X-band Dual-Polarization Radar Observations of the Supercell Storm that Generated an F3 Tornado on 6 May 2012 in Ibaraki Prefecture, Japan

Shin-ichi SUZUKI; Takeshi MAESAKA; Koyuru IWANAMI; Shingo SHIMIZU; Kaori KIEDA

doi:10.2151/jmsj.2017-019

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X-band Dual-Polarization Radar Observations of the Supercell Storm that Generated an F3 Tornado on 6 May 2012 in Ibaraki Prefecture, Japan

SUZUKI Shin-ichi, MAESAKA Takeshi, IWANAMI Koyuru, SHIMIZU Shingo, KIEDA Kaori

著者情報

キーワード: supercell storm, polarimetric feature, tornado, X-band radar

ジャーナルフリー早期公開

論文ID: 2017-019

DOI https://doi.org/10.2151/jmsj.2017-019

この記事には本公開記事があります。

The final version of this article is now available: Vol. 96A (2018) pp. 25-33

詳細

抄録

X-band dual-polarization (multi-parameter) radars observed the supercell storm that generated an F3 tornado in Ibaraki Prefecture, Japan on 6 May 2012. The observational data collected for the storm clearly show typical polarimetric features of a supercell storm, such as the Z_DR (differential reflectivity) arc, Z_DR column, and K_DP (specific differential phase) column, and their time evolution. The Z_DR arc emerged 10 or 15 min before tornadogenesis. The Z_DR column appeared about 1 hour before Z_DR arc formation and developed intermittently until tornadogenesis. Just when the Z_DR arc appeared, the column was becoming taller and stable, and lasted until the dissipation of the tornado. These Z_DR signatures of the supercell storm lasted around half an hour.

責任著者(Corresponding author)

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