Retrieval of Atmospheric CO₂ and CH₄ Variations Using Ground-Based High Resolution Fourier Transform Infrared Spectra

Figure 2

CO₂ spectral fitting within 6339 cm⁻¹ window: the spectrum was recorded on October 8, 2014, 0:47 (UTC). Black lines are the measurements, orange lines are the fitted transmittance, and contributions from individual gases are shown in color. Fitting residuals () for CO₂ are 0.2459%.