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hori-etal-jaxa-2009-summary-report

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					               Cloudiness anomaly in June-July (2-month average)
                                                                                                    In June and July it seemed that a SLP pattern
                                                                                                    similar to 2007 was appearing over the Arctic
               Abnormal high pressure                      It was mostly cloudy over Bearing         Ocean. It was cloudy over Bearing Strait and
             appeared over Beaufort Sea                        Strait and East Siberian Sea.         East Siberian Sea (and maybe over Barrow).



2007                                             2008                                          2009




                                                 clear              ⇔           cloudy                                  EORC/JAXA
                                           ‐40    ‐30 ‐20 ‐10        0     10    20    30      40
                                                 Cloudiness anomaly %]
                                                   Anomaly from 10‐year average (2000‐2009)
MODIS
                                                                                                                                         1
Contour with solid and broken lines are Sea Level Pressure from NCEP/NCAR reanalysis data
  Cloudiness anomaly in August (1-month average)
                                                                                                    Atmospheric pressure pattern had drastically
    The abnormal high pressure pattern persisted              Sunny weather appeared over            changed in August. Low pressure persisted
    in August. After sea ice concentration began           Bearing Strait and East Siberian Sea.      over the Arctic Ocean and it was mostly
     to reduce in the Arctic Ocean, sea ice could           Wind speed seem to be calm over              cloudy there. Wind pattern seems
     be forced to move by strong southerly wind.             the Arctic Ocean in this season.              unfavorable for ice reduction.


2007                                             2008                                              2009




                                                 clear               ⇔            cloudy                              EORC/JAXA
                                           ‐40      ‐30 ‐20 ‐10       0     10    20     30    40
                                                 Cloudiness anomaly %]
                                                    Anomaly from 10‐year average (2000‐2009)
MODIS
                                                                                                                                       2
Contour with solid and broken lines are Sea Level Pressure from NCEP/NCAR reanalysis data

				
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posted:10/27/2011
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