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SUMMARY:How much should we believe correlations between Arctic cyclones an
 d sea ice extent? - Jamie Rae (Met Office)
DTSTART:20170915T111000Z
DTEND:20170915T113000Z
UID:TALK79441@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:I will present an analysis of Arctic summer cyclones in a clim
 ate model and in a reanalysis dataset\, including results from a cyclone i
 dentification and tracking algorithm\, and correlations between characteri
 stics of the cyclones and September Arctic sea ice extent.&nbsp\; Results 
 will be presented for output from model simulations at two resolutions\, a
 nd for the reanalysis\, using two different tracking variables (mean sea-l
 evel pressure and 850 hPa vorticity) for identification of the cyclones.&n
 bsp\; I will explore the influence of the tracking variable\, the spatial 
 resolution of the model\, and spatial and temporal sampling\, on the corre
 lations.&nbsp\; I will conclude that the correlations obtained depend on a
 ll of these factors\, and that care should be taken when interpreting the 
 results of such analyses\, especially when the focus is on one reanalysis\
 , or output from one model\, analysed with a single tracking variable for 
 a short time period.
LOCATION:Seminar Room 1\, Newton Institute
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