書誌事項
- タイトル別名
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- TEMPORAL VARIATIONS OF PREDICTABILITY IN A SIMPLIFIED ATMOSPHERIC CIRCULATION MODEL
- カンリャクカシタ タイキ ジュンカン モデル ニ オケル ヨソク カノウセイ
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Relations between temporal variations in the atmospheric predictability and quasi-stationary (QS) states, such as weather regimes, is investigated both with low- dimensional dynamical systems and with a simplified atmospheric circulation model introduced by Legras and Ghil (1985).As a measure of the predictability, we use the Lorenz index a, introduced by Lorenz (1965), which gives an ensemble average of the perturbation growth rate for a prescribed time interval. As to QS states, we apply the concept established by Mukougawa (1988).In the one-dimensional dynamical system there is the obvious relation that a increases monotonically during the QS state.However, in the multi-dimensional dynamical system there is no obvious relation between α and the QS state. Considering the trajectory only on the attractor, each QS state has its own relationship. In some chaotic solutions of the Legras and Ghil model there is the same relation as in the one-dimensional dynamical system.
収録刊行物
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- 京都大学防災研究所年報. B
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京都大学防災研究所年報. B 39 (B-1), 151-159, 1996-04-01
京都大学防災研究所
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詳細情報 詳細情報について
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- CRID
- 1050001202110211712
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- NII論文ID
- 120001178973
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- NII書誌ID
- AN00027784
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- ISSN
- 0386412X
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- HANDLE
- 2433/72652
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- NDL書誌ID
- 4126772
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- 本文言語コード
- ja
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- 資料種別
- departmental bulletin paper
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- データソース種別
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- IRDB
- NDL
- CiNii Articles