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Proceedings Paper

270-GHz SIS radiometer for stratospheric ClO observation
Author(s): Satoshi Ochiai; Yoshihisa Irimajiri; Harunobu Masuko
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Paper Abstract

A ground-based millimeter-wave radiometer was developed in Communications Research laboratory, and will be operated to observe stratospheric chlorine monoxide, ozone, and nitrous oxide at Eureka, the Arctic stratospheric observatory at 80 degree(s)N and 86 degree(s)W from December 2000. The radiometer is designed to detect weak emission and for long-term observation in a remote site. The most remarkable feature is that all optical components are integrated in the cryo- dewar and cooled down to less than 60 K. This makes the optical length short and is a great advantage to spectroscopic observation of atmosphere because the rapid ripple of spectral baseline due to standing waves never occurs in the input optics and the optics is thermally stable. This new radiometer was installed in Eureka in the spring of 2000. The radiometer system is fully remote- controllable, and will be operated without frequent local operation. We are expecting quasi-simultaneous observation of three molecules with the radiometer from this winter. The detail of the radiometer instruments is presented in this paper.

Paper Details

Date Published: 21 December 2000
PDF: 8 pages
Proc. SPIE 4152, Microwave Remote Sensing of the Atmosphere and Environment II, (21 December 2000); doi: 10.1117/12.410620
Show Author Affiliations
Satoshi Ochiai, Communications Research Lab. (Japan)
Yoshihisa Irimajiri, Communications Research Lab. (Japan)
Harunobu Masuko, Communications Research Lab. (Japan)

Published in SPIE Proceedings Vol. 4152:
Microwave Remote Sensing of the Atmosphere and Environment II
Thomas T. Wilheit; Harunobu Masuko; Hiroyuki Wakabayashi, Editor(s)

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