Cruise Report, RV ATAIR, Cruise 0671021-1, Bremerhaven - Thyboron —- Aberdeen, 18 Jul - 10 Aug 2023 | 39 
In order to check on quality performance of the TSG system, water samples were taken once 
a day directly from the TSG system and analysed with an AUTOSAL salinometer. Standard 
aperational procedures (SOP) to assess the data quality of the near-surface temperature and 
sonductivity/salinity measurements from the TSG system installed aboard RV ATAIR are pres- 
antly under development on a national level and carried out in collaboration with the German 
Marine Research Alliance (DAM). Once the SOP have been implmented, and the data quality 
sontrol has been finalised and documented, resulting data will be made publically available via 
submission to the PANGAEA database (https:/www.pangaea.de). Regarding the dual-wave- 
length ECO sensor data for fluorescence and turbidity, there are not yet any defined SOP, and 
any data quality check is presently not carried out regarding near-surface mesurements for 
fluorescence and turbidity. 
SBE21 
SBE38 
WetLabs ECO 
FLNTURT 
MS 
thermosalinograph, 
conductivity and in- 
ternal temperature 
external temperature 
fluorescence and 
turbidity 
Serial NumBer 
+5 
4 
O5 2 
FLNTURT-5883 
Calibration DA 
01 Jun 2023 
31 May 2023 
Table 7.1. Sensor specification of the Thermosalinograph/fluormeter system operated during cruise 
0671021-1 
Figures 7.3 provides an overview on the temporal evolution of the TSG/ECO-sensor-derived 
properties. TSG-derived temperature at a depth of 4 m ranged from 11.3°C to 19°C and was 
an average 15.8°C. TSG-derived salinity ranged from 27.59 to 35.24 and was on average 
33.97. Fluorescence ranged from 0.17 ug/l to 4.17 ug/l and was on average 0.72 yug/l. Turbidity 
ranged from 0.17 NTU to 4.33 NTU and was on average 0.38 NTU. Figures 7.4 to 7.7 show 
spatial distributions of the respective near-surface temperature, salinity, fluorescence and tur- 
bidity.