38 | Cruise Report, RV ATAIR, Cruise 0671021-1, Bremerhaven - Thyboron —- Aberdeen, 18 Jul - 10 Aug 2023 
* MN 
A. 
“Absolute Wind 
"Bf] 
5 min mean} 
539° 
17° 
55° 
4 
33° 
RV Atair 
Cruise 0671021-1 
78 Jul - 10 Aug 2023 
Sremerhaven-Thvboren-Aberdeen 
51° dd ZI 
89W 6° 
4° 
90 
n° 
? 
n© 
6° 
"ml 
0 
nr 
10° 12°E 
Figure 7.2. Spatial distribution of the absolute wind strength and direction during cruise 0671021-1. Wind 
information is reported on the Beaufort scale (see colour bar) and averaged over 15 min intervals. The 
sfick orientation denotes the wind direction. 
7.2 Thermosalinograph and Fluororescence & Turbidity 
The thermosalinograph (TSG) system aboard RV ATAIR is operated as a throughflow system 
with the pure seawater inlet installed in the vessel’s hull at a depth of 4 m. It consists of a 
SBE21 Seacat thermosalinograph device delivering near-surface conductivity and internal 
temperature measurements that are matched with an additional external temperature sensor 
of type SBE38 located near the water inlet. Next to the TSG system, a dual-wavelength sensor 
of type WET Labs Environmental Characterization Optics (ECO) is installed delivering near- 
surface underway measurements for fluorescence and turbidity through optical measurements 
at fixed wavelengths. Table 7.1 provides an overview on sensor specifications. Data are rec- 
orded at time steps of 10 sec.