Probing the chill
Sandra Potter
CTD (conductivity temperature depth) devices are used to detect how the conductivity and temperature of the sea water column changes relative to depth. Conductivity is a measure of how well a solution conducts electricity, and is directly related to salinity. As with temperature and depth, it is an important physical characteristic to consider when studying many different ocean processes, including marine animal distributions. The instruments may be lowered many kilometres – this one, into a dark and glassy Southern Ocean.
BEAKER STREET SCIENCE PHOTOGRAPHY PRIZE
This photograph was a finalist in Beaker Street’s annual Science Photography Prize. This highly-respected prize invites all Tasmanians to showcase the wonders of our extraordinary part of the world — which is teeming with science and scientists. Finalist images are displayed at the Tasmanian Museum and Art Gallery during Beaker Street Festival each August, with great prizes on offer for Judges’ and People’s Choice winners.
The Beaker Street Science Photography Prize would not be possible without the support of Full Gamut, Tasmania’s premier fine art printers and long-time sponsor of this competition. Many thanks also go to Pennicott Wilderness Journeys, which donates a generous prize for the People’s Choice winner.
