Similar sea ice trends and weather conditions were present during the spring seasons preceding past ice shelf retreats (e.g., 2001 to 2002).
Not exact matches
The
trend in declining Arctic
Sea Ice (NSIDC) is
similar to the
trend for earlier Midwest Spring Snowmelt Runoff (mnforsustain.org).
Another NASA
sea -
ice data set, processed using the other standard algorithm, shows a growth
trend similar to that in Comiso's current data.
Unless these nine models share common systematic biases, it is thus expected that the average 2014 September Arctic
sea ice extent will be in the range 3.95 - 5.6 million km ², and likely above the
trend line (5.1 million km ²), a situation
similar to 2013.
The modeled evolution of Arctic
sea ice volume appears to be much stronger correlated with changes in
ice thickness than with
ice extent as it shows a
similar negative
trend beginning around the mid-1990s.
Also, a recent analysis of Antarctic
sea ice trends for 1978 — 1996 by Watkins and Simmonds [2000] found significant increases in both Antarctic
sea ice extent and
ice area,
similar to the results in this paper.
There have been
similar experiments with
sea ice changes (by Clara Deser for instance), and while there is a negative NAO response, this too is a very small signal, and far too small to be detectable in the 5 years or so in which we have had these exceptionally low summer
sea ice minimum, and on top of which have to compete with the CO2 - driven
trend towards slightly more positive NAO phase.