Update readme.md

## Underway data

### import dhsip data

### import dship data

Downloaded data from shipd DSHIP system in 30 s interval ([POS519_UW_dship.dat](https://git.geomar.de/tobias-steinhoff/Poseidon-POS519/blob/master/data%20processing/data/POS519_UW_dship.dat):

). The dship data were imported into matlab using the following script:

'''

% import_dship.m

[file,path_in]=uigetfile(cd,'choose file ','*.dat');

cd(path_in)

an=dlmread(file,'\t',3,0);

mtime=an(:,2);

dship.course=an(:,3);

dship.heading=an(:,4);

lat=an(:,5);

lon=an(:,6);

dship.sal=an(:,7);

dship.sst_ship=an(:,8);

dship.tsg_temp=an(:,9);

dship.wind_dir_t=an(:,10);

dship.wind_speed_t=an(:,11);

dship.air_press=an(:,12);

dship.rh=an(:,13);

dship.wind_dir_r=an(14);

dship.wind_speed_r=an(15);    

clear an file path_in

'''

gsgfd

[top](#data-processing-after-poseidon-cruise-pos519)