From EOS v.88 (50), Dec. 11 2007, by EOS Staff writer Mohi Kumar:

A seasonal pattern of future climate change in Europe. Analyses of recent global climate change simulations show that Europe and the Mediterranean are particularly sensitive to global warming. In particular, these simulations reveal consistent patterns of 21st-century temperature and precipitation change over Europe, including increased winter precipitation over central and northern Europe and decreased precipitation and large warming in summer over western and central Europe and the Mediterranean. Noting that these patterns are also found in regional climate simulations, Gieorgi and Coppola hypothesized that Europe experiences a marked seasonal and latitudinal pattern related to future climate change. They term this pattern the European Climate-Change Oscillation (ECO).


Using the same ensemble of models that supported the Intergovernmental Panel on Climate Change Fourth Assessment Report, the authors found signatures of ECO in temperature, precipitation, and air circulation patterns. They defined two indices that can be used to measure ECO's strength based on latitudinal and seasonal climate change gradients. The authors expect that further attempts to define ECO will help Europeans better prepare themselves for future climate change. (Geophysical Research Letters, doi:10.1029/2007GL031223, 2007)

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