Farewell San Francisco!

The NOAA Ship Ronald Brown left the Exploratorium dock Monday afternoon. Our collaborator Bill Cochlan shared these photos of the ship leaving the Bay, and the new at-sea blog coordinators Spencer Showalter and Meghan Shea put together a short video that perfectly captures the excitement of young scientists heading to sea!

Ring Around the Rosette: The Science of Seawater Sampling

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Taking CTD Samples offshore from Baja California Sur, Mexico. Photo credit: Melissa Ward

In the open ocean, water can be thousands of feet deep. When oceanographers need to test seawater from such depths, how do they get their samples? The most experienced divers can only go to a few hundred feet, and even then, a diver can only bring back as much seawater as he or she can carry.  Therefore, specialized equipment is needed in order to obtain samples from the deep ocean. A CTD rosette is often the equipment of choice for such a task. Continue reading “Ring Around the Rosette: The Science of Seawater Sampling”