Sentences with phrase «scale ocean currents»

Further, account must be made of non-eustatic dynamic changes in sea level due to tides, storm surges, tsunamis and large - scale ocean currents.

Large scale ocean currents do not work that way.

March 14, 2018 New studies detail the design and deployment of biodegradable ocean drifter for large - scale sampling experiments MIAMI — Studying small - scale ocean currents is important to understand how pollutants like oil and micro-plastics, or tiny sea creatures like plankton, travel in the world's oceans.

Nearly two years to the day after the Deepwater Horizon incident, scientists from the Consortium for Advanced Research on Transport of Hydrocarbon in the Environment (CARTHE), based at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science, conducted a drifter experiment in the northern Gulf of Mexico spill site to study small - scale ocean currents ranging from 100 meters to 100 kilometers.

Not exact matches

A study led by scientists at the GEOMAR Helmholtz Centre for Ocean Research Kiel shows that the ocean currents influence the heat exchange between ocean and atmosphere and thus can explain climate variability on decadal time scOcean Research Kiel shows that the ocean currents influence the heat exchange between ocean and atmosphere and thus can explain climate variability on decadal time scocean currents influence the heat exchange between ocean and atmosphere and thus can explain climate variability on decadal time scocean and atmosphere and thus can explain climate variability on decadal time scales.

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.

The researchers took measurements of small - scale temperature and velocity fluctuations, to measure the diapycnal movements in the Antarctic Circumpolar Current (ACC) across the Drake Passage region of the Southern Ocean.

«NASA has access to large - scale oceanographic data sets ranging from primary productivity to ocean temperature, currents and wind,» Moore said.

With current technology, it requires great amounts of energy to desalinate ocean water on a scale large enough to meet the needs of a whole city.

January 2004: «Directions for Climate Research» Here, ExxonMobil outlines areas where it deemed more research was necessary, such as «natural climate variability, ocean currents and heat transfer, the hydrological cycle, and the ability of climate models to predict changes on a regional and local scale.»

The massive scale of the iceberg gives scientists a wide latitude to monitor how species and ocean currents respond to a strong shock to a system after eons of stability.

Coastal and boundary current systems with a focus on processes that link the nearshore and continental shelf to the open ocean, such as along - and across - shore transport processes, stirring and mixing of water masses, and the coastal response to larger - scale forcing events; long - duration, high - resolution observations using autonomous underwater gliders.

Seems this might hold for larger scale events, such as the arctic ice melting (i.e., there would be more warming in the arctic ocean in our current times, except some of the «warming» energy is going into the melting process rather than warming).

By analogy, a warmer world wouldn't be rainier (or cloudier); it's an imperfect analogy, because rain isn't absolutely correlated with cloudiness, and lateral transport of energy by ocean, air, and latent heat currents in and out of the E & W Pacific Ocean areas won't scale to global waocean, air, and latent heat currents in and out of the E & W Pacific Ocean areas won't scale to global waOcean areas won't scale to global warming

[Response: Here's a simple back - of - envelope consideration for the future: if the Greenland ice sheet melts completely over the next ~ 1,000 years (Jim Hansen argues in the current Climatic Change that the time scale could be centuries), this would contribute an average flux of ~ 0.1 Sv of freshwater to the surrounding ocean.

The oceans are a difficult part of the system for a number of reasons (mainly that the scale at which important things happen (bottom currents, eddies, western boundary currents) is quite small relative to similar processes in the atmosphere.

The much slower thermohaline circulation mixes cold abyssal water on a time scale of centuries — the global ocean turnover time estimated from bottom current velocities is estimated to be on the order of half a millennium

re inline comment on 24, What I noted was that the ocean skin equilibrium referenced in RC 5 Sept 06 could be influenced by variations in ocean currents and the cryosphere to affect atmospheric temperature on the scale of decades.

Aaron Lewis @ 24 — «What I noted was that the ocean skin equilibrium referenced in RC 5 Sept 06 could be influenced by variations in ocean currents and the cryosphere to affect atmospheric temperature on the scale of decades»

La Nina / PDO is a perfect example where changes in ocean currents / ocean upwelling affect heat transfer between the phases of the system (and cool the air)-- on a human time scale.

It is thought that the poor representation of ocean upwelling in current models has larger scale impacts reducing the accuracy of model projections on a global scale.

The cyclic ocean currents (for example) operate on time scales similar to the solar cycle.

Whatever wide - ranging coherence one finds at multi-decadal frequencies is more likely the result of global - scale variations in cloud - regulated thermalization of solar irradiance and the lagged advection of heat from the tropics by winds and ocean currents.

Hence from the point of view of the atmosphere, the ocean can be considered effectively stationary; from the point of view of the ocean, the atmosphere imposes a significant wind stress on its surface, and this forces large - scale currents in the ocean.

Oceanic currents are largely driven by the surface wind stress; hence the large - scale atmospheric circulation is important to understanding the ocean circulation.

southern oscillation a large - scale atmospheric and hydrospheric fluctuation centered in the equatorial Pacific Ocean; exhibits a nearly annual pressure anomaly, alternatively high over the Indian Ocean and high over the South Pacific; its period is slightly variable, averaging 2.33 years; the variation in pressure is accompanied by variations in wind strengths, ocean currents, sea - surface temperatures, and precipitation in the surrounding Ocean; exhibits a nearly annual pressure anomaly, alternatively high over the Indian Ocean and high over the South Pacific; its period is slightly variable, averaging 2.33 years; the variation in pressure is accompanied by variations in wind strengths, ocean currents, sea - surface temperatures, and precipitation in the surrounding Ocean and high over the South Pacific; its period is slightly variable, averaging 2.33 years; the variation in pressure is accompanied by variations in wind strengths, ocean currents, sea - surface temperatures, and precipitation in the surrounding ocean currents, sea - surface temperatures, and precipitation in the surrounding areas

The results also highlight coastal regions that are well - represented in current generation climate models (and those that are not) and the time periods over which coastal sea level may be used as a proxy for the large - scale ocean circulation.

Events of a lesser scale leave the air circulation movements in a position to maintain the current temperature both in oceans and air.

Local knowledge of recurring ice retreat patterns constrained by, e.g., topography or ocean currents can further enhance outlooks at the regional scale, which is also discussed for the NWP below.

Oceans are not perfectly still buckets — geostrophic winds and currents influence geopotential heights of water surfaces differently everywhere and at decadal and longer scales.

Must be some significant cause and effect to saltier brine water melting and re-freezing every year and sinking into the thermocline that affects ocean currents over long term time scales.

As ocean temperatures rise, some species of corals are likely to succeed at the expense of others, according to a report published online on April 12 in the Cell Press journal Current Biology that details the first large - scale investigation of climate effects on corals.

These concern the large - scale general circulations of the atmosphere and ocean, and they are in principle represented in current comprehensive coupled climate models.

Other feared effects — such as the sudden release of large volumes of methane from thawing Arctic tundra or the disruption of the Atlantic Ocean currents that carry warm water into the northern latitudes — were given a low chance of occurring on a rapid scale.

There is no doubt that human activity can change local conditions, but on a global scale natural processes including variations in solar output and ocean currents control climatic conditions.

The fractal scaling behavior in the power spectra of 1 / f fluctuations abounds in astrophysical phenomena (Press 1978:103): the Gutenberg - Richter law of earthquakes (Scholz 1991:41), volcanic activity (Scholz 1991:41), the flow rate of the Nile (Mandelbrot & Wallis 1969:321), ocean currents (Taft & Hickery 1974:403) and daily average air humidity fluctuations (Vattay & Harnos 1993, unpublished).

As most of the excess heat and greenhouse gases from climate change or even chemical pollutants will go into the ocean, ocean large - scale currents will recirculate that extra load and, at some point, will release some of it back to the atmosphere, where it will keep raising temperatures, regardless of future carbon dioxide emissions scenarios.

Principal changes in the physics in the current version of the model are use of a step - mountain C - grid atmospheric vertical coordinate [109], addition of a drag in the grid - scale momentum equation in both atmosphere and ocean based on subgrid topography variations, and inclusion of realistic ocean tides based on exact positioning of the Moon and Sun.

The westerlies of middle latitudes and the trade winds of the tropics drive the most prominent features of ocean surface motion, large - scale roughly circular current systems elongated in the east - west direction known as gyres.

http://illconsidered.blogspot.com/2006/04/historically-co2-never-causes.html 100 years of shift does not factor into the larger scale phenomena http://illconsidered.blogspot.com/2006/01/one-hundred-years-is-not-enough.html Until climatologists can properly make models that reflect the entire global history and take into account plate position and how high the plates ride, oceanic levels due to this and the position of oceans, overall insolation, overall daylength and its effects on average global temperature and factor in known carbon dioxide levels over that time period, then they will be unable to give any correlation between current carbon dioxide levels and global temperature.

Large - scale changes in ocean currents like the AMOC «are not unprecedented,» she added.

Gyre - Basin - scale ocean horizontal circulation pattern with slow flow circulating around the ocean basin, closed by a strong and narrow (100 - 200 km wide) boundary current on the western side.

Not only do the oceans contain a maze of often shifting current systems, they are filled with turbulence that can be viewed on a scale of just a cubic centimeter to the thousands of swirling eddies a few hundred kilometers wide.

Using atmospheric general - circulation models, as well as coupled ocean - atmosphere models, he investigates the interactions between large - scale climate systems such as ocean and wind currents to understand natural variability and how climate responds to human - made forcings.

The powerful Antarctic Circumpolar Current began to sweep all the way around the continent, effectively isolating Antarctica from most of the warmth from the global oceans and provoking large - scale cooling.

Scaled to the entire circumpolar current, the mixing we observe is compatible with there being a southern component to the global overturning in which about 20 sverdrups (1 Sv = 106 m3 s − 1) upwell in the Southern Ocean, with cross-density mixing contributing a significant fraction (20 to 30 per cent) of this total, and the remainder upwelling along constant - density surfaces.

The researchers, most of them based at Columbia University's Lamont - Doherty Earth Observatory, say it cements the theory that atmospheric moisture, and thus dust, move in close step with temperature on a global scale; the finding may in turn help inform current ideas to seed oceans with iron - rich dust in order to mitigate global warming.

Water in ocean currents stores MUCH larger amounts of kinetic energy, but unless the currents are getting faster and larger on a global scale, you can't hide energy there either.

In this paper, it is shown that coherent large - scale low - frequency variabilities in the North Atlantic Ocean — that is, the variations of thermohaline circulation, deep western boundary current, northern recirculation gyre, and Gulf Stream path — are associated with high - latitude oceanic Great Salinity Anomaly events.