diff --git a/src/LIB/SURCOUCHE/src/modd_field.f90 b/src/LIB/SURCOUCHE/src/modd_field.f90
index b81b59f1f0354c2041f9908b0d3c7fb7230e0f3d..cf3e014068caca76b99fbcba63b96680894a39d6 100644
--- a/src/LIB/SURCOUCHE/src/modd_field.f90
+++ b/src/LIB/SURCOUCHE/src/modd_field.f90
@@ -12,6 +12,7 @@
 !  P. Wautelet 27/01/2020: create the tfield_metadata_base abstract datatype
 !  P. Wautelet 14/09/2020: add ndimlist field to tfield_metadata_base
 !  P. Wautelet 10/11/2020: new data structures for netCDF dimensions
+!  P. Wautelet 08/10/2021: add 2 new dimensions: LW_bands (NMNHDIM_NLWB) and SW_bands (NMNHDIM_NSWB)
 !-----------------------------------------------------------------
 module modd_field
 
@@ -42,49 +43,52 @@ integer, parameter :: NMNHDIM_TIME                = 9
 
 integer, parameter :: NMNHDIM_ONE                 = 10
 
-integer, parameter :: NMNHDIM_LASTDIM_NODIACHRO   = 10  ! Index of the last defined dimension for non-diachronic files
+integer, parameter :: NMNHDIM_NSWB                = 11
+integer, parameter :: NMNHDIM_NLWB                = 12
 
-integer, parameter :: NMNHDIM_COMPLEX             = 11
+integer, parameter :: NMNHDIM_LASTDIM_NODIACHRO   = 12 ! Index of the last defined dimension for non-diachronic files
 
-integer, parameter :: NMNHDIM_BUDGET_CART_NI      = 12
-integer, parameter :: NMNHDIM_BUDGET_CART_NJ      = 13
-integer, parameter :: NMNHDIM_BUDGET_CART_NI_U    = 14
-integer, parameter :: NMNHDIM_BUDGET_CART_NJ_U    = 15
-integer, parameter :: NMNHDIM_BUDGET_CART_NI_V    = 16
-integer, parameter :: NMNHDIM_BUDGET_CART_NJ_V    = 17
-integer, parameter :: NMNHDIM_BUDGET_CART_LEVEL   = 18
-integer, parameter :: NMNHDIM_BUDGET_CART_LEVEL_W = 19
+integer, parameter :: NMNHDIM_COMPLEX             = 13
 
-integer, parameter :: NMNHDIM_BUDGET_MASK_LEVEL   = 20
-integer, parameter :: NMNHDIM_BUDGET_MASK_LEVEL_W = 21
-integer, parameter :: NMNHDIM_BUDGET_MASK_NBUMASK = 22
+integer, parameter :: NMNHDIM_BUDGET_CART_NI      = 14
+integer, parameter :: NMNHDIM_BUDGET_CART_NJ      = 15
+integer, parameter :: NMNHDIM_BUDGET_CART_NI_U    = 16
+integer, parameter :: NMNHDIM_BUDGET_CART_NJ_U    = 17
+integer, parameter :: NMNHDIM_BUDGET_CART_NI_V    = 18
+integer, parameter :: NMNHDIM_BUDGET_CART_NJ_V    = 19
+integer, parameter :: NMNHDIM_BUDGET_CART_LEVEL   = 20
+integer, parameter :: NMNHDIM_BUDGET_CART_LEVEL_W = 21
 
-integer, parameter :: NMNHDIM_BUDGET_TIME         = 23
+integer, parameter :: NMNHDIM_BUDGET_MASK_LEVEL   = 22
+integer, parameter :: NMNHDIM_BUDGET_MASK_LEVEL_W = 23
+integer, parameter :: NMNHDIM_BUDGET_MASK_NBUMASK = 24
 
-integer, parameter :: NMNHDIM_BUDGET_LES_TIME     = 24
-integer, parameter :: NMNHDIM_BUDGET_LES_AVG_TIME = 25
-integer, parameter :: NMNHDIM_BUDGET_LES_LEVEL    = 26
-integer, parameter :: NMNHDIM_BUDGET_LES_SV       = 27
-integer, parameter :: NMNHDIM_BUDGET_LES_PDF      = 28
+integer, parameter :: NMNHDIM_BUDGET_TIME         = 25
+
+integer, parameter :: NMNHDIM_BUDGET_LES_TIME     = 26
+integer, parameter :: NMNHDIM_BUDGET_LES_AVG_TIME = 27
+integer, parameter :: NMNHDIM_BUDGET_LES_LEVEL    = 28
+integer, parameter :: NMNHDIM_BUDGET_LES_SV       = 29
+integer, parameter :: NMNHDIM_BUDGET_LES_PDF      = 30
 integer, parameter :: NMNHDIM_BUDGET_LES_MASK     = 100 ! This is not a true dimension
 
-integer, parameter :: NMNHDIM_SPECTRA_2PTS_NI     = 29
-integer, parameter :: NMNHDIM_SPECTRA_2PTS_NJ     = 30
-integer, parameter :: NMNHDIM_SPECTRA_SPEC_NI     = 31
-integer, parameter :: NMNHDIM_SPECTRA_SPEC_NJ     = 32
-integer, parameter :: NMNHDIM_SPECTRA_LEVEL       = 33
+integer, parameter :: NMNHDIM_SPECTRA_2PTS_NI     = 31
+integer, parameter :: NMNHDIM_SPECTRA_2PTS_NJ     = 32
+integer, parameter :: NMNHDIM_SPECTRA_SPEC_NI     = 33
+integer, parameter :: NMNHDIM_SPECTRA_SPEC_NJ     = 34
+integer, parameter :: NMNHDIM_SPECTRA_LEVEL       = 35
 
-integer, parameter :: NMNHDIM_SERIES_LEVEL        = 34
-integer, parameter :: NMNHDIM_SERIES_LEVEL_W      = 35
-integer, parameter :: NMNHDIM_SERIES_TIME         = 36  ! Time dimension for time series
+integer, parameter :: NMNHDIM_SERIES_LEVEL        = 36
+integer, parameter :: NMNHDIM_SERIES_LEVEL_W      = 37
+integer, parameter :: NMNHDIM_SERIES_TIME         = 38  ! Time dimension for time series
 
-integer, parameter :: NMNHDIM_FLYER_TIME          = 37  ! Time dimension for aircraft/balloon (dimension local to each flyer)
-integer, parameter :: NMNHDIM_PROFILER_TIME       = 38  ! Time dimension for profilers
-integer, parameter :: NMNHDIM_STATION_TIME        = 39  ! Time dimension for stations
+integer, parameter :: NMNHDIM_FLYER_TIME          = 39  ! Time dimension for aircraft/balloon (dimension local to each flyer)
+integer, parameter :: NMNHDIM_PROFILER_TIME       = 40  ! Time dimension for profilers
+integer, parameter :: NMNHDIM_STATION_TIME        = 41  ! Time dimension for stations
 
-integer, parameter :: NMNHDIM_PAIR                = 40  ! For values coming by pair (ie boundaries)
+integer, parameter :: NMNHDIM_PAIR                = 42  ! For values coming by pair (ie boundaries)
 
-integer, parameter :: NMNHDIM_LASTDIM_DIACHRO     = 40  ! Index of the last defined dimension for diachronic files
+integer, parameter :: NMNHDIM_LASTDIM_DIACHRO     = 42  ! Index of the last defined dimension for diachronic files
 
 integer, parameter :: NMNHDIM_BUDGET_NGROUPS      = 101 ! This is not a true dimension
 integer, parameter :: NMNHDIM_FLYER_PROC          = 102 ! This is not a true dimension
diff --git a/src/LIB/SURCOUCHE/src/mode_io_tools_nc4.f90 b/src/LIB/SURCOUCHE/src/mode_io_tools_nc4.f90
index 477c389dbf6ffe6691029ff11a627e431b2e0a84..50412e8c08015401031defdfdbec37509180e520 100644
--- a/src/LIB/SURCOUCHE/src/mode_io_tools_nc4.f90
+++ b/src/LIB/SURCOUCHE/src/mode_io_tools_nc4.f90
@@ -19,6 +19,7 @@
 !  P. Wautelet 18/03/2021: workaround for an intel compiler bug
 !  P. Wautelet 04/05/2021: improve IO_Vdims_fill_nc4 if l2d and lpack
 !  P. Wautelet 27/05/2021: improve IO_Mnhname_clean to autocorrect names to be CF compliant
+!  P. Wautelet 08/10/2021: add 2 new dimensions: LW_bands and SW_bands
 !-----------------------------------------------------------------
 #ifdef MNH_IOCDF4
 module mode_io_tools_nc4
@@ -254,7 +255,7 @@ use modd_dyn,           only: xseglen
 use modd_dyn_n,         only: xtstep
 use modd_field,         only: NMNHDIM_NI, NMNHDIM_NJ, NMNHDIM_NI_U, NMNHDIM_NJ_U, NMNHDIM_NI_V, NMNHDIM_NJ_V,   &
                               NMNHDIM_LEVEL, NMNHDIM_LEVEL_W, NMNHDIM_TIME,                                     &
-                              NMNHDIM_ONE,  NMNHDIM_COMPLEX,                                                    &
+                              NMNHDIM_ONE,  NMNHDIM_NSWB, NMNHDIM_NLWB, NMNHDIM_COMPLEX,                        &
                               NMNHDIM_BUDGET_CART_NI, NMNHDIM_BUDGET_CART_NJ, NMNHDIM_BUDGET_CART_NI_U,         &
                               NMNHDIM_BUDGET_CART_NJ_U, NMNHDIM_BUDGET_CART_NI_V, NMNHDIM_BUDGET_CART_NJ_V,     &
                               NMNHDIM_BUDGET_CART_LEVEL, NMNHDIM_BUDGET_CART_LEVEL_W,                           &
@@ -274,7 +275,9 @@ use modd_les,           only: lles_pdf, nles_k, npdf, nspectra_k, xles_temp_mean
 use modd_les_n,         only: nles_times, nspectra_ni, nspectra_nj
 use modd_nsv,           only: nsv
 USE MODD_PARAMETERS_ll, ONLY: JPHEXT, JPVEXT
+use modd_param_n,       only: crad
 use modd_profiler_n,    only: numbprofiler, tprofiler
+use modd_radiations_n,  only: nlwb_mnh, nswb_mnh
 use modd_series,        only: lseries
 use modd_series_n,      only: nsnbstept
 use modd_station_n,     only: numbstat, tstation
@@ -336,6 +339,11 @@ if ( tpfile%ctype == 'MNHDIACHRONIC' .or. ( lpack .and. l2d ) ) then
   call IO_Add_dim_nc4( tpfile, NMNHDIM_ONE, 'one', 1 )
 end if
 
+if ( tpfile%ctype /= 'MNHDIACHRONIC' .and. crad /= 'NONE' ) then
+  call IO_Add_dim_nc4( tpfile, NMNHDIM_NSWB, 'SW_bands', nswb_mnh ) !number of SW bands practically used
+  call IO_Add_dim_nc4( tpfile, NMNHDIM_NLWB, 'LW_bands', nlwb_mnh ) !number of LW bands practically used
+end if
+
 !Write dimensions used in diachronic files
 if ( tpfile%ctype == 'MNHDIACHRONIC' ) then
   !Dimension of size 2 used for NMNHDIM_COMPLEX