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Antarctic Radiosonde Observations Reduce Uncertainties and Errors in Reanalyses and Forecasts over the Southern Ocean: An Extreme Cyclone Case
https://kitami-it.repo.nii.ac.jp/records/2000326
https://kitami-it.repo.nii.ac.jp/records/2000326b9a709df-0822-4a2d-b17c-1ea6f06b02f1
| 名前 / ファイル | ライセンス | アクション |
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s00376-019-8231-x.pdf (4.6 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||
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| 公開日 | 2022-09-08 | |||||||||||||||||
| タイトル | ||||||||||||||||||
| タイトル | Antarctic Radiosonde Observations Reduce Uncertainties and Errors in Reanalyses and Forecasts over the Southern Ocean: An Extreme Cyclone Case | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
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| 言語 | eng | |||||||||||||||||
| 資源タイプ | ||||||||||||||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||
| タイプ | journal article | |||||||||||||||||
| 著者 |
Kazutoshi SATO
× Kazutoshi SATO
× Jun INOUE
× Akira YAMAZAKI
× Naohiko HIRASAWA
× Konosuke SUGIURA
× Kyohei YAMADA
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| 抄録 | ||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||
| 内容記述 | Cyclones with strong winds can make the Southern Ocean and the Antarctic a dangerous environment. Accurate weather forecasts are essential for safe shipping in the Southern Ocean and observational and logistical operations at Antarctic research stations. This study investigated the impact of additional radiosonde observations from Research Vessel "Shirase" over the Southern Ocean and Dome Fuji Station in Antarctica on reanalysis data and forecast experiments using an ensemble data assimilation system comprising the Atmospheric General Circulation Model for the Earth Simulator and the Local Ensemble Transform Kalman Filter Experimental Ensemble Reanalysis, version 2. A 63-member ensemble forecast experiment was conducted focusing on an unusually strong Antarctic cyclonic event. Reanalysis data with (observing system experiment) and without (control) additional radiosonde data were used as initial values. The observing system experiment correctly captured the central pressure of the cyclone, which led to the reliable prediction of the strong winds and moisture transport near the coast. Conversely, the control experiment predicted lower wind speeds because it failed to forecast the central pressure of the cyclone adequately. Differences were found in cyclone predictions of operational forecast systems with and without assimilation of radiosonde observations from Dome Fuji Station. |
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| 言語 | en | |||||||||||||||||
| 書誌情報 |
en : ADVANCES IN ATMOSPHERIC SCIENCES 巻 37, p. 431-440, 発行日 2020 |
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| 権利 | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 権利情報 | © The Author(s) 2020 | |||||||||||||||||
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| 出版者 | Springer Nature | |||||||||||||||||
| 言語 | en | |||||||||||||||||
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| 言語 | en | |||||||||||||||||
| 値 | publisher | |||||||||||||||||
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| 出版タイプ | VoR | |||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||||
