11:23 - 11:50 Station GNOO3/ELBE1: 
Secchi depth and CTD profile with rosette. 
pH value, alkalinity, chlorophyll and O, at 5 m depth and about 3 m above bottom. 
RA: Cs-137, Sr-90, Pu, H-3. 
OG: 1x10 L nonpolar, 1x10 L nonpolar, 1x5 L polar, 5 m depth. 
W&S: Bft. 3-4, 100°, 1012 hPa, TA = 20.0 °C, fine, Tw = 19.4 °C,S = 32.89 psu. 
15:11 — 15:39 Station GNO003A: 
CTD profile with rosette sampler, 
RA: Cs-137, Sr-90, Pu, H-3. 
OG: 1x100 L nonpolar, 1x5 L polar, 5 m depth. 
W&S: Bft. 4, 330°, 1012 hPa, Ta = 21.1 °C, overcast, Tw= 19.5 °C, S = 33.22 psu. 
18:23 — 18:56 Station GN007 (Borkumriffgrund): 
Secchi depth and CTD profile with rosette sampler. 
oH value, alkalinity, chlorophyll and O, at 5 m depth and about 3 m above bottom. 
RA: Cs-137, Sr-90, Pu, H-3. 
OG: 1x100 L nonpolar, 1x10 L polar, 1x5 L polar, 5 m depth. 
W&S: Bft. 5, 340°, 1014 hPa, Ta = 18.8 °C, overcast, Tw= 19.5 °C. S = 33.80 psu. 
22:06 — 22:17 Station GNO07A: 
CTD profile with rosette sampler. 
RA: Cs-137, Sr-90, Pu, H-3. 
W&S: Bft. 3, 330°, 1015 hPa, TA = 18.0 °C, obscured sky, Tw= 19.1 °C, S = 34.90 
DSU. 
Thursday, August 30", 2018 
J 01:27 — 01:55 Station GNO008: 
CTD profile with rosette sampler. 
pH value, alkalinity, chlorophyll and O, at 5 m depth and about 3 m above bottom. 
RA: Cs-137. 
OG: 1x100 L nonpolar, 1x10 L polar, 5 m depth. 
W&S: Bft. 5-6, 340°, 1017 hPa, Ta = 16.8 °C, obscured sky, Tw= 17.9 °C, S = 34.48 
PSU. 
08:24 — 09:06 Station GNO09 (Outer Well Bank): 
Secchi depth, CTD profile with rosette sampler. 
pH value, alkalinity, chlorophyll and OO, at 5 m depth and about 3 m above bottom: 
tenfold determination of O,at 5 m. 
RA: Cs-137, Sr-90, Pu, H-3. 
OG: 1x100 L nonpolar, 4x10 L polar, 5 m depth. 
W&S: Bft. 2, 250°, 1022 hPa, Ta = 19.2 °C, cloudy, Tw= 16.6 °C, S = 34.57 psu. 
Sample bottle S-1ID181002 was leaking, the lower O-ring seal was missing and has 
been replaced. Sample bottle with Bedford ID 184015 was not closed. 
13:09 — 13:21 Station GNO09A: 
CTD profile with rosette sampler. 
RA: Cs-137. 
W&S: Bft. 3, 340°, 1023 hPa, Ta = 
AL, 
18.1 °C, fine, Tw= 18.5 °C, S = 34.39 psu. 
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