Sentences with phrase «contributions to sea level rise from»

In AR5 WG1 SPM there are interesting changes compared with AR4 WG1 SPM concerning the estimated contributions to sea level rise from different sources (mm per year):

The warming, melting and potential contributions to sea level rise from glaciers in Greenland and West Antarctica in the face of climate change has long since been a serious concern.

Church and White (2011) examined sea level data from both tide gauges (TGs), satellite altimeter data (Sat - Alt), and the estimated contribution to the sea level rise from various sources (Figure 4).

Not exact matches

«Ice loss from this part of West Antarctica is already making a significant contribution to sea - level rise — around 1 mm per decade, and is actually one of the largest uncertainties in global sea - level rise predictions.

From that number, they have calculated Greenland's contribution to sea level rise over that time, which they estimate to be about 10 to 17 percent of the total global sea level rise of about 1 foot since 1900.

Marine Biologist Tom Iliffe, also from Texas A&M University at Galveston, said: «Providing a model for the basic function of this globally - distributed ecosystem is an important contribution to coastal groundwater ecology and establishes a baseline for evaluating how sea level rise, seaside touristic development and other stressors will impact the viability of these lightless, food - poor systems.»

Berthier, E., Schiefer, E., Clarke, G.K.C., Menounos, B. & Remy, F. Contribution of Alaskan glaciers to sea - level rise derived from satellite imagery.

Questions about the eventual contribution to rising sea levels from Greenland's eroding ice mass (and the West Antarctic Ice Sheet down south) remain hard to answer.

The contribution from glaciers and ice caps (not including Greenland and Antarctica), on the other hand, is computed from a simple empirical formula linking global mean temperature to mass loss (equivalent to a rate of sea level rise), based on observed data from 1963 to 2003.

«Alaskan and immediately adjacent Canadian glaciers supply one of the largest measured glaciological contributions to global sea level rise (~ 0.14 mm yr - 1, equivalent to new estimates from Greenland).

Thus, whatever the contribution of mass loss from the Greenland ice sheet to the huge (4 - 8 m) rise in sea level of the Eemian, it occurred under very strong temperature forcing.

If the melting rate continues to stay within those two points, and given that the current contribution to sea level from the Greenland Ice Sheet is only about 0.1 mm / year, we won't see a lot of sea level rise until later this century.

As the rate of ice loss has accelerated, its contribution to global sea level rise has increased from a little more than half of the total increase from 1993 - 2008 to 75 - 80 percent of the total increase between 2003 - 2007.

And, although freshwater discharge from deep aquifers may be locally insignificant relative to river runoff, deep aquifer discharge when integrated across the globe could account for the missing contribution to the sea level rise budgets.

The IPCC projections of sea level rise are based largely on the slow, steady and inexorable thermal expansion of the oceans (as water heats, its volume increases) with some additional contributions from the melting of mountain glaciers (almost all of which are expected to be gone by mid century).

Unfortunately quantifying the groundwater discharge contribution to sea level rise is extremely difficult, suffering from a low signal to noise problem.

An international team of experts supported by NASA and the European Space Agency (ESA) has combined data from multiple satellites and aircraft to produce the most comprehensive and accurate assessment to date of ice sheet losses in Greenland and Antarctica and their contributions to sea level rise.

The Greenland Ice Sheet during the last glacial cycle: Current ice loss and contribution to sea - level rise from a palaeoclimatic perspective.

«A semi-empirical approach to projecting future sea - level rise» «Testing the robustness of semi-empirical sea level projections» «Kinematic constraints on glacier contributions to 21st - century sea - level rise» «Contribution of Antarctica to past and future sea level rise» «Global sea level rise scenarios for the United States National Climate Assessment» «Reconstructing sea level from paleo and projected temperatures 200 to 2100AD» «Global sea level linked to global temperature» «Upper limit for sea level projections by 2100»

In fact, he said, ice flows from that glacier alone account for a quarter to a third of Antarctica's total contribution to sea level rise.

C: increase in atmospheric CO2 from pre-industrial to present is anthropogenic (D / A) S: best guess for likely climate sensitivity (NUM) s: 2 - sigma range of S (NUM) a: ocean acidification will be a problem (D / A) L: expected sea level rise by 2100 in cm (all contributions)(NUM) B: climate change will be beneficial (D / A) R: CO2 emissions need to be reduced drastically by 2050 (D / A) T: technical advances will take care of any problems (D / A) r: the 20th century global temperature record is reliable (D / A) H: over the last 1000 years global temperature was hockey stick shaped (D / A) D: data has been intentionally distorted by scientist to support the idea of anthropogenic climate change (D / A) g: the CRU - mails are important for the science (D / A) G: the CRU - mails are important otherwise (D / A)

The ice2sea projections based on simulations of physical processes suggest lower overall contributions from melting ice to sea - level rise than many studies published since AR4.

The authors find «a relatively low contribution to Last Interglacial sea level rise from Greenland melting... The resistance of Greenland to thaw despite much higher temperatures [8 C] during the last interglacial led warmist blogger Andy Rivkin of the NY Times to remark,»... Greenland doesn't need «saving»

Ancillary to Bob Loblaw's fine comment at 232, previous research has shown that ice sheet mass contributions from land - based ice sheets have exceeded thermal expansion as the biggest contributor to global sea level rise.

Interestingly, previous research has shown that ice sheet mass contributions from land - based ice sheets have exceeded thermal expansion as the biggest contributor to global sea level rise.

«Combining the evidence from ocean warming and mass loss of glaciers we conclude that it is very likely that there is a substantial contribution from anthropogenic forcing to the global mean sea level rise since the 1970s.»

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).

Present uncertainties of ice shelf mass loss are large, however, with estimates of their contribution to sea level rise ranging from a few centimeters to over one meter.

Berthier, E., E. Schiefer, G. K. C. Clarke, B. Menounos, and F. Rémy, 2010: Contribution of Alaskan glaciers to sea - level rise derived from satellite imagery.

The melting contributes to about 1 % of the global sea level rise — a small contribution and only 3 — 4 % of the total contribution from global glaciers and ice caps.

The sea level rise from this contribution is subtracted from the total sea level rise to obtain another estimate of steric sea level rise.

There is medium confidence that at least partial deglaciation of the Greenland ice sheet, and possibly the West Antarctic ice sheet, would occur over a period of time ranging from centuries to millennia for a global average temperature increase of 1 - 4 °C (relative to 1990 - 2000), causing a contribution to sea - level rise of 4 - 6 m or more.

The fallout from nuclear waste is one; humans» contribution to global warming through greenhouse - gas emissions from burning fossil fuels, and its impact on rising sea levels, is another.

An important contribution to present day sea level rise could result from changes in the amount of water stored in the ground, on the surface in lakes and reservoirs, and by modifications to surface characteristics affecting runoff or evapotranspiration rates.

Rapid sea - level rise from these processes is limited to those regions where the bed of the ice sheet is well below sea level and thus capable of feeding ice shelves or directly calving icebergs rapidly, but this still represents notable potential contributions to sea - level rise, including the deep fjords in Greenland (roughly 0.5 m; Bindschadler et al., 2013), parts of the East Antarctic ice sheet (perhaps as much as 20 m; Fretwell et al., 2013), and especially parts of the West Antarctic ice sheet (just over 3 m; Bamber et al., 2009).

Land ice loss — especially from northern hemisphere glaciers and the Greenland ice sheet — now exceeds thermal expansion in its contribution to rising sea level.

For example, the melting of the Greenland ice sheet broke previous records in 2002, 2005, and 2007, and seasonal melting from 1996 to 2007 was above average compared with the 1973 - 2007 period.10, 11 The melting of the Greenland ice sheet contributed around 0.02 inch (0.6 millimeter) to global sea - level rise in 2005 — more than double the 1996 contribution.4 From 1993 to 2003 the average rate of sea - level rise increased to about 0.12 inches (3.1 millimeters) per year.12 That means that in 2005 Greenland could have contributed 19 percent of the average annual global sea level rise rfrom 1996 to 2007 was above average compared with the 1973 - 2007 period.10, 11 The melting of the Greenland ice sheet contributed around 0.02 inch (0.6 millimeter) to global sea - level rise in 2005 — more than double the 1996 contribution.4 From 1993 to 2003 the average rate of sea - level rise increased to about 0.12 inches (3.1 millimeters) per year.12 That means that in 2005 Greenland could have contributed 19 percent of the average annual global sea level rise rFrom 1993 to 2003 the average rate of sea - level rise increased to about 0.12 inches (3.1 millimeters) per year.12 That means that in 2005 Greenland could have contributed 19 percent of the average annual global sea level rise rate.

Hay et al. (2015) argue that rates of sea level rise between 1.0 and 1.4 mm yr - 1 close the sea - level budget for 1901 — 1990 as estimated in AR5, without appealing to an underestimation of individual contributions from ocean thermal expansion, glacier melting, or ice sheet mass balance.

The scientists used satellite monitoring to determine the contribution of all land - based ice (except for Greenland and Antarctica's huge ice sheets) to rising sea levels and found that the volume of ice melting into the sea each year from ice caps and glaciers was 100 cubic miles (or 417 cubic km).

Ice mass loss of the marine - terminating glaciers has rapidly accelerated from close to balance in the 2000s to a sustained rate of — 56 ± 8 gigatons per year, constituting a major fraction of Antarctica's contribution to rising sea level.

Although thermal expansion has been projected to contribute the most to sea level rise, the potential of large contributions from the Antarctic Ice Sheet has added significant uncertainty to predictions.

Consequently, ice sheet contribution to sea level rise — even if it were the same amount — would have different impacts, depending on whether the contribution came from Greenland or Antarctica (Bamber and Riva 2010).

If this rate were maintained, the ice sheets would make a measurable but minor contribution to the global sea level rise from other sources, which has been 1 - 2 mm / yr averaged over the past century and 3mm / yr for 1993 - 2003, and is projected to average 1 - 9 mm / yr for the coming century (see IPCC Third Assessment Report).

When we went down the first time, we had some funding from Starbucks for working on climate change, and I said to them, «Look, given the element of both sea level rise and contribution to the hurricane, we're going to use some of these funds to travel there with confidence.»