add number_of_days_in_year and maximum_time_step standard variables; add global_constant builtin model

include/standard_variable_assignments.h

@@ -209,6 +209,14 @@ self%longitude%units = 'degree_east'
 self%longitude%cf_names = 'longitude'
 call add(self%longitude)
 
+self%maximum_time_step%name = 'maximum_time_step'
+self%maximum_time_step%units = 's'
+call add(self%maximum_time_step)
+
+self%number_of_days_in_year%name = 'number_of_days_in_year'
+self%number_of_days_in_year%units = 'd'
+call add(self%number_of_days_in_year)
+
 self%number_of_days_since_start_of_the_year%name = 'number_of_days_since_start_of_the_year'
 self%number_of_days_since_start_of_the_year%units = 'd'
 call add(self%number_of_days_since_start_of_the_year)

include/standard_variables.h

@@ -52,6 +52,8 @@ type (type_horizontal_standard_variable) :: latitude
 type (type_horizontal_standard_variable) :: longitude
 
 ! Global variables
+type (type_global_standard_variable) :: maximum_time_step
+type (type_global_standard_variable) :: number_of_days_in_year
 type (type_global_standard_variable) :: number_of_days_since_start_of_the_year
 
 ! Universal variables

src/builtin/constant.F90

@@ -31,6 +31,11 @@ module fabm_builtin_constant
       procedure :: initialize => bottom_constant_initialize
    end type
 
+   type, extends(type_base_model), public :: type_global_constant
+   contains
+      procedure :: initialize => global_constant_initialize
+   end type
+
 contains
 
    subroutine interior_constant_initialize(self, configunit)
@@ -117,4 +122,25 @@ subroutine bottom_constant_initialize(self, configunit)
       end if
    end subroutine bottom_constant_initialize
 
+   subroutine global_constant_initialize(self, configunit)
+      class (type_global_constant), intent(inout), target :: self
+      integer,                      intent(in)            :: configunit
+
+      real(rk)                             :: value
+      type (type_global_standard_variable) :: standard_variable
+
+      call self%register_implemented_routines()
+      call self%get_parameter(standard_variable%name, 'standard_name', '', 'standard name', default='')
+      call self%get_parameter(value, 'value', '', 'value')
+      if (standard_variable%name /= '') then
+         ! Note: for Cray 8.3.7, standard_variable needs to be declared separately.
+         ! It cannot be constructed on the fly within the function call
+         call self%add_scalar_variable('data', '', 'data', fill_value=value, &
+            output=output_none, source=source_constant, standard_variable=standard_variable)
+      else
+         call self%add_scalar_variable('data', '', 'data', fill_value=value, &
+            output=output_none, source=source_constant)
+      end if
+   end subroutine global_constant_initialize
+
 end module

src/builtin/model_library.F90

@@ -67,6 +67,7 @@ subroutine create(self,name,model)
          case ('horizontal_constant');      allocate(type_horizontal_constant::model)
          case ('bottom_constant');          allocate(type_bottom_constant::model)
          case ('surface_constant');         allocate(type_surface_constant::model)
+         case ('global_constant');          allocate(type_global_constant::model)
          case ('surface_flux');             allocate(type_constant_surface_flux::model)
          case ('constant_surface_flux');    allocate(type_constant_surface_flux::model)
          case ('external_surface_flux');    allocate(type_external_surface_flux::model)

src/fabm_job.F90

@@ -1478,7 +1478,7 @@ subroutine job_manager_initialize(self, variable_register, schedules, log_unit,
          node => node%next
       end do
 
-      ! If we have unfulfilled dependneices, stop here and let the host/user deal with them.
+      ! If we have unfulfilled dependencies, stop here and let the host/user deal with them.
       if (associated(variable_register%unfulfilled_dependencies%first)) return
 
       variable_register%read_cache%frozen = .true.

src/fabm_types.F90

@@ -2037,15 +2037,15 @@ subroutine add_horizontal_variable(self, name, units, long_name, missing_value,
    end subroutine add_horizontal_variable
 
    subroutine add_scalar_variable(self, name, units, long_name, missing_value, minimum, maximum, initial_value, &
-                                  background_value, fill_value, standard_variable, presence, output, &
+                                  background_value, fill_value, standard_variable, presence, output, source, &
                                   read_index, state_index, write_index, sms_index, background, link)
       class (type_base_model),target,      intent(inout)        :: self
       character(len=*),                    intent(in)           :: name
       character(len=*),                    intent(in), optional :: units, long_name
       real(rk),                            intent(in), optional :: minimum, maximum, missing_value
       real(rk),                            intent(in), optional :: initial_value, background_value, fill_value
       class (type_base_standard_variable), intent(in), optional :: standard_variable
-      integer,                             intent(in), optional :: presence, output
+      integer,                             intent(in), optional :: presence, output, source
       integer,  target,                                optional :: read_index, state_index, write_index, sms_index
       real(rk), target,                                optional :: background
       type (type_link), pointer,                       optional :: link
@@ -2057,7 +2057,7 @@ subroutine add_scalar_variable(self, name, units, long_name, missing_value, mini
 
       ! Process remainder of fields and creation of link generically (i.e., irrespective of variable domain).
       call add_variable(self, variable, name, units, long_name, missing_value, minimum, maximum, &
-                        initial_value, background_value, fill_value, standard_variable, presence, output, source_unknown, &
+                        initial_value, background_value, fill_value, standard_variable, presence, output, source, &
                         .false., read_index, state_index, write_index, background, link)
    end subroutine add_scalar_variable
 

util/standard_variables/variables.yaml

@@ -100,6 +100,10 @@ horizontal:
 global:
   - name: number_of_days_since_start_of_the_year
     units: d
+  - name: number_of_days_in_year
+    units: d
+  - name: maximum_time_step
+    units: s
 universal:
   - name: total_carbon
     units: mmol m-3