function tsg_initialisation(hTsgGUI, hQcCmenu)
%
% Input
% -----
% hTsgGUI ............ Handel to the main user interface
% hQcCmenu ........... Handel to the QC code context menu
%
% Output
% ------
% $Id$
%

% -------------------------------------------------------------------------
%              Constants for NetCDF DATA FORMAT TSG
% -------------------------------------------------------------------------
% netcdf file version
FORMAT_VERSION      = '1.4';

% date of reference for julian days, is 1st january 1950
REFERENCE_DATE_TIME = '19500101000000';

% -------------------------------------------------------------------------
%              Levitus field for climatology
% -------------------------------------------------------------------------
tsg.levitus.data = [];
tsg.levitus.type = [];

% -------------------------------------------------------------------------
%              file field 
% -------------------------------------------------------------------------
tsg.file.name = [];
tsg.file.type = [];

% -------------------------------------------------------------------------
%              Constants for the quality control procedure
% -------------------------------------------------------------------------
% Quality Code and color

qc.Color.NO_CONTROL    = 'k';
qc.Color.GOOD          = 'b';
qc.Color.PROBABLY_GOOD = 'g';
qc.Color.PROBABLY_BAD  = 'm';
qc.Color.BAD           = 'r';

qc.Code.NO_CONTROL     = 1;
qc.Code.GOOD           = 2;
qc.Code.PROBABLY_GOOD  = 3;
qc.Code.PROBABLY_BAD   = 4;
qc.Code.BAD            = 5;

% Store default value 'quality' a application data - It's not useful
% ------------------------------------------------------------------
quality.Code  = qc.Code.GOOD;
quality.Color = qc.Color.GOOD;
set( hQcCmenu, 'UserData', quality );

% Store the 'qc' structure as application data
% --------------------------------------------
setappdata( hTsgGUI, 'qcColor', qc);

% -------------------------------------------------------------------------
%              Constants for the Correction procedure
% -------------------------------------------------------------------------
% Smoothing of tsg time series over 1 hour interval
% 1 hour interval expressed in MATLAB serial Number
% -------------------------------------------------
cst.TSG_DT_SMOOTH = datenum(0, 0, 0, 1, 0 , 0);

% Smoothing of tsg time series :
% Salinity, in one 1 hour interval, should not depart the average for more
% than SAL_STD_MAX standard deviation
% -----------------------------------------------------------------------
cst.TSG_STDMAX = 0.1;

% Correction is estimated by computing the median value of X tsg-sample
% differences
% Amount of days used to compute the correction
% ---------------------------------------------------------------------
cst.COR_TIME_WINDOWS = 10;

% store the 'const' structure as an application data
% --------------------------------------------------
setappdata( hTsgGUI, 'constante', cst);

% store tsg NetCDF data structure
% -------------------------------
% get actual date
date = datestr(now,30);

% dimensions
tsg.DAYD                  = 0;
tsg.DAYD_WS               = 0;
tsg.DAYD_EXT              = 0;

% globals attributes
tsg.PLATFORM_NAME         =  '';
tsg.SHIP_CALL_SIGN        =  '';
tsg.SHIP_MMSI             =  '';
tsg.TSG_TYPE              =  '';
tsg.TSG_NUMBER            =  '';
tsg.TINT_TYPE             =  '';
tsg.TINT_NUMBER           =  '';
tsg.DATA_TYPE             =  '';
tsg.DATA_MODE             =  '';
tsg.SAMPLING_PERIOD       =  '';
tsg.PROCESSING_STATUS     =  '';
tsg.DATE_START            =  '';
tsg.DATE_END              =  '';
tsg.SOUTH_LATX            =  '';
tsg.NORTH_LATX            =  '';
tsg.WEST_LONX             =  '';
tsg.EAST_LONX             =  '';
tsg.FORMAT_VERSION        =  FORMAT_VERSION;
tsg.DATE_CREATION         =  [date(1:8) date(10:15)];;
tsg.DATE_UPDATE           =  tsg.DATE_CREATION; 
tsg.DATA_RESTRICTIONS     =  '';
tsg.CITATION              =  '';
tsg.COMMENT               =  '';
tsg.PROJECT_NAME          =  '';
tsg.PI_NAME               =  '';
tsg.DATA_CENTRE           =  '';
tsg.DATA_ACQUISITION      =  '';
tsg.PROCESSING_CENTRE     =  '';
tsg.PROCESSING_STATES     =  '';

% variables describing TSG installation (Salinity, SSPS et Jacket
% Temperature SSJT)
tsg.SSPS_DEPH             = 0;
tsg.SSPS_DEPH_MIN         = 0;
tsg.SSPS_DEPH_MAX         = 0;
tsg.CNDC_CALCOEF          = [99999 99999 99999 99999 99999];
tsg.CNDC_LINCOEF          = [99999 99999];
tsg.SSJT_CALCOEF          = [99999 99999 99999 99999 99999];
tsg.SSJT_LINCOEF          = [99999 99999];

% variables describing Temperature sensor at intake (SSJT) installation
tsg.SSTP_DEPH             = 0;
tsg.SSTP_DEPH_MIN         = 0;
tsg.SSTP_DEPH_MAX         = 0;
tsg.SSTP_CALCOEF          = [99999 99999 99999 99999 99999];
tsg.SSTP_LINCOEF          = [99999 99999];

% Coordinates
tsg.DATE                  = [];
tsg.DAYD                  = [];
tsg.LATX                  = [];
tsg.LONX                  = [];
tsg.POSITION_QC           = [];
tsg.SPDC                  = [];
tsg.REFERENCE_DATE_TIME   = REFERENCE_DATE_TIME;

% variables
tsg.PRES                  = [];
tsg.SSJT                  = [];
tsg.SSJT_STD              = [];
tsg.SSJT_CAL              = [];
tsg.SSJT_ADJUSTED         = [];
tsg.SSJT_ADJUSTED_ERROR   = [];
tsg.SSJT_ADJUSTED_QC      = [];
tsg.SSJT_ADJUSTED_HIST    = [];  
tsg.CNDC                  = [];
tsg.CNDC_STD              = [];
tsg.CNDC_CAL              = [];

%% a verifier !!!!! 
tsg.SSTP                  = [];
tsg.SSTP_QC               = [];
tsg.SSTP_CAL              = [];
tsg.SSTP_ADJUSTED         = [];
tsg.SSTP_ADJUSTED_ERROR   = [];
tsg.SSTP_ADJUSTED_QC      = [];
tsg.SSTP_ADJUSTED_HIST    = [];  

tsg.SSPS                  = [];
tsg.SSPS_QC               = [];
tsg.SSPS_CAL              = [];
tsg.SSPS_ADJUSTED         = [];
tsg.SSPS_ADJUSTED_ERROR   = [];
tsg.SSPS_ADJUSTED_QC      = [];
tsg.SSPS_ADJUSTED_HIST    = [];  

% Water Sample Coordinates
tsg.DATE_WS               = [];
tsg.DAYD_WS               = [];
tsg.LATX_WS               = [];
tsg.LONX_WS               = [];

% Water Sample variables
tsg.SSPS_WS               = []; 
tsg.SSPS_WS               = []; 
tsg.SSPS_WS_QC            = []; 
%tsg.SSPS_WS_DIF           = [];
%tsg.SSPS_WS_SMOOTH        = [];  % a verifier
tsg.SSPS_WS_ANALDATE      = []; 
tsg.SSPS_WS_BOTTLE        = []; 

% External data coordinates
tsg.DATE_EXT              = [];
tsg.DAYD_EXT              = [];
tsg.LATX_EXT              = [];
tsg.LONX_EXT              = [];

% External data variables
tsg.SSTP_EXT              = []; 
tsg.SSTP_EXT_QC           = []; 
tsg.SSTP_EXT_TYPE         = [];
tsg.SSPS_EXT              = []; 
tsg.SSPS_EXT_QC           = []; 
tsg.SSPS_EXT_TYPE         = [];

% Save structure tsg
setappdata( hTsgGUI, 'tsg_data', tsg);

end