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Float 312, where are you?
The ocean is so enormous, even a fleet of 2,338 ocean-monitoring instruments can sail into it and go largely unnoticed. That's what floats 312 and 393 were doing until something extraordinary happened: People found them. Valdes estimates that fewer than three floats a year go missing. Then, this winter, float 312 beached in the Bahamas, after traveling more than 1,000 nautical miles (1,850 km) since its launch east of central Florida in Jun 2004. Float 393 ended up aboard a fishing boat off Barbados.
Magazine Article
Under-ice floats offer a 'breakthrough'
When the Wood Hole Oceanographic Institution physical oceanographers Peter Winsor and Breck Owens set out to explore the largely unknown currents beneath the polar sea ice of the Arctic Ocean, they had to design an oceanographic instrument called floats, which drift, nose pointed up, at various depths through the oceans while measuring water temperature and salinity. Nevala discusses the development of the floats.
Magazine Article
Scientific (and surfing) safari
As a graduate in the MIT/WHOI Joint Program, Eric Montie is working to develop methods to better understand if toxic chemicals found in the marine environment can affect brain development in dolphins. Among the chemicals Montie is exploring are flame retardants known as polybrominated diphenyl ethers, or PBDEs, which were widely used in furniture, foam, plastics, and computers before some mixtures were banned in 2004.
Magazine Article
Big whale, big sharks, big stink
A tanker first spotted the whale on Sep 9 about 24 miles south-east of Nantucket MA, it floated belly up--species unknown, cause of death a mystery. Michael Moore, a biologist at Woods Hole Oceanographic Institution (WHOI), scrambled into action, he gathered several sharp flensing knives, like those once used by whalers, to perform a messy but necessary partial necropsy to learn more about the whale. Then he and a team from the Cape Cod Stranding Network and the National Oceanic and Atmospheric Administration set out on Sep 11 aboard WHOI's rapid-response coastal research vessel Tioga. Here, Nevala details the expedition to perform whale necropsy at sea.
Magazine Article
Action, camera ... lights
Exploring the seafloor can be like using a flashlight to find something in a dark basement. Just one-third of a mile beneath the sea surface, ambient light fades to black, requiring oceanographers to beam their own light to see what's around them and to take photos and video of the deep. Until now, illumination has come mainly from multiple lights mounted on deep-sea vehicles. Here, Nevala features the \"deep-sea light post\", designed by the Woods Hole Oceanographic Institution scientists, a tall and portable light system that can blaze with a single 1,200-watt bulb on top of an 8-foot pole, powered by five 100-pound batteries in watertight housings.
Magazine Article
A glide across the Gulf Stream
Nevala discusses Spray glider's historic glide across the Gulf Stream. The glider was launched in Sept 2004 south of Nantucket and recovered seven weeks and 965 km later off Bermuda. It was the first time a remote-controlled glider crossed the Gulf Stream.
Magazine Article
On the seafloor, a parade of roses
Three generations of scientists have returned to the Galapagos Rift since 1977 to find three generations of hydrothermal vent communities, which they named Rose Garden, Rosebud, and Rose Bowl. Nevala highlights the details.
Magazine Article
Settling on the seafloor
The tiny larvae of deep-sea animals that form thriving communities of life around seafloor hydrothermal vents must find the right conditions for them to settle down, live, grow, and reproduce. Understanding the factors that determine why larvae settle is a key first step to understanding the bigger picture of how seafloor life has developed across the wide expanse of the ocean throughout time.
Magazine Article