Sentences with phrase «ocean bottom»
The phrase "ocean bottom" refers to the very bottom part of the ocean, which is also known as the seabed. It is the solid ground beneath the water where things like sand, rocks, and other materials are found. Full definition
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.
sciencedaily.com
Next year, Eilon will be part of an international effort to instrument large unexplored swaths of the Pacific with ocean bottom seismometers.
Peralta - Ferriz, C., J. H. Morison, J. M. Wallace and J. Zhang, (2011), A basin - coherent mode of sub-monthly variability in Arctic Ocean bottom pressure, Geophys.
Methane chimneys puffing off the Arctic ocean bottom In an earlier research expedition this summer, the Russian - Swedish International Siberian Shelf Study went around actually hunting methane emissions - and they found them.
We use realistic estimates of mass redistribution from ice mass loss and land water storage to quantify the resulting ocean bottom deformation and its effect on global and regional ocean volume change estimates.
This is the first observation - based investigation of the relationship between ocean bottom pressure and sea level over the global ocean on interannual time scales.
In the future, scientists like UW's Kelly envision using eDNA to determine marine biodiversity in difficult - to - sample habitats like rocky ocean bottoms that can not be trawled.
The oxygen isotopic composition and temperature of Southern Ocean bottom waters during the last glacial maximum.
To make sure they're not missing something, researchers have been using ships to drop off and later retrieve ocean bottom seismographs.
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.
«These new ocean bottom data, which are really coming out of technological advances in the instrumentation community, will give us new abilities to see through the ocean floor,» Eilon said.
Traditional seismometers can misclassify tilting as translational motion — a problem especially acute for ocean bottom sensors that sit on soft muds, Evans says.
Methane, the carbon - hydrogen compound that is the main component of natural gas and cow flatulence, gets trapped inside crystalline cages of frozen water in the muddy ocean bottom.
Since the Kobe Ocean Bottom Exploration Center (KOBEC) was established in 2015, the Center has carried out three survey voyages to the Kikai Caldera, south of Japan's main islands.
These observations of spatial variation in relation to the terrain features are likely driven in part by changes in ocean bottom current speeds produced by the hilly terrain; this causes changes in the settling and drifting of marine snow.
Species: Ranina ranina Habitat: Tropical and subtropical ocean bottoms to 100 metres, Australia and western Pacific
Immediately after the earthquake, the agency sent another vessel, Kairei, to deploy ocean bottom seismometers in the area of the earthquake to monitor aftershocks and get a better understanding of the fault zone.
Though states may be eager to get on with exploiting fresh ocean bottom, the recent flood of applications means those late in the game can expect to wait decades for final recommendations unless the commission itself is radically reformed.
Taking turns with his shipmates, Wiens swung bright - yellow ocean bottom seismometers and hydrophones off the fantail, and lowered them gently to the water's surface, as the ship laid out a matrix of instruments for a seismic survey on the trench.
For example, it affects ocean bottom - dwelling species that depend on plankton blooms near the ice edge, on up the marine food chain to the commercially valuable fish species that lived where the ice edge used to be.
Ikaite crystals incorporate ocean bottom water into their structure as they form.
Satellite - derived interannual ocean bottom pressure variability and its relation to sea level
The Ocean Basin Model encourages experiments with ocean surface circulation in a homogeneous, rectangular ocean basin, driven by surface winds, ocean bottom friction, horizontal pressure gradients and the Coriolis force.
Researchers sifted through 30,000 years of dust and ocean bottom muck retrieved with ocean drilling ships.
The seismological studies extend offshore with ocean bottom seismic experiments, and seafloor pressure measurements are used to study tsunamis and oceanographic processes.
Not mobile but certainly tech related - Poseidon Resorts plans to build the first ocean bottom resort in the Bahamas.
Ocean parameters: horizontal and vertical ocean diffusivity k H = 200 — 5,000 -LCB- 2000 -RCB- m2 / s, k V = 0.1 — 1.0 × 10 − 4 -LCB- 0.3 × 10 − 4 -RCB- m2 / s at top, 1.1 — 2.0 × 10 − 4 -LCB- 1.3 × 10 − 4 -RCB- m2 / s at ocean bottom (vertical profile after Bryan Lewis).
The race is on to tap the world's biggest and most unusual fossil fuel supply — methane trapped in frozen hydrates in permafrost and at the bottom of the ocean
Their paper — titled «Ocean Bottom Deformation Due To Present - Day Mass Redistribution and Its Impact on Sea Level Observations» — is published in Geophysical Research Letters.Here is the abstract:
Previous theoretical and model - based studies of the relationship between ocean bottom pressure (pb) and sea level (ζ) suggest primarily barotropic variability at mid to high latitudes for scales greater than a few hundred kilometers and periods less than a few months.
That has some scientists worried that powerful emissions of methane from permafrost peatlands as well as from the warming Arctic ocean bottom are already upon us.
Heuzé, C., Heywood, K. J., Stevens, D. P. & Ridley, J. K. Southern Ocean bottom water characteristics in CMIP5 models.
The Gravity Recovery And Climate Experiment (GRACE) is unique in its ability to measure changes in ocean bottom pressure (OBP) over the entire globe at large scales.
«But if you think about deep sea sediments, the water column over them is on the order of one, two, even five kilometers, and a lot of ocean bottom water is 2 °C, not much different from the 0 °C under the West Antarctic ice sheet.
The underwater world is full of different natural sounds that can be recorded by cutting - edge underwater technology such as ocean bottom seismometers (OBS), that include hydro - and geophones.
How these reservoirs respond to any future changes in ocean bottom - water temperatures, natural or anthropogenic, is still a topic very much open for discussion.»
Carried within the water column, accumulating on the ocean bottom or becoming entrained in marine sediments — a spill of Alberta bitumen might prove impossible to contain.
Tankers docking at the station would have regasified the fuel and pumped it through pipes buried at least 15 feet under the ocean bottom, including a 22 - mile - long main that would hook up to an existing delivery system.