Articles | Volume 13, issue 6
Atmos. Meas. Tech., 13, 3329–3374, 2020
https://doi.org/10.5194/amt-13-3329-2020
Atmos. Meas. Tech., 13, 3329–3374, 2020
https://doi.org/10.5194/amt-13-3329-2020

Research article 24 Jun 2020

Research article | 24 Jun 2020

The use of the 1.27 µm O2 absorption band for greenhouse gas monitoring from space and application to MicroCarb

Jean-Loup Bertaux et al.

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Short summary
Monitoring of greenhouse gases from space is usually done by measuring the quantity of CO2 and O2 in the atmosphere from their spectral absorption imprinted on the solar spectrum backscattered upwards. We show that the use of the near-infrared band of O2 at 1.27 µm, instead of the O2 band at 0.76 nm used up to now, may be more appropriate to better account for aerosols, in spite of a known airglow emission from ozone. The climate space mission MicroCarb (launched in 2021) includes this new band.