February 28, 2007
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Published July 1988 through June 1999
FROM VOLUME 12, NUMBER 4, APRIL 1999
Oceanic Forcing of the Wintertime North Atlantic Oscillation and
European Climate,M. J. Rodwell, D. P. Rodwell, and C. K. Folland,Nature
398, 320-323 (1999).
An atmospheric GCM used to study the oceans influence on the
climate of the North Atlantic and Europe indicated that much of the
multiannual and multidecadal winter-climate variability can be backcasted
from North Atlantic sea-surface temperature. Seemingly, the oceans
surface influences the atmosphere by evaporation, precipitation, and
heating, in turn producing changes in atmospheric temperature,
precipitation, and convective turbulence over Europe. If true, this
correlation could allow European winter-climate prediction several years
Holocene Periodicity in North Atlantic Climate and Deep-Ocean Flow
South of Iceland, G. G. Bianchi and I. N. McCave,Nature 397,
Sediment grain-size data from the Iceland Basin were used to estimate
the historic speed of deep-water flow past the southern tip of Iceland, an
important component of the thermohaline circulation of the North Atlantic
and a significant determinant of European climate. Observed changes in
flow correlate with the Little Ice Age and the Medieval Warm Period and
occur during the whole Holocene with a periodicity of about 1500 years.
Generally, the data indicate faster flow during times of warmer climate in
northern Europe; but during the early Holocene, slower flow is also
associated with warmer periods.
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