Sentences with phrase «sea ice volume since»

Until then, we have some new observational data of Canadian sea ice thickness and this remarkable figure of sea ice volume since 1979 from Neven's Arctic Sea Ice Blog, based on data from the University of Washington's Polar Science Center [click to enlarge]:

The Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS) project provides estimates of sea ice volume since 1979, shown in the figure below.

Scientific observations show that in the Arctic, warming temperatures have led to a 75 % loss in sea ice volume since the 1980s, and recent reports suggest the Arctic Ocean will be nearly free of summer sea ice by 2050, said Sullivan.

Not exact matches

Since the density of pure water ice is ca. 920 kg / m3, and that of sea water ca. 1025 kg / m3, typically, around 90 % of the volume of an iceberg is under water, and that portion's shape can be difficult to surmise from looking at what is visible above the surface.

PIOMAS has been used in a wide range of applications but arguably the most popular product has been the time series of total Arctic sea ice volume which we have been putting out since March 2010 (see also Fig 1).

Since the volume of ice at risk under BAU is within a factor of two of the volume of ice at risk during a deglaciation under orbital forcing, while the forcing is much more rapidly applied under BAU, looking at sea level rise rates in the paleo - record might actually be considered a search for lower limits on what to expect if reticence did not run so strongly in our approach.

Volume, in contrast, is crucial in determining the vulnerability of Arctic sea ice to rapid future reductions (since thin ice is much more prone to react strongly to a single warm summer, making single very - low sea - ice summers more likely), and the thickness of the ice determines the exchange of heat between ocean and atmosphere.

I sent some questions to some of the authors of the new study showing how much the thickness and total volume of Arctic sea ice have declined since 2003.

The main issue is that sea ice is fresher than sea water (has less salt), and since salty water is more dense (1028 kg / m3) than fresher water (1004 kg / m3 for 5 psu), the volume of sea water displaced by the ice is slightly less than the volume of the ice if it melted.

There has been no change in the volume of Arctic Sea Ice since 1980

Poitou & Bréon do not explain why the ice pack volume would be relevant for the albedo; according to Haas (2005)[47] the changes of the thickness of the sea ice are small since they are correctly measured by an airborne radio apparatus, only over the Arctic.

Published on YouTube Nov 21, 2013: This is an animated visualization of the startling decline of Arctic Sea Ice, showing the minimum volume reached every September since 1979, set on a map of New York with a 10 km grid to give an idea of scale.

Since 1979, the volume of Summer Arctic sea ice has declined by more than 80 % and accelerating faster than scientists believed it would, or even could melt.

-LSB-...] Published on YouTube Nov 21, 2013 This is an animated visualization of the startling decline of Arctic Sea Ice, showing the minimum volume reached every September since 1979, set on a map of New -LSB-...]

And since we have had rising sea level over last couple centuries, and this generally indicates warming global ocean volume, I expect this trend to continue for the next century [most likely] and due to warming oceans continuation of tread of less polar sea ice.

Could the temporal projection mistake of 30 years be explained by sea ice models creating more extent or volume since they perhaps erroneously start creating sea ice when surface air temperatures reach -2 C instead of -11 C?

Since full melt of all grounded ice is equal to over 70 metres of sea level rise, then it follows that there is the equivalent volume of 70 metres of ocean surface that is currently existing as ice at less than zero C.