Radar echo characteristics at Ny-Alesund, Svalbard and Arctic storms over the Norwegian Sea
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概要
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This paper is a preliminary report on radar echo characteristics and Arctic storms near Svalbard. Using an X-band vertically pointing radar data at Ny-Alesund, Svalbard, Norway and synoptic weather charts, the radar echo characteristics are investigated for one year between April 1994 and March 1995. Radar echoes have distinct seasonal variations with respect to height. Taking account of synoptic conditions, each series of radar echoes is classified into four patterns and it is found that they have strong seasonal variations. The low pressure system echo patterns appear throughout the year; their appearance frequencies exceed 50 of all radar echo appearances and increase in early summer and early winter. The appearance frequencies of low pressure systems over the Norwegian Sea have also characteristic strong seasonal variations. These low pressure activities appear to be related to precipitation behavior at Ny-Alesund and vapor transportation to the high Arctic from lower latitudes.
- 国立極地研究所の論文
著者
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Wada Makoto
National Institute For Polar Research
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Asuma Yoshio
Division Of Earth And Planetary Sciences Graduate School Of Science Hokkaido University
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Asuma Yoshio
Division Of Earth & Planetary Science Graduate School Of Science Hokkaido University
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Ogitani Nao
Division of Earth and Planetary Sciences, Graduate School of Science, Hokkaido University
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Ogitani Nao
Division Of Earth And Planetary Sciences Graduate School Of Science Hokkaido University
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Wada Makoto
National Inst. Polar Res. Tokyo
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Asuma Yoshio
Division of Earth and Planetary Sciences, Graduate School of Science, Hokkaido University
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