Watts Up With That?

Kevin Trenberth is one of the authors of new Balmaseda et al (2013) paper Distinctive climate signals in reanalysis of global ocean heat content.

I find the title of the paper somewhat odd. The paper is based on the European Centre for Medium-Range Weather Forecasts (ECMWF) Ocean Reanalysis ORAS4. That reanalysis is described in detail in the Balmaseda et al (2012) paper (submitted) Evaluation of the ECMWF Ocean Reanalysis ORAS4. Basically, the reanalysis is the product of a climate model that has data rolled into it. Since volcanic aerosols and sea surface temperatures are used as inputs, it should therefore come as no surprise that the reanalysis will include the “distinctive climate signals” associated with El Niños and volcanic eruptions.

FIRST: A BRIEF LOOK AT THE EARLIER PAPER THAT DESCRIBES THE ORAS4 REANALYSIS

Figure 1 - Balmaseda et al 2012 Figure 4

Figure 1

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