function aviso_addinMITprof(ncfile)
% function aviso_addinMITprof(ncfile)
%   add MADT (Maps of Absolute Dynamic Topography) interpolated on profile
%   positions available in a MITprof netcdf file.
%   Use OpenDap, through the loaddap function.
%
%   fileIn: path (absolute or relative) to MITprof netcdf file
%   model is a string used to select the model to be loaded
%       'OCCA' : ECCOv4 grid + OCCA atlas
%       'SOSE59' : SOSE59 grid + atlas

% process file name
[pathstr, name, ext] = fileparts(ncfile);
if isempty(pathstr) | strcmp(pathstr,'.'), pathstr=pwd; end
if isempty(ext) | ~strcmp(ext,'.nc'), ext='.nc'; end
ncfile=[pathstr '/' name ext];

if isempty(which('loaddap')),
    error('loaddap toolbox must be installed');
end

% load profiles
M=MITprof_load(ncfile,{'prof_date','prof_lat','prof_lon'});

% load data
loc=[];
loc.lat=M.prof_lat;
loc.lon=M.prof_lon;
loc.time=M.prof_date;
grid_aviso=aviso_get_grid;
madt=aviso_get_madt(loc,grid_aviso);

% add fields
fillval=double(-9999);
madt(isnan(madt))=fillval;
MITprof_addVar(ncfile,['prof_madt_aviso'],'double',{'iPROF'},madt);

% add attributes
nc=ncopen(ncfile,'write');
ncaddAtt(nc,'prof_madt_aviso','long_name',['MADT AVISO']);
ncaddAtt(nc,'prof_madt_aviso','units','m');
ncaddAtt(nc,'prof_madt_aviso','missing_value',fillval);
ncaddAtt(nc,'prof_madt_aviso','_FillValue',fillval);
ncclose(nc);