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Cruise Report, RV ATAIR, Cruise 0671021-1, Bremerhaven - Thyboron —- Aberdeen, 18 Jul - 10 Aug 2023 
Purpose of the 
Cruise and Research 
Objectives 
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RV Atair 
Cruise 0671021-1 
18 Jul - 10 Aug 2023 
Bremerhaven-Thybaran-Aberdaen 
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Figure 1.1 Track of cruise 0671021-1 with RV ATAIR and locations of corresponding hydrographic sta- 
tions shown as red markers. Text labels denote station names. Thin grey lines highlight limits of the 
various Exclusive Economic Zones (EEZ) according to the Maritime Boundaries Geodatabase version 
11.0 of Flanders Marine (2019). 
Cruise 067/021-1 with RV ATAIR served to conduct the annual large-scale North Sea Summer 
Survey (NSSS) of the BSH. Surveys similar to cruise 067/021-1 have been undertaken annu- 
ally by the BSH since 1998. These surveys generally follow a predefined net of standard sta- 
tions forming zonal sections crossing the North Sea at different latitudes between 54°N and 
60°N. Additional stations are located to the south of 54°N forming a loop-like station pattern 
that stretches to about 52°N near the southern entrance to the North Sea. The annual North 
Sea Summer Survey is typically carried out at or close to the time of the expected maximum 
stratification and phytoplankton productivity having passed its peak.