Pulse Brain · Growing Health Evidence Index
Peer-reviewed

Precipitation Bias Correction: A Novel Semi‐parametric Quantile Mapping Method

Chandra Rupa Rajulapati, Simon Michael Papalexiou

Earth and Space Science · 2023

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Summary

Abstract Bias correction methods are used to adjust simulations from global and regional climate models to use them in informed decision‐making. Here we introduce a semi‐parametric quantile mapping (SPQM) method to bias‐correct daily precipitation. This method uses a parametric probability distribution to describe observations and an empirical distribution for simulations. Bias‐correction techniques typically adjust the bias between observation and historical simulations to correct projections. The SPQM however corrects simulations based only on observations assuming the detrended simulations have the same distribution as the observations. Thus, the bias‐corrected simulations preserve the climate change signal, including changes in the magnitude and probability dry, and guarantee a smooth

Source type
Peer-reviewed study
DOI
10.1029/2023ea002823
Catalogue ID
SNmokbvxps-eiukrn
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