Rotational vibrational-rotational Raman lidar: design and performance of the RASC Raman lidar at Shigaraki, Japan (34.8 degrees N, 136.1 degrees E)

Andreas Behrendt; Takuji Nakamura; Yukihiko Sawai; Michitaka Onishi; Toshitaka Tsuda

doi:10.1117/12.452774

9 January 2002 Rotational vibrational-rotational Raman lidar: design and performance of the RASC Raman lidar at Shigaraki, Japan (34.8 degrees N, 136.1 degrees E)

Andreas Behrendt, Takuji Nakamura, Yukihiko Sawai, Michitaka Onishi, Toshitaka Tsuda

Author Affiliations +

Proceedings Volume 4484, Lidar Remote Sensing for Industry and Environment Monitoring II; (2002) https://doi.org/10.1117/12.452774
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

The design and the performance of the new Raman lidar of the Radio Science Center for Space and Atmosphere (RASC) at Kyoto University are presented. The system is located at near Shigaraki, Japan, where also one of the world largest atmospheric radars, the MU radar, is operated. Measurement parameters of the lidar are atmospheric temperature (with rotational Raman and with Rayleigh integration technique), water vapor mixing ratio, and optical particle properties. Common Raman lidar takes vibrational-rotational Raman backscatter of nitrogen as a reference signal. In contrast to this, our system makes use of the approximately 10-times stronger pure-rotational Raman signals for deriving both atmospheric temperature and a temperature independent Raman reference signal. This modification leads to a significant reduction of measurement uncertainties. With the RASC lidar, rotational Raman signals with, to our best knowledge, unprecedented intensity can be taken by means of a high-throughput receiver. This allows not only nighttime temperature measurements with a resolution of, e.g., a few minutes near the tropopause, but made also, to our knowledge, the first daytime measurements possible.

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Andreas Behrendt, Takuji Nakamura, Yukihiko Sawai, Michitaka Onishi, and Toshitaka Tsuda "Rotational vibrational-rotational Raman lidar: design and performance of the RASC Raman lidar at Shigaraki, Japan (34.8 degrees N, 136.1 degrees E)", Proc. SPIE 4484, Lidar Remote Sensing for Industry and Environment Monitoring II, (9 January 2002); https://doi.org/10.1117/12.452774

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