upgrade macro for ticket #348 by Ian Boutle."""
+
+    BEFORE_TAG = "vn3.1_t363"
+    AFTER_TAG = "vn3.1_t348"
+
+    def upgrade(self, config, meta_config=None):
+        # Commands From: rose-meta/lfric-gungho
+        # Use PMSL halo calculations by default
+        self.add_setting(
+            config, ["namelist:physics", "pmsl_halo_calcs"], ".true."
+        )
+
+        return config, self.reports

applications/gungho_model/rose-meta/lfric-gungho_model/versions.py

@@ -59,3 +59,19 @@ def upgrade(self, config, meta_config=None):
         self.add_setting(config, ["namelist:physics", "lw_segment_limit"], "32")
 
         return config, self.reports
+
+
+class vn31_t348(MacroUpgrade):
+    """Upgrade macro for ticket #348 by Ian Boutle."""
+
+    BEFORE_TAG = "vn3.1_t363"
+    AFTER_TAG = "vn3.1_t348"
+
+    def upgrade(self, config, meta_config=None):
+        # Commands From: rose-meta/lfric-gungho
+        # Use PMSL halo calculations by default
+        self.add_setting(
+            config, ["namelist:physics", "pmsl_halo_calcs"], ".true."
+        )
+
+        return config, self.reports

applications/jedi_lfric_tests/rose-meta/jedi_common/versions.py

@@ -94,3 +94,19 @@ def upgrade(self, config, meta_config=None):
         self.add_setting(config, ["namelist:physics", "lw_segment_limit"], "32")
 
         return config, self.reports
+
+
+class vn31_t348(MacroUpgrade):
+    """Upgrade macro for ticket #348 by Ian Boutle."""
+
+    BEFORE_TAG = "vn3.1_t363"
+    AFTER_TAG = "vn3.1_t348"
+
+    def upgrade(self, config, meta_config=None):
+        # Commands From: rose-meta/lfric-gungho
+        # Use PMSL halo calculations by default
+        self.add_setting(
+            config, ["namelist:physics", "pmsl_halo_calcs"], ".true."
+        )
+
+        return config, self.reports

applications/jedi_lfric_tests/rose-meta/jedi_forecast/versions.py

@@ -94,3 +94,19 @@ def upgrade(self, config, meta_config=None):
         self.add_setting(config, ["namelist:physics", "lw_segment_limit"], "32")
 
         return config, self.reports
+
+
+class vn31_t348(MacroUpgrade):
+    """Upgrade macro for ticket #348 by Ian Boutle."""
+
+    BEFORE_TAG = "vn3.1_t363"
+    AFTER_TAG = "vn3.1_t348"
+
+    def upgrade(self, config, meta_config=None):
+        # Commands From: rose-meta/lfric-gungho
+        # Use PMSL halo calculations by default
+        self.add_setting(
+            config, ["namelist:physics", "pmsl_halo_calcs"], ".true."
+        )
+
+        return config, self.reports

applications/jedi_lfric_tests/rose-meta/jedi_forecast_pseudo/versions.py

@@ -94,3 +94,19 @@ def upgrade(self, config, meta_config=None):
         self.add_setting(config, ["namelist:physics", "lw_segment_limit"], "32")
 
         return config, self.reports
+
+
+class vn31_t348(MacroUpgrade):
+    """Upgrade macro for ticket #348 by Ian Boutle."""
+
+    BEFORE_TAG = "vn3.1_t363"
+    AFTER_TAG = "vn3.1_t348"
+
+    def upgrade(self, config, meta_config=None):
+        # Commands From: rose-meta/lfric-gungho
+        # Use PMSL halo calculations by default
+        self.add_setting(
+            config, ["namelist:physics", "pmsl_halo_calcs"], ".true."
+        )
+
+        return config, self.reports

applications/jedi_lfric_tests/rose-meta/jedi_id_tlm_tests/versions.py

@@ -94,3 +94,19 @@ def upgrade(self, config, meta_config=None):
         self.add_setting(config, ["namelist:physics", "lw_segment_limit"], "32")
 
         return config, self.reports
+
+
+class vn31_t348(MacroUpgrade):
+    """Upgrade macro for ticket #348 by Ian Boutle."""
+
+    BEFORE_TAG = "vn3.1_t363"
+    AFTER_TAG = "vn3.1_t348"
+
+    def upgrade(self, config, meta_config=None):
+        # Commands From: rose-meta/lfric-gungho
+        # Use PMSL halo calculations by default
+        self.add_setting(
+            config, ["namelist:physics", "pmsl_halo_calcs"], ".true."
+        )
+
+        return config, self.reports

applications/jedi_lfric_tests/rose-meta/jedi_lfric_tests/versions.py

@@ -94,3 +94,19 @@ def upgrade(self, config, meta_config=None):
         self.add_setting(config, ["namelist:physics", "lw_segment_limit"], "32")
 
         return config, self.reports
+
+
+class vn31_t348(MacroUpgrade):
+    """Upgrade macro for ticket #348 by Ian Boutle."""
+
+    BEFORE_TAG = "vn3.1_t363"
+    AFTER_TAG = "vn3.1_t348"
+
+    def upgrade(self, config, meta_config=None):
+        # Commands From: rose-meta/lfric-gungho
+        # Use PMSL halo calculations by default
+        self.add_setting(
+            config, ["namelist:physics", "pmsl_halo_calcs"], ".true."
+        )
+
+        return config, self.reports

applications/jedi_lfric_tests/rose-meta/jedi_tlm_forecast_tl/versions.py

@@ -94,3 +94,19 @@ def upgrade(self, config, meta_config=None):
         self.add_setting(config, ["namelist:physics", "lw_segment_limit"], "32")
 
         return config, self.reports
+
+
+class vn31_t348(MacroUpgrade):
+    """Upgrade macro for ticket #348 by Ian Boutle."""
+
+    BEFORE_TAG = "vn3.1_t363"
+    AFTER_TAG = "vn3.1_t348"
+
+    def upgrade(self, config, meta_config=None):
+        # Commands From: rose-meta/lfric-gungho
+        # Use PMSL halo calculations by default
+        self.add_setting(
+            config, ["namelist:physics", "pmsl_halo_calcs"], ".true."
+        )
+
+        return config, self.reports

applications/jedi_lfric_tests/rose-meta/jedi_tlm_tests/versions.py

@@ -94,3 +94,19 @@ def upgrade(self, config, meta_config=None):
         self.add_setting(config, ["namelist:physics", "lw_segment_limit"], "32")
 
         return config, self.reports
+
+
+class vn31_t348(MacroUpgrade):
+    """Upgrade macro for ticket #348 by Ian Boutle."""
+
+    BEFORE_TAG = "vn3.1_t363"
+    AFTER_TAG = "vn3.1_t348"
+
+    def upgrade(self, config, meta_config=None):
+        # Commands From: rose-meta/lfric-gungho
+        # Use PMSL halo calculations by default
+        self.add_setting(
+            config, ["namelist:physics", "pmsl_halo_calcs"], ".true."
+        )
+
+        return config, self.reports

applications/jules/rose-meta/lfric-jules/versions.py

@@ -59,3 +59,19 @@ def upgrade(self, config, meta_config=None):
         self.add_setting(config, ["namelist:physics", "lw_segment_limit"], "32")
 
         return config, self.reports
+
+
+class vn31_t348(MacroUpgrade):
+    """Upgrade macro for ticket #348 by Ian Boutle."""
+
+    BEFORE_TAG = "vn3.1_t363"
+    AFTER_TAG = "vn3.1_t348"
+
+    def upgrade(self, config, meta_config=None):
+        # Commands From: rose-meta/lfric-gungho
+        # Use PMSL halo calculations by default
+        self.add_setting(
+            config, ["namelist:physics", "pmsl_halo_calcs"], ".true."
+        )
+
+        return config, self.reports

applications/lfric2lfric/rose-meta/lfric-lfric2lfric/versions.py

@@ -78,3 +78,19 @@ def upgrade(self, config, meta_config=None):
         self.add_setting(config, ["namelist:physics", "lw_segment_limit"], "32")
 
         return config, self.reports
+
+
+class vn31_t348(MacroUpgrade):
+    """Upgrade macro for ticket #348 by Ian Boutle."""
+
+    BEFORE_TAG = "vn3.1_t363"
+    AFTER_TAG = "vn3.1_t348"
+
+    def upgrade(self, config, meta_config=None):
+        # Commands From: rose-meta/lfric-gungho
+        # Use PMSL halo calculations by default
+        self.add_setting(
+            config, ["namelist:physics", "pmsl_halo_calcs"], ".true."
+        )
+
+        return config, self.reports

applications/lfric_atm/rose-meta/lfric-lfric_atm/versions.py

@@ -59,3 +59,19 @@ def upgrade(self, config, meta_config=None):
         self.add_setting(config, ["namelist:physics", "lw_segment_limit"], "32")
 
         return config, self.reports
+
+
+class vn31_t348(MacroUpgrade):
+    """Upgrade macro for ticket #348 by Ian Boutle."""
+
+    BEFORE_TAG = "vn3.1_t363"
+    AFTER_TAG = "vn3.1_t348"
+
+    def upgrade(self, config, meta_config=None):
+        # Commands From: rose-meta/lfric-gungho
+        # Use PMSL halo calculations by default
+        self.add_setting(
+            config, ["namelist:physics", "pmsl_halo_calcs"], ".true."
+        )
+
+        return config, self.reports

applications/lfric_coupled/rose-meta/lfric-lfric_coupled/versions.py

@@ -59,3 +59,19 @@ def upgrade(self, config, meta_config=None):
         self.add_setting(config, ["namelist:physics", "lw_segment_limit"], "32")
 
         return config, self.reports
+
+
+class vn31_t348(MacroUpgrade):
+    """Upgrade macro for ticket #348 by Ian Boutle."""
+
+    BEFORE_TAG = "vn3.1_t363"
+    AFTER_TAG = "vn3.1_t348"
+
+    def upgrade(self, config, meta_config=None):
+        # Commands From: rose-meta/lfric-gungho
+        # Use PMSL halo calculations by default
+        self.add_setting(
+            config, ["namelist:physics", "pmsl_halo_calcs"], ".true."
+        )
+
+        return config, self.reports

applications/linear_model/rose-meta/lfric-linear_model/versions.py

@@ -59,3 +59,19 @@ def upgrade(self, config, meta_config=None):
         self.add_setting(config, ["namelist:physics", "lw_segment_limit"], "32")
 
         return config, self.reports
+
+
+class vn31_t348(MacroUpgrade):
+    """Upgrade macro for ticket #348 by Ian Boutle."""
+
+    BEFORE_TAG = "vn3.1_t363"
+    AFTER_TAG = "vn3.1_t348"
+
+    def upgrade(self, config, meta_config=None):
+        # Commands From: rose-meta/lfric-gungho
+        # Use PMSL halo calculations by default
+        self.add_setting(
+            config, ["namelist:physics", "pmsl_halo_calcs"], ".true."
+        )
+
+        return config, self.reports