Bias Correction for Climate Model Output (1) Method Characteristics and Classification

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  • 気候モデル出力値のバイアス補正（1）特徴に基づく手法の整理
  • キコウ モデル シュツリョクチ ノ バイアス ホセイ(1)トクチョウ ニ モトズク シュホウ ノ セイリ

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Abstract

<p>　This report presents a summary of methods to correct bias in output data from climate models. Climate change impact assessment necessitates appropriate handling of the bias in the climate model output. Before reviewing earlier studies related to bias correction and summarizing information to choose a method, this report presents a description of the relation between bias correction and statistical downscaling, which is often applied for post-processing of climate model output values. Bias correction methods include methods of two types: methods directly correcting a target variable and methods correcting physical processes. Differences between them are reviewed. Methods of selecting them properly are discussed herein, with review of methods developed and verified in earlier studies. After discussion of the respective methods’ benefits and shortcomings, this report explains methods used for verification and evaluation of bias correction.</p>

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