Japan Geoscience Union Meeting 2014

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Symbol A (Atmospheric, Ocean, and Environmental Sciences) » A-AS Atmospheric Sciences, Meteorology & Atmospheric Environment

[A-AS23_28PM1] Hyper-dense observation network to elucidate micro-scale atmosphreric phenomena

Mon. Apr 28, 2014 2:15 PM - 4:05 PM 424 (4F)

Convener:*Jun-ichi Furumoto(Research Institute for Sustainable Humanosphere, Kyoto University), Jun-ichi Furumoto(Research Institute for Sustainable Humanosphere, Kyoto University), Hisakazu Tsuboya(Division of life support business promossion,NTT DOCOMO Corporation), Chair:Kuniaki Higashi(Research Institute for Sustainable Humanosphere, Kyoto University)

2:55 PM - 3:20 PM

★ [AAS23-12] Fine radar echo structure revealed by a high scanning and high-range-resolution X-band marine radar

*Yasushi FUJIYOSHI1 (1.Inst. Low Temp. Sci., Hokkaido Univ.)

Keywords:marine radar, fine structure of radar echo, precipitating cloud, angel echo, gravity current head

We used an X-band (9410 MHz) marine radar (KODEN Co., Ltd.), which is not powerful and not very sensitive (its peak transmitted power is 25 kW and minimum detection power is -90 dbm); however, the radar has a high range resolution (15 m). Although its antenna usually rotates horizontally to detect ships, we changed the rotation direction of the slot antenna (2 m in length) from horizontal to vertical (Range Elevation Indicator-scan), and recorded every 2 s. We deployed this radar at various places. We will report very interesting phenomena that are firstly detected by this high-scanning and high-resolution radar.