Observations of Cloud Properties Using the Developed Millimeter-Wave FM-CW Radar at 95 GHz
[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...
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Chiba University. Center for Environmental Remote Sensing
2005
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ftchibauniv:oai:opac.ll.chiba-u.jp:104190 2024-06-09T07:44:11+00:00 Observations of Cloud Properties Using the Developed Millimeter-Wave FM-CW Radar at 95 GHz TAKANO, Toshiaki AKITA, Ken-ichi KUBO, Hiroshi KAWAMURA, Youhei KUMAGAI, Hiroshi TAKAMURA, Tamio NAKANISHI, Yuji NAKAJIMA, Teruyuki 鷹野, 敏明 秋田, 健一 久保, 博 河村, 洋平 熊谷, 博 高村, 民雄 中西, 裕治 中島, 映至 dateofissued:2005-02-17 application/pdf https://opac.ll.chiba-u.jp/da/curator/104190/ https://opac.ll.chiba-u.jp/da/curator/104190/BA71319447-10-P160.pdf eng eng Chiba University. Center for Environmental Remote Sensing 千葉大学環境リモートセンシング研究センター NCID:BA71319447 jtitle:Proceedings of the CEReS international symposium = CEReS国際シンポジウム資料集 volume:10 spage:160 epage:165 https://opac.ll.chiba-u.jp/da/curator/104190/ https://opac.ll.chiba-u.jp/da/curator/104190/BA71319447-10-P160.pdf Presentation text 2005 ftchibauniv 2024-05-15T08:22:10Z [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. Conference Object Arctic Arctic Ocean CURATOR - Chiba University Repository for Access to Outcomes from Research Arctic Arctic Ocean |
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Open Polar |
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CURATOR - Chiba University Repository for Access to Outcomes from Research |
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ftchibauniv |
language |
English |
description |
[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. |
format |
Conference Object |
author |
TAKANO, Toshiaki AKITA, Ken-ichi KUBO, Hiroshi KAWAMURA, Youhei KUMAGAI, Hiroshi TAKAMURA, Tamio NAKANISHI, Yuji NAKAJIMA, Teruyuki 鷹野, 敏明 秋田, 健一 久保, 博 河村, 洋平 熊谷, 博 高村, 民雄 中西, 裕治 中島, 映至 |
spellingShingle |
TAKANO, Toshiaki AKITA, Ken-ichi KUBO, Hiroshi KAWAMURA, Youhei KUMAGAI, Hiroshi TAKAMURA, Tamio NAKANISHI, Yuji NAKAJIMA, Teruyuki 鷹野, 敏明 秋田, 健一 久保, 博 河村, 洋平 熊谷, 博 高村, 民雄 中西, 裕治 中島, 映至 Observations of Cloud Properties Using the Developed Millimeter-Wave FM-CW Radar at 95 GHz |
author_facet |
TAKANO, Toshiaki AKITA, Ken-ichi KUBO, Hiroshi KAWAMURA, Youhei KUMAGAI, Hiroshi TAKAMURA, Tamio NAKANISHI, Yuji NAKAJIMA, Teruyuki 鷹野, 敏明 秋田, 健一 久保, 博 河村, 洋平 熊谷, 博 高村, 民雄 中西, 裕治 中島, 映至 |
author_sort |
TAKANO, Toshiaki |
title |
Observations of Cloud Properties Using the Developed Millimeter-Wave FM-CW Radar at 95 GHz |
title_short |
Observations of Cloud Properties Using the Developed Millimeter-Wave FM-CW Radar at 95 GHz |
title_full |
Observations of Cloud Properties Using the Developed Millimeter-Wave FM-CW Radar at 95 GHz |
title_fullStr |
Observations of Cloud Properties Using the Developed Millimeter-Wave FM-CW Radar at 95 GHz |
title_full_unstemmed |
Observations of Cloud Properties Using the Developed Millimeter-Wave FM-CW Radar at 95 GHz |
title_sort |
observations of cloud properties using the developed millimeter-wave fm-cw radar at 95 ghz |
publisher |
Chiba University. Center for Environmental Remote Sensing |
publishDate |
2005 |
url |
https://opac.ll.chiba-u.jp/da/curator/104190/ https://opac.ll.chiba-u.jp/da/curator/104190/BA71319447-10-P160.pdf |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_relation |
NCID:BA71319447 jtitle:Proceedings of the CEReS international symposium = CEReS国際シンポジウム資料集 volume:10 spage:160 epage:165 https://opac.ll.chiba-u.jp/da/curator/104190/ https://opac.ll.chiba-u.jp/da/curator/104190/BA71319447-10-P160.pdf |
_version_ |
1801372972836978688 |