Synoptic climatology of winter daily temperature extremes in Sapporo, northern Japan

Farukh, M. A.; Yamada, Tomohito J.

International journal of climatology, 2018, 38(5), 2230-2238

Permalink : https://hdl.handle.net/2115/70682

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アクセス権
open access
URI
https://hdl.handle.net/2115/70682
タイトル
Synoptic climatology of winter daily temperature extremes in Sapporo, northern Japan
著者
著者名
Farukh, M. A.
e-Rad_Researcher
10554959
著者名
Yamada, Tomohito J.
言語
英語
キーワード
Aleutian low
geopotential height
maximum daily temperature extreme
minimum daily temperature extreme
sea level pressure
Siberian high
発行日
2018-04
出版者
John Wiley & Sons
収録物名
International journal of climatology
巻(号)
38(5)
ページ
2230-2238
抄録
Extreme winter daily temperature is an important parameter for determining winter precipitation. This study used a principal component analysis and k-means clustering to characterize the circulation patterns of extreme daily temperatures for 19 winter seasons in Sapporo, Hokkaido, Japan. Climatological anomaly maps were constructed for sea level pressure (SLP) and the 500-hPa geopotential height for the identified minimum (Tmin(10); 239days) and maximum (Tmax(90); 236days) daily temperature extremes. The Tmax(90) SLP anomaly pattern was the opposite (west-east orientation) of the Tmin(10) pattern. The circulation patterns that predominantly contributed to winter rainfall were derived from cyclones over the Sea of Japan via instability created by abundant heat and moisture over the ocean and a strong positive 500-hPa height anomaly over Hokkaido.
資源タイプ
学術雑誌論文
出版タイプ
Version of Record
権利情報
Creative Commons Attribution 4.0 International
PISSN
0899-8418
関連情報 (isIdenticalTo)
出版社版DOI
https://doi.org/10.1002/joc.5329