Sruise Report, RV ATAIR, Cruise 0671013-1, Bremerhaven - Skagen - Aberdeen, 19 Jul - 11 Aug 2022 | 
13 
The CTD system worked well throughout the entire cruise, and the sensors produced reliable 
measurements. The differences between the redundant sensors were small and mostly within 
the uncertainty range as specified by the manufacturer and confirmed by calibration. Larger 
differences were observed in rough conditions or when a larger number of particles within the 
water column clogged the sensor packs temporarily. NMEA-formatted GPS data was always 
avallable and added to the casts. 
PX 11 
AS) 
S-1D181001 
S-1D181004 
S-1D181005 
S-1D181017 
S-1D181011 
S-ID181006 
S-1D191007 
ET 
Volünte a Closing Dept 
General Öceanics | 10L bottom 
bottom 
5 dbar, 10 dbar and 
> 100 dbar 
5 dbar 
5 dbar, 10 dbar and 
> 100 dbar 
er 
5 dbar 
GE 
5 dbar 
Table 5.2. Overview on the Niskin bottle set-up and sampling scheme of cruise 0671013-1. 
All Niskin bottles were checked at the beginning of the cruise and then closed during the upcast 
at the designated sampling levels 
5.3 
Water Sampling with respect to Salinity 
Water sampling was carried out at all stations during cruise 067/013-1 for the purpose of 
checking the quality of the CTD-derived conductivity and, consequently, salinity. Exceptions 
were made at the test station at the beginning of the cruise and at a repeated station where 
anly large-volume samplers were used. Water samples were mostly taken from Niksin bottles 
oslosed at 5 dbar near the surface and at the bottom (see Table 5.2). The bottles were 
numbered and rinsed three times with seawater before being filled and sealed airtight. The 
water samples were analysed using an OSIL AUTOSAL 8400B salinometer. For 
standardisation, IAPSO standard seawater batches P-164 and P-165 were used. All samples 
were assigned a BSH sample identification number similar to a Bedford number.