feat: aether cubed sphere model_mod

.gitignore

@@ -94,6 +94,7 @@ streamflow_obs_diag
 cam_dart_obs_preprocessor
 aether_to_dart
 dart_to_aether
+test_aether_grid
 
 # Observation converter exectutables
 convert_aviso

CHANGELOG.rst

@@ -22,6 +22,11 @@ individual files.
 
 The changes are now listed with the most recent at the top.
 
+**November 11 2025 :: Aether Cube Sphere. Tag v11.18.0**
+
+- Aether cube sphere interface added to DART.
+- SLANT_GPS_VTEC QTY and obs_def
+
 **November 3 2025 :: DART tutorial. Tag 11.17.0**
 
 - DART tutorial updated to QCEFF v11

assimilation_code/modules/observations/default_quantities_mod.f90

@@ -131,6 +131,7 @@
 !   QTY_GEOMETRIC_HEIGHT
 !   QTY_GEOPOTENTIAL_HEIGHT
 !   QTY_GND_GPS_VTEC
+!   QTY_SLANT_GPS_VTEC
 !   QTY_GPSRO
 !   QTY_GRAUPEL_MIXING_RATIO
 !   QTY_GRAUPEL_NUMBER_CONCENTR

assimilation_code/modules/observations/space_quantities_mod.f90

@@ -111,6 +111,7 @@
 !   QTY_VELOCITY_VERTICAL_N4S
 !   QTY_VELOCITY_VERTICAL_NO
 !   QTY_GND_GPS_VTEC
+!   QTY_SLANT_GPS_VTEC
 !
 ! END DART PREPROCESS QUANTITY DEFINITIONS
 

conf.py

@@ -21,7 +21,7 @@
 author = 'Data Assimilation Research Section'
 
 # The full version, including alpha/beta/rc tags
-release = '11.17.0'
+release = '11.18.0'
 root_doc = 'index'
 
 # -- General configuration ---------------------------------------------------

index.rst

@@ -392,6 +392,7 @@ References
 
    models/9var/readme
    models/aether_lat-lon/readme
+   models/aether_cube_sphere/readme
    models/am2/readme
    models/bgrid_solo/readme
    models/cam-fv/readme

models/README.rst

@@ -6,6 +6,8 @@ Supported Models
 DART supported models:
 
 - :doc:`9var/readme`
+- :doc:`aether_lat-lon/readme`
+- :doc:`aether_cube_sphere/readme`
 - :doc:`am2/readme`
 - :doc:`bgrid_solo/readme`
 - :doc:`cam-fv/readme`

models/aether_cube_sphere/aether_to_dart.f90

@@ -0,0 +1,46 @@
+! DART software - Copyright UCAR. This open source software is provided
+! by UCAR, "as is", without charge, subject to all terms of use at
+! http://www.image.ucar.edu/DAReS/DART/DART_download
+
+! Converts aether restart block files to a DART filter input file
+
+program aether_to_dart
+
+use       utilities_mod, only : initialize_utilities, finalize_utilities, &
+                                find_namelist_in_file, check_namelist_read
+
+use transform_state_mod, only : initialize_transform_state_mod, model_to_dart, &
+                                get_ensemble_range_from_command_line
+
+implicit none
+
+character(len=256) :: aether_file_directory, dart_file_directory
+
+namelist /aether_to_dart_nml / aether_file_directory, dart_file_directory
+
+integer :: iunit, io
+integer :: ens, start_ens, end_ens
+
+!----------------------------------------------------------------
+
+call initialize_utilities(progname='aether_to_dart')
+
+! Read the namelist
+call find_namelist_in_file('input.nml', 'aether_to_dart_nml', iunit)
+read(iunit, nml = aether_to_dart_nml, iostat = io)
+call check_namelist_read(iunit, io, 'aether_to_dart_nml')
+
+call initialize_transform_state_mod()
+
+! Do the conversion for a range of ensemble members
+call get_ensemble_range_from_command_line(start_ens, end_ens)
+
+! The DART SE team has pointed out concerns about having the loop in the program
+! Loop through the ensemble members and transform each
+do ens = start_ens, end_ens
+   call model_to_dart(aether_file_directory, dart_file_directory, ens)
+end do
+
+call finalize_utilities('aether_to_dart')
+
+end program aether_to_dart

models/aether_cube_sphere/create_obs_sequence.input

@@ -0,0 +1,58 @@
+6
+0
+0
+0
+SAT_TEMPERATURE
+3
+110000
+90
+45
+0 0
+1.2
+0
+SAT_DENSITY_ION_O2P
+3
+180000
+90
+-45
+0 0
+1.3
+0
+SAT_DENSITY_ION_N2P
+3
+250000
+270
+30
+0 0
+1.4
+0
+SAT_DENSITY_NEUTRAL_O2
+3
+350000
+270 
+-30
+0 0
+1.5
+0
+GND_GPS_VTEC
+-2
+180
+60
+0 0
+0.1
+0
+SLANT_GPS_VTEC
+160
+50
+345678
+170
+45
+111
+-2
+180
+-10
+0 0
+0.25
+obs_seq.in
+
+