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- W4387446488 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> Error metrics are useful for evaluating model performance and have been used extensively in climate change studies. Despite the abundance of error metrics in the literature, most studies use only one or two metrics. Since each metric evaluates a specific aspect of the relationship between the reference data and model data, restricting the comparison to just one or two metrics limits the range of insights derived from the analysis. This study proposes a new framework and composite error metrics called Bergen Metrics to summarise the overall performance of climate models and to ease interpretation of results from multiple error metrics. The framework of Bergen Metrics are based on the p-norm, and the first norm is selected to evaluate the climate models. The framework includes the application of a non-parametric clustering technique to multiple error metrics to reduce the number of error metrics with minimum information loss. An example of Bergen Metrics is provided through its application to the large ensemble of regional climate simulations available from the EURO-CORDEX initiative. This study calculates 38 different error metrics to assess the performance of 89 regional climate simulations of precipitation and temperature over Europe. The non-parametric clustering technique is applied to these 38 metrics to reduce the number of metrics to be used in Bergen Metrics for 8 different sub-regions in Europe. These provide useful information about the performance of the error metrics in different regions. Results show it is possible to observe contradictory behaviour among error metrics when examining a single model. Therefore, the study also underscores the significance of employing multiple error metrics depending on the specific use case to achieve a thorough understanding of the model behaviour." @default.
- W4387446488 created "2023-10-10" @default.
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- W4387446488 date "2023-10-09" @default.
- W4387446488 modified "2023-10-11" @default.
- W4387446488 title "Reply on CEC1" @default.
- W4387446488 doi "https://doi.org/10.5194/gmd-2023-134-ac1" @default.
- W4387446488 hasPublicationYear "2023" @default.
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