Adds MAM4xx: Aerosol wet scavenging interface

cime_config/tests.py

@@ -724,6 +724,7 @@
         "tests" : (
             "SMS_D_Ln5.ne4pg2_oQU480.F2010-SCREAMv1-MPASSI.scream-mam4xx-optics",
             "SMS_D_Ln5.ne4pg2_oQU480.F2010-SCREAMv1-MPASSI.scream-mam4xx-aci",
+            "SMS_D_Ln5.ne4pg2_oQU480.F2010-SCREAMv1-MPASSI.scream-mam4xx-wetscav",
         )
     },
 

components/eamxx/cime_config/namelist_defaults_scream.xml

@@ -261,6 +261,10 @@ be lost if SCREAM_HACK_XML is not enabled.
       <mam4_mom_physical_properties_file type="file" doc="File containing optical properties for marine organic aerosol">${DIN_LOC_ROOT}/atm/scream/mam4xx/physprops/poly_rrtmg_c20240206.nc</mam4_mom_physical_properties_file>
     </mam4_optics>
 
+    <!-- MAM4xx-Wetscav -->
+    <mam4_wetscav inherit="atm_proc_base">
+    </mam4_wetscav>
+
     <!-- nudging -->
     <nudging inherit="atm_proc_base">
       <nudging_filenames_patterns type="array(string)"/>
@@ -490,7 +494,7 @@ be lost if SCREAM_HACK_XML is not enabled.
     <surf_mom_flux     type="array(real)">0.0,0.0</surf_mom_flux>
     <!-- Note: MAM4xx-ACI needs dry aerosol diameter (dgnum), currently set to aitken model nominal diameter, remove it once all of MAM4xx is integrated -->
     <dgnum type="real" doc="Dry aerosol particles diameter in meters">2.6e-08</dgnum>
-        <bc_c1 type="real">0.0</bc_c1>
+    <bc_c1 type="real">0.0</bc_c1>
     <bc_c3 type="real">0.0</bc_c3>
     <bc_c4 type="real">0.0</bc_c4>
     <dst_c1 type="real">0.0</dst_c1>
@@ -515,6 +519,15 @@ be lost if SCREAM_HACK_XML is not enabled.
     <num_c2 type="real">0.0</num_c2>
     <num_c3 type="real">0.0</num_c3>
     <num_c4 type="real">0.0</num_c4>
+    <!-- Surface fluxes for the land model from MAM4xx wet scavenging-->
+    <wetdep_hydrophilic_bc type="real">1e-5</wetdep_hydrophilic_bc>
+    <drydep_hydrophilic_bc type="real">1e-5</drydep_hydrophilic_bc>
+    <wetdep_hydrophilic_oc type="real">1e-5</wetdep_hydrophilic_oc>
+    <drydep_hydrophilic_oc type="real">1e-5</drydep_hydrophilic_oc>
+    <wetdep_dust_bin1 type="real">1e-5</wetdep_dust_bin1>
+    <wetdep_dust_bin2 type="real">1e-5</wetdep_dust_bin2>
+    <wetdep_dust_bin3 type="real">1e-5</wetdep_dust_bin3>
+    <wetdep_dust_bin4 type="real">1e-5</wetdep_dust_bin4>
     <!-- default ne1024 initial condition files do not have these, so init to zero here -->
     <!-- TODO: delete this once we can tell the AD that some fields can be inited by procs -->
     <qc hgrid="ne256np4|ne1024np4">0.0</qc>

components/eamxx/cime_config/testdefs/testmods_dirs/scream/mam4xx/aci/shell_commands

@@ -1,7 +1,9 @@
 
-#Default scream has 10 tracers, MAM4xx adds another 31 making a total of 41 tracer
-#Set total number of tracers to 41. We are using append here as last entry wins while parsing xml options
-./xmlchange --append SCREAM_CMAKE_OPTIONS="SCREAM_NUM_TRACERS 41"
+#------------------------------------------------------
+# MAM4xx adds additionaltracers to the simulation
+# Increase number of tracers for MAM4xx simulations
+#------------------------------------------------------
+$CIMEROOT/../components/eamxx/cime_config/testdefs/testmods_dirs/scream/mam4xx/update_eamxx_num_tracers.sh
 
 #modify initial condition file to get aerosol species ICs
 $CIMEROOT/../components/eamxx/scripts/atmchange initial_conditions::Filename='$DIN_LOC_ROOT/atm/scream/init/screami_mam4xx_ne4np4L72_c20240208.nc' -b

components/eamxx/cime_config/testdefs/testmods_dirs/scream/mam4xx/optics/shell_commands

@@ -1,7 +1,8 @@
-
-#Default scream has 10 tracers, MAM4xx adds another 31 making a total of 41 tracer
-#Set total number of tracers to 41. We are using append here as last entry wins while parsing xml options
-./xmlchange --append SCREAM_CMAKE_OPTIONS="SCREAM_NUM_TRACERS 41"
+#------------------------------------------------------
+# MAM4xx adds additionaltracers to the simulation
+# Increase number of tracers for MAM4xx simulations
+#------------------------------------------------------
+$CIMEROOT/../components/eamxx/cime_config/testdefs/testmods_dirs/scream/mam4xx/update_eamxx_num_tracers.sh
 
 $CIMEROOT/../components/eamxx/scripts/atmchange initial_conditions::Filename='$DIN_LOC_ROOT/atm/scream/init/screami_mam4xx_ne4np4L72_c20240208.nc' -b
 $CIMEROOT/../components/eamxx/scripts/atmchange physics::atm_procs_list="mac_aero_mic,mam4_optics,rrtmgp" -b

components/eamxx/cime_config/testdefs/testmods_dirs/scream/mam4xx/update_eamxx_num_tracers.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+#------------------------------------------------------
+# MAM4xx adds additional tracers to the simulation
+# Increase number of tracers for MAM4xx simulations
+#------------------------------------------------------
+
+# Additional MAM4xx tracers (MAM4xx adds 31 tracers)
+ADDITIONAL_MAM4xx_TRACERS=31
+
+# Original CMAKE options in env_build.xml
+orig_cmake_opt=`./xmlquery --value SCREAM_CMAKE_OPTIONS`
+
+# Extract the number of tracers
+orig_tracer_num=$(echo $orig_cmake_opt | grep -oP 'SCREAM_NUM_TRACERS \K[0-9]+')
+
+# Update number of tracers
+new_tracer_num=$((orig_tracer_num + ADDITIONAL_MAM4xx_TRACERS))
+
+# Form the new CMake options string by replacing the original number with the new number
+new_cmake_opt=$(echo $orig_cmake_opt | sed "s/SCREAM_NUM_TRACERS $orig_tracer_num/SCREAM_NUM_TRACERS $new_tracer_num/")
+
+# Update cmake options string
+`./xmlchange  SCREAM_CMAKE_OPTIONS="$new_cmake_opt"`

components/eamxx/cime_config/testdefs/testmods_dirs/scream/mam4xx/wetscav/shell_commands

@@ -0,0 +1,13 @@
+#!/bin/sh
+#------------------------------------------------------
+# MAM4xx adds additionaltracers to the simulation
+# Increase number of tracers for MAM4xx simulations
+#------------------------------------------------------
+
+$CIMEROOT/../components/eamxx/cime_config/testdefs/testmods_dirs/scream/mam4xx/update_eamxx_num_tracers.sh -b
+
+#------------------------------------------------------
+#Update IC file and add wetscav process
+#------------------------------------------------------
+$CIMEROOT/../components/eamxx/scripts/atmchange initial_conditions::Filename='$DIN_LOC_ROOT/atm/scream/init/screami_mam4xx_ne4np4L72_c20240208.nc' -b
+$CIMEROOT/../components/eamxx/scripts/atmchange physics::atm_procs_list="mac_aero_mic,mam4_wetscav,rrtmgp" -b

components/eamxx/src/physics/mam/CMakeLists.txt

@@ -43,7 +43,8 @@ add_subdirectory(${EXTERNALS_SOURCE_DIR}/mam4xx ${CMAKE_BINARY_DIR}/externals/ma
 add_library(mam
   eamxx_mam_microphysics_process_interface.cpp
   eamxx_mam_optics_process_interface.cpp
-  eamxx_mam_aci_process_interface.cpp)
+  eamxx_mam_aci_process_interface.cpp
+  eamxx_mam_wetscav_process_interface.cpp)
 target_compile_definitions(mam PUBLIC EAMXX_HAS_MAM)
 add_dependencies(mam mam4xx)
 target_include_directories(mam PUBLIC