PSEUDO OBSERVATION DATA CREATION METHOD FOR HYDROMETEOROLOGICAL FACTORS BASED ON REANALYSIS DATA
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- WADA Kosuke
- 九州大学 大学院工学府土木工学専攻
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- MARUYA Yasuyuki
- 九州大学 大学院工学研究院環境社会部門
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- WATANABE Satoshi
- 京都大学 防災研究所
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- YANO Shinichiro
- 九州大学 大学院工学研究院環境社会部門
Bibliographic Information
- Other Title
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- 観測データの乏しい流域での利用に向けた再解析データを用いた水文気象準観測データ作成手法の開発
Description
<p> Reanalysis data has been used instead of observational data in the case of bias correction method is applied for outputs from GCM in an observational data scarce area, in which observational period is less than 20 years. However, reanalysis data does not match the real weather characteristics in a local scale since it is targeted at a global scale. In previous study, a statistical correction method for precipitation of reanalysis data has been developed. However, the method has not been applied for hydrometeorological data except for precipitation. Therefore, this study also developed and applied the method for the hydrometeorological data (temperature, humidity, pressure, shortwave radiation and wind speed). As a result, it is revealed that the distribution of corrected data by the statistical correction method is almost same relative to observational data. Furthermore, in order to increase the correction accuracy, it was found that we should apply probability distribution function (PDF) which is fitted the distribution of observational data according to the situation, since optimal PDF in the statistical correction method is different by the target station/area and/or hydrometeorological data.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 78 (2), I_115-I_120, 2022
Japan Society of Civil Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390294883125316224
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- ISSN
- 2185467X
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- KAKEN
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- Abstract License Flag
- Disallowed