Sentences with phrase «sheet changes during»

And through detailed studies of the local physics of ice - sheet changes and more refined reconstructions of ice - sheet changes during warm periods of the geological past, scientists may become able to distinguish between the two roads sooner.

Not exact matches

It's standing outside in the changing woods, still, watching the leaves pirouette down in sheets during a gust of wind.
Use your fingers to gently flatten and shape the cookies on the baking sheet as the their shape does not change much during baking.
There are few things worse during bedtime than having to not only change your child's clothes but their sheets as well.
When those inevitable leaks happen, it is good to have plenty of replacement sheets handy for quick changes during the night or naptime.
If your baby vomits from crying, wets the bed during potty training or spits up after a feeding, changing the crib sheets can take a long time and really stretch out your child's wake - time in the night or before a sleep period.
The cover is easily removable for changes during the night, and the seams are designed to make sheets fit easily.
The NPP MP claims Mr Anyidoho attempted to coerce a police officer to change the charge sheet of arrested drug baron Asem Darkey aka «Limping man», all in an attempt to implicate him (Ken) in a drug - related scandal a couple of years ago during the tenure of the late President John Evans Atta Mills.
Scientists may also become able to distinguish between different scenarios sooner by studying the physics of local ice - sheet changes and refining reconstructions of changes during warm periods in geological history.
Their field - based data also suggest that during major climate cool - downs in the past several million years, the ice sheet expanded into previously ice - free areas, «showing that the ice sheet in East Greenland responds to and tracks global climate change,» Bierman says.
New research shows that small fluctuations in the sizes of ice sheets during the last ice age were enough to trigger abrupt climate change.
Professor Richard Pancost from the University of Bristol Cabot Institute, added: «When we account for the influence of the ice sheets, we confirm that the Earth's climate changed with a similar sensitivity to overall forcing during both warmer and colder climates.»
Huybrechts, P., 2002: Sea - level changes at the LGM from ice - dynamics reconstructions of the Greenland and Antarctic ice sheets during the glacial cycles.
That estimate was based in part on the fact that sea level is now rising 3.2 mm / yr (3.2 m / millennium)[57], an order of magnitude faster than the rate during the prior several thousand years, with rapid change of ice sheet mass balance over the past few decades [23] and Greenland and Antarctica now losing mass at accelerating rates [23]--[24].
During periods when ice sheets have been relatively stable, such as the last several millennia (the late Holocene), sub-millennial sea - level variability arose primarily from changes in atmosphere / ocean dynamics.
The ice sheet's thickness makes its temperature much more resistant to change than the six inches of snow that might fall on your driveway during a winter snowstorm.
There's also Jeffrey Dean Morgan's OGA special agent Russell, a tough of nails government «cowboy» — when science shits the bed, he's the one who changes the sheets, so the character informs us during his introduction to proceedings.
Because UnCruise Adventures is committed to eco-cruising (and uses green cleaning supplies), bed sheets aren't changed during the week.
Here we show that fluctuations in Antarctic Ice Sheet discharge caused by relatively small changes in subsurface ocean temperature can amplify multi-centennial climate variability regionally and globally, suggesting that a dynamic Antarctic Ice Sheet may have driven climate fluctuations during the Holocene.
Rapid sea - level changes (10 meters within 1000 years) were found in ancient coral reefs: Thompson and Goldstein (2005); Blanchon et al. (2009) found a «2 — 3 - m jump in sea level» in a century, presumably due to ice sheet instability, during a period warmer than the 20th century.
However, substantial ice sheet changes that occurred during the last hundreds to few thousands of years remain poorly quantified and are not included in our model.
The ice sheet's thickness makes its temperature much more resistant to change than the six inches of snow that might fall on your driveway during a winter snowstorm.
A simple ice budget calculation from ESL records demonstrates that the change in ice volume over Antarctica during the Late Glacial was at least comparable with the Scandinavian ice sheet, and quite possibly larger.
Most of the whiplash climate changes of the past were during icy periods that had ice sheets in Canada and Scandinavia.
That estimate was based in part on the fact that sea level is now rising 3.2 mm / yr (3.2 m / millennium)[57], an order of magnitude faster than the rate during the prior several thousand years, with rapid change of ice sheet mass balance over the past few decades [23] and Greenland and Antarctica now losing mass at accelerating rates [23]--[24].
Mass Gains of the Antarctic Ice Sheet Exceed Losses http://ntrs.nasa.gov/search.jsp?R=20120013495 SCAR ISMASS Workshop, July 14, 2012 «During 2003 to 2008, the mass gain of the Antarctic ice sheet from snow accumulation exceeded the mass loss from ice discharge by 49 Gt / yr (2.5 % of input), as derived from ICESat laser measurements of elevation cSheet Exceed Losses http://ntrs.nasa.gov/search.jsp?R=20120013495 SCAR ISMASS Workshop, July 14, 2012 «During 2003 to 2008, the mass gain of the Antarctic ice sheet from snow accumulation exceeded the mass loss from ice discharge by 49 Gt / yr (2.5 % of input), as derived from ICESat laser measurements of elevation csheet from snow accumulation exceeded the mass loss from ice discharge by 49 Gt / yr (2.5 % of input), as derived from ICESat laser measurements of elevation change
From the Greenland cores there are two really important considerations; (1) ~ 130k DOES NOT get us back to the start of the last interglacial, from which one can infer that the Greenland sheet may have completely melted away during the inception and early millenia of the Eemian, and (2) the better resolution of Greenland ice (as opposed to Antarctic ice) has repeatedly shown that temperature changes precede CO2 changes.
To a first approximation, sea - level changes reflect the volume of ocean water bound in continental ice sheets during the ice ages.
One implication is that if humans burn most of the fossil fuels, thus injecting into the atmosphere an amount of CO2 at least comparable to that injected during the PETM, the CO2 would stay in the surface carbon reservoirs (atmosphere, ocean, soil, biosphere) for tens of thousands of years, long enough for the atmosphere, ocean and ice sheets to fully respond to the changed atmospheric composition.
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20120013495.pdf During 2003 to 2008, the mass gain of the Antarctic ice sheet from snow accumulation exceeded the mass loss from ice discharge by 49 Gt / yr (2.5 % of input), as derived from ICESat laser measurements of elevation change.
During the program, Beck put forth an apples - to - oranges comparison by suggesting that the 2007 Intergovernmental Panel on Climate Change (IPCC) report contradicts Gore's statement in An Inconvenient Truth, that if the West Antarctic or Greenland ice sheets were to break up or melt, «sea level worldwide would go up 20 feet»:
Based on ice - sheet model simulations consistent with elevation changes derived from a new Greenland ice core, the Greenland ice sheet very likely contributed between 1.4 m and 4.3 m sea level equivalent, implying with medium confidence a contribution from the Antarctic ice sheet to the global mean sea level during the last interglacial period.
The assumption that the rate of change of sea level rise from those components that were small during the 20th century and which have been attributed to ice sheets would scale with global temperature change leads to a strong and unlimited amplification of future sea level rise when global temperatures continue to increase.
Ice sheets will continue to react to climatic change during the next several thousand years, even if the climate is stabilised.
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