function tpwsData = tpws_IntData
% Description:      Initializes a empty data structure for use in the tpws
%                   applications
% -------------------------------------------------------------------------
% Syntax:           tpwsData = tpws_IntData
% -------------------------------------------------------------------------
% Output:           tpwsData    Empty data structure 

tpwsData.T = NaN;
tpwsData.p = NaN;
tpwsData.v = NaN;
tpwsData.u = NaN;
tpwsData.s = NaN;
tpwsData.h = NaN;
tpwsData.c_p = NaN;
tpwsData.c_v = NaN;
tpwsData.state = '';