北日本にみられる4月，8月の気温の相関関係とその要因

大久保 さゆり; 井上 聡; 菅野 洋光

doi:10.14866/ajg.2023s.0_226

Annual Meeting of the Association of Japanese Geographers, Spring 2023

Session ID : 111

DOI https://doi.org/10.14866/ajg.2023s.0_226

Conference information

Host: The Association of Japanese Geographers

Name : Annual Meeting of the Association of Japanese Geographers, Spring 2023

Date : March 25, 2023 - March 27, 2023

Correlation between temperatures in April and August in northern Japan and its factors

*Sayuri OKUBO, Satoshi INOUE, Hiromitsu KANNO

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Keywords: seasonal inter-relationships, Antarctic Oscillation (AAO), mid-latitudes

CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

We report our analysis of the negative correlation between April and August monthly mean temperatures in northern Japan between 1999 and 2011, as shown in a previous study by Kanno (2013), by extending the period to 2021. The results show that the correlation between April and August monthly mean temperatures in northern Japan persists even if the period is extended to 2021, and that the correlation is observed widely in Japan. The regression coefficient distribution of the Antarctic Oscillation (AAO) index for May for April and August showed a significant relationship around northern Japan in both April and August.

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