神戸大学附属図書館デジタルアーカイブ
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https://hdl.handle.net/20.500.14094/90004322
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2024-04-20
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90004322 (fulltext)
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90004322
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open access
出版タイプ
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タイトル
Outcomes and challenges of global high-resolution non-hydrostatic atmospheric simulations using the K computer
著者
Satoh, Masaki ; Tomita, Hirofumi ; Yashiro, Hisashi ; Kajikawa, Yoshiyuki ; Miyamoto, Yoshiaki ; Yamaura, Tsuyoshi ; Miyakawa, Tomoki ; Nakano, Masuo ; Kodama, Chihiro ; Noda, Akira T. ; Nasuno, Tomoe ; Yamada, Yohei ; Fukutomi, Yoshiki
著者名
Satoh, Masaki
著者名
Tomita, Hirofumi
著者名
Yashiro, Hisashi
著者ID
A1960
研究者ID
1000020572431
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=de7a5a7c8b79a3f1520e17560c007669
著者名
Kajikawa, Yoshiyuki
梶川, 義幸
カジカワ, ヨシユキ
所属機関名
都市安全研究センター
著者名
Miyamoto, Yoshiaki
著者名
Yamaura, Tsuyoshi
著者名
Miyakawa, Tomoki
著者名
Nakano, Masuo
著者名
Kodama, Chihiro
著者名
Noda, Akira T.
著者名
Nasuno, Tomoe
著者名
Yamada, Yohei
著者名
Fukutomi, Yoshiki
収録物名
Progress in Earth and Planetary Science
巻(号)
4
ページ
13-13
出版者
SpringerOpen
刊行日
2017-04-28
公開日
2017-11-08
抄録
This article reviews the major outcomes of a 5-year (2011-2016) project using the K computer to perform global numerical atmospheric simulations based on the non-hydrostatic icosahedral atmospheric model (NICAM). The K computer was made available to the public in September 2012 and was used as a primary resource for Japan's Strategic Programs for Innovative Research (SPIRE), an initiative to investigate five strategic research areas; the NICAM project fell under the research area of climate and weather simulation sciences. Combining NICAM with high-performance computing has created new opportunities in three areas of research: (1) higher resolution global simulations that produce more realistic representations of convective systems, (2) multi-member ensemble simulations that are able to perform extended-range forecasts 10-30 days in advance, and (3) multi-decadal simulations for climatology and variability. Before the K computer era, NICAM was used to demonstrate realistic simulations of intra-seasonal oscillations including the Madden-Julian oscillation (MJO), merely as a case study approach. Thanks to the big leap in computational performance of the K computer, we could greatly increase the number of cases of MJO events for numerical simulations, in addition to integrating time and horizontal resolution. We conclude that the high-resolution global non-hydrostatic model, as used in this five-year project, improves the ability to forecast intra-seasonal oscillations and associated tropical cyclogenesis compared with that of the relatively coarser operational models currently in use. The impacts of the sub-kilometer resolution simulation and the multi-decadal simulations using NICAM are also reviewed.
カテゴリ
都市安全研究センター
学術雑誌論文
権利
© The Author(s). 2017
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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資源タイプ
journal article
言語
English (英語)
eISSN
2197-4284
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関連情報
DOI
https://doi.org/10.1186/s40645-017-0127-8
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