A6 
Cruise Report, RV ATAIR, Cruise 0671021-1, Bremerhaven - Thyboron —- Aberdeen, 18 Jul - 10 Aug 2023 
x - u M 
Bl 
&  aration 
a 
18 Jul 2023 
22 Jul 2023 
15:57 
17:27 
narrowband 
45 
‘00 
22 Jul 2023 | 22 Jul 2023 
16:02 
narrowband 
45 
100 
% ] 
22 Jul 2023 | 
25 Jul 2023 
04:36 
16:04 
narrowband 
45 
*00 
25 Jul 2023 
04:39 
27 Jul 2023 
18:18 
narrowband 
45 
"00 
5 
27 Jul 2023 | 
18:19 
29 Jul 2023 
14:05 
Nnarrowband 
45 
100 
3 
30 Jul 2023 
01:19 
30 Jul 2023 
13:32 
narrowband 
| 120 
400 
01 Aug 2023 01 Aug 2023 
06:39 06:39 
narrowband 
1920 
400 
3 | 
01 Aug 2023 | 03 Aug 2023 
06:40 21:57 
narrowband 
120 
400 
03 Aug 2023 | 
A 
07 Aug 2023 
21:57 
05:03 
narrowband 
120 
400 
10 07 Aug 2023 10 Aug 2023 
05:03 06:27 
narrowband 
120 
400 
Table. 7.2. VMADCP settings for different periods of cruise 0671021- 
The VMADCP worked properly during the whole cruise, and the data are of good quality. Some 
exceptions have to be made due to very bad weather between 07 August 2023 and the end of 
zruise leading to disturbed data due to prevalent air bubbles in the water layer beneath the 
ship. The data need further additional post-cruise quality control and post-processing steps to 
obtain a final dataset, e.g. detailed inspection and manual editing of suspicious measurements. 
A first overview shows clear tidal signals in the shallow parts of the North Sea, which need to 
be removed for further analysis of the currents. Highest velocities due to tides were measured 
in the Pentland Firth and south of the Shetland Islands (Figures 7.8 and 7.9).