Sentences with phrase «from ocean bottom»

They have found that heat and other emissions from the Arctic seafloor do not rise much higher than 500 to 1000 meters up from the ocean bottom.

The argument that the only way methane can escape from below the Arctic ocean is from heat conducting downward from the ocean bottom may be in error.

Changes in average sea level over the past 250,000 years based on data from cores removed from the ocean bottom.

44 present sea level (meters) Height above or below Today's sea level present sea level (meters) Height above or below Height above or below present sea level (feet) Figure 20.9 Changes in average sea level over the past 250,000 years based on data from cores removed from the ocean bottom.

Methane hydrates, after all, were largely responsible for corrupting the containment dome intended to stop the 2010 Deepwater Horizon oil spill rising from the ocean bottom; the viscous mixture clogged the dome and a redirection pipe intended to take leaking oil to a tanker waiting above.

Other papers in the issue examine how deep sea sediments may affect seismic wave readings, and evaluate how the Cascadia Initiative's data collection from ocean bottom seismometers has improved over the first three years of the study.

Methane is a potent greenhouse gas, so scientists are interested in how it might be released from the ocean bottom.

Sato et al. (p. 1395, published online 19 May) describe the huge displacements from ocean bottom transponders — previously placed directly above the earthquake's hypocenter — communicating with Global Positioning System (GPS) receivers aboard a ship.

Not exact matches

STEP 5 Sometimes the cable is left to sink to the ocean floor and rest on the sandy bottom, but for the best protection from ship anchors, fishing nets and shark attacks, a sea plow or remotely operated vehicle may be used to bury cable between 1.5 and 3 metres below the bottom.

Bacteria thrive virtually everywhere on Earth — from sub-zero temperatures to over 750 degrees F (in hydrothermal vents at the bottom of the ocean), and in widely varying oxygen, pressure and nutrient conditions.

At some point something happens in Arsene's head and we just spring back from the bottom of the ocean to sea level.

Different kinds of plastic may be suspended at different depths — a dreadful rainbow of rubbish spanning the ocean from top to bottom — but no one has done the research to find out.

NoMelt's ocean bottom seismometer array, with the assistance of Lamont's seismic research ship the Marcus G. Langseth, recorded data from earthquakes and other seismic sources from the middle of the plate over the span of a year.

The debris probably was dredged up from the bottom of the moon's ocean by water percolating through the rocky core, and then...

The bottom map shows aerosol emissions from ships crossing routes in the Indian Ocean and South China sea from 2010.

The organisms likely survive using mechanisms similar to the ever - increasing parade of creatures that have been discovered living in the total darkness of hydrothermal vents at the bottom of the ocean, deriving energy from minerals in seafloor rocks.

A research group comprising Project Researcher Yusuke Yamashita, Assistant Professor Tomoaki Yamada, Professor Masanao Shinohara and Professor Kazushige Obara at the University of Tokyo Earthquake Research Institute and researchers at Kyushu University, Kagoshima University, Nagasaki University, and the National Research Institute for Earth Science and Disaster Prevention, carried out ocean bottom seismological observation using 12 ocean bottom seismometers installed on the seafloor of Hyuga - nada from April to July 2013.

That might include draining away the water that lubricates the bottom of an ice sheet, speeding its progress to the sea, or installing barriers to prevent warming ocean waters from hitting the bottom of such glaciers and hastening meltdown.

Hans Røy expected few surprises from the chunk of reddish mud his team had just hauled from the bottom of the Pacific Ocean.

Lead author, Dr Huw Griffiths from BAS says: «While a few species might thrive at least during the early decades of warming, the future for a whole range of invertebrates from starfish to corals is bleak, and there's nowhere to swim to, nowhere to hide when you're sitting on the bottom of the world's coldest and most southerly ocean and it's getting warmer by the decade.»

Bierman and four colleagues — from UVM, Boston College, Lawrence Livermore Laboratory, and Imperial College London — studied deep cores of ocean - bottom mud containing bits of bedrock that eroded off of the east side of Greenland.

The team from Imperial College London, Southampton and Liverpool universities, in collaboration with The University of the West Indies Seismic Research Centre (SRC), were collecting ocean - bottom seismometers aboard the NERC research ship R.R.S. James Cook as part of a larger experiment when they were alerted to the volcano erupting.

A new survey reveals that trash from our activities on land litters the bottom of the ocean, from shallow to deep.

Without the ozone layer, ultraviolet rays from the sun would reach the surface at nearly full force, causing skin cancer and, more seriously, killing off the tiny photosynthetic plankton in the ocean that provide oxygen to the atmosphere and bolster the bottom of the food chain.

But scientists increasingly attribute much of the observed grounding line retreat — particularly in West Antarctica — to the influence of warmer ocean water seeping beneath the ice shelves and lapping against the bases of glaciers, melting the ice from the bottom up.

«We're hammering fish from the top down and now from the bottom up as more acidic oceans erode the base of the food chain,» Cowen says.

Along Axial's flanks, fields of geysers suddenly pierced the ocean bottom, shooting up superheated jets of water darkened with heavy concentrations of minerals from Earth's crust.

Seismologists at UC Berkeley discover that the hum comes from massive, storm - driven waves bumping against the ocean bottom.

«The chevrons in Madagascar associated with the crater were filled with melted microfossils from the bottom of the ocean.

Many of the bacteria with these gene families hail from far - flung locations like the bottom of the ocean.

Another boost, says Garnero, could come from ocean - bottom earthquake sensors.

Living organisms could use these oxidizing chemicals to burn fuels such as iron or methane seeping up from the rocky bottom of Europa's ocean.

In recent years, say scientists at the National Oceanic and Atmospheric Administration, these baleen whales that typically sift out little crustaceans from the bottom are now eating mysid shrimp and even krill in ocean waters.

As governments and industries expand their use of high - decibel seismic surveys to explore the ocean bottom for resources, experts from eight universities and environmental organizations are calling for new global standards and mitigation strategies.

His fears are based partly on new discoveries from places like Antarctica and the bottom of the Pacific Ocean that show small life - forms like bacteria have found ways to thrive in extreme places.

Looking through the portholes of the submersible ALVIN near the bottom of the Pacific Ocean in 1979, American scientists saw for the first time chimneys, several meters tall, from which black water at about 300 degrees and saturated with minerals shot out.

Can withstand pressures six times greater than those at the bottom of the ocean and endure temperatures ranging from more than 100 °C down to absolute zero.

He proposed that the bottom layers of Europa's ice shell would be slightly warmer than the ice on top, due to heating from both the ocean below and the crushing pressure of the miles - thick ice above.

Tides, storms and other disturbances in shallow water will stir up the bottom, while further from shore, where the water is deeper, turbulence can not reach the ocean floor, allowing sediment to settle undisturbed.

«The process basically takes some CO2 from the atmosphere and puts it in the bottom of the ocean.»

Gretchen Früh - Green, an earth scientist at the Swiss Federal Institute of Technology in Zürich, was stunned to find a network of mineral chimneys rising 200 feet from the bottom of the Atlantic Ocean.

«Ocean temperatures are not the same from the surface to the bottom.

Newly discovered archaea from the bottom of the North Atlantic Ocean suggest that eukaryotes evolved from archaea.

«This study shows for the first time that the oxidation of hydrogen sulfide and ammonia from the bottom waters could be a major contributor to lower pH in coastal oceans and may lead to more rapid acidification in coastal waters compared to the open ocean,» said Cai, the paper's lead author and an expert in marine chemistry and carbon's movement through coastal waters.

Bottom - dwelling octopus and cuttlefish who live relatively static lives are thriving, as are squid that hover over the bottom, along with those in the open ocean that may travel thousands of kilometres from spawning to feeding Bottom - dwelling octopus and cuttlefish who live relatively static lives are thriving, as are squid that hover over the bottom, along with those in the open ocean that may travel thousands of kilometres from spawning to feeding bottom, along with those in the open ocean that may travel thousands of kilometres from spawning to feeding sites.

These organisms are important because they churn up sediments from the bottom of the ocean, a process known as «bioturbation», playing a vital role in returning nutrients to surrounding water as food for other creatures.

Particles will float to shore, drift out to the ocean or absorb chemicals from the water, which weigh the particles down and cause them to sink to the bottom of the lakes.

Using data from NASA's Mars Reconnaissance Orbiter, Scanlon found pillow lava formations, similar to those that form on Earth when lava erupts at the bottom of an ocean.

It can make its skin whitish to blend in with the sandy bottom of the ocean floor and hide from predators or ambush prey.

«Most of what's known about the bottom of the ocean has come from images shot miles up in the water column, and it's a relatively coarse data set,» Cameron said recently at roundtable discussion in New York City with WHOI scientists who design, build and operate manned and robotic deep - sea exploration vehicles.