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dc.contributor.author | Noguchi, S. | en |
dc.contributor.author | Kuroda, Y. | en |
dc.contributor.author | Mukougawa, H. | en |
dc.contributor.author | Mizuta, R. | en |
dc.contributor.author | Kobayashi, C. | en |
dc.contributor.alternative | 向川, 均 | ja |
dc.date.accessioned | 2020-08-19T04:19:13Z | - |
dc.date.available | 2020-08-19T04:19:13Z | - |
dc.date.issued | 2020-03-16 | - |
dc.identifier.issn | 0094-8276 | - |
dc.identifier.uri | http://hdl.handle.net/2433/253869 | - |
dc.description.abstract | The observational impacts of satellite data assimilation on extended‐range forecasts of sudden stratospheric warmings (SSWs) are investigated by conducting ensemble forecast experiments. We use two Japanese novel reanalysis products: the Japanese 55‐year reanalysis (JRA‐55) and its subset that assimilates conventional observations only (JRA‐55C). A comparative examination on the reproducibility for SSWs between the two ensemble forecasts reveals that the impact of satellite observations is significant for forecasts starting 5 days before the SSW onset, with 20% less accuracy in the JRA‐55C forecasts. Moreover, some of forecasts of vortex‐splitting SSWs show a sudden appearance of deep difference, which lasts over a few months in the lower stratosphere and significantly affects the surface climate. These results highlight an important role of mesospheric and upper stratospheric circulations on the onset and development of SSWs. | en |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Geophysical Union (AGU) | en |
dc.rights | ©2020. The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. | en |
dc.subject | reanalysis | en |
dc.subject | predictability | en |
dc.subject | satellite data assimilation | en |
dc.subject | stratosphere‐troposphere coupling | en |
dc.subject | sudden stratospheric warming | en |
dc.subject | sub‐seasonal to seasonal prediction | en |
dc.title | Impact of Satellite Observations on Forecasting Sudden Stratospheric Warmings | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.jtitle | Geophysical Research Letters | en |
dc.identifier.volume | 47 | - |
dc.identifier.issue | 5 | - |
dc.relation.doi | 10.1029/2019GL086233 | - |
dc.textversion | publisher | - |
dc.identifier.artnum | e2019GL086233 | - |
dcterms.accessRights | open access | - |
datacite.awardNumber | 16J09665 | - |
datacite.awardNumber | 19K14798 | - |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
出現コレクション: | 学術雑誌掲載論文等 |
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