The five lowest summer
sea ice minimums have occurred over the past five years, researchers noted.
Cassano, E. N., Cassano, J. J., Higgins, M. E. & Serreze, M. C. Atmospheric impacts of an Arctic sea
ice minimum as seen in the Community Atmosphere Model.
However, looking at the decrease in sea
ice minimum over the past decade or so, both the 2007 and 2012 minima crashed through the preious lows in a typical overshoot pattern.
Polar bear numbers, as confirmed by the latest estimates in the 2015 IUCN Red List assessment, are higher now than they have been since the 1960s, despite almost 10 years of summer sea
ice minimums below 5.0 mk2.
Schweiger, A.J., J. Zhang, R.W. Lindsay, and M. Steele, «Did unusually sunny skies help drive the record sea
ice minimum of 2007?»
In the Antarctic, where the summer season just wrapped up, rapid ice melt led to the lowest sea
ice minimum ever recorded for the area.
I know many people are touting the PIOMAS data, but the sea
ice minimum area is still more than half what it was 30 years ago.
The antarctic summer
ice minimum extend dropped about 50 % during this period, suggesting warm ocean waters.
That's not a terrible difference, but the space agency is quick to point out that this could hint at a more worrying trend where the Arctic
summertime ice minimum continues to shrink at an alarming rate.
Hence, the 2012 Arctic sea
ice minimum provides a counterexample to the often - quoted idea that individual extreme events can not be attributed to human influence.
Sea
ice minimum levels are falling at the rate of 14 % a decade in the Arctic, and polar bears have been feeling the loss.
Obviously ice minimum would occur some time after the start of cooling (think first derivative of a sine wave).
If it is going to turn we need at least 3 years with
increasing ice minima from 2012, preferably 4 years.
The low sea
ice minima projected for 2008, relative to the long term mean, were mostly a result of the initial conditions.
The Arctic sea
ice minimum marks the day, each year, when the sea ice extent is at its lowest.
In case anyone would like an short animation of annual sea
ice minimum = how much melting took place last year, check out this clip from NASA's Scientific Visualization Studio.
The 2012 Arctic summer sea
ice minimum far surpassed 2007 as the lowest on record.
Via Grist via Tom Raftery More on What You Need To Know About Arctic Ice 2009 Arctic Summer Sea
Ice Minimum Third Lowest on Record - «Well Outside» Natural Variability Arctic Ocean Ice - Free in Summer by 2015, New Research Shows - Greenland Ice Sheet Shows Rapid Losses, Too Melting Ice Could Lead to Massive Waves of Climate Refugees How Will Global Warming Change Our Oceans?
Atmospheric impacts of an Arctic sea
ice minimum as seen in the Community Atmosphere Model.
Phrases with «ice minimum»