Sentences with phrase «averages of both sea ice area»

Not exact matches

The annual average extent of Arctic sea ice is currently declining at about half a million square kilometres per decade — equivalent to about twice the area of the UK.

The trends revealed by the data were clear: The average albedo in the northern area of the Arctic Ocean, including open water and sea ice, is declining in all summer months (May - August).

The area of summertime sea - ice during 2007 - 2009 was about 40 % less than the average prediction from IPCC AR4 climate models.

The area of summer sea ice remaining during 2007 - 2009 was about 40 % less than the average projection from the 2007 IPCC Fourth Assessment Report.

For example, the area of summer sea - ice melt during 2007 - 2009 was about 40 % greater than the average projection from the 2007 IPCC Fourth Assessment Report.

Sea ice in the Arctic, on which arctic animals hunt, rest, and reproduce, now covers 15 % less area than it did in 1978; it has thinned to an average of 1.8 meters, compared to 3.1 meters in the 1950s.

At an average height of 13,000 feet above sea level, they make up the largest area of ice outside the polar regions, nearly a sixth of the world's total.

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.

The area of sea ice melt during 2007 - 9 was about 40 percent greater than the average prediction from I.P.C.C. AR4 climate models.

As of September 5, sea ice extent remains below average everywhere except for a small area within the Laptev Ssea ice extent remains below average everywhere except for a small area within the Laptev SeaSea.

Arbetter, 4.7, Statistical A statistical model using regional observations of sea ice area and global NCEP air temperature, sea level pressure, and freezing degree day estimates continues the trend of projecting below - average summer sea ice conditions for the Arctic.

The total area of Antarctic sea ice averages about 11 million square kilometers.

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.

The shape of the 30 year average sea ice area is also very interesting.

If you go to Cryosphere Today and click on the map that has the regional ice areas, you will see that for most of the Arctic, it is right on average for sea ice.

As a whole, the planet has been shedding sea ice at an average annual rate of 13,500 square miles (35,000 square kilometers) since 1979, the equivalent of losing an area of sea ice larger than the state of Maryland every year.»

The «Temperature Departure From Average» map below further reveals the areas of concentration for climate engineering orchestrated chemical cool - downs and sea surface chemical ice nucleation (also fueling extreme hail events).

It looks like you could gather all of the 2 + year sea - ice from this year and fit it in the 1985 - 2000 average area corresponding to 6 + year sea - ice.

All of these characteristics (except for the ocean temperature) have been used in SAR and TAR IPCC (Houghton et al. 1996; 2001) reports for model - data inter-comparison: we considered as tolerable the following intervals for the annual means of the following climate characteristics which encompass corresponding empirical estimates: global SAT 13.1 — 14.1 °C (Jones et al. 1999); area of sea ice in the Northern Hemisphere 6 — 14 mil km2 and in the Southern Hemisphere 6 — 18 mil km2 (Cavalieri et al. 2003); total precipitation rate 2.45 — 3.05 mm / day (Legates 1995); maximum Atlantic northward heat transport 0.5 — 1.5 PW (Ganachaud and Wunsch 2003); maximum of North Atlantic meridional overturning stream function 15 — 25 Sv (Talley et al. 2003), volume averaged ocean temperature 3 — 5 °C (Levitus 1982).

The bright white central mass shows the perennial sea ice, which is just the multi-year ice that has survived at least one summer, while the larger light blue area shows the full extent of the winter sea ice including the average annual sea ice during the 2012 months of November, December and January.

The gains in Antarctic sea ice — the sea ice area that DOES MATTER to albedo are 25 %, 30 % and as high as 43 % GREATER than the 1980 - 2010 «average» sea ice for each day of the year.

Science: satellite data showing Arctic sea ice between 1979 and The white area shows a moving average of Arctic sea ice between 2003 and The darker blue surrounding the white area is the moving average for the sea ice between 1979 and Between 1979 and 2005, average Arctic sea ice dropped 20 % — a loss in area about the size of the U.S. state of Texas.

To be consistent with the validating sea ice extent index from NSIDC, if possible, please first compute the average sea ice concentration for the month and then compute the extent as the sum of cell areas > 15 %.

Researchers are still hunting for plausible reasons why the area of Antarctic sea ice for May was an above - average 4.64 million square miles (12.03 million square kilometers), according to the NSIDC, despite the multi-year overall increase in global surface temperatures.

At a time when the sea ice should be growing toward its maximum extent for the year, it's shrinking instead — the area of the Bering Sea covered by ice is now 60 percent below its average from 1981 - 20sea ice should be growing toward its maximum extent for the year, it's shrinking instead — the area of the Bering Sea covered by ice is now 60 percent below its average from 1981 - 20Sea covered by ice is now 60 percent below its average from 1981 - 2010.

Here sea - ice cover was above - average, as was also the case in the western Weddell Sea and in the coastal areas of the eastern Amundsen Ssea - ice cover was above - average, as was also the case in the western Weddell Sea and in the coastal areas of the eastern Amundsen SSea and in the coastal areas of the eastern Amundsen SeaSea.

Some areas of the Arctic region showed monthly averages that were exceeded by more than 6 degrees and were linked to record - low sea ice cover, according to the video.

In September 2017, while large areas of the ice edge were further south than average, the ice edge was actually further north than average in the Bellingshausen Sea, and in two small regions lying roughly due south of South Africa and Australia respectively (Figure 7).

In the Spring of 2016, when the satellite responsible for sea ice measurements degraded and interrupted the data series, the Arctic ice area was down about 11 % (about 1/8.919) million sq. km) below the 1978 - 2008 average for the date.

For the month of April, the most recent month for which we have data, Dr. Rosling writes: «Arctic Sea ice area in April last 5 years were all lower than 1981 - 2010 average!

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.

Record droughts in many areas of the world, the loss of arctic sea ice — what you see is an increasing trend that is superimposed on annual variablity (no bets on what happens next year, but the five - to - ten year average in global temperatures, sea surface temperatures, ocean heat content — those will increase — and ice sheet volumes, tropical glacier volumes, sea ice extent will decrease.

Despite its areas of inaccuracy, near - real - time data are still useful for assessing changes in sea ice coverage, particularly when averaged over an entire month.

Despite temperatures at the beginning of 2017 not being record - breaking the sea ice area remained much lower than average during the first three months of the year, with January showing the lowest negative anomaly on record - 600,000 square kilometres below the 1981 - 2010 average for January.

For an annual - and area - average warming exceeding Embedded Image in Greenland and Embedded Image in the global average, the net surface mass balance of the Greenland ice sheet becomes negative, in which case it is likely that the ice sheet would eventually be eliminated, raising global - average sea level by 7 m.

Statistics Canada — Average area covered by total (all) sea ice during summer from 1968 to 2010 for sea ice regions of Arctic Domain — EnviroStats — See how clear the trends are in all of Canada's arctic regions: down, down, down at something like 7 or 8 percent a decade.