function [sig] = get_sig_tpod(t,sn);
% get_sig_tpod.m - function to get sigma for tpods

% get fit for CTD Temp -> sig
load ../ctd/progs/ctd_tsig_fit

% get calibration factors for tpods
% add the calibration factors to the data
%load cal_tpods
cal_10983 = -0.0026;
cal_10984 = -0.0029;
cal_10986 = -0.0011;
cal_11177 = -0.0011;

eval(['cal = cal_',int2str(sn),';'])

sig = interp1(tbin,sigbin,t+cal);
%sig = interpend(tbin,sigbin,t+cal);
return
