Sentences with phrase «seafloor pressure»

The seismological studies extend offshore with ocean bottom seismic experiments, and seafloor pressure measurements are used to study tsunamis and oceanographic processes.

However, if degassing is more dependent on seafloor pressure and regassing mainly dependent on mantle temperature, the degassing rate is relatively large at late times and a steady - state between degassing and regassing is reached with a substantial surface water fraction.

Using these steady - states, we find that if volatile cycling is either solely dependent on temperature or seafloor pressure, exoplanets require a high abundance (more than 0.3 % of the total mass) of water to have fully inundated surfaces.

The reports, published as a focus section in the September - October 2015 issue of Seismological Research Letters (SRL), also provide an update on how well the Initiative's instruments are operating, including a look at how seafloor pressure monitors can detect tsunamis in the region.

The National Oceanic and Atmospheric Administration maintains a network of 39 DART buoys, 32 of them in the Pacific, each of which comprises a seafloor pressure sensor and a floating buoy that beams wave measurements to satellites.

Not exact matches

To see his subjects up close, McClain hops a ride in a submersible, a 23 - by -8-foot research vessel designed to withstand the enormous pressure at seafloor levels.

Alvin can not withstand pressure at depths greater than 2.8 miles, leaving nearly 40 percent of the seafloor off - limits.

At high velocities deep in the ocean, that dual pressure heaves water with forces powerful enough to generate a tsunami, as a similarly massive chunk of seafloor did in the 2011 event in Japan.

A cable links 20 sites, each of which hosts seismometers along with pressure sensors that can pick up changes in the shape of the seafloor.

Initially, scientists thought that no species, let alone a bustling community, could survive the scorching temperatures and crushing pressures of these sites, most of which are located about 7,000 feet below the ocean surface in areas of seafloor spreading.

UCSC research scientist Patrick Fulton was on board the research vessel Kairei, operated by the Japan Agency for Marine - Earth Science and Technology (JAMSTEC), for the retrieval of the string of pressure and temperature sensors that was installed across the fault zone at about 800 meters beneath the seafloor.

Clams have turned up in the sunless, high - pressure depths surrounding seafloor vents.

The bottom of that zone, deep in the seafloor mud, is where the temperature gets too high, toward Earth's hot interior; the top of the zone is where the pressure gets too low, moving toward the surface.

After a series of earthquakes along the Juan de Fuca Ridge in the Pacific Northwest grabbed their attention, researchers detected a 30 - day drop in water pressure on the seafloor.

In those seafloor samples, Becker's team reports finding shocked and melted minerals and glass that could be produced only by the intense heat and pressure of a bolide, or meteoric, crash.

Water pressure at those depths is more than 200 times that of the atmosphere at the surface, and no one knew what all the heat, gas, and salt below the seafloor might do to the drilling equipment.

If the pressure is too low or the temperature too high, the hydrates dissociate (break down), the methane is released and the gas can seep from the seafloor into the ocean.

Based on pressure and temperature modelling, we show that the last deglaciation could have triggered dissociation of gas hydrates present in the region of the northern part of the Norwegian Channel, causing degassing of 0.26 MtCH4 / km2 at the seafloor.

For instance, they broadcast acoustic signals, creating pressure waves at the seafloor.

He said he first learned to operate a remotely piloted submersible in 1988 while making «The Abyss» and, through and after making «Titanic,» worked extensively in waters far deeper than the location of the destroyed gulf well, designing pressure - resistant camera housings, lighting towers that could be dropped to the seafloor two miles down and other gear requiring pushing the edges of deep - sea engineering.

Scientists have observed that pressure from current - seafloor encounters drives the direction of the massive Antarctic Circumpolar Current in the Southern Ocean.

Methane hydrates that are on the edge of stabilization can be disturbed by global warming in two additional ways, temperature and pressure: Warming of the Earth's crust as heat penetrates sediments on the seafloor.