@article{oai:nipr.repo.nii.ac.jp:00002990,
 author = {Asuma, Yoshio and Ogitani, Nao and Wada, Makoto},
 journal = {Polar meteorology and glaciology},
 month = {Nov},
 note = {P(論文), 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.},
 pages = {82--94},
 title = {Radar echo characteristics at Ny-Alesund, Svalbard and Arctic storms over the Norwegian Sea},
 volume = {19},
 year = {2005}
}