Characteristics of the Cold Air Drainage on the Southeastern Slope of Mt. Shiouji in Dazaifu - Collections | Kyushu University Library

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＜departmental bulletin paper＞
Characteristics of the Cold Air Drainage on the Southeastern Slope of Mt. Shiouji in Dazaifu

Creator	Author PID K001643 Creator Name 森, 牧人 Mori, Makito Affiliation Affiliation Name 九州大学新キャンパス計画推進室 \| 九州大学大学院農学研究院生産環境科学部門地域環境科学講座気象環境学研究室 Kyushu University New Campus Planning Office \| Laboratory of Applied Meteorology, Division of Regional Environment Science, Department of Bioproduction Environmental Sciences, Kyushu University
Creator	Author PID K000522 Creator Name 小林, 哲夫 Kobayashi, Tetsuo Affiliation Affiliation Name 九州大学大学院農学研究院生産環境科学部門地域環境科学講座気象環境学研究室 Laboratory of Applied Meteorology, Division of Regional Environment Science, Department of Bioproduction Environmental Sciences, Kyushu University
Language	Japanese
Publisher	九州大学大学院農学研究院
Publisher	Faculty of Agriculture, Kyushu University
Date	2000-11
Source Title	Science bulletin of the Faculty of Agriculture, Kyushu University
Vol	55
Issue	1
First Page	45
Last Page	52
Publication Type	Version of Record
Access Rights	open access
JaLC DOI	https://doi.org/10.15017/21067

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PISSN	1347-0159
NCID	AA11577672
Record ID	21067
Peer-Reviewed	Unrefereed
Subject Terms	四王寺山
	斜面
	冷気流
	斜面温暖帯
	平衡冷気流モデル
Notes	Making local meteorological observations on the southeastern slope of Mt. Shiouji in Dazaifu on a calm clear night in April, 1993, we examined the actual conditions of cold air drainage and thermal belt on the hillside. After sunset, the cold air layer suddenly appeared and developed, and its thickness was kept being about 20 m through the night. The site where down-slope winds take off the surface was confirmed to be the central part of the thermal belt on the slope. The down-slope wind speed decreased gradually as the night progressed, which seems to be due to the ascent of the surface of the cold air lake that was developing above the foot of the mountain. The relation between the drainage wind speed and the potential temperature deficit in the cold-air-drainage layer can be explained by the equilibrium flow model by Mori et al. (1999).
Notes	四王寺山南東斜面における冷気流の特徴として以下のような知見を得た. 1)日の入り後, 冷気層は急激に発達し, 夜間, その厚さは譯20mでほぼ一定であった. 2)冷気流が斜面を離れる場所は斜面温暖帯の中心部と一致した. 3)冷気流速は夜半から朝方にかけて漸減したが, 冷気湖面が次第に上昇し, その影響が現れた可能性が高い. 4)冷気流速と温位欠損の関係は平衡冷気流モデル(森ら, 1999)により説明できた.
Created Date	2012.07.26
Modified Date	2022.11.11