Sentences with phrase «ocean basin change»

It is the net impact of multiple ocean surface temperature changes, rather than a single ocean basin change, that plays a main driver for the multi-decadal global warming accelerations and slowdowns.
«Here we're seeing an ocean basin changing on a generational timescale — or less,» he adds.

Not exact matches

«The study demonstrates a robust century - scale link between ocean circulation changes in the Atlantic basin and rainfall in the adjacent continents during the past 4,000 years,» said UTIG Director Terry Quinn, a co-author on the study.
«Numerous changes in climate have been observed at the scales of continents or ocean basins.
One of the subtle changes visible in the new data - set is how the Amazon's greenness corresponds to one of the long - known causes of rainfall or drought to the Amazon basin: changes in sea surface temperatures in the eastern Pacific Ocean, called the El Nino Southern Oscillation.
While there are regional differences in the poleward movement of cyclones, the fact that every ocean basin other than the northern Indian Ocean has experienced this change leads the researchers to suggest, in the paper, that this «migration away from the tropics is a global phenomenon.&rocean basin other than the northern Indian Ocean has experienced this change leads the researchers to suggest, in the paper, that this «migration away from the tropics is a global phenomenon.&rOcean has experienced this change leads the researchers to suggest, in the paper, that this «migration away from the tropics is a global phenomenon.»
The study shows that changes in heat distribution between the ocean basins is important for understanding future climate change.
For scientific purposes, the Antarctic ice sheet is often divided into catchment basins so that comparative measurements can be taken to work out how the ice in each basin is changing and discharging ice to the oceans.
This one been thelongest of the three as hot ocean temperatures fueled by El Niño and climate change have caused reefs to suffer across every ocean basin.
The research team found that deoxygenation caused by climate change could already be detected in the southern Indian Ocean and parts of the eastern tropical Pacific and Atlantic basins.
Other ocean basins have also seen changes to their seasons.
Examination of the geographical distribution of the differences in 0 to 700 m heat content between the 1977 — 1981 and 1965 — 1969 pentads and the 1986 — 1990 and 1977 — 1981 pentads shows that the pattern of heat content change has spatial scales of entire ocean basins and is also found in similar analyses by Ishii et al. (2006).
We review data on the absorption of anthropogenic CO2 by Northern Hemisphere marginal seas (Arctic Ocean, Mediterranean Sea, Sea of Okhotsk, and East / Japan Sea) and its transport to adjacent major basins, and consider the susceptibility to recent climatic change of key factors that influence CO2 uptake by these marginal seas.
Observed changes in ocean heat content have now been shown to be inconsistent with simulated natural climate variability, but consistent with a combination of natural and anthropogenic influences both on a global scale, and in individual ocean basins.
Changes in sea floor spreading rates effect the volume of the mid-oceanic ridges which may contribute to changes in the volume of the ocean Changes in sea floor spreading rates effect the volume of the mid-oceanic ridges which may contribute to changes in the volume of the ocean changes in the volume of the ocean basins.
Can we consider the ocean basin volume as static for the purpose of sea level change prediction because the speed of water inputs will far outstrip the speed of mantle movements?
Sea level change based on satellite altimetry is measured with respect to the Earth's centre of mass, and thus is not distorted by land motions, except for a small component due to large - scale deformation of ocean basins from GIA.
The reason for a lack of short term correlation is probably that, absent a volcanic eruption, the Atlantic is warmer during an El Nino BUT the wind shear is greater, thus destroying, on such occasions, the agreement you would normally get with multidecadal changes in SST in the Atlantic RELATIVE to other ocean basins.
• What are some other impacts of climatic variability during the MCA / MWP regarding such topics as changes in ocean basin tropical cyclone activity?
We do know that ocean basins produce this oscillatory behavior — the El Nino / Southern Oscillation, the Arctic Oscillation, the Pacific Decadal Oscialltion, the NAO, the Madden - Julian Oscillation (Indian Ocean), but they seem to have a bit of a random component, their forcing mechanisms are poorly understood, their «phase changes» appear impossible to predict very far in advance, and they must also be sensitive to the overall climate warocean basins produce this oscillatory behavior — the El Nino / Southern Oscillation, the Arctic Oscillation, the Pacific Decadal Oscialltion, the NAO, the Madden - Julian Oscillation (Indian Ocean), but they seem to have a bit of a random component, their forcing mechanisms are poorly understood, their «phase changes» appear impossible to predict very far in advance, and they must also be sensitive to the overall climate warOcean), but they seem to have a bit of a random component, their forcing mechanisms are poorly understood, their «phase changes» appear impossible to predict very far in advance, and they must also be sensitive to the overall climate warming.
SLR satellite data includes things such as the «GIA Adjustment» — which is the amount of SLR that there would have been if the ocean basin hadn't increased in volume and in the case of this new study, how much higher the sea surface would have been if it had not been suppressed by the Mount Pinatubo volcanic eruption, another correction for ENSO / PDO «computed via a joint cyclostationary empirical orthogonal function (CSEOF) analysis of altimeter GMSL, GRACE land water storage, and Argo - based thermosteric sea level from 2005 to present», as well as other additions and adjustments — NONE OF WHICH can actually be found manifested in any change to the physical Sea Surface Height.»
In fact, I have already attempted that and my New Climate Model not only incorporates that «stadium» wave» as it works through the ocean basins but also places it within an overall climate change description.
In addition to the ever - changing shape and depth of the ocean basins and coastal zone boundaries, one must also bear in mind the «leaky Earth»: There appears to be a continuous exchange of water between the ocean bottom and the Earth's crust, as Professor Shige Maruyama of Tokyo Institute of Technology has shown.
Sea level change - Sea level can change, both globally and locally, due to (i) changes in the shape of the ocean basins, (ii) changes in the total mass of water and (iii) changes in water density.
Eustatic change (as opposed to local change) results in an alteration to the global sea levels due to changes in either the volume of water in the world's oceans or net changes in the volume of the ocean basins.
cooling in the North Atlantic basin due to changes in ocean currents.
The observed changes in salinity are of global scale, with similar patterns in different ocean basins (Figure 5.6).
The adjacent charts (courtesy of ocean expert Bob Tisdale) plot the temperature changes for each major ocean basin since late 1981.
The finding stems from more than a decade of effort to virtually reconstruct ancient ocean basins to understand how their size and depth have changed since the Cretaceous, which lasted from 145.5 to 65.5 million years ago.
This basin - wide change in the Atlantic climate (both warming and cooling) induces a basin - scale sea surface temperature seesaw with the Pacific Ocean, which in turn modifies the position of the Walker circulation (the language by which the tropical basins communicate) and the strength of the Pacific trade winds.
I don't take exception with what you're saying about warming, etc, but that limits the dynamics that could be at play, including changes in the ocean basins, tectonics, etc..
Having said that, similar changes in tropical cyclone detection also seem to have occurred for each of the other basins, e.g., Hoarau et al., 2012 (Abstract) suggest that incomplete satellite coverage during the 1980s and early 1990s led to an underestimation of cyclone intensity in the northern Indian Ocean basin.
The fact that this 3 % error is robust among the different ocean basins provides evidence for changes in the instrumentation, such as changes in the terminal velocity of the XBTs.
States that a significant increase in salinity has been observed in recent decades in the 20N — 50N latitude band of the Atlantic ocean, although changes at sub ‐ polar latitudes of the Atlantic, and in other ocean basins, are not found to be significant compared to modeled internal variability
The change in shape of ocean basins causes a change in a property known as resonance.
In the new study, scientists simulated the movement of Earth's tectonic plates and changes in the resonance of ocean basins over millions of years.
sea level changes vary enormously according to the ocean basin and geography.
The former redistributes ocean volume within the basins, while the latter alters Earth's gravitational field and rate of rotation enough to change the distribution of ocean mass around the surface of the Earth.
Then you can explain how a regional SST change can cause OHC to rise simultaneously in all major ocean basins for four decades (and counting).
A recent comprehensive review [7] reveals that there are still wide uncertainties about the Earth's sea - level history that are especially large for time scales of tens of millions of years or longer, which is long enough for substantial changes in the shape and volume of ocean basins.
b) volumetric effects — change in the volume of water contained in the oceans and the geometry and areal extent of the ocean basins c) gravitational effects — change in the gravitational attraction of the earth (induced by deformation), by the change in distribution of ice and by the change in self - attraction of the water d) rotational effects — change in the moment of inertia caused by a change in the distribution of mass within the earth and on its surface.
The TAR noted that evidence for changes in tropical cyclones (both in number and in intensity) across the various ocean basins is often hampered by classification changes.
«Third, in a period when ocean basins were similar to modern, ice age climate sensitivity to pCO2 changes is underestimated by climate models even when long term changes in solar forcing and ice sheet size and distribution are taken into account, implying that internal positive feedbacks are stronger than previously thought.»
They identified regional differences, but found that every ocean basin except the northern Indian Ocean had experienced such a chocean basin except the northern Indian Ocean had experienced such a chOcean had experienced such a change.
Geologists are able to identify sea level changes that occurred world wide in all the open ocean basins and they use these to correlate and identify the ages of the sediments from basin to basin.
Using global climate model simulations that replicated the ocean basins and landmasses of this period, it appears that changes in ocean circulation due to warming played a key role.
So while one might speculate that some of the changes in tropical Atlantic hurricane statistics could be related to cyclic changes in climate (i.e., the AMO), it is very difficult to argue this for hurricane statistics in other ocean basins, let alone global average hurricane statistics.
Consensuses and discrepancies of basin - scale ocean heat content changes in different ocean analyses
These experiments provide new insight into mechanisms of past climate changes on Earth, which have been driven in part by tectonic changes in ocean basins and consequent changes in ocean circulation and heat transport.
And I DO know that ANYTHING that changes the volume of the ocean OR the volume of the ocean basins by 36O km ^ 3 will result in a change in sea level by 1 mm.
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