Sentences with phrase «ice loss over time»

This new research into GOCE's gravity data revealing ice loss over time is being carried out through ESA's Earth Observation Support to Science Element.

Not exact matches

As glaciologist Richard Alley of Pennsylvania State University notes: «The ice sheet is losing mass, this loss has increased over time, [and] it is not the dominant term in sea - level rise — but it matters.»

The result is a net loss of ice over time (Hall and Fagre 2003; Pederson et al. 2004).

They could then plug that information into models to see how much ice Greenland lost over the 20th century, as well as how that loss varied over time and at different points around the ice sheet.

Over all, the loss of the West Antarctic ice from warming is appearing «more likely a definite thing to worry about on a thousand - year time scale but not a hundred years,» Dr. Pollard said.

Over the time period of our survey, the ice sheet as a whole was certainly losing mass, and the mass loss increased by 75 % in 10 years.

In recent decades, much research on these topics has raised the questions of «tipping points» and «system flips,» where feedbacks in the system compound to rapidly cause massive reorganization of global climate over very short periods of time — a truncation or reorganization of the thermohaline circulation or of food web structures, for instance, caused by the loss of sea ice or warming ocean temperatures.

As sea ice declines, it becomes thinner, with less ice build - up over multiple years, and therefore more vulnerable to further melting.15 Models that best match historical trends project northern waters that are virtually ice - free by late summer by the 2030s.25, 26,12 Within the general downward trend in sea ice, there will be time periods with both rapid ice loss and temporary recovery, 27 making it challenging to predict short - term changes in ice conditions.

The effect any previous year of sea ice reflectivity or heat loss or heat gain has been lost over the previous winter, and each year's energy budget must stand alone: That sea ice was near recent all - time highs in March and April 2012 indicates that an all - time sea ice low in September can't be attributed to any particular sea ice measurement in 2011, 2010, or 1979.

We showed that a detailed analysis of the GRACE time series over the time period 2002 — 2009 unambiguously reveals an increase in mass loss from both ice sheets.

TV News Covered Paul Ryan's Workout Over Three Times More Than Arctic Sea Ice Loss.

However, detecting acceleration is difficult because of (i) interannual variability in GMSL largely driven by changes in terrestrial water storage (TWS)(7 ⇓ — 9), (ii) decadal variability in TWS (10), thermosteric sea level, and ice sheet mass loss (11) that might masquerade as a long - term acceleration over a 25 - y record, (iii) episodic variability driven by large volcanic eruptions (12), and (iv) errors in the altimeter data, in particular, potential drifts in the instruments over time (13).

Re ice loss — for sea ice loss, you'd have to take a time integral over the year of the latent heat of melting * ice mass anomaly to find an annual average heat (enthalpy in this case) anomaly.

A revision that showed the Arctic cooling over that time period would at least want for some mechanism to explain the inarguable loss of ice.