Mapping the D/H of water on Mars using high-resolution spectroscopy

摘要: O at 9 slit-positions across the Mars’ disk. We extracted 43 spectra along slit sampling a total of 8.6 arcsec North-South, and leading to disk-map consisting 387 points for each isotope (see Figures 1 2). At footprint, we estimated local atmospheric conditions by querying Mars Climate Database v4.2 [1], highly realistic general-circulation-model (GCM). These parameters were fed multi-layer planetary radiative transfer model (CODAT package [2]), Martian column densities derived from measured spectral line intensities (HDO, H