Since we came to Spitsbergen in 2004, we are using a CTD (Conductivity, Temperature, Depth). This instrument is recording salinity and temperature of the sea at every depth. At the moment, brines are accumulating at the bottom of the fjord, so much that this very cold and salty water drained off pack ice is filling up the fjord. This spectacular event is fascinating for oceanographers. To better understand it, I'm going every day on pack ice to send the CTD down with a winch.