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Today was a very busy day on the R/V Neil Armstrong! Our morning was spent retrieving and casting data collecting instruments. First, we searched for and collected two CPIES. These are inverted echo sounders (IES) that have the ability to monitor bottom-pressure and current. These tools help scientists better understand the physical changes of the ocean. When at the approximate location, we sent a unique signal to release the CPIES from the bottom. Once the release was confirmed, we conducted a visual search for it on the surface. It was then brought on board with grappling hooks and a winch. One of the CPIES collected was released on a previous STEMSEAS cruise in January 2023!
Next up was a CTD rosette–We had a wonderful opportunity to help prepare and cast the instrument. It collects a wide variety of data including depth, salinity and temperature and transmits directly to the lab. We attached Styrofoam cups to the instrument and observed the affect of pressure on their size.
In the afternoon we had a productive session brainstorming collaborations for future expeditions. Ideas were centered around ensuring exciting experiences for students from all backgrounds.
After dinner we had a presentation on moorings from expert John Kemp and released our second Argo float of the trip. A Bio-Argo, with the capabilities to monitor pH, Nitrate levels and chlorophyll-a fluorescence. This will be the 2,000 Argo float released by WHOI! STEMSEAS is excited to be a part of this amazing milestone!
Mike Sanderson | Fernbank Science Center
