Sentences with phrase «at seafloor»

MacDonald, I.R., L.C. Bender, M. Vardaro, B. Bernard, and J.M. Brooks, Thermal and visual time - series at a seafloor gas hydrate deposit on the Gulf of Mexico slope, Earth and Planetary Science Letters, 233 (1 - 2), 45 - 59, 2005.

The Arctic Ocean is a huge reservoir of water that can readily absorb and disperse the heat and volatile gases from the volcanic eruptions at the seafloor.

Just spit balling, I believe there's an input file for geothermal flux at the seafloor (though I could be imagining this), maybe a shallow global bathymetry with an insanely high flux heating the bottom of the ocean there would do it.

«Foraminifera are single - celled animals that float in the water column and live at the seafloor.

In order to find out if these plumes are the result of that recent warming or are simply a feature of the area, a team of researchers led by Christian Berndt of Germany's GEOMAR Helmholtz Centre for Ocean Research Kiel used a submersible to get a look at the seafloor where the methane is bubbling up.

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

The new results suggest a huge source of heat must reside at the seafloor of the ocean on Enceladus.

Direct effects from depletion of O2 levels and rising water temperatures over the next century may also impact embryonic survival rates of vulnerable deep - sea oviparous (egg - laying) elasmobranchs that currently deposit their capsules at the seafloor in very narrow oceanographic niches with distinct O2, salinity and temperature conditions (Henry et al., 2016).

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.

These bottom - living deep water fishes never come to the surface and the carbon in their bodies stays at the seafloor.

Crittercam footage also showed for the first time a head - to - head orientation for two animals that were side - rolling at the seafloor.

During most years, the amount of food arriving at the seafloor reached a yearly peak in summer and fall, but remained relatively low.

«What keys the animals might use to time coordinated movement when at the seafloor, which would lack light at many depths, is... unknown.»

While a Crittercam ™ — a National Geographic Society video camera that gives a whale's - eye view — attached to a humpback provides additional insight into the whales» time at the seafloor, Ware cautions that there's plenty to learn about what the whales are doing in the deep.

A few days later, Hamburg geologist Richard Seifert got a look at the seafloor where the bacteria came from.

At that point it is about 2 degrees warmer than the water at the seafloor and three - tenths of a degree warmer than the water surrounding the plume.

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.

A study published Aug. 28, 2017, in the Proceedings of the National Academy of Sciences adds a new dimension to the controversial decision to inject large amounts of chemical dispersants immediately above the crippled oil well at the seafloor during the Deepwater Horizon disaster in 2010.

Not exact matches

But, they had never been used at the unprecedented depth of 5,000 feet beneath the surface, where an estimated 7,500 tons per day of oil and 2,400 tons per day of natural gas were jetting from the ruptured wellhead near the seafloor.

A new observatory called ABISS that can transmit video and long - term chemical measurements at broadband speeds from the seafloor using a system of flashing lights instead of a traditional tether.

We found that the particles seen in our images, which were droplets of ocean only hours earlier, bore evidence of large organic molecules and compounds that indicated hydrothermal activity similar to that observed at deep - sea vents on Earth's seafloor.

«If CO2 leaked from storage and reached the seafloor, then the environmental impact will be measurable, but very restricted in area and not catastrophic,» said Jerry Blackford, a marine system modeler at Plymouth Marine Laboratory and author of the paper, published yesterday in Nature Climate Change.

The team analysed the chemical composition of tiny shells built by organisms (foraminifera) that had lived in the water column and at the sea bottom before their shells became embedded in the seafloor sediments.

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

A Ukrainian teen watching NEPTUNE's online webcams glimpsed the snout of a mysterious creature slurping up a slimy hagfish on the seafloor, at a depth of nearly 900 meters.

Situated at 870 meters below the sea surface in Barkley Canyon, Wally uses a camera, methane detector and current flow meter to take stock of the release of methane bubbles from the seafloor.

At the time, scientists already had developed remotely operated vehicles that could roam the seafloor, and placed instruments on the ocean's bottom that could record uninterrupted measurements for years.

«Mischief and craft are plainly seen to be the characteristics of this creature,» the Roman natural historian Claudius Aelianus wrote at the turn of the third century A.D. Today's divers marvel at the elaborate trails the eight - leggers follow along the seafloor, and at their irrepressible curiosity: Instead of fleeing, some octopuses examine divers the way Steve checked me out, tugging at their masks and air regulators.

Using echosounders installed on the hull of the National Oceanic and Atmospheric Administration (NOAA) ship Nancy Foster, the science team mapped canyons and shelf regions at high resolution over more than 380 square miles (1,000 square kilometers) of seafloor from south of Cape Hatteras to Baltimore Canyon, which runs from offshore North Carolina to the eastern tip of Long Island.

Led by Ken Buesseler, a senior scientist and marine chemist at the Woods Hole Oceanographic Institution (WHOI), the team found that a small fraction of contaminated seafloor sediments off Fukushima are moved offshore by typhoons that resuspend radioactive particles in the water, which then travel laterally with southeasterly currents into the Pacific Ocean.

The researchers, centered at the University of Tsukuba, described two specimens of X. japonica dredged from the seafloor of the western Pacific: a female about 5 cm in length, and a juvenile about 1 cm in length.

The earthquakes at Axial Seamount are small and the seafloor movements gradual and thus can not cause a tsunami.

«Our data suggest that there are two other processes in the mantle that are stronger: one, the asthenosphere is clearly flowing on its own, but it's deeper and smaller scale; and, two, seafloor spreading at the ridge produces a very strong lithospheric fabric that can not be ignored.»

Grey whales feed on the seafloor at depths of up to 50 metres, and rely heavily on the shallow regions in Alaska's Bering Sea for food.

Macdonald says the process of continental plates spreading apart and filling in with magma is analogous to what happens on the deep seafloor at mid-ocean ridges, which are difficult to study because they lie a few kilometres under water.

Now the project will include time to study the biodiversity of the seafloor at Larsen C, as well as a return to Larsen B nearly 20 years after its big break, he says.

Wondering whether the climate cycles might somehow be boosting seafloor volcanism at regular intervals, the researchers created a computer model to test the idea.

In the Geophysical Research Letters paper, Maya Tolstoy, a marine geophysicist at Columbia University, reports that she found the same correlation at the East Pacific Rise, a fast seafloor spreading region off the coast of Mexico.

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.

For days or even weeks at a time, these guns send a volley of ear - shattering sound through the ocean to impact the seafloor every ten seconds or so.

But «what we found on the seafloor was almost entirely different from what we expected,» says Rebecca Carey, a volcanologist at the University of Tasmania in Australia.

Their collected data has allowed Rignot, Scheuchl and their team at UC Irvine to map the seafloor in the region.

Chave had recently worked at Bell Laboratories, coordinating a project to reuse an old AT&T seafloor telephone cable to transmit undersea earthquake data to researchers onshore in Japan.

Thousands of marks on the Antarctic seafloor, caused by icebergs which broke free from glaciers more than ten thousand years ago, show how part of the Antarctic Ice Sheet retreated rapidly at the end of the last ice age as it balanced precariously on sloping ground and became unstable.

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.

Seep mounds are carbonate deposits, often hosting unique fauna, which form at sites of methane leakage into the seafloor.

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.

It's maddening that we know so little about what the seafloor looked like at the site of the Deepwater Horizon spill before the oil began to leak.

Magma from the mantle forms oceanic crust when it rises from the mantle to the surface at spreading centers and cools into the rock that forms the very bottom of the seafloor.