Unknown
Wiley
In:
EPIC3Geophysical Research Letters, Wiley, 41(4), pp. 1255-1260, ISSN: 0094-8276
Publication Date:
2019-07-17
Description:
The response of the oceanic circulation to mesoscale atmospheric forcing is studied by
comparing integrations of a global sea ice-ocean model with high-resolution European Centre for
Medium-Range Weather Forecasts analysis data (0.4◦) to those with the same forcing coarse grained to a
resolution typically employed in climate models and atmospheric reanalyses (1.8◦). It is shown that the
representation of mesoscale features in atmospheric forcing fields leads to an increase in the strength of
the wind-driven gyres in the North Atlantic and North Pacific regions of about 5–10% of its mean value. An
increase of similar magnitude is found for the Atlantic meridional overturning circulation. From the results
of this study it is argued that small-scale atmospheric phenomena such as fronts, mesoscale cyclones, and
topographic jets play an important role in driving the mean oceanic circulation.
Repository Name:
EPIC Alfred Wegener Institut
Type:
Article
,
isiRev
Format:
application/pdf
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