Resolution Dependency of Numerically Simulated Stratosphere-to-Troposphere Transport Associated with Mid-Latitude Closed Cyclones in Early Spring around Japan
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- Yamashita Yousuke
- Japan Agency for Marine-Earth Science and Technology
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- Takigawa Masayuki
- Japan Agency for Marine-Earth Science and Technology
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- Ishijima Kentaro
- Japan Agency for Marine-Earth Science and Technology
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- Akiyoshi Hideharu
- National Institute for Environmental Studies
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- Kodama Chihiro
- Japan Agency for Marine-Earth Science and Technology
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- Yashiro Hisashi
- RIKEN Advanced Institute for Computational Science (AICS)
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- Satoh Masaki
- Japan Agency for Marine-Earth Science and Technology Atmosphere and Ocean Research Institute, The University of Tokyo
書誌事項
- 公開日
- 2017
- 資源種別
- journal article
- DOI
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- 10.2151/sola.2017-034
- 公開者
- 公益社団法人 日本気象学会
この論文をさがす
説明
<p>The resolution dependency of simulated stratosphere-to-troposphere transport (STT), associated with mid-latitude closed cyclones at mid- and upper-troposphere in early spring around Japan, was investigated using the Nonhydrostatic ICosahedral Atmospheric Model (NICAM), with three horizontal resolutions (∼220, 56, and 14 km). We defined “STT-producing cyclone” as the developed mid-latitude cyclones that have isolated low pressure systems with closed contours at mid- and upper-troposphere, generated by the deepening of a trough. The STT-producing cyclone itself, with a large spatial scale, is well-simulated from three horizontal resolution experiments. As the horizontal resolution increased, the baroclinic zone on the rear side of the surface cold front became sharper along the southern areas of the upper low, bringing stratospheric dry air down to the troposphere. This comprises a sharp and deep intrusion of dry air into the troposphere, with increased dry air along the jet-axis. While the sufficient resolution for accurate estimation remains unclear, these results suggest that the minimum horizontal resolution for reproducing the sharp and deep intrusion from the stratosphere to the troposphere during the STT-producing cyclone events is approximately 14-56 km.</p>
収録刊行物
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- SOLA
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SOLA 13 (0), 186-191, 2017
公益社団法人 日本気象学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390282680199021440
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- NII論文ID
- 130006179171
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- NII書誌ID
- AA12022899
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- ISSN
- 13496476
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- JaLC
- IRDB
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可
