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Isentropic level climatologies (polar stereographic projections) >

Potential vorticity and vector wind at 850K

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 EPS (1117kb)
 GIF (94kb)
 Annual mean  
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 EPS (639kb)
 GIF (71kb)
 Interannual variability  
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 EPS (1130kb)
 GIF (97kb)
 December-February  
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 EPS (1115kb)
 GIF (93kb)
 March-May  
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 EPS (1125kb)
 GIF (109kb)
 June-August  
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 EPS (1129kb)
 GIF (94kb)
 September-November  
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