Using onion-peeling method toinverse ozone density based on the stellar occultation technology in the near space region

Using the dataset of GOMOS, this paper proposes a simple inversion method - onion-peeling method to retrieve the ozone density in the near space region. Under the assumption of symmetrical and layered horizontally atmosphere ,the onion-peeling method uses a single band spectrum to inversion, assuming that the atmospheric absorption effect of the spectra at this wavelength is entirely caused by ozone, which means the wavelength at which ozone absorption is chosen to occupy an absolute advantage. After analysis and compare, it is suitable to use the spectra of 290nm to retrieve the density at the altitude during50-100km and the spectral of 600nm to retrieve the density at the altitude during15-50km.According to Beer-Lambert's law, ozone density is obtained by the onion-peeling method using the stellar transmission spectra from top to bottom at the tangent height.