Determination of the Vertical Column Density of Trace Gas Measured by MAX-DOAS
被动多轴DOAS技术污染气体垂直柱浓度反演方法研究

The method and system of determination of trace gas vertical column density by passive MAX-DOAS were described.A so called Fraunhofer spectrum was used as reference spectrum in the DOAS fitting process to reduce the influence of Fraunhofer lines.Ring spectrum was included in the DOAS fitting process as an additional absorber to decrease the Ring effect.And slant column density was converted into vertical column density by the radiative transfer model.Through compare with Dutch-Finnish nadir-pointing spectrometer (OMI) in the period of “Good Luck Beijing” Olympic test games,good correlation was proved.