Whales fertilize
ocean surface waters with key nutrients like phosphorus, which move through the food chain, and eventually, onto land.
Not exact matches
Evaporation from the
ocean waters can also lower the density of the air close to the
surface to the point that it can not mix
with the air layer above it.
«The pore spaces, or tiny holes, in the rock remain filled
with these ancient
oceans, so when we drill wells today that
water is produced to the
surface,» Tinker says.
Kadri says the results may help scientists connect interactions between not only
surface and deep
ocean waters, but also
with the atmospheric forces that affect
surface waves.
The rising temperatures cause layers of
ocean water to stratify so the more oxygen - rich
surface waters are less able to mix
with oxygen - poor
waters from the deeper
ocean.
At the top of the eyewall,
water condenses; as the resulting drops fall back down to the
ocean surface they lose power through friction
with the surrounding air.
Real - world data back the claim: Accumulations of calcium carbonate in deep - sea Pacific sediments show that the Pliocene
ocean experienced huge shifts at the time,
with waters churning all the way from the
surface down to about three kilometers deep, as would be expected from a conveyor belt — type circulation.
They compared isotope measurements on the silica skeletons of diatoms, which store environmental signals from the
ocean's
surface,
with isotope signals from radiolarians, which live in deeper
water layers.
In these areas, deep
ocean waters that are naturally rich in carbon dioxide are upwelling and mixing
with surface waters that are absorbing carbon dioxide from the atmosphere.
The Malaspina Expedition, led by the Spanish National Research Council, has demonstrated that there are five large accumulations of plastic debris in the open
ocean that match
with the five major twists of oceanic
surface water circulation.
In his letter on
ocean thermal energy conversion (OTEC), Graham Cox suggests it could be used to fertilise
surface waters with nutrient - rich deep
water to promote plankton growth for carbon capture (1 December, p 31).
A new study has found that turbulent mixing in the deep
waters of the Southern
Ocean, which has a profound effect on global ocean circulation and climate, varies with the strength of surface eddies — the ocean equivalent of storms in the atmosphere — and possibly also wind sp
Ocean, which has a profound effect on global
ocean circulation and climate, varies with the strength of surface eddies — the ocean equivalent of storms in the atmosphere — and possibly also wind sp
ocean circulation and climate, varies
with the strength of
surface eddies — the
ocean equivalent of storms in the atmosphere — and possibly also wind sp
ocean equivalent of storms in the atmosphere — and possibly also wind speeds.
Her real breakthrough is finding the mechanism by which molecules on Europa's
surface could unite
with water and energy in the lakes, and maybe even in the vast, deeper
ocean.
The
surface waters of the world's
oceans are supersaturated
with the greenhouse gas methane, yet most species of microbes that can generate the gas can't survive in oxygen - rich
surface waters.
Invasive species are entering the region
with or without shipping, says Ted Scambos of the National Snow and Ice Data Center in Colorado; warming of the Arctic
Ocean's
surface temperatures has already increased mixing
with foreign
waters and all the microbes they contain.
For example, scientists have found that El Niño and La Niña, the periodic warming and cooling of
surface waters in the central and eastern tropical Pacific
Ocean, are correlated
with a higher probability of wet or dry conditions in different regions around the globe.
This is an important finding because current estimates of biological activity in
surface waters of the
ocean rely on instruments aboard satellites that measure the color of the sea
surface, which changes along
with levels of chlorophyll - a, an assessment that will miss blooms of other organisms, such as bacteria.
Prevailing scientific wisdom asserts that the deceleration of circulation diminishes the
ocean's ability to absorb anthropogenic CO2 from the atmosphere as
surface waters warm and become saturated
with CO2.
An international team of researchers analyzed the available data taken from all previous studies of the Southern
Ocean, together
with satellite images taken of the area, to quantify the amount of iron supplied to the
surface waters of the Southern
Ocean.
Wendy Panero, associate professor of earth sciences at Ohio State, and doctoral student Jeff Pigott are pursuing a different hypothesis: that Earth was formed
with entire
oceans of
water in its interior, and has been continuously supplying
water to the
surface via plate tectonics ever since.
In their new study, the ETH researchers in the group headed by Sonia Seneviratne's, professor for land - climate dynamics, take into account the specific climatic properties of land
surfaces, where the amount of available
water is limited when compared
with the
ocean.
The study bolsters the idea that Mars once had a warmer climate and active hydrologic cycle,
with water evaporating from an ancient
ocean, returning to the
surface as rainfall and eroding the planet's extensive network of valleys.
But in many instances, the simulations show, even planets starting
with rocky cores as little as 1.5 Earth's mass may trap and hold atmospheres containing between 100 and 1000 times the amount of hydrogen found in the
water in Earth's
oceans — thick, dense envelopes exerting pressures so hellish that life on the planets»
surfaces might be almost impossible.
Expanding sea ice would have melted into the North Atlantic
Ocean, interfering
with the normal mixing between
surface and deeper
waters.
Earth and Venus are of comparable size and mass, yet the
surface of Venus bakes at 460 degrees Celsius under an
ocean of carbon dioxide that bears down
with the weight of a kilometer of
water.
With higher levels of carbon dioxide and higher average temperatures, the
oceans»
surface waters warm and sea ice disappears, and the marine world will see increased stratification, intense nutrient trapping in the deep Southern
Ocean (also known as the Antarctic
Ocean) and nutrition starvation in the other
oceans.
It was Olav Hollingsæter, founder of the company OceanTherm AS, who came up
with the idea of cooling
ocean surface waters as a means of preventing hurricanes.
Venus is the planet most like Earth in terms of its size and gravity, and evidence suggests it once had
oceans worth of
water which boiled away to steam long ago
with surfaces temperatures of around 860 degrees Fahrenheit (460 Centigrade).
The most important bias globally was the modification in measured sea
surface temperatures associated
with the change from ships throwing a bucket over the side, bringing some
ocean water on deck, and putting a thermometer in it, to reading the thermometer in the engine coolant
water intake.
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.
With the removal of the warm
surface waters, an upwelling current is created in the east Pacific
Ocean, bringing cold
water up from deeper levels.
To go to Enceladus, she added, any lander would need to be very clean as liquid
water is in contact
with the moon's icy
surface, so contamination of the subsurface
ocean would be a very real possibility.
The research published in Nature Communications found that in the past, when
ocean temperatures around Antarctica became more layered -
with a warm layer of
water below a cold
surface layer - ice sheets and glaciers melted much faster than when the cool and warm layers mixed more easily.
In developing countries
with no on - site or centralized sanitation facilities, no opportunity exists for any type of treatment, and human wastes go directly into
surface waters, including the coastal
ocean.
And then, if the
ocean surface water was «diluted»
with isotopic light melt
water, would this not be reflected
with a similar drop in the Greenland ice cores, just by a changing isotope signature of the source, instead of a temperature drop?
KAMUELA, Hawaii —
With data collected from the mighty W. M. Keck Observatory, California Institute of Technology (Caltech) astronomer Mike Brown — known as the Pluto killer for discovering a Kuiper - belt object that led to the demotion of Pluto from planetary status — and Kevin Hand from the Jet Propulsion Laboratory (JPL) have found the strongest evidence yet that salty
water from the vast liquid
ocean beneath Europa's frozen exterior actually makes its way to the
surface.
A world
with an iron core, rocky mantle and enough
water on the
surface to create liquid
water oceans that could support life.
These lakes, that would be located deep in Europa's icy crust, could be communicating
with the liquid
water ocean below, while providing it
with chemical elements from the
surface that would be a valuable energy source to any potential life forms.
Distinguishing habitable worlds like Earth (i.e., those
with surface water oceans) from greenhouse planets like Venus, or barren worlds like Mars, requires understanding a planet's atmosphere.
The CDR potential and possible environmental side effects are estimated for various COA deployment scenarios, assuming olivine as the alkalinity source in ice ‐ free coastal
waters (about 8.6 % of the global
ocean's
surface area),
with dissolution rates being a function of grain size, ambient seawater temperature, and pH. Our results indicate that for a large ‐ enough olivine deployment of small ‐ enough grain sizes (10 µm), atmospheric CO2 could be reduced by more than 800 GtC by the year 2100.
Writing in Earth's Future, an American Geophysical Union journal, the researchers concluded that both hurricane peaks coincided
with periods when
surface waters of the Atlantic
Ocean were hotter than normal.
Even more crustal minerals were formed by plate tectonics
with the help of lubricating
ocean water, atmospheric oxygen from the successful development of photosynthetic microbes, and land - based lichens (of algae and fungi) and mosses which were followed by deep - rooted plants that hastened the erosion and weathering of
surface rocks
with the help of biochemical action and the creation of soils as well as new clay minerals.
Watch for them soaring gracefully just above the
surface of the
ocean and sometimes diving into the
waters with a splash.
Pelicans can often be seen in large numbers, soaring gracefully just above the
surface of the
ocean and sometimes diving into the
waters with a splash.
An exhibition of fifty paintings that trace the country's maritime and seaside history, Reflections on
Water in American Painting, pays homage to America's oceans, rivers, lakes, and harbors along with the ships that navigated them, the cities that depended on their steady flow, and the artists who found inspiration in the water's dynamic colors and surf
Water in American Painting, pays homage to America's
oceans, rivers, lakes, and harbors along
with the ships that navigated them, the cities that depended on their steady flow, and the artists who found inspiration in the
water's dynamic colors and surf
water's dynamic colors and
surfaces.
The standard assumption has been that, while heat is transferred rapidly into a relatively thin, well - mixed
surface layer of the
ocean (averaging about 70 m in depth), the transfer into the deeper
waters is so slow that the atmospheric temperature reaches effective equilibrium
with the mixed layer in a decade or so.
The
ocean removes excess atmos CO2, by dissolving in and reacting
with surface waters, acidifying them.
The CO2 concentration of the atmosphere is going up continuously, and so it invades the
ocean as it equilibrates
with warm
surface waters.
And if the
surface concentration of carbonate increased by exchange
with the atmosphere there's lots of room in the
ocean depths to store it before it would cause much difference in the concentration of carbonate in upward moving
water.
Now since relative humidity remains roughly constant at the
ocean surface and the air's capacity to hold
water increases
with temperature, relative humidity will actually decrease over land, particularly as one enters the continental interiors.