A Note on Systematic Errors in Bayesian Retrieval Algorithms
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概要
- 論文の詳細を見る
Using satellite ice water path (IWP) retrieval as an example, two types of systematic errors when using a Bayesian algorithm are documented. These errors arise from the discontinuous and heavily skewed data distributions of IWP in the supporting database. Discontinuity in the data distribution occurs at IWP=0 since there are no negative IWPs, which causes a positive bias in the IWP retrievals near icefree conditions. On the other hand, since clouds with small IWPs occur more often than clouds with large IWPs in nature, data points in the database are heavily populated in the low IWP range if we build the supporting database based on observed data. This skewed data distribution leads to a negative bias. A number of remedies, while some are ad hoc, to reduce these errors are also suggested.
- 社団法人日本気象学会の論文
- 2007-02-25
著者
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LIU Guosheng
Department of Meteorology, Florida State University
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Liu Guosheng
Department Of Meteorology Florida State University
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Liu Guosheng
Dep. Of Meteorology Florida State Univ.
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SEO Eun-Kyoung
Department of Meteorology, Florida State University
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KIM Kwang-Yul
Department of Meteorology, Florida State University
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Kim Kwang-yul
Department Of Meteorology Florida State University
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Seo Eun-kyoung
School Of Earth And Environmental Sciences Seoul National Univ. Seoul
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Seo Eun-kyoung
Department Of Meteorology Florida State University
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