Sentences with phrase «average sea ice thickness»

The average sea ice thickness in 2012 was just 1.25 meters, down from 3.59 meters in 1975, studies show.

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.

Why do you think the average sea ice thickness in the Arctic never got far above 3m in the twentieth century?

Not exact matches

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.

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.

% 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)

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.

Aspin et al., 4.0, Heuristic Sea ice extent is greater on 05 June 2013 than a year ago, however ice thicknesses and volumes are, on average, the lowest on record.

However, our monthly sea ice volumes calculated from NRT and standard data agree to within 0.5 % on average, which shows that the NRT data allow us provide users with a reliable operational thickness and volume product.

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.

[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.

9000000 km ^ 2 Arctic sea ice melt spring — summer 1.8 e +13 m ^ 3 at a 2m average thickness — this is generous — see http://psc.apl.washington.edu/ArcticSeaiceVolume/IceVolume.php 917 kg / m ^ 3 for ice 1.6506 e +16 kg / year 5.513004 e +21 joules 0.143 percent going into ice melt spring — summer; BUT, a roughly equal amount comes back out during the refreeze in the fall — winter; and since it's floating, it doesn't effect sea level.

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.

«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.