After several strenuous days of sampling and working in the lab, we are now in the home stretch with quite a few sites of interest in our path. In coordination with NOAA-PMEL, Rachel Van Giessen represents the University of Washington on this cruise. Her team of three is playing an important role in both the grand design of our research onboard and the collaboration between NOAA and UW. They are analyzing both dissolved oxygen (DO) and collecting samples for the labs back at the university to analyze for dissolved inorganic carbon (DIC). Rachel's team has been supporting in every way on board by deploying the CTD with me each day and helping wherever is needed. Now that we are off the coast of Washington, there are specific sites that NOAA is particularly interested in that are now our target sites. These sites have been chosen because of their value for comparing data in the same location over time. We have monitored the water chemistry for many years from these exact spots and are able to see the changes, year to year. Entering the Strait of Juan De Fuca, we will be increasing our workload to collect data all along the way.
|Rachel Vander Giessen, UW, titrating to find DO in a sample|
|Hannah and Kit work together to collect the water sample|
and poison the sample to stop the biological processes.
|Titration mobile station. |
Notice the cloudy precipitate in the glass vial.
|Rachel works on the deck with the chemicals used for DO calculations.|
Meet the team:Rachel Vander Giessen, 33, has had a passion for the ocean as long as she's lived in Seattle. All of her life. After graduating from high school, her passion propelled her to apply for the Maritime Marine Academy in Seattle, like so many of the full-time crew on board the Melville, but a subpar math score on the entrance exam kept her from pursuing this dream. Ironically, her degree now is in physics. "All it took was a good professor," she explained, to change her mind and turn her on to the mathematical world around us. After a few years of crewing private vessels through the inside passage to Alaska, she finished her degree and began volunteering at UW. It was on another research cruise as a volunteer with Jan Newton (UW) to repair the Cha Ba buoy (one of our sites of interest) that she was offered a permanent job with the university that has led to her work here with us.
|Rachel holds the clipboard and lets each person know when|
to start sampling. This helps avoid confusion and contamination.
|Hannah Glover sampling for DO.|
|"Kit" Kallista Angeloff|
|Kit stops the biological processes, |
preserving the chemistry of the sample.