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Analysis of a year at Bermuda and Year at Labrador Basin data.

Analysis of a year at Bermuda and Year at Labrador Basin data.
Analysis of a year at Bermuda and Year at Labrador Basin data.
Analysis of a year at Bermuda and Year at Labrador Basin data.
Analysis of a year at Bermuda and Year at Labrador Basin data.
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Analysis of a year at Bermuda and Year at Labrador Basin data.
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01/01/1997
Year at Bermuda.jpg
Date is approximate.
Caption from Oceanus magazine, Vol. 39, No. 2., Pg. 26:
Temperature changes recorded in the 1,500 to 2,500 meter layer near Bermuda. The top plots show time series of Bermuda temperature anomaly (red curve) lagged by 6 years, thickness of the Labrador Sea Water layer (blue curve) in its formation area, and temperature of the LSW core (green curve). The lower plot shows a lagged correlation analysis for Bermuda temperature and Labrador Sea Water (LSW) thickness, which is highest for lags of 5 to 7 years. The authors’ interpretation is that sub-polar thickness anomalies result in variability of the volume of LSW entering the subtropics. A large volume of LSW shifts the balance of influence between LSW and Mediterranean Outflow towards LSW. When the LSW is thick, Bermuda sees colder (and fresher) conditions about 6 years later, while a thin LSW source results in stronger Mediterranean Outflow influence and Bermuda sees warmer (and saltier) conditions after about 6 years.
Courtesy of Ruth Curry
© Woods Hole Oceanographic Institution
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