FIELD STUDY 
Investigations in Wind Farms 
in the North Sea 
AU LEE 
ae EEE EN E 
x 
'n total, four ship campaigns were done 
Nith the research vessels LUDWIG 
>RANDTL (Hereon) and ATAIR (BSH) 
around offshore wind farms in the 
=xclusive Economic Zone in the German 
3ight in the years 2016, 2018, 2019 
and 2020. 
The study areas were the wind farms in 
the area N-4 north of Helgoland and in 
the areas N-3 and N-2 north of the East 
-risian Islands. 
ın addition, punctual investigations 
were conducted in the areas N-5/N-6 
and at other stations in the coastal sea. 
The study areas are shown in Fiqure 1. 
During the ship campaigns, the resear- 
chers took water samples with Niskin 
Jottles and surface sediment samples 
with a box corer. As far as possible, 
they processed and filtrated the water 
samples on board. 
The sediment samples were frozen and 
sieved in the laboratory of the Helm- 
holtz-Zentrum Hereon (< 20 um fraction). 
Afterwards, the researchers analysed 
the metal content of the samples using 
the developed method in the laboratory 
of the Helmholtz-Zentrum Hereon. 
Study Areas 
Jam 2016 (N-4, N-5} 
2018 (N-2, N-3, N-4) 
2019 (N-2, N-3, N-4, N-6} 
2020 (N-3, N-4} 
Wind Farm Areas 
Aran 
Borders 
—' Coastal Sea . 
—— Continental Shelf / Exclusive Economic Zone 
Pl 
el 
‚Brämerhaven 
iedersachser 
ans burg 
Insum 
Schleswi 
"a-Holstein 
u 
Externe Datenquellen: BKG 
Seodätisches Datum: ETRS 8‘ 
fartenproiektion: LAEA 
3SH/QM