The relationship between seasonal snow cover in Japan and recent climatic change
Open Access
- 1 January 1993
- journal article
- research article
- Published by International Glaciological Society in Annals of Glaciology
- Vol. 18, 166-172
- https://doi.org/10.1017/s0260305500011447
Abstract
Atmospheric circulation patterns associated with snowfall fluctuations in Japan are examined using a rotated empirical orthogonal function (EOF) analysis. We also compute correlation coefficients between the scores of EOF modes in the 500 hPa geopotential height field of the Northern Hemisphere (NH) and amounts of snowfall in Japan on annual, monthly and pentad time scales. It is found that recent variability of snowfall amount in Japan is closely related to the long-term variations of large-scale circulation patterns. It is suggested that the dominance of teleconnection patterns such as Pacific/North American (PNA) and Northern Asian (NA) are responsible for the increase of snowfall in the coastal regions of the Sea of Japan during the cold period for Japan (1977–86).Keywords
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