Arctic
ice update
With
many thanks to Nicholas Humphrey, via Facebook
Sea
Ice continues to be garbage as warm air and ocean currents continue
to pump heat into the Arctic...something which has been scary
consistent since November for all of us tracking it.
The Northern
Hemisphere's freezer seems to be really failing badly at the moment.
Arctic sea ice volume and extent remain at or near record lows with
the freezing air line (32 F/0 C) extending into the Arctic from the
Atlantic and even through the Bering Strait.
The consistent Arctic
heat will continue through this week. All while still very cold
continental Arctic air at the surface continues to be squeezed and
sent on cross polar flows between Siberia and the North America.
Single digit highs F (-15 to -13 C) for me in Eastern Nebraska
Monday-Tuesday...it was in the mid-50s (12-13 C) the first half of
last week lol.
I
took a look at climate model forecasts for El Nino in 2018. La Nina
should begin to fade away beginning in the next few months.
Probabilities for El Nino to possibly make an appearance are
increasing for later next fall.
Regardless, the diminishing of La
Nina...a feature of Earth's normal cyclic climate pattern, typically
cools the planet to some degree.
There was a very minor cooling from
2016, but the fact that it was so minor shows how much climate change
is taking over, relative to "natural" climate cycles.
It
was basically a "little 2016" year. Meaningless by
standards of impacts on environment and extremes. 2018 will be warmer
as the cold pool in the Pacific dissipates and water warm and we're
already seeing abnormally warm waters (increasingly so as years pass)
in other parts of the Pacific, widespread in the Atlantic, margins of
the Arctic Ocean and the waters near Australia and New Zealand.
If El
Nino begins to develop this Fall (distant possibility, not certain
this far out), then obviously this would release much more heat back
to the atmosphere.
If the 2010s have any sort of say, climate change
is accelerating with increasing global severity of droughts, extreme
storms, wildfires and tree deaths, Arctic methane concentration,
Arctic amplification, and the collapsing sea ice sheet (the Antarctic
sea ice sheet is beginning to see more significant reductions as
well...after initial increases earlier in the decade).
Observations
and shorter-term conditions and events (annual and shorter) seem to
be becoming increasingly important for approaching tipping points in
the climate system as well as human society's ability to cope. I'd
say 2018, sea ice melt and El Nino Southern Oscillation will be
potentially significant events to watch as far as the
atmosphere-ocean system and cryosphere.
Lower atmospheric air flow patterns near Greenland, Northern Europe and Svalbard.
Lower atmospheric air flow pattern over the northern Bering Sea into Alaska and the Chukchi Sea.
Sea Surface temperature anomalies. The model used by Earth Null school suggests anomalies as high as +10 C near Svalbard, but not sure how accurate that is. At least +3 C however.
Sea surface temperature anomalies in the Bering Sea and Bering Strait. +2.5 C and higher.
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