Acknowledgement 
All participants accomplished a big amount of work in a good temper and made the North 
Sea Summer Survey — despite the reduced head count — a big success! Thank you very 
much to all of you! 
The help and professional support of captain Antony Hobin and his crew is gratefully 
acknowledged. 
Holger Klein 
Bergen, August 30°, 2015 
Appendix 1: List of samples 
"CTD-Pprofiles with rosette: 
Secchi depth: 228 
Salinity: 223232 
Stations for radioactivity: 
Oxygen: 
pH-value: 
Chlorophyll: 
Alkalinity: 2238 
d180 0 
d1836 
Radioactivity (artificial nuclides): 
"95 stations 
"35 stations (daylight stations only) 
222 samples 
"57 stations 
“40 samples 
40 samples 
37 samples 
40 samples 
40 samples 
40 samples 
36 samples a 2 35-I-drums Strontium-90 (pure) 
36 samples 1-I-bottles Tritium (pure) 
36 samples a 100 | Plutonium and Americium 
(concentrated) 
57 samples ä 150 | Caesium-137 (concentrated) 
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