Equipment and Methods 
Marine Physics: 
Vertical CTD profiles (temperature, salinity, pressure, chlorophyll, turbidity, oxygen) and 
10 | water samples at selected depths at all stations. 
' instrument’sensor typ S/N last calibration 
CTD S6 (Clean CTD) 09P56228 
p-sensor SBE9P 03.02.2014 
T-sensor SBE3T 5278 16.06.2017 
C-sensor SBE4C 3694 16.06.2017 
CTD S1 SBE911+ 09P21787 
p-sensor ' SBE9P 577 * 03.02.2014 
T-sensor SBE3T 16.06.2017 
C-sensor SBE4C _| 2886 ‘16.06.2017 
CTD S2 (back-up system) |! SBE911+ | 09P83014 
-sensor SBE9P 641 28.06.2011 
C-sensor SBE4C 3691 18.07.2016 
Deck Unit | SBE11+ P31787-0526 
Spare Deck Unit ' SBE11+ P25457-0585 
O2-sensor ' SBE43 11.04.2017 
Fluorometer & Turbidity WetlabECO 4738 04.05.2017 N 
. Benthos 
Altimeter Toledyn | 978 | 14.03.2002 
Rosette Sampler S1 _ 11 x Niskin 10 | 
Rosette Sampler S6 "10 x Niskin 101 N7 
(Clean CTD) 8 x GoFlow 
Vessel mounted sensors: 
‘ Thermosal 
| Fluorimeter for turbidity and 
chlorophyll 
SBE21 2148425-3315 | July 2017 
10 AU Turner July 2017 
Nutrients: 
Oxygen determination according to Winkler-Carpenter by means of a SIS Dissolved 
Oxygen Analyser (DOA) with photometric end point determination at selected depths. 
Continuous pH determination via the sea water pipe. 
Continuous phosphate, silicate, nitrite, and nitrate determination by MiniMon via the sea 
water pipe and daily reference samples. 
Determination of the pH value (CTD samples and continuously). 
Determination of depth of visibility by means of a Secchi disk at daylight stations. 
Filtration of surface water samples and freezing of the glass fiber filters for the 
determination of chlorophyll according to Jeffrey and Humphrey after the cruise. 
The determination of alkalinity of sea water was not feasible due to a malfunction of the 
‚nstrument. Only the first two stations could be sampled.