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Error Found in CSIRO DataIMPORTANT NOTE (APRIL 2005): ERRORS IN CSIRO TEMPERATURE CHANGES In March-April 2005 it was discovered that the CSIRO SRES temperature data employed in the Ruosteenoja et al. (2003) report were erroneous. Due to an error in the model specifications provided to the IPCC DDC for all CSIRO SRES runs, the labels for model skin temperatures and model air temperatures were reversed and therefore skin temperatures were inadvertently analysed rather than air temperatures. These specifications have since been corrected at the DDC (in late 2002). The error only concerns the CSIRO temperature projections (see below). Temperature responses of other models are correct, as well as all precipitation projections. Unless users specifically wish to analyse CSIRO temperature change results, the main messages of the report and associated scatter diagrams concerning the range of uncertainties in modelled projections of regional climate remain unaffected. In most cases differences between the old and revised CSIRO temperature projections are in the order of 0.3 ºC or less. Exceptions, with errors of at least 0.4 ºC, occur for the following regions:
A positive sign indicates that the previously-presented values have been overestimated. A revised text file has been prepared with the corrected values: The errors in the CSIRO temperature projections affect most of the regional scatter diagrams, and the authors expect to complete the revisions of these by autumn 2005. Urgent requests for revised diagrams should be directed to the DDC managers.
Page last modified: 22 July 2008 |
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