To capture complicated CO₂ distribution at the volcanic crater of Solfatara (Italy), a 2-D map of volcanic CO₂ distribution has been inverted from path-integrated measurements. It is in agreement with independent measurements and confirms an area of anomalous CO₂ degassing along the eastern edge and the center of the crater. The method may have important implications for measurements of degassing features that can only be accessed from limited angles, e.g. airborne sensing of volcanic plumes.