空间科学学报2012，Vol.32Issue(6)：824-828,5.
2009年1月5日廊坊OH气辉观测图像的谱分析
Spectra of the OH Airglow Perturbation on 5 January 2009 at Langfang
摘要
Abstract
It is necessary to observe and analyze the characters of gravity waves to study their effect to upper and middle atmosphere. The first imaging observation experiment of the atmospheric gravity waves in the mesopause region in China with the all-sky OH band airglow CCD imager was made on 5 January 2009, at Hancun (39.4°N, I16.6°E), Langfang, Hebei. Based on the nearly 4-hour data, we obtained the spectra of OH airglow perturbation during this time period, with a horizontal range of about 185 km centered around the observatory (at Hancun, Langfang). The unambiguous power spectrum and angular spectrum method is approved by simulation. The parameters of three quasi-monochromatic gravity waves analyzed before agree with the unambiguous power spectrum. The unambiguous power spectrum and angular spectrum reveal the distribution of wavelengths and propagation directions of the gravity waves during the 4 hours: the lower limit of wavelength is short; the gravity waves propagate more westward than eastward. Compared with the results in other two papers, the directions are different in different sites even in the same season and similar altitudes, which may be related with the different sources of the gravity waves.关键词
重力波，成像，OH，气辉，谱分析Key words
Gravity wave/Image/OH/Airglow/Spectrum分类
天文与地球科学引用本文复制引用
涂翠,胡雄..2009年1月5日廊坊OH气辉观测图像的谱分析[J].空间科学学报,2012,32(6):824-828,5.基金项目
国家自然科学基金项目（40774087,41104099）和国家航天领域高技术课题共同资助 （）
