31 
© SECOND SECTION OF THE VOYAGE 
Hydrography (M, Stein) 
The Bathysonde (CTD), Nansen samplers, XBT's, and 
the profiling current meter (PCM), were used to 
take the measurements. The profiler (PCM) could be 
run at 3 stations only (Stations 634, 635 and 641), 
The results of the Nansen measurements were used for 
a T/S analysis of the watermasses in the Iceland- 
Faero Ridge area, Some of these preliminary results 
have been used in this report in order to provide 
a detailed description of the CTD profiles, 
Certain selected CTD profiles are reproduced in 
Figs. 105 to 110, At Station 626 (Fig. 105) a large 
stratification in the upper layer was observed, Be- 
low 260 m, the water becomes homogeneousz the tempe- 
rature lies below 0 °c, the salinity is nearly con- 
stant (34.8%°/oo). 
Fig, 106 (Stat.,633) shows a profile which represents 
cold Polar water and Atlantic water, An almost 40 m 
thick surface layer (-1 °c<T< 0,8 °c; 
33 °/oo £ S £ 33.35 °/oo) was observed. At about 
90 m depth, temperature and salinity were more than 
6 °C and 35 °/oo respectively. The water column is 
nearly homogeneous down to the bottomz3 it consists 
of pure Atlantic water, 
On the East Greenland Shelf, Station 637, a large 
toothing of Polar and Atlantic water was found 
(Fig. 107). Here, the near-surface layer of cold 
Polar water is about 70 m thick, The temperature and 
salinity range between -1,5 °C £T< 0,8 °C and 
32 °/oo € S < 33.4 °/oo respectively. At 80 m water 
depth, the temperature and salinity values become 
more than 4 °C and 34.1 °/oo respectively. Down to 
200 m water depth, a comparatively warm, stratified,