diff --git a/src/ecom/common/om_multio_utils_v3_mod.F90 b/src/ecom/common/om_multio_utils_v3_mod.F90
index b1b1d5bd..e8cc4682 100644
--- a/src/ecom/common/om_multio_utils_v3_mod.F90
+++ b/src/ecom/common/om_multio_utils_v3_mod.F90
@@ -284,7 +284,7 @@ SUBROUTINE MULTIO_WRITE_PARAMETRIZATION( MIO_HANDLE, MODEL_PARAMS )
   ! Symbols imported from other modules within the project.
   USE :: OM_CORE_MOD, ONLY: JPIB_K
   USE :: OM_CORE_MOD, ONLY: JPIM_K
-  USE :: OM_API_MOD,  ONLY: MODEL_PAR_T
+  USE :: OM_CORE_MOD,  ONLY: MODEL_PAR_T
 
   ! Symbols imported from other libraries
   USE :: GRIB_API,   ONLY: GRIB_SUCCESS
@@ -329,24 +329,27 @@ SUBROUTINE MULTIO_WRITE_PARAMETRIZATION( MIO_HANDLE, MODEL_PARAMS )
   ERR = MIOMD%SET('generatingProcessIdentifier', MODEL_PARAMS%SIM_%NCYCLE )
   PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
 
-  ERR = MIOMD%SET('iterationNumber', MODEL_PARAMS%SIM_%NJITER)
-  PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
   ERR = MIOMD%SET('sensitiveAreaDomain', MODEL_PARAMS%SIM_%NJDOMAI)
   PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
-  ERR = MIOMD%SET('diagnosticNumber', MODEL_PARAMS%SIM_%NJDIAG)
-  PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
   ! TODO look at mars_preset_utils_mod.F90 to see how this is used for ccccIdentifiers and consensusCount
   ! ERR = MIOMD%SET('', MODEL_PARAMS%SIM_%NDWD)
   ! ERR = MIOMD%SET('', MODEL_PARAMS%SIM_%NMFR)
   ! ERR = MIOMD%SET('', MODEL_PARAMS%SIM_%NNCEP)
   ! ERR = MIOMD%SET('', MODEL_PARAMS%SIM_%NUKM)
-  ERR = MIOMD%SET('perturbationNumber', MODEL_PARAMS%SIM_%NENSFNB)
-  PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
+  ! TODO set all the following fields only if numberOfForecastsInEnsemble is positive ???
   ERR = MIOMD%SET('numberOfForecastsInEnsemble', MODEL_PARAMS%SIM_%NTOTENS)
   PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
+  ERR = MIOMD%SET('perturbationNumber', MODEL_PARAMS%SIM_%NENSFNB)
+  PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
   ERR = MIOMD%SET('systemNumber', MODEL_PARAMS%SIM_%NSYSTEM)
   PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
   ERR = MIOMD%SET('methodNumber', MODEL_PARAMS%SIM_%NMETHOD)
+  PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
+  ERR = MIOMD%SET('iterationNumber', MODEL_PARAMS%SIM_%NJITER)
+  PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
+  ERR = MIOMD%SET('diagnosticNumber', MODEL_PARAMS%SIM_%NJDIAG)
+  PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
+  
   PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
   ERR = MIOMD%SET('referenceDate', MODEL_PARAMS%SIM_%NREFERENCE)
   PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
@@ -360,6 +363,13 @@ SUBROUTINE MULTIO_WRITE_PARAMETRIZATION( MIO_HANDLE, MODEL_PARAMS )
   PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
   ERR = MIOMD%SET('stream', MODEL_PARAMS%SIM_%NSTREAM)
   PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
+  
+  ERR = MIOMD%SET('date', MODEL_PARAMS%SIM_%NINDAT)
+  PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
+  ERR = MIOMD%SET('timeInSeconds', MODEL_PARAMS%SIM_%NSSSSS)
+  PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
+  ERR = MIOMD%SET('timeIncrementInSeconds', MODEL_PARAMS%SIM_%TSTEP)
+  PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
 
   ! TODO WRITE as array
   ERR = MIO_HANDLE%WRITE_PARAMETRIZATION('pv', MODEL_PARAMS%GEO_%ZVERT(1:2*(MODEL_PARAMS%GEO_%IFLEV+1)))
@@ -439,7 +449,7 @@ SUBROUTINE MULTIO_WRITE_PARAMETRIZATION( MIO_HANDLE, MODEL_PARAMS )
         LON_STRET_DEG = 180._JPRD_K/(2.0_JPRD_K*ASIN(1.0_JPRD_K))*REAL(YPI%RLOCEN,JPRD_K)
 
         IF( YPI%NSTTYP .GE. 2 ) THEN
-          ERR = MIOMD%SET('gridType','stretched_rotated_sh')
+          ERR = MIOMD%SET('sphericalHarmonicsType','stretched_rotated_sh')
           PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
           ERR = MIOMD%SET('latitudeOfStretchingPoleInDegrees', LAT_STRET_DEG )
           PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
@@ -448,13 +458,13 @@ SUBROUTINE MULTIO_WRITE_PARAMETRIZATION( MIO_HANDLE, MODEL_PARAMS )
           ERR = MIOMD%SET('stretchingFactor',YPI%RSTRET)
           PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
         ELSEIF( ABS(YPI%RSTRET-1.0_JPRD_K) .GE. 1.E-14_JPRD_K ) THEN
-          ERR = MIOMD%SET('gridType', 'stretched_sh' )
+          ERR = MIOMD%SET('sphericalHarmonicsType', 'stretched_sh' )
           PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
           ERR = MIOMD%SET('stretchingFactor', YPI%RSTRET )
           PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
         ELSE
 
-          ERR = MIOMD%SET('gridType','sh')
+          ERR = MIOMD%SET('sphericalHarmonicsType','sh')
           PP_DEBUG_CRITICAL_COND_THROW( ERR.NE.MULTIO_SUCCESS,  1 )
 
         ENDIF
diff --git a/src/ecom/core/om_data_types_mod.F90 b/src/ecom/core/om_data_types_mod.F90
index b9fcb80d..059e2d3b 100644
--- a/src/ecom/core/om_data_types_mod.F90
+++ b/src/ecom/core/om_data_types_mod.F90
@@ -123,7 +123,7 @@ MODULE OM_DATA_TYPES_MOD
 
 
   ! yomrip0.F90 - time related quantities
-  ! NINDAT : run initial date in the form AAAAMMDD
+  ! NINDAT : run initial date in the form YYYYMMDD
   INTEGER(KIND=JPIB_K) :: NINDAT
 
   ! NSSSSS : initial time in seconds (e.g. for 12h, 43200)
diff --git a/src/ecom/encoders/utils/preset/time_preset_utils_mod.F90 b/src/ecom/encoders/utils/preset/time_preset_utils_mod.F90
index 8758eda5..41d985a0 100644
--- a/src/ecom/encoders/utils/preset/time_preset_utils_mod.F90
+++ b/src/ecom/encoders/utils/preset/time_preset_utils_mod.F90
@@ -245,4 +245,4 @@ END SUBROUTINE TIME_PRESET_GRIBX_ATM
 END MODULE TIME_PRESET_UTILS_MOD
 #undef PP_SECTION_NAME
 #undef PP_SECTION_TYPE
-#undef PP_FILE_NAME
\ No newline at end of file
+#undef PP_FILE_NAME