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Daily ocean monitoring since the 1860s shows record warming of northern European seas
MacKenzie, B.R.; Schiedek, D. (2007). Daily ocean monitoring since the 1860s shows record warming of northern European seas. Glob. Chang. Biol. 13(7): 1335-1347. dx.doi.org/10.1111/j.1365-2486.2007.01360.x
In: Global Change Biology. Blackwell Publishers: Oxford. ISSN 1354-1013, more
Peer reviewed article  

Also published as
  • MacKenzie, B.R.; Schiedek, D. (2007). Daily ocean monitoring since the 1860s shows record warming of northern European seas. CM Documents - ICES, CM 2007(B:02). ICES: Copenhagen. 32 pp., more

Available in Authors | Dataset 

Keywords
    Climate change; Climate change; Surface temperature; Surface temperature; Surface temperature; ANE, Baltic [Marine Regions]; ANE, North Sea [Marine Regions]

Authors  Top | Dataset 
  • MacKenzie, B.R., more
  • Schiedek, D., more

Abstract
    Ocean temperatures in most parts of the world are increasing and are expected to continue to rise during the 21st century. A major challenge to ecologists and marine resource managers is to understand and predict how these global changes will affect species and ecosystems at local scales where temperature more directly affects biological responses and species interactions. Here, we investigate historical variability in regional sea surface temperature in two large heavily exploited marine ecosystems and compare these variations with expected rates of temperature change for the 21st century. We use four of the world’s longest calibrated daily time series to show that trends in surface temperatures in the North and Baltic Seas now exceed those at any time since instrumented measurements began in 1861 and 1880. Temperatures in summer since 1985 have increased at nearly triple the global warming rate, which is expected to occur during the 21st century and summer temperatures have risen two to five times faster than those in other seasons. These warm temperatures and rates of change are due partly to an increase in the frequency of extremely warm years. The recent warming event is exceeding the ability of local species to adapt and is consequently leading to major changes in the structure, function and services of these ecosystems.

Dataset
  • long-term time series of averaged sea surface temperature data, more

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