Sentences with phrase «ice extent»
"Ice extent" refers to the measurement of how much ice covers a particular area, such as a lake, sea, or the polar regions. It is the overall size or coverage of the ice in that specific location. Full definition
The exact date and value of the minimum sea ice extent in 2017 can only be determined in the coming weeks, after a significant increase.
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The minimum sea ice extent in 2010 fits into a long - term pattern of decline, especially in multi-year ice, which persists through the summer melt season and into another winter.
Might we see a rapid loss of ice extent in the near future?
The minimum ice extent in 2012 was about half the average.
The lowest sea ice extent on record occurred in 2007, followed closely by 2011, 2008, 2010, and 2009.
So that's what we can expect: big losses in sea ice area, and perhaps in sea ice extent as well (with a lag).
The decline has been greatest during summer, for which the rate of decrease of ice extent since 1979 has been approximately 12 percent per decade.
The diagrams below show sea ice extent data since 1979.
It appears that initially, the low pressure system slowed the drop in ice extent by promoting ice divergence.
With these earlier data records, the ice concentrations would not be as reliable as the total ice extent, which is why most folks only show the extent.
2017 set a new record for the lowest winter maximum sea ice extent observed.
An area of ocean that extends from the permanent ice zone to the boundary where winter ice extent is at a maximum.
Added to this is the concern that summer sea ice extent reached a minimum in 2007 and has actually been increasing since then.
Daily sea ice extent values were record low throughout the month.
Changing winds could still push ice flows together, reducing ice extent further.
Further, it only took one month of persistent wind conditions to slow the rate of sea ice loss, resulting in an increase in 2009 sea ice extent compared to 2007 and 2008.
That marks the second straight year that the winter maximum ice extent set a record low.
Similar problems can arise with sea ice extent changes.
This is the main reason for our lower than observed sea ice extent prediction.
A cold period in between warm periods is a time with more ice extent.
While ice extent is entertaining, the mass of ice would be more appropriate for energy transfer calculations.
The result is a global sea ice extent near low - record levels.
Why don't you publish a global sea ice extent number?
The sea ice extent measure is broader, including areas of ocean where ice covers 15 % of the surface area.
And scientists can sample ice cores, permafrost records, and tree rings to make some assumptions about the sea ice extent going back 1,500 years.
Even if the total albedo remained the same (highly unlikely) they are allowing heat to be absorbed north of the southern ice extent.
This suggests that the recent decline in sea ice extent represents a significant change in conditions from 1981 to 2010 time period.
However, scientists have used historical records of sea ice conditions to estimate sea ice extent before 1979.
This work concerns only sea ice extent without considerations of the age, thickness, and total volume of sea ice.
(16) The worlds ice extent doesn't really seem to be melting.
Raw model sea ice concentration data was processed using a simple linear regression model and satellite derived ice extent to produce bias corrected predictions.