Sentences with phrase «ice volume time»

This can cause data estimates to snowball, and it might account for the apparent accellerating decline of the ice volume time series.

With error bars provided, we can use the PIOMAS ice volume time series as a proxy record for reality and compare it against sea - ice simulations in global climate models.

Not exact matches

for example... you can go back in ice core samples as far as 800,000 years, and still locked in the ice is a tiny amount of the atmoshpere from that time, telliing us volumes of information.

And with so many names ahead of him, if he DOES get ice time without major injuries to the current AHL guys, I think that's going to speak volumes about the kid.

But the story in East Antarctica is still murky, they report; although the volume of its ice shelves has fluctuated significantly, they found no clear trend of volume loss during that time period.

Scientists have examined ice cores dating back some 800,000 years and have documented numerous times when increases in summer insolation took place, but not all of them resulted in deglaciation to present - day ice volumes.

However, Pluto's basin is significantly larger than the volume of ice it contains today, suggesting that Pluto's heart has been slowly losing mass over time, almost as if it was wasting away.

At the end of this summer, only a quarter of the Arctic Ocean was still covered in ice, a record low in modern times, and the total volume of ice was just a fifth of what it was three decades ago (see «Record Arctic ice loss»).

«Conversely, there is more and better evidence across Iceland that when the ice sheet underwent major reduction at the end of the last glacial period, there was a large increase in both the frequency and volume of basalt erupted — with some estimates being 30 times higher than the present day.

According to the latest Piomas data, a combination of the smallest sea ice extent and the second - thinnest ice cover on record puts total volume of sea ice in November 2016 at a record low for this time of year.

Kevin, the real reason that sea ice volume will likely not reach zero any time soon is that calving from Greenland and from the Canadian archipelago will continue and will likely increase.

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Meanwhile, in the Arctic, sea ice volume is at a record low for the time of year according to PIOMAS.

PIOMAS has been used in a wide range of applications but arguably the most popular product has been the time series of total Arctic sea ice volume which we have been putting out since March 2010 (see also Fig 1).

With only 30 + year time series of sea ice extent or volume, this is something difficult to do so we have to strive to construct longer time series that allow an assessment of natural variability at those times scales.

Based on their choice of time - shift rather than volume shift to «correct» the models, I'd suspect that an assumption of lingering ice is built into the models.

It should be noted that there is such a mismatch between the ice volume shown in the lower curve in fig. 1 and that shown in fig. 4 that is seems unlikely that they represent the same time period.

It would be interesting to compare the numbers, if any, for volume and time span of an ice sheet failure (are there any for how fast it could happen)?

If the authors had adopted a volume shift rather than a time - shift, the models would predict zero ice volume around 2060.

The thermal inertia of the thousands of meter thick Greenland Ice sheet makes its integrative time constant even longer (> 20x volume, > 1000x thermal path length, nonlinear function due to rate dependencies).

Our Tietsche, et al., 2011 paper basically shows that both extent and volume can recover on similar time scales after extreme loss events, in particular for the thin ice that we have around nowadays.

I looked up your paper (Rammstorf, 1995) and you write «If a freshwater flux of 0.06 Sv were to be obtained only by melting sea ice, the entire sea ice volume (2 — 3 * 10 ^ 13 m ^ 3) would need to melt during a period of 10 to 15 years, a time span too short to cause an advective spin - down of the circulation.»

Its not too short a time, Arctic sea ice volume is like a giant mercury thermometer to all parameters used to measure global warming.

It looks like the variable is constructed by starting with prior period values and adjusing them (this could be for only one element of the ice volume estimation), rather than taking independent measurements each time.

He said weather scientists have known there was a relationship between ice and lightning, but were learning new details by studying the National Aeronautics and Space Administration satellite images which can look at both the number of lightning strikes and the volume of ice in a cloud at the same time.

So that, while the surface area may be greater this year compared with last year, the volume of ice in the Arctic this year is probably already less than at the same time last year.

Ice volume should lag temperature by about 10,000 years, due to the relatively long time period required to grow or shrink ice sheeIce volume should lag temperature by about 10,000 years, due to the relatively long time period required to grow or shrink ice sheeice sheets.

Thus, both CO2 and ice volume should lag temperature somewhat, depending on the characteristic response times of these different components of the climate system.

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 divergence in timing of sea ice loss between models and data — decades as represented by ice volume in Figure 3 — is physically irreconcilable.

As the oceans stay warm for some time to come, I will watch the snow fall and the ice volume build and the oceans drop, getting ready for the next ice advance that will cool earth into the next cold period, that always follows every warm period.

The volume of ice in the Arctic is less than it has been at any time during the history of mankind.

Then in 2003 the launch of two new satellites, ICESat and GRACE, led to vast improvements in one of the methods for mass balance determination, volume change, and introduced the ability to conduct gravimetric measurements of ice sheet mass over time.

Using a large volume of 126 proxy temperature records from the Northern Hemisphere, they found (1) a clearly discernible Medieval Warm Period (MWP)(950-1150) and Little Ice Age (LIA)(1450 - 1850), (2) «likely unprecedented» modern temperatures (relative to the last 1,000 years), as well as a (3) «significant» link between the high temperatures of the MWP and recent times and the high solar activity that characterized both periods (the Medieval Maximum and the Modern Grand Maximum).

Its estimated ice volume and contribution to mean global sea level reside well within their ranges of natural variability, and from the current looks of things, they are not likely to depart from those ranges any time soon.

Nevertheless, these rates concern times with much greater ice volume than today, and with intense global climate fluctuations.

- What percentage of Arctic sea ice loss / ice volume loss is attributable to warm currents entering, apparently for the first time, a decade or so ago into the Arctic?

(d, e) Total area of Arctic sea ice and AMOC volume transport as a function of time in the CTL, LW, and SW experiments.

Further: We calculate Arctic sea ice thickness and volume values from the standard, publically available CryoSat data as well as from near real time (NRT) CryoSat data provided directly to us from the European Space Agency.

«Time periods with less than twice the modern global ice volume show almost no indications of sea level rise faster than about 2 metres per century,» said Dr Grant.

Arctic Sea Ice Volume Model from the University of Washington (Note: this is only updated monthly, and is a model output, not a real - time observation, details here)

Though the Tibetan earthquake was going to happen at some time, it is possible that changes in ice loading on Himalayan glaciers, changes in water volume outflows in the annual Asian monsoon, and sea level rise adding pressure to the geological plates below coastlines — especially in low - lying Bangladesh — had an impact.

This volume is about 500 times the freshwater flux from Alaska's Russell Fjord over a five - month period — but then the reservoir capacity of the east Greenland fjord system at 70 - 77 ° N is also extraordinary and ice dams can span multiple years.

Uncertainties in the timing of ice - margin retreat and global ice - volume change allow a variety of plausible deglaciation triggers.

Lett., 2006, 33, L24703, doi: 10.1029 / 2006GL027817 compares the time derivative of the ice volume dV / dt and the 65 ° N insolation; the match is very good except at the onset of deglaciations.

As water vapour occupies about 1000 times the volume of the water / ice it comes from that has the possibility to create very large forces (witness old time condensing steam engines).

John Imbrie used time - series analysis to statistically compare the timing and cycles in the sea surface temperature and global ice volume records with patterns of the Earth's orbit.

Our simple scaling approximation implicitly assumes that ice sheets are sufficiently responsive to climate change that hysteresis is not a dominant effect; in other words, ice volume on millennial time scales is a function of temperature and does not depend much on whether the Earth is in a warming or cooling phase.

For a very long time scale (ice ages and interglacials) the whole water volume may be in equilibrium with the atmosphere...» Ahlbeck, J. (1999) at http://www.john-daly.com/oceanco2/oceanco2.htm

Published on YouTube Aug 12, 2013: This is a visualization of the Arctic Death Spiral showing the evolution of the volume of sea - ice over time from 1979 to July 2013.