how sea ice loss in the Arctic can result in large-scale Pacific
ocean heating event called the
in mass loss of sea life during the period of 2013-2014. It was
associated with a towering high pressure ridge in which the upper
level winds ran far to the north and into the Arctic. Beneath the
ridge, temperatures both at the land and ocean surface grew to be
much warmer than normal.
Second, the study models indicated that warming occurred first and
strongest in the North Pacific, but then rapidly translated toward
surface temperatures across the North Pacific were much warmer than
the hot Blob event of 2013-2014.
A new model study finds that sea ice loss will make such extreme
reason for this change in planetary and Pacific Ocean energy balance
is scientifically described
as a teleconnection.
In very basic terms, loss of sea ice at the Arctic Ocean surface
produces changes in local wind patterns that ripple through the
global atmosphere. After a rather short period of time, wind patterns
in the upper levels of the atmosphere and at the surface in the
Pacific Ocean become involved.
are often the vehicle by which energy is transferred throughout the
atmosphere and at the surface. So a change in winds, from the top of
the atmosphere to the bottom, can swiftly translate
to a change in surface temperatures.
new model study shows
radical changes in Pacific sea surface temperatures in response to
Arctic Ocean sea ice loss.)
it appears more likely now that the Northern Pacific Hot Blob of
2013-2014 was not a fluke, but instead an early knock-on effect of
Arctic sea ice loss. A kind of event that will tend to become
commonplace as the Arctic Ocean ice continues to melt. And that
eventually, sooner rather than later, the heat build-up in the North
Pacific will translate south to the Equator. First warming the
Eastern Pacific in a more persistent El Nino type pattern and then
spreading west (see image above).
with the Blob, everything from the health of sea life to the
intensity of extreme weatherwould
be substantially impacted by such large scale changes. In other
words, it looks like large scale losses of Arctic sea ice are enough
to affect a broad and disruptive change in the global climate regime.