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Global synchrony of an accelerating rise in sea surface temperature
Reid, Ph.C.; Beaugrand, G. (2012). Global synchrony of an accelerating rise in sea surface temperature. J. Mar. Biol. Ass. U.K. 92(7): 1435-1450. hdl.handle.net/10.1017/S0025315412000549
In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154; e-ISSN 1469-7769, meer
Peer reviewed article  

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Trefwoorden
    El Nino
    Hazards > Geological hazards > Earthquakes
    Ice > Sea ice
    Information > Information processing > Data analysis > Analysis > Statistical analysis > Multivariate analysis > Principal component analysis
    Motion > Water motion > Water currents > Boundary currents
    Sea surface temperature
    Marien
Author keywords
    Atlantic Multidecadal Oscillation; Gyre Index; Ecosystem synchrony; Regime shift

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Abstract
    The oceans have shown a recent rapid and accelerating rise in temperature with, given the close link between temperature and marine organisms, pronounced effects on ecosystems. Here we describe for the first time a globally synchronous pattern of pulsed short period (~1 year long) emanations of warm sea surface temperature anomalies from tropical seas towards the poles on the shelf/slope with an intensification of the warming after the 1976/1977, 1986/1987 and 1997/1998 El Niños. On the eastern margins of continents the anomalies propagate towards the poles in part by largely baroclinic boundary currents, reinforced by regional atmospheric warming. The processes contributing to the less continuous warm anomalies on western margins are linked to the transfer of warmth from adjacent western boundary currents. These climate induced events show a close parallelism with the timing of ecosystem changes in shelf seas, important for fisheries and ecosystem services, and melting of sea-ice.

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