CSSAR airglow gravity wave imager and its preliminary observation

Cui Tu; Xiong Hu; Shangyong Guo; Zhaoai Yan; Yongqiang Cheng

doi:10.1117/12.835580

6 August 2009 CSSAR airglow gravity wave imager and its preliminary observation

Cui Tu, Xiong Hu, Shangyong Guo, Zhaoai Yan, Yongqiang Cheng

Proceedings Volume 7384, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Imaging Detectors and Applications; 73841K (2009) https://doi.org/10.1117/12.835580
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China

Abstract

The CSSAR airglow imager is developed to investigate the atmospheric gravity waves near the mesopause region. The CSSAR imager consists of a fisheye with a focal length of 10.5 mm and an F number of 2.8, three pieces of lenses for collimation, two filters, an imaging lens and a scientific CCD camera with 1024x1024 array, 24x24 micros pixels. Two filters for measuring the OH Meinel band (750-850nm) airglow layer peaking at 87 km and the O2 (865nm) airglow layer peaking at 90 km are used in the imager. Preliminary observation of the all-sky OH Meinel band airglow has been done during 02:00 to 06:00 on Jan. 5th, 2009, at Hancun (39.4°N, 116.6°E), Langfang, Hebei, which is the first time to image gravity wave in China. Case study shows that one quasi-monochromatic gravity wave has the horizontal wavelength of ~19 km, observed horizontal phase velocity of ~18 m/s, horizontal propagating azimuth direction of ~269° and observed period of ~18 min.

Citation Download Citation

Cui Tu, Xiong Hu, Shangyong Guo, Zhaoai Yan, and Yongqiang Cheng "CSSAR airglow gravity wave imager and its preliminary observation", Proc. SPIE 7384, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Imaging Detectors and Applications, 73841K (6 August 2009); https://doi.org/10.1117/12.835580

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