Foundation Commits $4 million to Deep Argo Floats

Standard profiling floats are limited to the upper 2000 meters of the ocean, stopping their descent before entering the deepest layers of the ocean. Deep Argo floats, reminiscent of spherical lanterns, can dive to 6000 meters to shed light on conditions in abyssal zone. They incorporate the Sea-Bird Scientific Deep Argo CTD (SBE 61) for high-accuracy measurements required to resolve subtly changing conditions in the deep ocean. The Paul Allen Foundation has committed over $4 million to the Jump-Starting Deep Argoproject, aiming to move Deep Argo floats out of the pilot phase and into full operation.

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The Frozen 41s

A quick look at the map of the global Argo array reveals that the floats inhabit all parts of the world, including some in Earth’s frigid zones. Recognizing the importance of polar deployments, Sea-Bird Scientific conducted unique experiments to test the CTD’s ability to withstand extreme cold, exposing an SBE 41 Argo CTD to a series of freezing/thawing/recalibration trials.

To learn more about freezing experiments, as well as other accuracy-defining tests, read more about Sea-Bird Scientific’s characterization of Argo CTD.

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Using a Pump and TC-Duct for Optimal Dynamic Accuracy

Virtually every Sea-Bird Scientific CTD incorporates a pumped flow path, and for good reason: unless the flow rate through the sensors is known and constant, the response time of the conductivity cell will be continuously changing. Without a pump to steady the flow, the CTD is liable to calculate salinity from temperature sampled at depth A and conductivity from depth B. In areas of rapidly changing conditions, depth B could have significantly different properties, leading to severe spiking in salinity and other derived parameters. Read about how Sea-Bird Scientific uses a pump and a carefully designed TC duct to avoid salinity spikes without reducing data resolution.

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Meet our People: Barry Lyon, President

Our new President, Barry Lyon, is responsible for building on Sea-Bird Scientific’s legacy of innovation and delivering on our commitments. Barry was most recently Vice President, Global Marketing at Hach. While in this role, he collaborated with the scientific community through leading Hach’s technical training center , managing regulatory affairs with the US EPA and ISO committees, and serving on several committees for the American Water Works Association.

He holds a Bachelor of Science in Business Administration from the University of Oregon, and a Masters of Business Administration from Loyola University Maryland. When not at work, Barry enjoys spending time with his wife Tracy and daughter Avery, floating on the water with a paddle or oars in his hands, in the mountains with a bicycle, or with skis or trail-running shoes on his feet.

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