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10/25/17
Arctic Amplification of Atmospheric CO2 increases
Filed under: Recent Posts, Position Searching, Mature professionals, Observ. Trends, Alternate Career Paths
Posted by: site admin @ 7:59 am

Did not know which title intro fits better:  ‘Watch-Outs’ or
‘Technical Trends worth noting’ as I start this entry.

Last evening a local library sponsored a stimulating
discussion on weather changes influenced by arctic sea-ice
and land-ice changes by Jennifer A. Francis.
Her presentation offers a clear-minded assessment of 
observations of Arctic sea-ice and land-ice losses.  They
impact winds in at least three ways and ocean
levels in as many ways through combining impacts.
A great link to her research results is a panel discussion:odrow Wilson Center: Arctic Environmental Futures: Nexus of Science, Policy, and Operations, 29 September 2017

https://www.wilsoncenter.org/event/arctic-environmental-futures-nexus-science-policy-and-operations

 [you never know how these links display!]
where she is the third speaker.
.
She describes three effects of the loss of the Arctic sea-ice cap
(Arctic Amplification):
 - weaker steering winds
 - wavier jet stream
 - stagnant formations of wind flow (resulting from jet
stream splitting)
.
On top of sea ice recession, land-ice loss due to thermal
effects due to less reflection of solar radiation (Less ice,
polar cap is darker and more absorbent) raises sea levels
and enhances storm water surges in coastal regions.
.
Her talk last night ended with forecasts for future
scenarios that point to the need for important changes
in global behaviors, changing populations settling and
migration patterns and serious infrastructure redesigns.
[Several of these are pointed out in the Wilson Center 
video link.]
.
A recent article provides a less technical view.

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