Sentences with phrase «sheet during interglacials»

Not exact matches

A recent study by Robert Kopp at Princeton University (Nature, DOI: 10.1038 / nature08686) suggests sea levels were 8 to 9 metres higher than now during the last interglacial, in part due to the west Antarctic ice sheet melting.

Many of the glaciers that jut out into the ocean are thinning, but whether the ice sheet itself has remained stable and intact, even during warm interglacial periods, is a matter of considerable debate.

The fact that ice sheets will respond to warming is not in doubt (note the 4 - 6 m sea level rise during the last interglacial), but the speed at which that might happen is highly uncertain, though the other story this week shows it is ongoing.

In a study out of the University of Arizona, researchers found that melting ice sheets had a greater impact on sea level rise than the thermal expansion of the oceans during the previous interglacial period 125,000 years ago.

During the Middle Pleistocene, ice sheets were reaching the continental shelf for longer, with more distinct glacial - interglacial cyclicity [28].

During this period, the West Antarctic Ice Sheet and Antarctic Peninsula Ice Sheets together grew successively larger, with periodic collapses during interglaDuring this period, the West Antarctic Ice Sheet and Antarctic Peninsula Ice Sheets together grew successively larger, with periodic collapses during intergladuring interglacials.

(Right) Extents and thicknesses of the Greenland Ice Sheet and western Canadian and Iceland glaciers at their minimum extent during the last interglacial, shown as a multi-model average from three ice models.

There is very high confidence that maximum global mean sea level during the last interglacial period (~ 129 to 116 ka) was, for several thousand years, at least 5 m higher than present and high confidence that it did not exceed 10 m above present, implying substantial contributions from the Greenland and Antarctic ice sheets.

Persistent influence of ice sheet melting on high northern latitude climate during the early Last Interglacial.

222 Kurt M. Cuffey and Shawn J. Marshall, «Substantial contribution to sea - level rise during the last interglacial from the Greenland ice sheet,» Nature 404:591 - 594 (2000).

However, this situation ended when the freshwater flux from ice - sheet melting decreased and a newly enhanced thermohaline circulation in the Atlantic was likely to have extended the interglacial warmth during the latter part of the Last Iinterglacial warmth during the latter part of the Last InterglacialInterglacial.

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.

Our estimated sea levels have reached +5 to 10 m above the present sea level during recent interglacial periods that were barely warmer than the Holocene, whereas the ice sheet model yields maxima at most approximately 1 m above the current sea level.

CO2 minima were reached approximately when the sea level was at a minimum, hence, the extent of the continental ice sheets were at a maximum, and the highest CO2 levels were found during interglacials during the high stands of the sea level.

Delayed maximum northern European summer temperatures during the Last Interglacial as a result of Greenland Ice Sheet melt

Predictions of future sea - level rise and reduction in volume of ice sheets are consistent with what the evidence indicates during the Last Interglacial.

Ice sheet collapse following a prolonged period of stable sea level during the last interglacial.

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 fact that ice sheets will respond to warming is not in doubt (note the 4 - 6 m sea level rise during the last interglacial), but the speed at which that might happen is highly uncertain, though the other story this week shows it is ongoing.