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ERA-40 Atlas >
Isentropic level climatologies (polar stereographic projections) >

Pressure and isotachs at 850K

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 EPS (646kb)
 GIF (77kb)
 Annual mean  
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 EPS (654kb)
 GIF (82kb)
 Interannual variability  
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 EPS (671kb)
 GIF (88kb)
 December-February  
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 EPS (678kb)
 GIF (84kb)
 March-May  
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 EPS (684kb)
 GIF (96kb)
 June-August  
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 EPS (669kb)
 GIF (86kb)
 September-November  
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