Observations of Cloud Properties Using the Developed Millimeter-Wave FM-CW Radar at 95 GHz

Material type: 文書・図像類

Author: TAKANO, Toshiakiほか

Publisher: Chiba University. Center for Environmental Remote Sensing

Publication date: 2005-02-17

Material Format: Digital

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Note (General)：: type:text[ABSTRACT] We developed a low-power and high-sensitivity cloud profiling radar transmitting frequency modulated continuous wave (FM-CW) at 95...

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Material Type: 文書・図像類
Title: Observations of Cloud Properties Using the Developed Millimeter-Wave FM-CW Radar at 95 GHz
Author/Editor: TAKANO, Toshiaki
AKITA, Ken-ichi
KUBO, Hiroshi
KAWAMURA, Youhei
KUMAGAI, Hiroshi
TAKAMURA, Tamio
NAKANISHI, Yuji
NAKAJIMA, Teruyuki
Author Heading: TAKANO, Toshiaki
AKITA, Ken-ichi
KUBO, Hiroshi
KAWAMURA, Youhei
KUMAGAI, Hiroshi
TAKAMURA, Tamio
NAKANISHI, Yuji
NAKAJIMA, Teruyuki
Publication, Distribution, etc.: Chiba University. Center for Environmental Remote Sensing
Publication Date: 2005-02-17
Publication Date (W3CDTF): 2005-02-17
Periodical title: Proceedings of the CEReS international symposium = CEReS国際シンポジウム資料集
No. or year of volume/issue: 10
Volume: 10
Pages: 160-165
Text Language Code: eng
Target Audience: 一般
Note (General): type:text
[ABSTRACT] We developed a low-power and high-sensitivity 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 much higher sensitivity than lower frequencies to small cloud particles. An FM-CW type radar realizes similar sensitivity with much smaller output power 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 20 km in height with a resolution of 15 m. Using the facility, test observations have been done. Results of observations show that the system can observe clouds of -30dBZ at the distance around 5km, which is sensitive enough to observe various kinds of clouds. Using the developed millimeter-wave FM-CW radar at 95 GHz, we observed clouds in a campaign observation in Amami Island in March 2003, and on a sail on Mirai, a Japanese scientific research vessel, in September 2004 in the Arctic Ocean. The radar provided good and sensitive data in these long-term observations.
Access Restrictions: 限定公開
Related Material (NCID): BA71319447
https://ci.nii.ac.jp/ncid/BA71319447
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 千葉大学 : 千葉大学学術成果リポジトリ