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Author: QJ Wang

How suitable is quantile mapping for post-processing GCM precipitation forecasts?

How suitable is quantile mapping for post-processing GCM precipitation forecasts?

Contributed by QJ Wang, University of Melbourne* Back in September 2015 at the highly successful HEPEX Seasonal Hydrological Forecasting Workshop at SMHI in Norrkoping, Sweden, I heard a number of presentations and saw posters on the use of quantile mapping for post-processing or downscaling GCM precipitation forecasts. While quantile mapping was well known to be highly effective in bias correction, I was concerned that some of its limitations might not have been apparent to some people. After discussing with Andy…

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