Sentences with phrase «in ablation zone»

van den Broeke, M. R., C. J. P. P. Smeets, and R. S. W. van de Wal (2011), The seasonal cycle and interannual variability of surface energy balance and melt in the ablation zone of the west Greenland ice sheet, Cryosphere, 5, 377 — 390.

A recent article in Science has an alarming title: «Large and Rapid Melt - Induced Velocity Changes in the Ablation Zone of the Greenland Ice Sheet.»

It explains why, in glaciers that are mostly cold, the ice at high altitude in the accumulation zone is usually warmer than the ice at lower altitude in the ablation zone.

The accumulation area decreased by 24.8 %, while ablation area increased by 17.7 % with nearly 6 % increase in debris - cover surface in ablation zone in 1958 to 2011.

The North Cascade Glacier Climate Project (NCGCP), utilizes the highest density of measurements 240 points / km2 in the accumulation zone and 10 points / km2 in the ablation zone.

«Large and Rapid Melt - Induced Velocity Changes in the Ablation Zone of the Greenland Ice Sheet.»

This positive feedback gives rise to high concentrations of impurities in the ablation zones in particular.

Not exact matches

In effect, this UAV survey across the ablation zone of the ice sheet perfectly bridges the gap between people on the ground studying what's under their feet in just one part of the ice sheet, and the satellite data that shows what's going on across the entire ice sheeIn effect, this UAV survey across the ablation zone of the ice sheet perfectly bridges the gap between people on the ground studying what's under their feet in just one part of the ice sheet, and the satellite data that shows what's going on across the entire ice sheein just one part of the ice sheet, and the satellite data that shows what's going on across the entire ice sheet.

In the paper the authors argue that there is no evidence for a speed up of the ice marginal zone due to enhanced ablation rates, which by some people was explained as if Greenland was not contributing to sea level change any more.

Prolonged thinning of the ablation zone (as shown in Fig. 8) causes an additional warming for these areas, which should be lower in altitude if the topography could evolve during the simula - tion.

In Glacier National Park, North Cascades, Helm Glacier and Place Glacier frequent loss of the entire snowcover by the end of the ablation season has become commonplace (WGMS, 2005 The result is in net ablation throughout the accumulation area causing thinning of the glacier in the accumulation zonIn Glacier National Park, North Cascades, Helm Glacier and Place Glacier frequent loss of the entire snowcover by the end of the ablation season has become commonplace (WGMS, 2005 The result is in net ablation throughout the accumulation area causing thinning of the glacier in the accumulation zonin net ablation throughout the accumulation area causing thinning of the glacier in the accumulation zonin the accumulation zone.

On Columbia, Daniels, Foss, Ice Worm, Lower Curtis, Sholes, and Yawning Glacier thinning is not notably less in the accumulation zone than the ablation zone, indicating disequilibrium (Pelto, 2006).

This is their sensitivity Achilles Heel: relatively little increases in melt can expand the ablation zone appreciably given the low surface slopes and low accumulation rates.

But Phillips and his co-authors are more interested in cryohydrologic warming of the ablation zone.

The surface mass balance observations similarly indicate that the ELA has migrated upwards at a rate of 44 m / a over the 1997 — 2011 period in West Greenland, resulting in a more than doubling of the ablation zone width during this period...»

To date, the amount of black carbon in the region of the GrIS that is losing mass, known as the ablation zone, has not been quantified.

Although some scientists have hypothesized that dust may be darkening the ablation zone in southwest Greenland in particular, nobody has quantified the relative roles of black carbon, dust, and other darkening agents in these regions.

We also need in situ measurements in the GrIS's ablation zone that can distinguish the relative contributions of different impurity types (e.g., black carbon, dust, algae) to albedo reduction as well as models that accurately simulate the GrIS surface energy balance and mass balance.