A new distribution mapping technique for climate model bias correction
McGinnis, S. A., Nychka, D., & Mearns, L. O. (2015). A new distribution mapping technique for climate model bias correction. In Machine Learning and Data Mining Approaches to Climate Science (pp. 91-99). Springer. doi:10.1007/978-3-319-17220-0_9
We evaluate the performance of different distribution mapping techniques for bias correction of climate model output by operating on synthetic data and comparing the results to an "oracle" correction based on perfect knowledge of the generating distributions. We find results consistent across six... Show moreWe evaluate the performance of different distribution mapping techniques for bias correction of climate model output by operating on synthetic data and comparing the results to an "oracle" correction based on perfect knowledge of the generating distributions. We find results consistent across six different metrics of performance. Techniques based on fitting a distribution perform best on data from normal and gamma distributions, but are at a significant disadvantage when the data does not come from a known parametric distribution. The technique with the best overall performance is a novel nonparametric technique, kernel density distribution mapping (KDDM). Show less
