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Sandy’s Underwater Sandscapes

By Guest PostNovember 18, 2012Environmentarthur trembanis, artificial reef, autonomous underwater vehicle, auv, broadkill beach, cape henlopen, carter duval, coast, currents, data, delaware, doug miller, ecosystem, fingerprint, floor, geological imprint, geological markings, gps, hard bottom, hugh r sharp, hurricane sandy, indian river inlet, justin walker, map, marine life, maryland, mid atlantic shores, natural environment, new jersey, ocean, post, pre, redbird reef, research vessel, sand formations, seafloor, sediment, sonar, storm, storm metrics, trevor metz, underwater, val schmidt, virginia, weapons

UD researchers studying ‘fingerprint’ left on seafloor by Hurricane Sandy

Beneath the 20-foot waves that crested off Delaware’s coast during Hurricane Sandy, thrashing waters reshaped the floor of the ocean, churning up fine sand and digging deep ripples into the seabed. Fish, crustaceans and other marine life were blasted with sand as the storm sculpted new surfaces underwater.

UD scientists cued up their instruments to document the offshore conditions before, during and after Sandy’s arrival to scrutinize the differences and better predict the environmental impact of future storms. (more…)

Scientists Discover New Trigger for Immense North Atlantic Ocean Spring Plankton Bloom

By Guest PostJuly 7, 2012Environmentadam huxtable, amala mahadevan, atlantic ocean, biological pump, bjarni saemundsson, carbon dioxide, climate, climate on earth, CO2, craig lee, diatoms, don rice, eddies, emily kallin, eric d asaro, fossil fuel, global carbon cycle, holiday fireworks, mary jane perry, michael ohmart, microscopic plants, modulate, north atlantic bloom, not sunlight, nsf, ocean physics, oceanic cycling, oxygen, photosynthesis, physical biological model, phytoplankton, research vessel, silica, sun, surface warming, university of maine, university of washington, us beachgoers, whirlpools, whoi, zooplankton

Ocean eddies help jump-start plankton blooms that spread across hundreds of square miles

On this July 4^th week, U.S. beachgoers are thronging their way to seaside resorts and parks to celebrate with holiday fireworks. But across the horizon and miles out to sea toward the north, the Atlantic Ocean’s own spring and summer ritual unfolds. It entails the blooming of countless microscopic plants, or phytoplankton.

In what’s known as the North Atlantic Bloom, an immense number of phytoplankton burst into existence, first “greening,” then “whitening” the sea as one or more species take the place of others.

What turns on this huge bloom, what starts these ocean fireworks? Is it the Sun’s warmth? (more…)

Sailing in a Sea of Microbes

By Guest PostMarch 4, 2012Sciencealgae, Arctic, atmospheric chemistry, bacteria, biogeochemical cycles, biomass, carbon dioxide, Chile, climate, daniel stolte, easter island, Environment, food production, genome, Germany, global warming, grassroots initiative, greenhouse gas, matt sullivan, melissa duhaime, microbe, ocean water, oceans, oxygen production, pacific ocean, research vessel, saguaro cacti, sequence, tara oceans, ua, university of arizona, wolves, world of viruses, world of webs

Researchers led by Matt Sullivan at the UA are among the first to dive into the world of viruses drifting through the world’s oceans.

Surrounded by the deep blue of the Pacific Ocean stretching from horizon to horizon, a lonely dot is glinting in the sun. It is the aluminum hull of a sailboat, a 118-foot schooner with white sails billowing from two masts.

On the deck, crewmembers and scientists are milling about. Commands are flying back and forth, and soon a strange contraption consisting of tubes clustered around an array of sensors dangling from a crane is lowered into the water, until it disappears in the clear blue depths. (more…)

Woods Hole Oceanographic Institution to Lead Expedition to Measure Radioactive Contaminants in the Pacific Ocean

By Guest PostJune 3, 2011Environmentacoustic doppler current profiler, adcp, assessment, atlantic, cesium 137, contamination pathways and dispersion, drinking water standard, fukushima nuclear power plant, fukushima plant, gordon and betty moore foundation, gulf stream, iodine and cesium isotopes, Japan, kaimikai o kanoloa, ken buesseler, kuroshio current, levels and dispersion of radioactive substances in the pacific ocean, marine organisms, moore funding, nick fisher, ocean current, phytoplankton, radiation, radioactive contaminants, radioactivity in ocean, radioisotope geochemistry, radionuclides, reactors, research vessel, spain, susan avery, tepco, tokyo electric power company, tokyo institute of technology, university of bremen, university of hawaii, us environmental protection agency, vicki chandler, whoi, woods hole oceanographic institution

The Woods Hole Oceanographic Institution (WHOI) will lead the first international, multidisciplinary assessment of the levels and dispersion of radioactive substances in the Pacific Ocean off the Fukushima nuclear power plant—a research effort funded by the Gordon and Betty Moore Foundation.

“This project will address fundamental questions about the impact of this release of radiation to the ocean, and in the process enhance international collaboration and sharing of scientific data,” said Vicki Chandler, Chief Program Officer, Science at the Gordon and Betty Moore Foundation. “It is our hope that through this adverse event, we can increase our current knowledge about various natural and man-made sources of radioactivity in the ocean, and how they might ultimately impact ocean life and health around the world.” (more…)

WHOI Scientists Map and Confirm Origin of Large, Underwater Hydrocarbon Plume in Gulf

By Guest PostAugust 19, 2010Environment, Scienceautonomous underwater vehicleauv, bp deepwater horizon, cameron mcIntyre, christopher reddy, conductivity, ctd, dan torres, depth, endeavor, gulf of mexico, marine geochemist, natural oil seeps, oil spill, oxygen, petroleum hydrocarbon, plume of hydrocarbons, research vessel, richard camilli, scientists, sentry, sentry auv, susan k. avery, temperature, tethered yearlong spectrometer, tethys, underwater mass spectrometer, whoi, woods hole oceanographic institution

Scientists at the Woods Hole Oceanographic Institution (WHOI) have detected a plume of hydrocarbons that is at least 22 miles long and more than 3,000 feet below the surface of the Gulf of Mexico, a residue of the BP Deepwater Horizon oil spill.

(more…)

Tag Archives: research vessel

Sandy’s Underwater Sandscapes

Scientists Discover New Trigger for Immense North Atlantic Ocean Spring Plankton Bloom

Sailing in a Sea of Microbes

Woods Hole Oceanographic Institution to Lead Expedition to Measure Radioactive Contaminants in the Pacific Ocean

WHOI Scientists Map and Confirm Origin of Large, Underwater Hydrocarbon Plume in Gulf