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CATEGORIES:Isaac Newton Institute Seminar Series
SUMMARY:Waves\, ice and ocean in the future projections of
the Arctic and Southern oceans - Yevgeny Aksenov
(National Oceanography Centre\, Southampton)
DTSTART;TZID=Europe/London:20170915T111000
DTEND;TZID=Europe/London:20170915T113000
UID:TALK79411AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/79411
DESCRIPTION:Co-authors: Lucia Hosekova (University of R
eading\, UK)\, Stefanie Rynders (National Oceanog
raphy Centre\, UK)\, Danny Feltham (University of
Reading\, UK)\, Gurvan Madec (Institut Pierre Si
mon Laplace (IPSL)\, France)\, George Nurser (Nat
ional Oceanography Centre\, UK)\, Tim Williams (N
ansen Environmental and Remote Sensing Center (NER
SC)\, Norway)\, Andrew Coward (National Oceanogra
phy Centre\, UK)
We pr
esent a new development to couple a Sea Ice-Ocean
General Circulation Model (OGCM) with ocean waves
and analyse the impact of the waves on sea ice and
upper ocean. The motivation for the study stems f
rom the recent changes in the Arctic sea ice: not
only sea ice extent has been significantly lower i
n the recent decade than the climatology in summer
and winter\, but also it is much more broken and
mobile\, allowing the ocean surface waves propagat
e in the central Arctic. This mobile sea ice moder
ates momentum transfer from the atmosphere to the
ocean and affects the heat storage in the mixed la
yer and halocline. We present the simulations with
the newly implemented sea ice rheology\, combined
with floe size distribution analysis and discuss
the implications of the observed wave increase and
sea ice fragmentation for the present and future
of the Polar Oceans. The study was a part of the E
U FP7 Project &lsquo\;Ships and waves reaching Pol
ar Regions (SWARP)&rsquo\; and is linked to severa
l ongoing UK national research initiatives. \;
LOCATION:Seminar Room 1\, Newton Institute
CONTACT:INI IT
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