| Project/Area Number |
16K17809
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Kobe University |
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Principal Investigator |
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| Research Collaborator |
YASHIRO Hisashi
NISHIZAWA Seiya
TOMITA Hirofumi
NAKAJIMA Kensuke
ISHIWATARI Masaki
TAKAHASHI Yoshiyuki O.
HAYASHI Yoshi-Yuki
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Keywords | 地球流体力学 / 数値解法 / 数値モデル / Ruby / 準二年周期振動 / 数値実験 / 大気力学 / QBO的振動 / 時間積分法 / 階層的 / 球面調和関数変換 / 惑星大気 |
|---|
| Outline of Final Research Achievements |
Towards the understanding of Venusian fastly rotating atmosphere, superrotation, hierarchical numerical models for atamospheric dynamics and geophysical fluid dynamics have been developed. I found a strong dendence of large-scale numerical results on numerical methods from preliminary experiments using existing atmospheric general circulation models. To understand such numerical dependence and to develop the hierarchical models, I developed an environment for experimental numerical calculations by using a scripting programing language Ruby and published as a library.
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| Academic Significance and Societal Importance of the Research Achievements |
従来広く認識されていなかった、大気モデルにおける大規模場の数値解法依存性を発見し示すことが出来た。これは気象学における数値シミュレーションの根幹に関わる重要な問題であり、この問題を提起できたことの学術的意義は非常に大きい。そして、この問題に対峙するための道具としての数値計算の実験環境を構築・公開することで、当該分野の研究コミュニティに貢献することが出来た。
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