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Full text: 43: FFS "Walther Herwig". Fahrt Nr. 51 (6), Teil. 1 u. 2, 9.8.-23.9.1973. ICES-Expedition "Overflow '73". Seegebiet SE-Island: Chemie u. Hydrographie, Seegebiet Island-Grönland: Hydrographie (43)

1Q 
curves of salinity and density, however, are a re- 
sult of the incorrect salinity values, The oscillation 
with a period of about 4 hours is not reliable, 
2.b Vertical Current Profiles (G, Wegner) 
An Aanderaa current meter (Model 4; gear 240:1) was 
used to measure vertical current profiles; the measuring 
cycle was 0,5 min, The instrument was built into a rack, 
which was so balanced, that it sank freely along a pre- 
viously lowered series wire at about 5 m/min (profiler). 
The maximum operational depth of the instrument was 
700 m, As the overflow of the near-bottom water was 
to be registered, in general, only the last 200 m 
above the bottom were profiled,., 
Of the 107 profile stations, 103 could 
Current direction (DIR); 
Current velocity (VEL); 
Temperature (T); 
Salinity (S)s; 
plotted against the pressure (P), are shown as curves 
in Figs, 11 to 104. Only the calibration factors given 
by Messrs, Aanderaa were applied to the measurement 
values for DIR, VEL and T, and the curves were smoothed 
by the Formular 
Yan = Yı_zı + 0425+Y * 0,54+ Yayı * 0.25, 
whereby Yan 4 nth measurement value; further corrections 
were not applied, The salinity values were also pro- 
cessed in the same manner, after they had been com- 
puted from the conductivity values with the Rohde 
formula and corrected with an additive constant, The 
constants were obtained as means from the comparison 
between the values of the CTD probe, the bucket sampler 
(salinometer) and the profiler. 
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