SEA LEVEL AIR PRESSURE
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-ED_~ _____ _
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- - - - -----~-------, , , , , , , , , , , ,
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120W
0.0
, , , ,
1 5
, ,
, ,
90W
3.0
4.5
6 0 7.5
------------------~-9 . 0
10.5
, ,
12 . 0
o
13.5 15.0 16 .5
,
,
,
18.0
Standard deviation of sea level alr pressure
Octobe r
199
.'
:~
19.5 21.0
[hPa]