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The life span
of atmospheric anomalies depends on
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whether they
are coupled, and on the type of interaction
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they have,
with the underlying ocean anomalies.
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The dynamical
rule applied to the reanalysis data gives
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results
consistent with previous studies and with the lag-
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correlation
between 850mb RV and SST: Ocean drives the
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atmosphere in
the tropics and the reverse occurs in the
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extratropics.
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The AMIP run
from the NCEP shows fewer long lasting
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anomalies than
observed. This error is associated with
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ignoring the
feedback effect of the atmosphere on the ocean.
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