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Two test-cases for synergistic detections in the Martian atmosphere: Carbon monoxide and methane

Vandaele, A. C.; Daerden, F.; Robert, S. +5 more

In the frame of the scientific preparation of ExoMars Trace Gas Orbiter (EMTGO), synergistic retrievals were performed on synthetic spectra of two different remote sensing instruments of the Martian atmosphere. To benefit from their diversity, we have simulated spectra of a Fourier transform spectrometer (FTS), working in the middle to far infrare…

Potential infrared relaxation channels calculated for CO₂ clathrate hydrates

Lakhlifi, Azzedine; Dahoo, Pierre Richard; Chassefière, Eric

The infrared bar-spectrum of a single carbon dioxide molecule encapsulated in nano-cage clathrate hydrate is determined using the LD (Lakhlifi-Dahoo) extended site inclusion model successfully applied to analyze the spectra of CO₂ isotopologues isolated in rare gas matrices. Trapping is energetically more favorable in clathrate structur…