Photo of the Week

We are excited to bring back our Photo of the Week section so stay tuned for new content coming soon! In the meantime, take a look at these fantastic pictures from our teachers.

Cool Science Tools

June 1, 2020
TAS ’18 Martha Loizeaux shares this photo of the CTD (Conductivity, Temperature, and Depth probe) “rosette” rising from the depths.

Photo: Martha Loizeaux

At some of our stations, we lower a big and important science tool (called a rosette) into the ocean that contains niskin bottles (bottles used for water sampling) and a Conductivity, Temperature, and Depth meter (CTD). As the rosette is lowered into the depths and raised back up, the scientists can remotely operate the open niskin bottles to snap shut at specific depths. This allows each bottle to come up to the surface with a sample of water from many different depths! Meanwhile, the CTD can take measurements of conductivity (which indicates the salinity of the water), temperature, and pressure, among other things. Scientists have thought of many ways to collect A LOT of data at one time.
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8 photos for CTD · Clear

Taking the Ocean’s TemperatureMay 17, 2021Cool Science ToolsJune 1, 2020Reeling in DataNovember 18, 2019Catching Plankton and Catching OnJune 5, 2017Handle with care: On her oceanographic mission in 2012, TAS Sue Oltman was trained on how to deploy and retrieve underwater conductivity, temperature, and depth (UCTD) probes.February 6, 2017Handle with care: On her oceanographic mission in 2012, TAS Sue Oltman was trained on how to deploy and retrieve underwater conductivity, temperature, and depth (UCTD) probes.February 6, 2017Survey Technicians Allen and Bill teach TAS Greg Cook how to launch the Conductivity Temperature Depth Probe (or CTD).September 8, 2014“We also took a Conductivity, Temperature and Depth (CTD) profile using the CTD rosette on the 21st, collecting water near the bottom at 55m and other levels on the way to the surface.”January 14, 2013