Table 2 Atmospheric parameters used in this study.

From: Mineral dust increases the habitability of terrestrial planets but confounds biomarker detection

Parameter

Control simulations

Synthetic observations

Mean surface pressure (Pa)

105

105

R (J kg−1 K−1)

297

287.05

cp (J kg−1 K−1)

1039

1005

CO2 MMR (kg kg−1) / ppm

5.941 × 10−4 / 378

5.941 × 10−4 / 391

O2 MMR (kg kg−1) / ppm

0

0.2314 / 209 × 103

O3 MMR (kg kg−1) / ppm

0

2.4 × 10−8 / 0.015 (min)

  

1.6 × 10−5 / 9.66 (max)

CH4 MMR (kg kg−1) / ppm

0

1.0 × 10−7 / 0.18

N2O MMR (kg kg−1) / ppm

0

4.9 × 10−7 / 0.32

  1. Shown for the baseline simulations with a simple nitrogen plus trace CO2 atmosphere, and the synthetic observations with a more Earth-like atmosphere. Gas quantities are given in mass-mixing ratio (MMR) and parts per million (ppm).