ID 55324
JaLCDOI
Sort Key
6
Title Alternative
A case study on the cyclone activity around Europe from winter to spring of 2000
FullText URL
Author
Kuwana, Yusuke Faculty of Education, Okayama University
Kato, Kuranoshin Graduate School of Education, Okayama University
Takigawa, Yumi Faculty of Education, Okayama University
Kojima, Yumi Faculty of Education, Okayama University
Otani, Kazuo Graduate School of Natural Science and Technology, Okayama University
Abstract
Although the extratropical cyclone is one of the basic systems that characterize the weather and climate in mid-latitude regions with the large meridional temperature gradient, its activity and characteristics would be greatly influenced by the seasonal transition and regional differences of the mean atmospheric fields such as between Europe and East Asia. Furthermore, detailed knowledge of the daily cyclone activity would help to understand deeply the differences of regional climatology including seasonal cycles among various areas. In such interest, the present study performed a case study on the cyclone activity around Europe from winter to spring of 2000. In winter, intraseasonal variation of the Icelandic Low was dominant. In the stage when such intraseasonal-scale Icelandic Low approached to the northwestern Europe, the several lows passed eastward with a few days interval around the intraseasonal-scale low pressure area or its southern edge where the baroclinicity was relatively strong. It is also noted that their center pressure was rather low (below 980hPa). After April, when the seasonal mean Icelandic low had disappeared, different types of the intra-seasonal-scale cyclones and anticyclones were dominantly observed. In the lower SLP stage of the intraseasonal variation in Europe, the low to the southwest of England in the middle of April was of the equivalent barotropic structure and persisted for about ten days. On the other hand, high pressure area extending from England to the northern coast of Germany also persisted for about half month. The southern half of that high area was also of equivalent barotropic structure with warmer air there.
Keywords
cyclone activity around Europe
comparative climatology between Europe and East Asia
seasonal cycle
dynamic climatology
Publication Title
Okayama University Earth Science Report
Published Date
2016-12-27
Volume
volume23
Issue
issue1
Publisher
岡山大学理学部地球科学教室
Publisher Alternative
Department of Earth Sciences, Faculty of Science, Okayama University
Start Page
33
End Page
42
ISSN
1340-7414
NCID
AN10506284
Content Type
Departmental Bulletin Paper
OAI-PMH Set
岡山大学
language
日本語
Copyright Holders
© 2016 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version
publisher
Refereed
False
Eprints Journal Name
esr