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Proceedings Paper

First observational results with the newly developed cloud profiling FM-CW radar at 95 GHz
Author(s): Toshiaki Takano; Yumiro Suga; Kenichi Akita; Youhei Kawamura; Hiroshi Kumagai; Tamio Takamura; Yuji Nakanishi; Teruyuki Nakajima
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Paper Abstract

We developed a cloud profiling radar transmitting frequency-modulated continuous wave (FM-CW) at 95 GHz for ground-based observations. Millimeter wave at 95 GHz is used to realize high sensitivity to small cloud particles. An FM-CW type radar would realize similar sensitivity with much smaller output to a pulse type radar. Two 1m-diameter parabolic antennas separated by 1.4m each other are used for transmitting and receiving the wave. The direction of the antennas is fixed at the zenith. The radar is designed to observe clouds between 0.3 and 15 km in height with a resolution of 15 m. Using the facility, test observations and long term campaign observations have been done. Results of observations show that the system is sensitive and stable enough to observe various clouds.

Paper Details

Date Published: 16 February 2004
PDF: 8 pages
Proc. SPIE 5235, Remote Sensing of Clouds and the Atmosphere VIII, (16 February 2004); doi: 10.1117/12.511586
Show Author Affiliations
Toshiaki Takano, Chiba Univ. (Japan)
CREST, Japan Science and Technology Corp. (Japan)
Yumiro Suga, Chiba Univ. (Japan)
Kenichi Akita, Chiba Univ. (Japan)
Youhei Kawamura, Chiba Univ. (Japan)
Hiroshi Kumagai, CREST, Japan Science and Technology Corp. (Japan)
Communications Research Lab. (Japan)
Tamio Takamura, CREST, Japan Science and Technology Corp. (Japan)
Chiba Univ. (Japan)
Yuji Nakanishi, SciTech Co. Ltd. (Japan)
Teruyuki Nakajima, CREST, Japan Science and Technology Corp. (Japan)
Univ. of Tokyo (Japan)


Published in SPIE Proceedings Vol. 5235:
Remote Sensing of Clouds and the Atmosphere VIII
Klaus P. Schaefer; Adolfo Comeron; Michel R. Carleer; Richard H. Picard, Editor(s)

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