Long-term monitoring of snow conditions in Japanese mountains
| Autor: | Yamaguchi, Satoru, Ito, Yoichi, Sunako, Sojiro, Yamashita, Katsuya, Arakawa, Hayato, Nemoto, Masaki |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Zdroj: | XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) |
| Popis: | Japan has a wide variation in the snowy environments and it is anticipated that climate change will alter the snow-cover conditions. Although a lot of meteorological observation sites managed by the Japan Meteorological Agency are located in the low altitude areas, few observation sites are located in the high altitude areas. Therefore, quantitative variations in snow conditions in Japan's mountainous regions are not yet well understood due to the lack of long-term observational data. The Snow and Ice Research Center, National Research Institute for Earth Science and Disaster Resilience has managed a Snow and Weather Observation Network, operating for over 25 years, covering the northern part to the western part of Japanese mountains, which monitors fluctuations in meteorological and snow cover conditions in high altitude areas. These data are used not only to investigate the influence of climate change on snowy environments in Japan but also to mitigate snow disasters which have changed drastically in frequency and intensity owing to the changes in climatic conditions. Our long-term observations revealed that the trends of variation of maximum snow depth and maximum snow water equivalent are almost the same, but the range of variation of maximum snow water equivalent is larger than that of maximum snow depth. It was also found that the trend of variation of the maximum snow depth depends on elevation and that the variation may differ between mountainous and flat areas. The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) |
| Databáze: | OpenAIRE |
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