The initial response is an increase in
glacier melt rate enhancing glacier runoff, while the glacier extent is still substantial in comparison to previous size.
Since the latest data from around the globe seems to indicate that the Klimakatastrophe is progressing even more rapidly than the worst - case scenario of the IPCC (e.g. increasing
glacier melting rate, decreasing oceans» ability to absorb CO2), I tend to believe Lovelock's predictions are spot on.
Indeed, working with predictions for future temperature increases and
glacier melt rates generated by ten separate global climate models — all of which are also used by the Intergovernmental Panel of Climate Change - the team have concluded that these smaller ice sources will contribute around 12 centimetres to world sea - level increases over the remainder of the century, with this likely to have catastrophic consequences for numerous natural habitats as well as for hundreds of thousands of people.
Not exact matches
Because these black particles absorb more heat than white snow, the study of black carbon concentrations in
glaciers is important for predicting future
melt rates.
There are ways to monitor when the dam of a glacial lake might break: Scientists track the lake's depth, the geological composition and geometry of its dam, and other factors, such as
melting rate and steepness of adjacent
glaciers.
More than 80 % of the ice on Africa's highest peak has
melted since the early 20th century, joining other
glaciers that are ebbing from the world's tropical mountains at an accelerating
rate.
As you know, recent reports have suggested that buried volcanoes explain unusual
rates of
melting underneath some Antarctic
glaciers.
Glacial collapse is unprecedented in western Tibet, which for decades has resisted the effects of climate change while
glaciers in southern and eastern Tibet have
melted at an accelerating
rate.
Dr Jourdain said it may help explain why the
melt rate of some of the
glaciers in that region are accelerating more than scientists expected.
So when wind pulls warm water up from down deep, the temperature difference experienced at the interface of the water and ice can effectively submerse the
glacier in a hot bath, with some areas experiencing more than a 10-fold increase in
melt rate.
The new study offers hope that scientists could monitor the
melting rates of tidewater
glaciers simply by measuring underwater noise in the fjords.
If so, a reduction in cold brine would mean the
glacier's winter
melt rate would increase.
A new NASA - led study has discovered an intriguing link between sea ice conditions and the
melting rate of Totten
Glacier, the
glacier in East Antarctica that discharges the most ice into the ocean.
A new study by scientists at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, and the University of California, Irvine, shows that while ice sheets and
glaciers continue to
melt, changes in weather and climate over the past decade have caused Earth's continents to soak up and store an extra 3.2 trillion tons of water in soils, lakes and underground aquifers, temporarily slowing the
rate of sea level rise by about 20 percent.
For a pair of recent studies, UCI and NASA JPL scientists examined three neighboring
glaciers in West Antarctica that are
melting and retreating at different
rates.
The studies examined three neighboring
glaciers that are
melting and retreating at different
rates.
Two new studies by researchers at the University of California, Irvine and NASA have found the fastest ongoing
rates of
glacier retreat ever observed in West Antarctica and offer an unprecedented look at ice
melting on the floating undersides of
glaciers.
Pollution on the Himalayan
glaciers, for instance, is raising concerns that it will speed
melt rates and harm water supplies.
Using satellites, the researchers determined that «bottom
melt rates experienced by large outlet
glaciers near their grounding lines are far higher than generally assumed.»
Add to your check list of reality the fact that Himalayan
glaciers are
melting at an alarming
rate (see RC threads on tropical
glacier melt); enough so that flash flooding, from overflowing
glacier -
melt lakes, is a serious and life - threatening concern of downstream populations.
Although scientists have known for decades that Qori Kalis and the other Quelccaya
glaciers are
melting, new observations indicate that the
rate of retreat is increasing, Professor Thompson said.
The climate and
melting rate of the Asian
glaciers has been the source of some contention, the Guardian pointed out, because the Intergovernmental Panel on Climate Change incorrectly reported earlier that all the
glaciers would be gone by 2035.
Dan Kellog, an engineer (not climate scientist) on another blog, has raised the issue of once a
glacier has
melted away, the local temps could rise dramatically (and perhaps, averaged altogether around the world as
glaciers melt away, increase the
rate of global warming).
I'd say a warming trend showing - up in one set of data no later than 1850 (significant enough to cause measurably increase
rates of
glacier melt) vs a warming trend not showing - up in another set of data until later than 1900 is a conflict that is well beyond a «bit silly.»
Either the
glaciers would have to flow into the ocean at unrealistic
rates, or rapid
melting would have to be triggered over a much larger area of the ice sheet than current evidence suggests.
Student project of Mainz University installs wind - catching screen at the Swiss Rhône
glacier to test its effect on its
melting rate
The European Alps have been growing since the end of the last little Ice Age in 1850 when
glaciers began shrinking as temperatures warmed, but the
rate of uplift has accelerated in recent decades because global warming has sped up the
rate of
glacier melt, the researchers say.
Acceleration of
melting of ice - sheets,
glaciers and ice - caps: A wide array of satellite and ice measurements now demonstrate beyond doubt that both the Greenland and Antarctic ice - sheets are losing mass at an increasing
rate.
The Columbia
Glacier in Prince William Sound, the world's fastest -
melting glacier, slides into the ocean at a
rate of 80 feet per day.
I'd say a warming trend showing - up in one set of data no later than 1850 (significant enough to cause measurably increase
rates of
glacier melt) vs a warming trend not showing - up in another set of data until later than 1900 is a conflict that is well beyond a «bit silly.»
Dan Kellog, an engineer (not climate scientist) on another blog, has raised the issue of once a
glacier has
melted away, the local temps could rise dramatically (and perhaps, averaged altogether around the world as
glaciers melt away, increase the
rate of global warming).
In the current issue of Rolling Stone, Jeff Goodell has a great report on why Jason Box's radical approach to climate science is changing our understanding of the unprecedented
rate of
glacier melt in Greenland.
There is of course a lot of uncertainty about the details, that affect the
melt rates, we just don't know how quickly warmer seawater will undercut floating
glaciers, and buildup of darker older snow / ice layers will increase the amount of absorbed sun light.
Guardian and WAPO are reporting the study ways coastal
glaciers are
melting from below at faster
rate than had been predicted.
If climate changes increase the snow deposition
rate on the plateau there, the
rate of sea level rise from
melting glaciers elsewhere would be reduced.
These wildfires release soot into the atmosphere, which accelerates the
rate of
melting of
glaciers, snow and ice it lands upon, which can lead to less reflectivity, meaning more of the sun's heat is absorbed, leading to more global warming, which leads to even more wildfires, not to mention greater sea level rise, which is already threatening coastal areas around the world.
Glaciers and Arctic ice are
melting at an accelerating
rate.
In the real world, effects of AGW are so localized that the top and bottom of the same
glacier melt at different
rates.
Glaciers and ice caps in Arctic Canada are continuing to lose mass at a
rate that has been increasing since 1987, reflecting a trend towards warmer summer air temperatures and longer
melt seasons.
In hopes of slowing the
rate at which ice is
melting in the mountains of northern Italy, officials have begun covering one their most threatened
glaciers with insulating fabric, creating what is essentially a giant security blanket
In hopes of slowing the
rate at which ice is
melting in the mountains of northern Italy, officials have begun covering one their most threatened
glaciers with insulating fabric, creating what is essentially a giant security blanket to help keep the ice from
melting in the summer heat.
Given that these
melting rates are a response to current climate forcings, it seems fairly obvious that the
glaciers will all
melt, even if CO2 levels are stabilized at today's levels.
If continental ice
melting (Greenland, Antarctic, terrestrial
glaciers) is accelerating and if warming of the 0 - 700 m (and deeper) oceanic layer is still on, you shoud observe a higher
rate of sea - level rise.
The
melt of the Greenland
glaciers is accelerating at an incredible
rate and it can't be long before the Arctic sea ice disappears altering global albedo irrevocably.
BRUSSELS — Faulty communication allowed an unsubstantiated estimate ofthe
melting rate of Himalayan
glaciers to make it into the landmark 2007 report by the Intergovernmental Panel on Climate Change, a senior scientist and panel official said Monday.
Outside of Greenland and Antarctica,
glaciers are indeed
melting almost everywhere, at an extremely rapid
rate.
Glaciers have continued to
melt at accelerating
rates, arctic summer ice is declining at accelerating
rates, more 6 - 10 thousand year old ice shelves are collapsing.
However, as Timothy explained in # 121, in addition to the direct sea level rise that occurs when ice shelves
melt, there is a much larger secondary effect, in that ice shelves act as a brake, greatly reducing the
rate of flow of the
glaciers behind them from the land to the sea; and when ice shelves
melt, the
rate of
glacier flow increases quite rapidly.
So about an average speed of 27 km / yr is needed from now until 2100 for all GIS outlet
glaciers, in combination with a 10x higher surface
melt rate, to get a GIS - contribution to global SLR of 2 meters this century.
A survey has revealed that the
rate of
melting across the world has sharply accelerated in recent years, placing even previously stable
glaciers in jeopardy.