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Images: A Century of North Atlantic Data Indicates Interdecadal Change

Geographical distribution of weather reports over the world. Colored areas show the average number of weather reports per month in each 2° latitude by 2° longitude square over the world oceans for each of the time periods indicated. White areas indicate there are no reports.

Average distributions of sea surface temperature (°C) (top) and near surface wind climatology (bottom) over the North Atlantic since 1900. The longest wind arrow corresponds to 8 meters per second.

History of sea surface temperatures for the region directly south and east of Newfoundland since 1900. Values are departures from normal in degrees Celcius. The red curve is a low-pass filtered version of the black curve, emphasizing fluctuations longer than a few years.

Composite of decadal-scale cold events in the North Atlantic using sea surface temperature and wind anomaly patterns since 1900. Blue (red) contours indicate colder (warmer) than normal sea surface temperatures. The longest wind arrow is 1 meter per second.

History of sea ice amounts in the Labrador Sea in relation to sea surface temperatures in the North Atlantic since 1953.