Articles | Volume 13, issue 4
Atmos. Meas. Tech., 13, 1735–1756, 2020
https://doi.org/10.5194/amt-13-1735-2020
Atmos. Meas. Tech., 13, 1735–1756, 2020
https://doi.org/10.5194/amt-13-1735-2020

Research article 07 Apr 2020

Research article | 07 Apr 2020

Discrete-wavelength DOAS NO2 slant column retrievals from OMI and TROPOMI

Cristina Ruiz Villena et al.

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Short summary
We present a new method to derive NO2 concentrations from satellite observations that uses up to 30 times less spectral information than traditional methods. We tested the method using data from existing instruments OMI and TROPOMI and found our results agree with the reference data to 5 % and 11 %, respectively. Our method could allow for simpler instrument designs that can be used in low-cost constellations of small satellites for air quality monitoring at high spatial and temporal resolution.