Sentences with phrase «more ice mass balance»

Not exact matches

Overall, I estimate the mass balance of the Greenland ice sheet to be about -80 + / -10 cubic km of ice per year in 2000 and -110 + / -15 cubic km of ice per year in 2004, i.e. more negative than based on partial altimetry surveys of the outlet glaciers.

The surface mass balance (SMB) results show a very favourable correlation (r ^ 2 > 0.90) with more than 500 SMB observations all over the ice sheet, from firn cores, snow pits, etc..

The impacts of ice shelf collapse and ensuing glacier acceleration are substantial, but in general, the effects of ocean melt are proving to be far more important in controlling ice sheet mass balance.

Because Antarctica drains more than 80 percent of its ice sheet through floating ice shelves, accelerated glacier flow has the potential to affect ice sheet mass balance dramatically and raise sea level (Pritchard et al. 2012).

Here, considerable value can be derived from ship - based observations, aerial overflights, and drifting (mass - balance) buoys that provide a more accurate picture of the distribution of different ice types.

Secondary objectives: Four secondary objectives have been defined: - To assess the effect of a more accurate simulation of sea ice drift and deformation on the Arctic sea ice mass balance and distribution properties of sea ice age.

And more recent estimates of the Antarctic mass balance contribution to sea level rise has the East Antarctica ice sheet gaining mass at a more accelerated pace for 2003 - 2013 than the mere +14 Gt per year identified by Shepherd et al. (2012) for 1992 - 2011.

Current models suggest ice mass losses increase with temperature more rapidly than gains due to increased precipitation and that the surface mass balance becomes negative (net ice loss) at a global average warming (relative to pre-industrial values) in excess of 1.9 to 4.6 °C.

The two big ice shelves still lose mass predominantly through calving, Thwaites shelf is balanced between the two, PIG is more basal melt.