Sentences with phrase «study seafloor»

The opaqueness of seawater to the passage of light or radio waves makes it difficult to efficiently study the seafloor or the deep interior of the oceans with either optical methods (cameras, etc), or with radar or microwave radiation (such as used in satellites).

Linse and her colleagues» urgent mission is to study seafloor that was in the shadow of the ice before the ecosystem changes.

A mission to study seafloor life suddenly exposed by the breaking away of the Larsen C iceberg last July was delayed as it tried to navigate through floating ice, some chunks as thick as 5 meters.

This Website offers information and resources for studying seafloor animals, hydrothermal vents, mid-ocean ridges, axial volcano, lava flow, and tools and technology.

Woodside studied the seafloor environment of the Timor Sea as part of earlier plans to pump Sunrise's gas to an LNG plant in Darwin.

Not exact matches

The foundation of the research involved tracking the changes in ocean circulation in new detail by studying three sediment cores extracted from the seafloor of the Gulf of Mexico in 2010 during a scientific cruise.

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.

The study uses data from two NASA missions — Operation IceBridge, which measures ice thickness and gravity from aircraft, and Oceans Melting Greenland, or OMG, which uses sonar and gravity instruments to map the shape and depth of the seafloor close to the ice front.

For this study, video technicians searched the VARS database to find every video clip that showed debris on the seafloor.

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.

Some scientists plan to assess the stability of the remaining ice shelf, others will map the region's seafloor topography and still others want to study the newly exposed ecosystem that's been hidden from the sun for up to 120,000 years (SN Online: 10/13/17).

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.

Ocean - based wind turbines don't need to be firmly anchored to the seafloor, according to a new study.

The second spot was Axial Seamount, an active underwater volcano, along with its associated hydrothermal vents, where the team could study the transfer of minerals from beneath the seafloor into the water and access hardy microbes that thrive in the vent fluids, which can reach 250 degrees Fahrenheit.

Studies have shown that Earth's mantle holds several oceans» worth of water that was dragged underground by plate tectonics and subduction of the ocean seafloor.

Now, several research groups aim to assess the stability of the remaining ice shelf, map the region's seafloor and study a newly exposed ecosystem that's been hidden from the sun for up to 120,000 years.

The new study supports the likelihood that these vertical fault zones have displaced the seafloor in the past, which means they could send out tsunami - generating pulses towards the nearby coastal mega-city of Los Angeles and neighboring San Diego.

For more than two decades, scientists studying hydrothermal circulation in the water under the seafloor have assumed that the flow is relatively stable.

In a previous study, Melanie Bergmann analysed photographs from the deep Arctic seafloor for signs of plastic, glass and other types of litter.

IODP is a collaboration of scientists from 23 countries; the organization coordinates voyages to study the history of the Earth recorded in sediments and rocks beneath the seafloor.

Researchers have been studying this process in a concentrated effort 100 kilometers off the coast of Oregon, along a dumbbell - shaped promontory called Hydrate Ridge for the icy deposits that virtually pave the seafloor there.

Lead author of the study, Dr Leigh Howarth, who conducted the research as part of his PhD in the Environment Department at York, said: «We found strong evidence that protecting Lamlash Bay from fishing has allowed seaweeds, hydroids and other organisms on the seafloor to recover.

For the first time, this current study delivers a «holistic» view of the effects of increasing CO2 concentrations on the seafloor.

Jun - Yuan Chen of the Nanjing Institute of Geology and Paleontology and his colleagues collected and studied samples of Vernanimalcula guizhouena, a microscopic animal that probably moved along the seafloor sucking in bacteria for food.

He also examined studies of ancient sea levels and a detailed bathymetric map showing the depth of the seafloor between the islands of Okinawa and Japan.

Satellite remote sensing can't see below the surface to discern the depth of the seafloor or study the layers of water.

The current study is based on fundamental work on the modeling of the seafloor, which was conducted in the group of Professor Lars Rüpke within the framework of the Kiel Cluster of Excellence «The Future Ocean.»

«Hydrothermal siphon» drives water circulation through seafloor: New study explains previous observations of ocean water flowing through the seafloor from one seamount to another.»

In a study published in Science in June, paleoceanographer Bärbel Hönisch and colleagues at Columbia University examined the remnants of planktonic foraminifera — single - celled creatures with elaborate shells — buried beneath the seafloor off the coast of Africa.

The finding from this study — that the increased availability of food on deep - sea hills is fuelling increased seafloor biomass — is important because there are approximately 25 million abyssal hills and seamounts — they are thought to be the most common landform on the planet.»

Our goal was to fingerprint the source of methane in the Arctic Ocean to determine if ancient methane was being liberated from the seafloor and if it survives to be emitted to the atmosphere,» says Sparrow, who conducted the study, published in Science Advances, as part of her doctoral research at the University of Rochester.

In the recent studies, researchers showed that this behavior happens for extensive periods of time at or near the seafloor, that it occurs in the presence of concentrations of sand lance (a preferred prey fish), and that the behavior is accompanied by the expansion of the animal's ventral (throat) pleats.

His study concluded that a thin sheet rapidly vibrating in a wavelike motion, much like a ray swimming near the seafloor, would stay aloft.

On the last day of a research cruise off the coast of Antarctica this spring, Hamilton College marine geologist Eugene Domack and his team lowered a video camera overboard to capture images of the seafloor sediments they had been studying.

Although the researchers did not examine in this study what prevents methane released from the seafloor from reaching the atmosphere, they suspect it is biodegraded by microorganisms in the ocean before it hits the surface waters.

Lead author of the study, Dr Caroline Eakin, Research Fellow in Ocean and Earth Science at the University of Southampton, said: «The process of consuming old seafloor at subduction zones, where great slabs of oceanic material are swallowed up, drives circulation in the Earth's interior and keeps the planet going strong.

Van Dover is a specialist in the ecology of deep - sea ecosystems that are powered by chemistry rather than sunlight, and Eggleston studies the ecology of organisms that live on the seafloor.

In an earlier study, the team found that the neighboring Filchner - Ronne and Ross ice shelves would not collapse on their own; the seafloor topography would keep them anchored in place and prevent the destabilizing inward rush of seawater.

Recent studies have proposed that the bathymetric fabric of the seafloor formed at mid-ocean ridges records rapid (23,000 to 100,000 years) fluctuations in ridge magma supply caused by sealevel changes that modulate melt production in the underlying mantle.

A boat can «mow the lawn» over a large area in a relatively short period of time, while stationary recorders on the seafloor have great temporal coverage, but they record only within a certain range of the hydrophone,» said Selene Fregosi, a researcher at the Cooperative Institute for Marine Resources Studies, Oregon State University and National Oceanic and Atmospheric Administration in Newport, Oregon.

For example, data from this study has been used to examine the evolution of gas hydrate stability within the Eurasian Arctic over glacial timescales, exploring the development of massive mounds and methane blow - out craters that have been recently discovered on the Arctic seafloor.

From this, they calculated that sinkers contribute 7.6 grams of carbon per square meter of seafloor each year, an uncanny match to a food deficit found in a study using sediment traps.

«What we found is a fish with an amazing tolerance to anoxia and hydrogen sulfide that literally holds its breath on the seafloor by day — where it eats lots of carbon - rich mud,» says biologist Mark Gibbons of the University of the Western Cape in Bellville, South Africa, another participant in the study.

While the methane in the Von Damm vent system they studied was produced through chemical reactions (abiotically), it was produced on geologic time scales deep beneath the seafloor and independent of the venting process.

The studies are based on data collected by the Cabled Array, a National Science Foundation - funded project that brings electrical power and internet to the seafloor.

For 14 years, scientists from the Scripps Institution of Oceanography in La Jolla, California, used a camera on a sled to study a stretch of seafloor 2 1/2 miles down.

«A lot of research has shown that intrusions of warm water are responsible for melting ice along the polar coastlines and that these intrusions are steered by the shape of the seafloor,» said Jamin Greenbaum, an oceanography and geology expert at the University of Texas, Austin, who was not involved with the new study, in an email.

As head of a new Emmy Noether junior research group funded by the German Science Foundation, Dr. Florian Scholz will continue to study the fluxes of iron and other micronutrients across the seafloor in the coming years.

In a field study, Diane Adams, a marine biologist at Woods Hole Oceanographic Institution in Massachusetts, and her colleagues measured the currents near the seafloor along the East Pacific Rise, a submarine ridge south - southwest of Acapulco, Mexico, that sports many hydrothermal vent systems.

This picture may be about to change in light of a study of deep - sea rocks and sediments led by John Parkes, a microbiologist at Cardiff University in the U.K.. By visiting oil - drilling projects at two sites in the Pacific in 2002, Parkes and colleagues obtained samples as deep as 400 meters beneath the seafloor.