diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/1_input_mnh/EXSEG1.nam b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/1_input_mnh/EXSEG1.nam_for_A_cpl_mnh_toywav
similarity index 92%
rename from MY_RUN/KTEST/013_Iroise_OASIS_coupling/1_input_mnh/EXSEG1.nam
rename to MY_RUN/KTEST/013_Iroise_OASIS_coupling/1_input_mnh/EXSEG1.nam_for_A_cpl_mnh_toywav
index 752548352bfe3d7ea9286484252327bad44f249d..cf4a99647517150adb1185d212275f2fc2c093a1 100644
--- a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/1_input_mnh/EXSEG1.nam
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/1_input_mnh/EXSEG1.nam_for_A_cpl_mnh_toywav
@@ -3,9 +3,9 @@
            CMODEL_NAME = 'mesonh' /
 
 &NAM_SFX_WAVE_CPL XTSTEP_CPL_WAVE = 60.0,
-                  CWAVE_U10       = 'MNH__U10',
+                  CWAVE_U10       = 'MNH_SEND',
                   CWAVE_V10       = '        ',
-                  CWAVE_CHA       = 'MNH__CHA',
+                  CWAVE_CHA       = 'MNH_RECV',
                   CWAVE_UCU       = '        ',
                   CWAVE_VCU       = '        ',
                   CWAVE_HS        = '        ',
@@ -67,6 +67,7 @@
 &NAM_LBCn CLBCX       = 2*'OPEN',
           CLBCY       = 2*'OPEN' /
 
-&NAM_DIAG_SURFn N2M=2 /
+&NAM_DIAG_SURFn N2M          = 2,
+                LSURF_BUDGET = T /
 
 &NAM_SEAFLUXn CSEA_FLUX='COARE3' /
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/1_input_mnh/EXSEG1.nam_for_B_cpl_mnh_toyoce b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/1_input_mnh/EXSEG1.nam_for_B_cpl_mnh_toyoce
new file mode 100644
index 0000000000000000000000000000000000000000..e53f899f1dcca2b42953320c2f0d1fce6b26a5b1
--- /dev/null
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/1_input_mnh/EXSEG1.nam_for_B_cpl_mnh_toyoce
@@ -0,0 +1,73 @@
+&NAM_OASIS LOASIS      = .TRUE.,
+           LOASIS_GRID = .TRUE.,
+           CMODEL_NAME = 'mesonh' /
+
+&NAM_SFX_WAVE_CPL XTSTEP_CPL_WAVE = -1.0,
+                  CWAVE_U10       = '        ',
+                  CWAVE_V10       = '        ',
+                  CWAVE_CHA       = '        ',
+                  CWAVE_UCU       = '        ',
+                  CWAVE_VCU       = '        ',
+                  CWAVE_HS        = '        ',
+                  CWAVE_TP        = '        ' /
+
+&NAM_SFX_SEA_CPL XTSTEP_CPL_SEA  =  60.0,
+                 CSEA_FWSU       = 'MNH_SEND',
+                 CSEA_FWSV       = '        ',
+                 CSEA_HEAT       = '        ',
+                 CSEA_SNET       = '        ',
+                 CSEA_WIND       = '        ',
+                 CSEA_FWSM       = '        ',
+                 CSEA_EVAP       = '        ',
+                 CSEA_RAIN       = '        ',
+                 CSEA_SNOW       = '        ',
+                 CSEA_WATF       = '        ',
+                 CSEA_PRES       = '        ',
+                 CSEA_SST        = 'MNH_RECV',
+                 CSEA_UCU        = '        ',
+                 CSEA_VCU        = '        ' /
+
+&NAM_CONF CCONF  = 'START',
+          NVERB  = 0,
+          NMODEL = 1,
+          CEXP   = 'IROIS',
+          CSEG   = '00-01',
+          CSPLIT = 'BSPLITTING' /
+
+&NAM_DYN XSEGLEN   =    360.,
+         LCORIO    =  .TRUE.,
+         LNUMDIFU  =  .TRUE.,
+         LNUMDIFTH = .FALSE.,
+         XALKTOP   =   0.001,
+         XALZBOT   =    1200. /
+
+&NAM_BACKUP  XBAK_TIME(1,1)=360. /
+
+&NAM_LUNITn CINIFILE    = 'IROISE_5KM_201109_02_00',
+            CINIFILEPGD = 'IROISE_5KM' /
+
+&NAM_DYNn  XTSTEP    = 10.,  
+           CPRESOPT  = 'ZRESI', 
+           LVE_RELAX = .TRUE. /
+
+&NAM_ADVn CUVW_ADV_SCHEME = 'CEN4TH',
+          CTEMP_SCHEME    = 'LEFR'  ,
+          CMET_ADV_SCHEME = 'PPM_01',
+          CSV_ADV_SCHEME  = 'PPM_01' /
+
+&NAM_PARAMn CCLOUD = 'ICE3',
+            CTURB  = 'TKEL',
+            CRAD   = 'ECMW',
+            CDCONV = 'NONE',
+            CSCONV = 'EDKF' /
+
+&NAM_PARAM_RADn XDTRAD        = 600.,
+                XDTRAD_CLONLY = 600. /
+
+&NAM_LBCn CLBCX       = 2*'OPEN',
+          CLBCY       = 2*'OPEN' /
+
+&NAM_DIAG_SURFn N2M          = 2,
+                LSURF_BUDGET = T /
+
+&NAM_SEAFLUXn CSEA_FLUX='COARE3' /
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/1_input_mnh/create_restart_file_from_PREP_IDEAL_CASE.py b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/1_input_mnh/create_restart_file_from_PREP_IDEAL_CASE.py
index 738b6f99637c33ac692f38e405be2853272e1ab3..30ec50dc3c1e279b469b7196fb802826ec374690 100755
--- a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/1_input_mnh/create_restart_file_from_PREP_IDEAL_CASE.py
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/1_input_mnh/create_restart_file_from_PREP_IDEAL_CASE.py
@@ -106,6 +106,7 @@ varout=fout.createVariable('MNH_WATF','d',('nlat','nlon'),fill_value=999.)
 varout=fout.createVariable('MNH_PRES','d',('nlat','nlon'),fill_value=999.)
 varout=fout.createVariable('MNH__U10','d',('nlat','nlon'),fill_value=999.)
 varout=fout.createVariable('MNH__V10','d',('nlat','nlon'),fill_value=999.)
+varout=fout.createVariable('MNH_SEND','d',('nlat','nlon'),fill_value=999.)
 
 # ----------------------------------
 #   Write data arrays 
@@ -120,6 +121,7 @@ fout.variables['MNH_WATF'][:,:] = RAIN_MNH[:,:]-EVAP_MNH[:,:]
 fout.variables['MNH_PRES'][:,:] = RAIN_MNH[:,:]
 fout.variables['MNH__U10'][:,:] = U10_MNH[:,:]
 fout.variables['MNH__V10'][:,:] = V10_MNH[:,:]
+fout.variables['MNH_SEND'][:,:] = U10_MNH[:,:]
 
 # ---------------------------------------
 #   Close the file
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/2_input_toy/TOYNAMELIST.nam_oce b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/2_input_toy/TOYNAMELIST.nam_oce
new file mode 100644
index 0000000000000000000000000000000000000000..11552c49687f523c8e13b2a76e1054ce3768623d
--- /dev/null
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/2_input_toy/TOYNAMELIST.nam_oce
@@ -0,0 +1,12 @@
+&nam_grid ntime_steps    = 6,
+           time_step      = 60,
+           grid_file_name = 'grid_toy_model.nc' /
+
+&nam_fct_send type_send='const',
+              value_send=292 /
+
+&nam_recv_fields nrecv_fields=1,
+                 name_recv_fields(1)='VARRCV01' /
+
+&nam_send_fields nsend_fields=1, 
+                 name_send_fields(1)='VARCNSTE' / 
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/2_input_toy/TOYNAMELIST.nam b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/2_input_toy/TOYNAMELIST.nam_wav
similarity index 100%
rename from MY_RUN/KTEST/013_Iroise_OASIS_coupling/2_input_toy/TOYNAMELIST.nam
rename to MY_RUN/KTEST/013_Iroise_OASIS_coupling/2_input_toy/TOYNAMELIST.nam_wav
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/3_input_oasis/namcouple b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/3_input_oasis/namcouple_oce
similarity index 95%
rename from MY_RUN/KTEST/013_Iroise_OASIS_coupling/3_input_oasis/namcouple
rename to MY_RUN/KTEST/013_Iroise_OASIS_coupling/3_input_oasis/namcouple_oce
index 2c5daee92482267d126a0e110c72341c7d012c7c..4e85d7c3015777bca542216b28a150bcddc52b94 100755
--- a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/3_input_oasis/namcouple
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/3_input_oasis/namcouple_oce
@@ -43,7 +43,7 @@
 #~~~~~~~~~~~
 # Field 1 : 
 #~~~~~~~~~~~
-MNH__U10 VARRCV01 1 60 1 rst_A.nc EXPOUT
+MNH_SEND VARRCV01 1 60 1 rst_A.nc EXPOUT
 20 20 66 75 ssea toyt LAG=+10
 R  0  R  0
 SCRIPR
@@ -56,7 +56,7 @@ BILINEAR LR SCALAR LATLON 1
 #~~~~~~~~~~~
 # Field 2 : 
 #~~~~~~~~~~~
-VARSIN01 MNH__CHA 1 60 1 rst_T.nc EXPOUT
+VARCNSTE MNH_RECV 1 60 1 rst_T.nc EXPOUT
 66 75 20 20 toyt ssea LAG=+60
 R  0  R  0
 SCRIPR
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/3_input_oasis/namcouple_wav b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/3_input_oasis/namcouple_wav
new file mode 100755
index 0000000000000000000000000000000000000000..0ec7f18bcb5a0a6666804f8973e937c796fe8342
--- /dev/null
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/3_input_oasis/namcouple_wav
@@ -0,0 +1,65 @@
+# This is a typical input file for OASIS3-MCT.
+# Keywords used in previous versions of OASIS3 
+# but now obsolete are marked "Not used"
+# Don't hesitate to ask precisions or make suggestions (oasishelp@cerfacs.fr). 
+#
+# Any line beginning with # is ignored. Blank lines are not allowed.
+#
+#########################################################################
+ $NFIELDS
+# The number of fields described in the second part of the namcouple.
+#
+            2
+ $END
+#########################################################################
+ $NBMODEL
+# The number of models in this experiment + their names (6 characters)
+#
+   2  mesonh   toyexe
+ $END
+###########################################################################
+ $RUNTIME
+# The total simulated time for this run in seconds
+#
+  360
+ $END
+###########################################################################
+ $NLOGPRT
+# Amount of information written to OASIS3-MCT log files (see User Guide)
+# Premier nombre: quantite d'information pour debugger
+# Second nombre: statistics des processeurs
+  30 3
+ $END
+###########################################################################
+ $STRINGS
+#
+# The above variables are the general parameters for the experiment.
+# Everything below has to do with the fields being exchanged.
+#
+#                     -----------------------------------------
+#                        MESONH (mesonh) ==> TOY (toyexe)
+#                     -----------------------------------------
+#
+#~~~~~~~~~~~
+# Field 1 : 
+#~~~~~~~~~~~
+MNH_SEND VARRCV01 1 60 1 rst_A.nc EXPOUT
+20 20 66 75 ssea toyt LAG=+10
+R  0  R  0
+SCRIPR
+BILINEAR LR SCALAR LATLON 1
+#
+#                     ------------------------------------------
+#                        TOY (toyexe) ==> MESONH (mesonh)
+#                     ------------------------------------------
+#
+#~~~~~~~~~~~
+# Field 2 : 
+#~~~~~~~~~~~
+VARSIN01 MNH_RECV 1 60 1 rst_T.nc EXPOUT
+66 75 20 20 toyt ssea LAG=+60
+R  0  R  0
+SCRIPR
+DISTWGT LR SCALAR LATLON 1 4
+#
+ $END
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toy/clean_plot b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toy/clean_plot
deleted file mode 100755
index ebf32dc746e0aab6c110256f1dff9916645e4b90..0000000000000000000000000000000000000000
--- a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toy/clean_plot
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/bash
-
-rm -Rf U10_CHA/ 
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toy/.gitignore b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toywav/.gitignore
similarity index 82%
rename from MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toy/.gitignore
rename to MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toywav/.gitignore
index b6de864bb464ac96b254008a9f9884b374f102af..866bfb6712a11fff2f6535da7f655c361119fd2e 100644
--- a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toy/.gitignore
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toywav/.gitignore
@@ -1,6 +1,6 @@
 *.nam
 *.txt
-U10_CHA/
+SEND_RECV/
 debug.*
 *timers*
 namcouple
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toy/clean_mesonh_xyz b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toywav/clean_mesonh_xyz
similarity index 100%
rename from MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toy/clean_mesonh_xyz
rename to MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toywav/clean_mesonh_xyz
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toywav/clean_plot b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toywav/clean_plot
new file mode 100755
index 0000000000000000000000000000000000000000..a0bc7024cef12cd865fea08e0df3b8f3365b3bfd
--- /dev/null
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toywav/clean_plot
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+rm -Rf SEND_RECV/ 
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toy/plot_check_exchanges_between_mesonh_and_toy.py b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toywav/plot_check_exchanges_between_mesonh_and_toy.py
similarity index 98%
rename from MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toy/plot_check_exchanges_between_mesonh_and_toy.py
rename to MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toywav/plot_check_exchanges_between_mesonh_and_toy.py
index 25f860c80ecd884fa84c64ee40419a781e48802f..dcca2ee683f51a4d42d7dd5e177df7c701e7fce9 100755
--- a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toy/plot_check_exchanges_between_mesonh_and_toy.py
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toywav/plot_check_exchanges_between_mesonh_and_toy.py
@@ -28,8 +28,8 @@ name_file_send_mnh = glob.glob('*mesonh_01.nc')[0]
 name_file_recv_mnh = glob.glob('*mesonh_02.nc')[0]
 name_file_send_toy = glob.glob('*toyexe_02.nc')[0]
 name_file_recv_toy = glob.glob('*toyexe_01.nc')[0]
-name_var01         = name_file_send_mnh[5:8]
-name_var02         = name_file_recv_mnh[5:8]
+name_var01         = name_file_send_mnh[4:8]
+name_var02         = name_file_recv_mnh[4:8]
 
 # #########################################################
 
@@ -132,4 +132,4 @@ ax.set_ylim(( max(np.min(lat_mnh[1:-1,1:-1]),np.min(lat_toy[1:-1,1:-1])), min(np
 #------------------------
 plt.savefig(curdir_path+name_var01+"_"+name_var02+"/"+name_var01+"_"+name_var02+".png", bbox_inches='tight', dpi=400)
 plt.close()
-#------------------------
\ No newline at end of file
+#------------------------
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toy/run_mesonh_xyz b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toywav/run_mesonh_xyz
similarity index 76%
rename from MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toy/run_mesonh_xyz
rename to MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toywav/run_mesonh_xyz
index 6ee0120d164eabd0106b80e88e48a36f97f2556a..28bcf4da41a60a1c2c905d95f9c0254a034b7823 100755
--- a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toy/run_mesonh_xyz
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toywav/run_mesonh_xyz
@@ -8,16 +8,16 @@ export PATH_EXETOY=${SRC_MESONH}/src/LIB/toy_2.0/
 
 #~~~~~ MESONH
 ln -sf ../1_input_mnh/IROISE_5KM* .
-ln -sf ../1_input_mnh/EXSEG1.nam .
+ln -sf ../1_input_mnh/EXSEG1.nam_for_A_cpl_mnh_toywav EXSEG1.nam
 cp     ../1_input_mnh/rstrt_MNH.nc rst_A.nc
 
 #~~~~~ TOY
 ln -sf ../2_input_toy/grid_toy_model.nc .
-ln -sf ../2_input_toy/TOYNAMELIST.nam .
+ln -sf ../2_input_toy/TOYNAMELIST.nam_wav TOYNAMELIST.nam
 cp     ../2_input_toy/rstrt_TOY.nc rst_T.nc
 
 #~~~~~ OASIS
-ln -fs ../3_input_oasis/namcouple .
+ln -fs ../3_input_oasis/namcouple_wav namcouple
 
 # ------------------------------------------
 time mpirun -np 1 $PATH_EXETOY/toy_model : -np 1 MESONH${XYZ}  
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toy/run_plot b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toywav/run_plot
similarity index 100%
rename from MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toy/run_plot
rename to MY_RUN/KTEST/013_Iroise_OASIS_coupling/A_cpl_mnh_toywav/run_plot
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/.gitignore b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..866bfb6712a11fff2f6535da7f655c361119fd2e
--- /dev/null
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/.gitignore
@@ -0,0 +1,7 @@
+*.nam
+*.txt
+SEND_RECV/
+debug.*
+*timers*
+namcouple
+nout.000000
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/clean_mesonh_xyz b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/clean_mesonh_xyz
new file mode 100755
index 0000000000000000000000000000000000000000..9ed68a75ff863f68ea1b3c239a94bace632c770b
--- /dev/null
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/clean_mesonh_xyz
@@ -0,0 +1,15 @@
+#!/bin/bash
+
+rm -f file_*
+rm -f IROIS*
+rm -f OUTPUT_LIST* REMAP*
+rm -f PRESSURE*
+rm -f *.nc
+rm -f EXSEG1.nam
+rm -f namcouple
+rm -f TOYNAMELIST.nam 
+rm -f debug* mesonh* toyexe*
+rm -f nout.000000
+rm -f OUTPUT_TOY.txt
+rm -f pipe_name
+
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/clean_plot b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/clean_plot
new file mode 100755
index 0000000000000000000000000000000000000000..a0bc7024cef12cd865fea08e0df3b8f3365b3bfd
--- /dev/null
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/clean_plot
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+rm -Rf SEND_RECV/ 
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/plot_check_exchanges_between_mesonh_and_toy.py b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/plot_check_exchanges_between_mesonh_and_toy.py
new file mode 100755
index 0000000000000000000000000000000000000000..7add3bc0d452086f8b0878893d2f1ae87f25e57c
--- /dev/null
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/plot_check_exchanges_between_mesonh_and_toy.py
@@ -0,0 +1,135 @@
+#!/bin/python3
+# --------------------------------------------------------
+#
+#                 Author  (    date    ) :
+#             J. Pianezze ( 29.09.2023 )
+#
+#                    ~~~~~~~~~~~~~~~
+#       Script used to verify OASIS exchanges between
+#                Meso-NH and toy models
+#                    ~~~~~~~~~~~~~~~
+#
+# --------------------------------------------------------
+
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+import os, glob
+import netCDF4
+import numpy as np
+import matplotlib.pyplot as plt
+from   matplotlib.colors import BoundaryNorm
+curdir_path = os.getcwd()+'/'
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+# #########################################################
+# ###           To be defined by user                   ###
+# #########################################################
+
+name_file_send_mnh = glob.glob('*mesonh_01.nc')[0]
+name_file_recv_mnh = glob.glob('*mesonh_02.nc')[0]
+name_file_send_toy = glob.glob('*toyexe_02.nc')[0]
+name_file_recv_toy = glob.glob('*toyexe_01.nc')[0]
+name_var01         = name_file_send_mnh[4:8]
+name_var02         = name_file_recv_mnh[4:8]
+
+# #########################################################
+
+# ---------------------------------------
+#   Create directory to store figures
+# ---------------------------------------
+try :
+  os.mkdir(curdir_path+name_var01+'_'+name_var02+'/')
+except OSError:
+  print('Directory already created')
+else:
+  print('Making directory')
+
+# ---------------------------------------
+#   Open files
+# ---------------------------------------
+file_send_toy = netCDF4.Dataset(name_file_send_toy)
+file_recv_mnh = netCDF4.Dataset(name_file_recv_mnh)
+file_recv_toy = netCDF4.Dataset(name_file_recv_toy)
+file_send_mnh = netCDF4.Dataset(name_file_send_mnh)
+file_grids    = netCDF4.Dataset('grids.nc')
+
+# ---------------------------------------
+#   Read lon/lat
+# ---------------------------------------
+lon_toy = file_grids.variables['toyt.lon'] ; nlon_toy = np.shape(lon_toy)[1]
+lat_toy = file_grids.variables['toyt.lat'] ; nlat_toy = np.shape(lat_toy)[0]
+lon_mnh = file_grids.variables['ssea.lon'] ; nlon_mnh = np.shape(lon_mnh)[1]
+lat_mnh = file_grids.variables['ssea.lat'] ; nlat_mnh = np.shape(lat_mnh)[0]
+
+# ---------------------------------------
+#   Read variables
+# ---------------------------------------
+var_send_toy = file_send_toy.variables[name_file_send_toy[0:8]][-2,:,:]
+var_recv_toy = file_recv_toy.variables[name_file_recv_toy[0:8]][-1,:,:]*1000.0
+var_send_mnh = file_send_mnh.variables[name_file_send_mnh[0:8]][-2,:,:]*1000.0
+var_recv_mnh = file_recv_mnh.variables[name_file_recv_mnh[0:8]][-1,:,:]
+
+mask_mnh     = (var_send_mnh[:,:] > 1E10)
+var_send_mnh = np.ma.MaskedArray(var_send_mnh, mask=mask_mnh)
+var_recv_mnh = np.ma.MaskedArray(var_recv_mnh, mask=mask_mnh)
+
+mask_toy    = (var_recv_toy[:,:] == 0.0)
+var_send_toy = np.ma.MaskedArray(var_send_toy, mask=mask_toy)
+var_recv_toy = np.ma.MaskedArray(var_recv_toy, mask=mask_toy)
+
+# -----------------------------------------------------------
+#   Create figure
+# -----------------------------------------------------------
+fig = plt.figure()
+
+# -----------------------------------------------------------
+#   Define colormap and norm
+# -----------------------------------------------------------
+cmap_wnd   = plt.cm.RdBu_r
+cmap_toy   = plt.cm.RdBu_r
+
+levels_wnd = np.arange(-9.0, -7.1, 0.1)
+levels_toy = np.arange(289.0, 291.1,  0.1)
+
+norm_wnd   = BoundaryNorm(levels_wnd, ncolors=cmap_wnd.N, clip=True)
+norm_toy   = BoundaryNorm(levels_toy, ncolors=cmap_toy.N, clip=True)
+
+#----------------------
+ax   = fig.add_subplot(221)
+plt.title('(a) Send by MNH')
+cs   = plt.pcolormesh(lon_mnh[:,:],lat_mnh[:,:],var_send_mnh[:,:],cmap=cmap_wnd,norm=norm_wnd)
+cbar = plt.colorbar(cs,orientation='vertical',format='%.2f')
+plt.tick_params(axis='x',which='both',labelbottom=False)
+ax.set_xlim(( max(np.min(lon_mnh[1:-1,1:-1]),np.min(lon_toy[1:-1,1:-1])), min(np.max(lon_mnh[1:-1,1:-1]),np.max(lon_toy[1:-1,1:-1])) ))
+ax.set_ylim(( max(np.min(lat_mnh[1:-1,1:-1]),np.min(lat_toy[1:-1,1:-1])), min(np.max(lat_mnh[1:-1,1:-1]),np.max(lat_toy[1:-1,1:-1])) ))
+
+#----------------------
+ax   = fig.add_subplot(222)
+plt.title('(b) Received by TOY')
+cs   = plt.pcolormesh(lon_toy[:,:],lat_toy[:,:],var_recv_toy[:,:],cmap=cmap_wnd,norm=norm_wnd)
+cbar = plt.colorbar(cs,orientation='vertical',format='%.2f')
+plt.tick_params(axis='x',which='both',labelbottom=False)
+plt.tick_params(axis='y',which='both',labelleft  =False)
+ax.set_xlim(( max(np.min(lon_mnh[1:-1,1:-1]),np.min(lon_toy[1:-1,1:-1])), min(np.max(lon_mnh[1:-1,1:-1]),np.max(lon_toy[1:-1,1:-1])) ))
+ax.set_ylim(( max(np.min(lat_mnh[1:-1,1:-1]),np.min(lat_toy[1:-1,1:-1])), min(np.max(lat_mnh[1:-1,1:-1]),np.max(lat_toy[1:-1,1:-1])) ))
+
+#----------------------
+ax   = fig.add_subplot(223)
+plt.title('(c) Send by TOY')
+cs   = plt.pcolormesh(lon_toy[:,:],lat_toy[:,:],var_send_toy[:,:],cmap=plt.cm.RdBu_r,vmin=np.min(var_send_toy), vmax=np.max(var_send_toy))  
+cbar = plt.colorbar(cs,orientation='vertical',format='%.1f')
+ax.set_xlim(( max(np.min(lon_mnh[1:-1,1:-1]),np.min(lon_toy[1:-1,1:-1])), min(np.max(lon_mnh[1:-1,1:-1]),np.max(lon_toy[1:-1,1:-1])) ))
+ax.set_ylim(( max(np.min(lat_mnh[1:-1,1:-1]),np.min(lat_toy[1:-1,1:-1])), min(np.max(lat_mnh[1:-1,1:-1]),np.max(lat_toy[1:-1,1:-1])) ))
+   
+#----------------------
+ax   = fig.add_subplot(224)
+plt.title('(d) Received by MNH')
+cs   = plt.pcolormesh(lon_mnh[:,:],lat_mnh[:,:],var_recv_mnh[:,:],cmap=plt.cm.RdBu_r,vmin=np.min(var_send_toy), vmax=np.max(var_send_toy))  
+cbar = plt.colorbar(cs,orientation='vertical',format='%.1f')
+plt.tick_params(axis='y',which='both',labelleft=False)
+ax.set_xlim(( max(np.min(lon_mnh[1:-1,1:-1]),np.min(lon_toy[1:-1,1:-1])), min(np.max(lon_mnh[1:-1,1:-1]),np.max(lon_toy[1:-1,1:-1])) ))
+ax.set_ylim(( max(np.min(lat_mnh[1:-1,1:-1]),np.min(lat_toy[1:-1,1:-1])), min(np.max(lat_mnh[1:-1,1:-1]),np.max(lat_toy[1:-1,1:-1])) ))
+
+#------------------------
+plt.savefig(curdir_path+name_var01+"_"+name_var02+"/"+name_var01+"_"+name_var02+".png", bbox_inches='tight', dpi=400)
+plt.close()
+#------------------------
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/run_mesonh_xyz b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/run_mesonh_xyz
new file mode 100755
index 0000000000000000000000000000000000000000..19252124c7ff70016cf5708839c22f52a02f3cbb
--- /dev/null
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/run_mesonh_xyz
@@ -0,0 +1,24 @@
+#!/bin/bash
+
+echo '--------------------------------------'
+echo '    Run Meso-NH coupling              '
+echo '--------------------------------------'
+
+export PATH_EXETOY=${SRC_MESONH}/src/LIB/toy_2.0/
+
+#~~~~~ MESONH
+ln -sf ../1_input_mnh/IROISE_5KM* .
+ln -sf ../1_input_mnh/EXSEG1.nam_for_B_cpl_mnh_toyoce EXSEG1.nam
+cp     ../1_input_mnh/rstrt_MNH.nc rst_A.nc
+
+#~~~~~ TOY
+ln -sf ../2_input_toy/grid_toy_model.nc .
+ln -sf ../2_input_toy/TOYNAMELIST.nam_oce TOYNAMELIST.nam
+cp     ../2_input_toy/rstrt_TOY.nc rst_T.nc
+
+#~~~~~ OASIS
+ln -fs ../3_input_oasis/namcouple_oce namcouple
+
+# ------------------------------------------
+time mpirun -np 1 $PATH_EXETOY/toy_model : -np 1 MESONH${XYZ}  
+# ------------------------------------------
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/run_plot b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/run_plot
new file mode 100755
index 0000000000000000000000000000000000000000..fd117c24041ed0ab80537ee857d7c2eec0e32e5a
--- /dev/null
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/B_cpl_mnh_toyoce/run_plot
@@ -0,0 +1,3 @@
+#!/bin/bash 
+
+python3 plot_check_exchanges_between_mesonh_and_toy.py
diff --git a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/Makefile b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/Makefile
index e74e60f19adf3ca91edbb7a31dd6e199ba692256..4a5d204ee0ebc5c1ee6b26f446bc64698871187a 100644
--- a/MY_RUN/KTEST/013_Iroise_OASIS_coupling/Makefile
+++ b/MY_RUN/KTEST/013_Iroise_OASIS_coupling/Makefile
@@ -1,11 +1,15 @@
 all:
-	cd 1_input_mnh/   && get_pgd_files
-	cd 1_input_mnh/   && run_prep_mesonh_xyz
-	cd 2_input_toy/   && run_prep_toy
-	cd A_cpl_mnh_toy/ && run_mesonh_xyz
-	cd A_cpl_mnh_toy/ && run_plot
+	cd 1_input_mnh/      && get_pgd_files
+	cd 1_input_mnh/      && run_prep_mesonh_xyz
+	cd 2_input_toy/      && run_prep_toy
+	cd A_cpl_mnh_toywav/ && run_mesonh_xyz
+	cd A_cpl_mnh_toywav/ && run_plot
+	cd B_cpl_mnh_toyoce/ && run_mesonh_xyz
+	cd B_cpl_mnh_toyoce/ && run_plot
 clean:
-	cd 1_input_mnh/   && clean_prep_mesonh_xyz
-	cd 2_input_toy/   && clean_prep_toy
-	cd A_cpl_mnh_toy/ && clean_mesonh_xyz
-	cd A_cpl_mnh_toy/ && clean_plot
+	cd 1_input_mnh/      && clean_prep_mesonh_xyz
+	cd 2_input_toy/      && clean_prep_toy
+	cd A_cpl_mnh_toywav/ && clean_mesonh_xyz
+	cd A_cpl_mnh_toywav/ && clean_plot
+	cd B_cpl_mnh_toyoce/ && clean_mesonh_xyz
+	cd B_cpl_mnh_toyoce/ && clean_plot