# Read file
    reader = MercatorReader('/home/retf/work/fieldsites/med-cruesim/modelling/mercator/grid/mercator_grid.nc',
                            '/home/retf/work/fieldsites/med-cruesim/modelling/mercator/netcdf/pool/ext-PSY2V4R4_1dAV_20120706_20120707_grid2D_R20120711.nc',
                            '/home/retf/work/fieldsites/med-cruesim/modelling/mercator/netcdf/pool/ext-PSY2V4R4_1dAV_20120706_20120707_gridT_R20120711.nc',
                            '/home/retf/work/fieldsites/med-cruesim/modelling/mercator/netcdf/pool/ext-PSY2V4R4_1dAV_20120706_20120707_gridU_R20120711.nc',
                            '/home/retf/work/fieldsites/med-cruesim/modelling/mercator/netcdf/pool/ext-PSY2V4R4_1dAV_20120706_20120707_gridV_R20120711.nc')

        
    coverage = TimeLevelCoverage(reader);

    LevelCoverage.LEVEL_DELTA = 50.0 # On change le delta par défaut pour trouver une couche

    interpolator = CoverageInterpolator(coverage,0.01,0.01,'/home/retf/work/fieldsites/med-cruesim/modelling/mercator/netcdf/pool/test_resample.nc') # résolution voulue en degrès
    interpolator.resample_variable_current_at_level(155.0) # on peut donner la profondeur en mètres positifs (plus proche) ou en indice de couche verticale.
    interpolator.resample_variable_ssh()
    interpolator.close()
    
    print 'End of programm'