33 
into computer compatible tapes, the data calibrated 
and corrected. In the case of these pieces of equip- 
ment, the compasses were calibrated individually. 
During the processing, care was taken to obtain the 
best possible data quality (see Ramster, Koltermann, 
1976) in order not to adversely affect later evalu- 
ations, which take place under different criteria. 
Therefore, as an example, the exact time intervals 
determined between two measurement cycles were 
retained and were not rounded off to full minutes, 
and obvious data errors —- such as spikes —- were 
smoothed off by hand. 
B 1.3 Results 
The CTD measurements and hydrographic casts 
show a vertical distribution of temperature and 
salinity (Tables 2, 4, 7, 9ı and Fig. 79 a to r), 
the type of which is characteristic for the whole 
of the Iberian Deep Sea. 
Upper, well mixed —- more or less thick — 
layer (in summer, a very warm upper layer of 
30 to 50 m thickness; in winter, at the time 
of the strongest cooling down, mixed from 
the surface down to X 150 m). 
Below the upper layer, first of all marked 
temperature and salinity decreases down to 
7200 m;j below that, slower temperature and 
salinity decreases down to a salinity minimum 
at x 600 m. 
From about 600 m downwards, relatively strong 
increase in salinity up to a broad salinity maxi- 
mum, which is often double-peaked or even multi- 
peaked and lies —- in general - between 900 m 
and 1,200 m. Within the range of the rise in 
salinity, here and there a slight increase in 
temperature can also be recognized, otherwise