On Friday, 14 October 2016 11:54:23 UTC+1, N_Cook wrote:
On 13/10/2016 01:10, Alastair wrote:
On Wednesday, 12 October 2016 12:41:53 UTC+1, N_Cook wrote:
Has there ever been an observable double minima in the ice area , if
there is sustained elevasted temps and sustained storminess over the Arctic?
All I can find is decadal average plots, for earlier records.
Presumably any second minimum would not be so deep as the initial one,
but what effect would any such double minimum have on ice recovery?

There is a chart here where you can see the minimums, and by placing your cursor on the graph get the values.
http://nsidc.org/arcticseaicenews/ch...sea-ice-graph/

Although the refreeze began quickly thsi year it has now slowed down, and may set a record low for the day of the year in the near future. The "cause" may be this http://ocean.dmi.dk/arctic/plots/mea...meanT_2016.png . The Arctic is failing to cool.


A useful record and visualisation, that nsidc page.
Nothing stands out as more pronounced, extent and lack of gradient, than
the current situation, perhaps 1981 and 1997 and prolonged main minima
in 1994 and another 90s (cant read my own writing)

Interestingly, Graham's chart seems to show the extent bending upwards where as mine shows it continuing in a straight line. It will be interesting to see which is correct, and if my linear prediction of a new record min. on one or more days this autumn does happen.