By Kira Lange, GEOMAR Helmholtz Centre for Ocean Research Kiel Bzzz bzzz. The alarm rings at 3.45 am. Still half asleep, we check the ship’s position and status of the Conductivity-Temperature-Depth-device, in short, CTD. At which depth is the CTD? Thank God, there is still 400 m to go. This means there is still enough … Continue reading The Night CTD