Sentences with phrase «glacier thickness»
"Glacier thickness" refers to the measurement of how thick or deep a glacier is. It tells us how much ice or snow is accumulated vertically, from the surface to the bottom of the glacier. Full definition
This is the case on 9 of 12 glaciers where we have mapped the changes in glacier thickness.
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The mean annual balance of -0.38 m a-1 for the eight glaciers during the 1984 - 1994 period is a mean loss of 3.5 - 5.0 m of glacier thickness during the last 11 years.
Change in glacier thickness between A) 2003 and 2009 and B) 2010 and 2014 in the Southern Antarctic Peninsula.
Figure 3: Annual change in global glacier thickness (left axis, meters of water equivalent, m / yr) and cumulative value (right axis, m), based on surface area - weighted mass balance observations.
In recent years, computer model projections have shown an increasing dominance of surface melt, but a limited amount of glacier thickness data made pinpointing a figure for ice discharge difficult.
The annual balance record of North Cascade glaciers indicates a significant negative balance from 1984 - 1994 on all nine glaciers observed annually during this entire interval, -0.39 m / a for an average loss in mean glacier thickness of 4 - 4.5 m.
North Cascade glaciers annual balance has averaged -0.54 m / a of water equivalent from 1984 - 2006, a cumulative loss of over 12.4 m in glacier thickness or 20 - 40 % of their total volume since 1984 due to negative mass balances.
Scientists have long suspected Greenland's melting may be accelerated by the ocean (SN Online: 7/6/11), but needed data on fjord depth and glacier thickness to prove it.
North Cascade glaciers annual balance has averaged -0.51 m / a of water equivalent from 1984 - 2010 a cumulative loss of over 13.25 m in glacier thickness.
The difference between the accumulation and ablation for a given year describes the annual net mass balance, which corresponds to the change in glacier thickness and volume.