thanks to peta- apps team, lead by jim kinter, grand ...thanks to peta- apps team, lead by jim...
TRANSCRIPT
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Sea Ice in High Resolution SimulationsCecilia Bitz, Univ of Washington
Thanks to Peta-Apps team, lead by Jim Kinter,Grand Challenge team, lead by Dave Bader,
and Dave Bailey
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CCSM3.5 (ish)
0.1 resolution ocean and sea ice0.5 resolution atmos and land
~150 year run on Kraken
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JFMIce Concentration
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JASIce Concentration
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AMJ
Thi
ckne
ssHIRES CCSM3.5 1 Deg CCSM4
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JFM
Ice
Con
cent
ratio
nHIRES CCSM3.5 LOWRES CCSM3.5
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QuickTime™ and aH.264 decompressor
are needed to see this picture.
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Average Growth Rate of Sea Ice (cm/day) �
(not net growth = growth - melt, it is just plain growth)
HIRES CCSM3.5
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Average Growth Rate of Sea Ice (cm/day) �
1 deg CCSM3HIRES CCSM3.5
~25% frazil ice production Almost no frazil ice production
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Average Mixed Layer Depth (m) �
1 deg CCSM3HIRES CCSM3.5
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Correlation of Ice Growth and Mixed Layer Depth �
1 deg CCSM3HIRES CCSM3.5
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Correlation of Ice Growth and Mixed Layer Depth �
Low-Pass Filtered
High Pass Filtered
HIRES CCSM3.5 1 deg CCSM3
Idea from Frank Bryan
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Summary
The Arctic could use some more ice
Small-scale interactions between ice growth and mixing are positively correlated
(growth forcing mixing)
In contrast away from the coast the gyre-scaleinteractions are negatively correlated
(mixing inhibits growth)
Analyzing these runs is more time consumingthan I ever imagined