L 
08:38 — 08:53 Station GNO08S: 
Secchi depth and CTD profile with rosette sampler 
W&S: Bft. 2, 350°, 1020 hPa, TA = 19.9 °C, fine, Tw= 17.5 °C, S = 34.46 psu. 
12:24 — 13:20 Station GNO009 (Outer Well Bank): 
Secchi depth, Clean-CTD profile with rosette sampler and nutrients. RA: Cs-137, Sr- 
90, H-3, Pu, Am, Cm. Trace metals. 
W&S: Bft. 1-2, 230°, 1021 hPa, Ta = 18.7 °C, fine, Tw= 17.5 °C, S = 34.42 psu. 
Three CTD casts due to problems with the automatic pressure release for opening the 
GoFlow bottles at 10 m depth. Last cast (used for sampling) was taken with open 
GoFlow samplers. 
There is a pressure off-set of +2.47 dbar at the S6 pressure sensor. 
14:09 — 14:54 Neuston trawl for visible pollutions (ViPo 77): 
Start: 53° 56.39’ N; 003° 10.00’ E 
=nd: 53° 55.40’ N; 003° 12.58’ E 
19:07 — 19:20 Station GNO09A: 
CTD profile with rosette sampler. RA: Cs-137. 
W&S: Bft. 2. 160°, 1022 hPa, TA = 17.2 °C, fine, Tw= 19.2 °C, S = 34.13 psu. 
Jue to strong traffic and strong tidal currents the position was slightly shifted to the 
SW. 
22:36 — 22:53 Station GNO0O9B: 
CTD profile with rosette sampler. RA: Cs-137, Sr-90, H-3, Pu, Am, Cm. 
W&S: Bft. 4-5, 130°, 1022 hPa, Ta = 17.4 °C, Tw= 18,9 °C, S = 34.75 psu. 
Monday, August 14", 2017 
v 01:27 — 01:39 Station GNO010 (west of Den Helder): 
Clean-CTD profile with rosette sampler and nutrients. RA: Cs-137. Trace metals. 
N&S: Bft. 4, 140°, 1020 hPa, Ta = 17.2 °C, fine, Tw= 18.6 °C, S = 34.91 psu. 
05:05 — 05:16 Station GN011 (west of Ijmuiden): 
Secchi depth, CTD profile with rosette sampler and nutrients. RA: Cs-137. 
W&S: Bft. 4, 170°, 1020 hPa, Ta = 17.1 °C, partly cloudy, Tw= 19.5 °C, S = 34.89 
DSU. 
10:17 — 10:36 Station GN012 (west of Hoek van Holland): 
Secchi depth, CTD profile with rosette sampler and nutrients. RA: Cs-137, Sr-90, H-3, 
Pu, Am, Cm. Trace metals. 
W&S: Bft. 2, 80°, 1019 hPa, Ta = 21.7 °C, fine, Tw = 20.0 °C, S = 34.44 psu. 
13:59 — 14:14 Station GN013 (Rabsbank): 
Secchi depth, CTD profile with rosette sampler and nutrients. RA: Cs-137, Sr-90, H-3, 
Pu, Am, Cm. Trace metals. 
W&S: Bft. 2, 120°, 1017 hPa, TA = 20.5 °C, fine, Tw= 19.2 °C, S = 34.99 psu. 
16:33 — 17:20 Neuston trawl for visible pollutions (ViPo 78): 
Start: 51° 55.56’ N; 002° 22.27’ E 
End: 51° 57.00’ N; 002° 19.31’ E 
19