Sentences with phrase «ocean gyre»

Extratropical ocean influences are also likely to play a role as changes in the ocean gyre evolve and heat anomalies are subducted and re-emerge (Deser et al., 1996, 1999, 2003; Gu and Philander, 1997).

The research team, including the authors of the study, Peter Davison and Rebecca Asch, traveled across hundreds of miles of the North Pacific ocean gyre, collecting fish specimens, water samples and marine debris at depths ranging from the surface to thousands of feet under.

The High over the Arctic Ocean gyre is still more or less about its business, despite GFS predicting there should have been a big Low there by now:

These range from few years (Beaufort gyre 4 years, Circumpolar current 8 years, Indian ocean gyre 10 years, N. Atlantic subpolar gyre 20 years etc.) up to above 100 years for some of the Pacific gyres, and finally the great ocean conveyor belt estimated at ~ 1600 years.

Note that there is also poleward transport in the shallow currents at the western edge of each subtropical ocean gyre - known as western boundary currents.

and how about nasa's recent report of the apparent arctic ocean gyre reversal to clockwise that is underway — that the counterclockwise gyre of the arctic ocean rotation (since 1989) which apparently also been largely responsible for centrifigally pushing arctic ice into warmer waters, speeding melting — should now predictably result in increasing amounts of ice due to the centripetal pull of the ice toward the north pole?

There was a long standing Anticyclone SW of North American side of pole exacerbating arctic ocean gyre movement, causing more open water there, as it is big open area right now.

The Indian Ocean Garbage Patch on a continuous ocean map centered near the south pole The Indian Ocean garbage patch, discovered in 2010, is a gyre of marine litter suspended in the upper water column of the central Indian Ocean, specifically the Indian Ocean Gyre, one of the five major oceanic gyres.

The pattern the water circulation forms in that region is called the Indian Ocean Gyre, one of five of the major ocean gyres of the world that scientists have identified so far.

SeaWiFS data show that photosynthesizing organisms have declined in certain ocean gyres (large - scale surface current patterns), said Jim Yoder, a scientist at the Woods Hole Oceanographic Institution, in a NASA article commemorating the end of SeaWiFS's mission.

To figure out how much refuse is floating in those garbage patches, four ships of the Malaspina expedition, a global research project studying the oceans, fished for plastic across all five major ocean gyres in 2010 and 2011.

In the northern Mozambique channel and the Raja Ampat archipelago in Indonesia, for instance, upwelling and ocean gyres bring cool water that has allowed fragile corals to escape bleaching.

As may be expected from the positions of ocean currents, most mixing in the upper layers of the ocean takes place on the western boundaries of ocean gyres where the current speeds are greatest.

Reductions in seafloor POC flux will be most drastic, on a percentage basis, in the oceanic gyres and equatorial upwelling zones, with the northern and southern Pacific Ocean and southern Indian Ocean gyres experiencing as much as a 32 — 40 % decline in POC flux (Tables 2, 3; Figures 2, 3).

Moreover, the few existing community - level studies were mostly conducted in rather eutrophic environments, while less attention has been paid to oligotrophic systems such as the subtropical ocean gyres.

Imagining artistic practice as a sedimentary process of material and social transformation (akin to a trash heap or scrap yard), Alli works in installation, performance, image - making and visual research to rummage in the aesthetics of precarity, collapse, and by extension, the vast formlessness of the Earth's ocean gyres.

This is to be expected because the spin - up of the wind - driven ocean circulation speeds up the currents (Ekman transport) which carry heat out of the tropics in the near - surface layers toward the subtropical ocean gyres.

And I do think there are a number of questions about interpretation of observations, and the details of the climate model experiment (the very large exponentially increasing freshwater fluxes, the low - resolution of the ocean which obscures the potentially important role of wind - driven ocean gyres, etc.).

Hatun et al. also used altimeter data (local sea level height measurements from satellite observations) to diagnose the norther oceans gyre circulation.

Thanks Rob for mentioning the ocean gyres.

Rob Painting: The transport of heat down into the surface to deep ocean occurs via the subtropical ocean gyres.

pressure, wind, waves, & gyres visualizing & understanding coherence of terrestrial surface pressure, wind, waves, & currents (ocean gyres)

What follows next depends on the winds — and factoring in Ekman transport — driving the north and south Pacific Ocean gyres.

The main mechanism for wind - driven mixing into the deep ocean (down to around 2000 metres) is via convergence of warm tropical surface water in the subtropical ocean gyres.

Most of the deep ocean warming is occurring in the subtropical ocean gyres - vast rotating masses of water in each ocean basin where near - surface currents converge and are forced downward into the ocean interior.

These subtropical ocean gyres are large rotating masses of surface water which occupy the mid-latitudes of each ocean basin.

A near - coherent spin - up of all five subtropical ocean gyres was observed from the early / mid 1990's through to about 2004, when a peak was reached.

The sampling uncertainties are generally smaller in the tropics and in the ocean gyres.

Stronger easterly trade and midlatitude westerly winds spin up the subtropical ocean gyres.

These two near - surface currents converge in the centre of the subtropical ocean gyres and, with nowhere else to go, the water is directed downward into the ocean interior (known as Ekman pumping).

These changes in low solar activity push polar storms into lower latitudes and spin up ocean gyres.

The trigger for more Pacific upwelling is the great ocean gyres.

Ocean gyres spin up on the surface through winds and planetary rotation.

Winds and great ocean gyres spin up in negative phases of the polar annual modes.

Low solar activity spins up the great ocean gyres producing more frequent La Niña and a cooler northeastern Pacific (more upwelling)-- and vice versa.

There's a link to an observational study and to the 2 part SkS series by Rob Painting highlighting the Meehl et al model - based study that suggests this is a HUGE phenomenon occurring in the ocean gyres explaining 700 - 2000m warming.

All five of the Earth's major ocean gyres are inundated with plastic pollution.

For years, scientists have warned that the world's oceans are becoming a plastic soup, with ocean gyres where plastic and other debris build up (also known as «garbage patches») covering a quarter of the earth's surface.

The Sun is involved, other CO2E gases, particulates, weather phenomena, ocean gyres, plants, plankton, albedo, sea ice extent, salt concentration of sea water..

Stronger tropical easterly trade winds during La Nina - dominant periods (negative Pacific Decadal Oscillation [PDO]-RRB- will lead to stronger Ekman pumping in the ocean gyres.

I believe a lot of the confusion stems from readers not understanding how the oceans really operate - Coriolis Effect, ocean gyres, Ekman transport, and so on.

We find that the energy transport associated with wind - driven ocean gyres is closely coupled to the energy transport of the midlatitude atmosphere so that, for example, the heat transport of both systems scales in approximately the same way with the meridional temperature gradient in midlatitudes.

Not exact matches

In 2010 she hitchhiked across the Pacific Ocean on freighter ships to the United States, where she worked with the 5 Gyres Institute in California on the first ever comprehensive study of plastic in the world's oceans.

Rainbow Light is partnering with NGO 5 Gyres to combat plastics pollution in the ocean.

«We realised that our buoys are in fact a kind of marine debris,» says Nikolai Maximenko of the University of Hawaii in Honolulu, who collaborated with 5 Gyres researchers to identify which areas of the ocean should have especially high levels of plastic pollution.

If you trawl a fine mesh net through any of the globe's five subtropical gyres — giant ocean vortexes where currents converge and swirl unhurriedly — you will haul on deck a muddle of brown planktonic goop, the occasional fish, squid or Portuguese man - of - war — and, almost certainly, a generous sprinkling of colourful plastic particles, each no larger than your fingernail.

Seattle - based oceanographer Curtis Ebbesmeyer, who has been tracking huge gyres of trash in the ocean for two decades and runs the Beachcombers» Alert website, thinks the majority of tsunami debris will reach U.S. shores as early as October 2012.

Ocean currents have been carrying floating debris into all five of the world's major oceanic gyres for decades.

The report adds that every square mile of ocean is home to nearly 50,000 pieces of litter, much of which tends to harm or kill wildlife that either ingests the plastic or gets trapped in discarded netting, which is just as common in the Northern Gyre as discarded soda bottles.

Such accumulation zones are created when large amounts of floating plastic debris are caught by ocean currents and concentrate in the centre of gyre systems.