Sentences with phrase «changes in ocean volume»

There is a variety of physical processes that can contribute to changes in ocean volume, including tectonic activity, undersea eruptions of magma and thermal vents, and silt deposition.

Even very small changes in ocean volume add up to a lot of sea level rise.

Not exact matches

Ocean volume is a significant factor in sea - level change, Horton said.

The ocean conveyor system, Rutgers scientists believe, changed at the same time as a major expansion in the volume of the glaciers in the northern hemisphere as well as a substantial fall in sea levels.

The past climates that forced these changes in ice volume and sea level were reconstructed mainly from temperature - sensitive measurements in ocean cores from around the globe, and from ice cores.

Positive energy content change means an increase in stored energy (i.e., heat content in oceans, latent heat from reduced ice or sea ice volumes, heat content in the continents excluding latent heat from permafrost changes, and latent and sensible heat and potential and kinetic energy in the atmosphere).

Writing in Nature Climate Change, two scientists from the Potsdam Institute for Climate Impact Research (PIK) say the melting of quite a small volume of ice on the East Antarctic shore could ultimately trigger a discharge of ice into the ocean which would result in unstoppable sea - level rise for thousands of years ahead.

The latter is almost linearly related to changes in ice sheet volume; the former, however, is influenced by a range of factors, including atmosphere / ocean dynamics and changes in Earth's gravitational field, rotation, and crustal and the mantle deformation associated with the redistribution of mass between land ice and the ocean.

It seems to me that they must show deeper mixing than 50 M, since there is not enough mass in the upper 50 meters of ocean to account for the annual heat storage changes that are implied by observations for the the full integrated 700 meter volume of ocean.

The changes in volume over a season also tell us how much ice is produced, how much heat is extracted from the ocean, how much brine is injected into the ocean as a result of ice growth and how much melt water is injected back into the ocean.

Steric sea level is driven by volume changes through ocean salinity (halosteric) and ocean temperature (thermosteric) effects, from which the latter is known to play a dominant role in observed contemporary rise of GSSL.

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.

So, I was curious about your recent paper and whether there was any discussion of changes in the THC poleward of the GIS shelf vs the data from the RAPID program line located at 26.5 N. With the decline in minimum extent and volume of sea - ice, one might expect to see more THC sinking into the Arctic Ocean, with consequences for both climate and weather.

On decadal and longer time scales, global mean sea level change results from two major processes, mostly related to recent climate change, that alter the volume of water in the global ocean: i) thermal expansion (Section 5.5.3), and ii) the exchange of water between oceans and other reservoirs (glaciers and ice caps, ice sheets, other land water reservoirs - including through anthropogenic change in land hydrology, and the atmosphere; Section 5.5.5).

The resulting picture shows that ice volume has changed much more dramatically than ocean temperatures in response to changes in orbital geometry.

Whether it exists as ice or water, it still has the same mass, it still displaces the same volume and there's no change in the volume of the ocean if it melts.

Dr. Curry implies (as far as I understood it) The «stadium wave» hypothesis is based by interplay between North Atlantic Ocean temperatures oscillation (AMO) and the changes in the sea ice volumes in the Siberian Arctic Ocean region.

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.»

► Eustatic sea - level rise is a change in global average sea level brought about by an increase in the volume of the world ocean.

http://www.vukcevic.talktalk.net/NFC1.htm http://www.vukcevic.talktalk.net/LFC20.htm Re UV: This is a copy of a note I wrote some 5 - 6 years ago with minor changes (I occasionally quote it here and there since I think it still has some merit) Both UV and the particle radiation (particle radiation is a function of solar activity and the strength of Van Allen belt, via the Earth's field strength) could have far larger indirect contribution by controlling plankton volumes, and in turn changing the oceans» clarity and CO2 absorption.

Sea level changes can be driven by either variations in the masses or volume of the oceans («eustatic»), or by changes of the sea surface relative to the land («relative»).

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.

In almost all IPCC models under climate change forcing, the ocean occupies a fixed geographical volume.

In all of these simple models, we assume the atmosphere to have a volume as fixed as a bathtub, we assume that the atmosphere / ocean system is a closed system, we assume that the incoming radiation from the Sun is constant, we assume no turbulence, we assume no viscosity, we assume radiative equilibrium with no feedback lag, we take no account of water vapor flux assuming it to be constant, no change in albedo from changes in land use, glacier lengthening and shortening, no volcanic eruptions, no feedbacks from vegetatioIn all of these simple models, we assume the atmosphere to have a volume as fixed as a bathtub, we assume that the atmosphere / ocean system is a closed system, we assume that the incoming radiation from the Sun is constant, we assume no turbulence, we assume no viscosity, we assume radiative equilibrium with no feedback lag, we take no account of water vapor flux assuming it to be constant, no change in albedo from changes in land use, glacier lengthening and shortening, no volcanic eruptions, no feedbacks from vegetatioin albedo from changes in land use, glacier lengthening and shortening, no volcanic eruptions, no feedbacks from vegetatioin land use, glacier lengthening and shortening, no volcanic eruptions, no feedbacks from vegetation.

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.

To a first approximation, sea - level changes reflect the volume of ocean water bound in continental ice sheets during the ice ages.

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.

However, the uncertainty in the reconstructed sea level is tens of metres and the uncertainty in the Mg / Ca temperature is sufficient to encompass the result from our δ18O prescription, which has comparable contributions of ice volume change and deep ocean temperature change at the Late Eocene glaciation of Antarctica.

In the ocean and atmosphere interface the direction and rate of flow is determined by pressure and the volume by the phase changes of water.

A: The volume integral (heat balance equation) as presented in Pielke (2003) http://blue.atmos.colostate.edu/publications/pdf/R-247.pdf suggests that the changes in ocean heat storage averaged over a year are a snapshot of the radiative imbalance at the top of the atmosphere.

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.

This is not perfect because it is likely that climate effects such as ocean currents and oscillations, changes in biology, ice extent and volume changes, cloud cover variations, etc... are causing a kind of climactic Brownian Motion, hiding the signal in what, lacking deep understanding of these issues, we can only call noise.

And while the general narrative has stayed the same — large nutrient inputs derived from fertilizer and pesticide run - off turn once vibrant ecosystems into barren, lifeless deserts — some new science suggests climate change will play a role in exacerbating an already dire situation, expanding the volume of dead zones in tropical oceans by up to 50 percent over the coming century.

MODELING OF FUTURE ARCTIC SEA ICE CHANGE «Given the estimated trend and the volume estimate for October — November of 2007 at less than 9,000 km3 (Kwok et al. 2009), one can project that at this rate it would take only 9 more years or until 2016 ± 3 years to reach a nearly ice - free Arctic Ocean in summer.»

We're looking for an average temperature change of perhaps 0.01 C in an ocean where 90 % its volume is at a nearly constant 3C.

It then becomes a question of separating volume changes due to thermal factors from volume changes due to more or less water in the ocean.

This number is subtracted from altimetry - derived global mean sea level in order to obtain the contribution due to ocean (water) volume change.