Sentences with phrase «average thickness of the ice»

• From 1976 to 1999 the average thickness of ice in the Arctic Ocean had dropped 43 percent.

Still more striking, and significant, has been a severe decline in the average thickness of the ice pack, and thus of its volume (graph).

Not exact matches

There also appears to be a strong correlation between the area of multiyear ice and the spatially averaged thickness of the perennial ice pack, which suggests that the satellite - derived areal decreases represent substantial rather than only peripheral changes.

With a volume of more than 700,000 cubic miles and an average thickness of 4,000 feet, the West Antarctic Ice Sheet (WAIS) holds enough water to raise sea levels by 15 to 20 feet — and it is already sweating off 130 billion tons of ice per yeIce Sheet (WAIS) holds enough water to raise sea levels by 15 to 20 feet — and it is already sweating off 130 billion tons of ice per yeice per year.

Ice originating from the Arctic Ocean showed a mean thickness of more than three metres on average.

Rising polar temperatures caused the average thickness of winter Arctic sea ice to decrease from about 12 feet to 6 feet between 1978 and 2008, and thinner ice melts more readily.

With an average thickness of 625 feet, the iceberg will contain 277 cubic miles of ice.

So unless the perimeter of the Greenland ice sheet is the exact same thickness as the entire ice sheet (say 3 km on average), an area loss there, of 15 %, will produce a much smaller % volume loss, than say if this area loss were smack dab in the middle of the Greenland ice sheet.

[Response: The thickness of the greenland ice sheet is ~ 2000 m on average (don't quote me, that's a ballpark estimate).

(And the average age of all ice never got above single digits) Because most of the thickness increases come in the first couple of years, and most old ice is «old» because it is nearing the end of its natural cycle (where it thins to zero.)

The average thickness is usually still falling at this time of year (presumably because thin ice is being added) but it has not yet been calculated for this year.

% due to eruption 9.5 % (assuming the average thickness of melted ice was 1 meter, and not allowing for any of the heat being lost to warming the 4 km thick sea water column, or air, or evaporation)

Ice covered by the insulating material melted 60 percent less than exposed portions which lost an average of 5 feet in thickness during the test.

Having said that, it is a really small effect — if the entire Arctic summer sea ice pack melted (average thickness 2 metres, density ~ 920 kg / m3, area 3 × 10 ^ 6 km ^ 2 (0.8 % total ocean area) = > a 4.5 cm rise instantly which implies a global sea level rise of 0.36 mm.

(Right) Extents and thicknesses of the Greenland Ice Sheet and western Canadian and Iceland glaciers at their minimum extent during the last interglacial, shown as a multi-model average from three ice modeIce Sheet and western Canadian and Iceland glaciers at their minimum extent during the last interglacial, shown as a multi-model average from three ice modeice models.

The scientists have measured average sea ice thickness to less than a meter in the area, and observed a late start of the freeze up period.

Given the minimum ice extent is about 4 million km2 and 4000 km3 (an average of 1 meter thickness) the SMOS data is of limited value.

The melting is most pronounced for small glaciers at altitudes below 17,000 feet, he said, which have lost an average of 4.4 feet of ice thickness per year.

On page 16 here: https://curryja.files.wordpress.com/2014/10/sea-ice-physical-processes.pdf There is the «Annual cycle of net surface heat flux for various ice thicknesses» Roughly interpolating the no sea ice flux I got an average of — 310 Wm2 over the course of a year.

Starting with the April Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS) volume distribution and the April National Snow and Ice Data Center (NSIDC) average ice extent the estimated extent loss for each 10 cm thickness of ice loss is calculatIce Ocean Modeling and Assimilation System (PIOMAS) volume distribution and the April National Snow and Ice Data Center (NSIDC) average ice extent the estimated extent loss for each 10 cm thickness of ice loss is calculatIce Data Center (NSIDC) average ice extent the estimated extent loss for each 10 cm thickness of ice loss is calculatice extent the estimated extent loss for each 10 cm thickness of ice loss is calculatice loss is calculated.

[Gallery: Vanishing Glaciers] «The average thickness of the Arctic sea ice cover is declining because it is rapidly losing its thick component, the multi-year ice.

Rennie (Public), 3.20 (2.50 - 3.80), Heuristic Starting with the April PIOMAS volume distribution and the April NSIDC average ice extent the estimated extent loss for each 10 cm thickness of ice loss is calculated.

The time constants of albedo feedback from melting N America snow cover are shorter than the albedo feedback from melting Arctic sea ice, and the sea ice is changing response as its average thickness decreases, and the ratios of 1, 2, 3, 4, 5 year ice area changes.

The research, reported in Geophysical Research Letters, showed that last winter the average thickness of sea ice over the whole Arctic fell by 26 cm (10 %) compared with the average thickness of the previous five winters, but sea ice in the western Arctic lost around 49 cm of thickness.

This is on top of very significant drops in average ice thickness.

«Since the 1970's, temperatures at the earth's surface have warmed, Arctic sea ice has decreased in thickness, and now we know that the average temperature of the world's oceans has increased during this same time period.»

Last winter the average thickness of sea ice over the whole Arctic fell by 26 cm (10 %) compared with the average thickness of the previous five winters, but sea ice in the western Arctic lost around 49 cm of thickness.