Sentences with phrase «less upwelling»

While the reverse — no wind — causing less upwelling and so «warming», is the other possibility.

Have a look at ENSO: One mode is less upwelling of cold deep water, change in SST, trade winds and air pressure, but also cloud cover, another mode is the opposite.

Warming would lead to ocean stratification and less upwelling.

The mechanism is UV / ozone chemistry modulating both the northern and southern annular modes — spinning up winds and currents at lower latitudes and biasing the system to more or less upwelling in the eastern Pacific.

The trigger for more or less upwelling is more or less flow in the Peruvian and Californian currents.

Several authors have reported less upwelling during the Ice Age.

More or less upwelling in the eastern Pacific is linked to changes in wind and gyre circulation — in both hemispheres — driven by changes in surface pressure in the polar annular modes.

More or less upwelling off the North American coast persists for decades.

There is also less upwelling of cool water from below the surface when the trade winds weaken.

As mentioned here, as the troposphere becomes more optically thick, the height at which IR is released to space is higher and cooler which means there is less upwelling IR to the regions above the troposphere.

Now, you have less upwelling cold water to heat up, and you get more warming — as in El Nino (a la 1998).

One explanation (ix) conceived in the 1980s invokes more stratification, less upwelling of carbon and nutrient - rich waters to the surface of the Southern Ocean and increased carbon storage at depth during glacial times.

One of the consequences of the high pressure was that there was less upwelling of the water in the ocean.

Not exact matches

This happened in two steps: First, in the Antarctic zone of the Southern Ocean, a reduction in wind - driven upwelling and vertical mixing brought less deep carbon to the surface.

My research indicates that the Siberian peat moss, Arctic tundra, and methal hydrates (frozen methane at the bottom of the ocean) all have an excellent chance of melting and releasing their stored co2.Recent methane concentration figures also hit the news last week, and methane has increased after a long time being steady.The forests of north america are drying out and are very susceptible to massive insect infestations and wildfires, and the massive die offs - 25 % of total forests, have begun.And, the most recent stories on the Amazon forecast that with the change in rainfall patterns one third of the Amazon will dry and turn to grassland, thereby creating a domino cascade effect for the rest of the Amazon.With co2 levels risng faster now that the oceans have reached carrying capacity, the oceans having become also more acidic, and the looming threat of a North Atlanic current shutdown (note the recent terrible news on salinity upwelling levels off Greenland,) and the change in cold water upwellings, leading to far less biomass for the fish to feed upon, all lead to the conclusion we may not have to worry about NASA completing its inventory of near earth objects greater than 140 meters across by 2026 (Recent Benjamin Dean astronomy lecture here in San Francisco).

There is less absorption by CO2 of upwelling infra - red light above the troposphere, but increased emission as a function of increased concentrations.

Moreover, it is found that polarized reflectances obtained at the shorter wavelengths (0.41 and 0.55 µm) are significantly less sensitive to the contribution of the ocean's upwelling light than total reflectance measurements, providing a natural tool for the separation between the estimation of oceanic and atmospheric scattering properties.

The decadal regimes see more or less cold and nutrient rich upwelling in the eastern Pacific — influencing hydrology, biology and surface temperature globally.

A high (low) pressure regime triggers more (less) eastern Pacific upwelling and the planetary feedbacks that ensue.

Because the upwelling is less the ocean surface is warmer.

One would expect the dismal ocean to cool in an El Nino since the upwelling is less.

More or less flow in the Peruvian Current enhances or otherwise upwelling in the region of the Humboldt Current.

Because the active region of convective clouds is located relatively in the eastern Pacific sector during El Niño events, it is suggested that the stronger upwelling and the higher tropopause associated with the convective cloud activity bring about less total ozone.»

When you get upwelling in the eastern Pacific that propagates across the equatorial Pacific — there is less IR loss from the surface and the troposphere cools.

The Pacific Decadal Variation is a system that switches from more or less cold, nutrient - rich, deep ocean upwelling every 20 to 30 years.

Some 5,000 years ago there was a change from more upwelling to less — that dried the Sahel.

More salt is a cool Pacific state (less eastern margin upwelling).

When the Walker circulation weakens or reverses, an El Niño results, causing the ocean surface to be warmer than average, as upwelling of cold water occurs less or not at all.

More parsimoniously either that one station experienced greater upwelling, or there was less wind mixing to deepen the neutralizing effect.

After all a slightly less cold upwelling entering the ENSO process from below would manifest itself in warming at the surface (and vice versa) and that would help to account for the apparent disjunction between the strengths of the La Nina and El Nino phases in your article.

Both phenomenon are the result of more or less cold and nutrient rich upwelling in the eastern Pacific.

ENSO (El Niño Southern Oscillation) variability is linked to the spinning up or down of the South Pacific gyre — as it brings more or less cold Southern Ocean water northward — along the Peruvian coast — to more or less displace warm surface water and initiate upwelling.

But you suggested that the 1995/96 rise in Tropical Pacific OHC may have come from below the 700 meter level, when you wrote, «After all a slightly less cold upwelling entering the ENSO process from below would manifest itself in warming at the surface (and vice versa) and that would help to account for the apparent disjunction between the strengths of the La Nina and El Nino phases in your article.»

That the Pacific phenomenon involve upwelling suggests that more or less flow in cold currents — the Peruvian and Californian Currents — displace more or less of the overlaying warm ocean layer.

We assumed only that due to the biological and physical effects the ratio fabsorbed (t) / (total CO2 content of then air) is more or less constant, hence a simple response pulse response exp -LRB-- t / lifetime) is applied to the anthropic time series of coal, gas, oil and cement which have different delta13C As the isotopic signature of (CO2 natural)(t) is slowly decreasing because plants living days or centuries ago are now rotting and degassing and as molecules entered in the ocean decades ago are now in the upwellings after a slow migration along the equal density surface from the high latitudes where those surface are surfacing at depth zero, there are common sense constraints or bounds on the possible evolution of the delta13C of the natural out - gassed CO2 molecules.

Maybe he is just being colloquial, and less mixing automatically means horizontal transport from the west to him, but within oceanography his words would be nonsense because upwelling, transport and mixing have precise and separate meanings.

The California Current system is less productive than similar South American upwelling systems because of the breadth of the shelf and differences in wind stress.

For example, I think that the PDO spreads colder upwelling East Pacific water westwards over a greater fraction of the Pacific, and therefore leaves less surface room for the warmer water that deepens as a warm pool in the West Pacific.

Increased stratification as the ocean surface warms will decrease the upwellings of nutrient - rich cold water, making oceans less productive.

Presumably if the deep ocean warms significantly, that could eventually reduce the level of surface cooling due to upwelling, since there would be less overall temperature change between the deep and the surface.

They explain the lesser warming in the East Pacific Ocean, near South America, as being due to the fact this region is kept cool by upwelling, rising of deeper colder water to shallower depths.