Articles | Volume 21, issue 11
Atmos. Chem. Phys., 21, 8593–8614, 2021
Atmos. Chem. Phys., 21, 8593–8614, 2021

Research article 08 Jun 2021

Research article | 08 Jun 2021

Restoring the top-of-atmosphere reflectance during solar eclipses: a proof of concept with the UV absorbing aerosol index measured by TROPOMI

Victor Trees et al.

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Subject: Aerosols | Research Activity: Remote Sensing | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
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Cited articles

Adams, C., McLinden, C. A., Strong, K., and Umlenski, V.: Ozone and NO2 variations measured during the 1 August 2008 solar eclipse above Eureka, Canada with a UV-visible spectrometer, J. Geophys. Res.-Atmos., 115, D19310,, 2010. a
Bernhard, G. and Petkov, B.: Measurements of spectral irradiance during the solar eclipse of 21 August 2017: reassessment of the effect of solar limb darkening and of changes in total ozone, Atmos. Chem. Phys., 19, 4703–4719,, 2019. a, b
Bojkov, R. D.: The ozone variations during the solar eclipse of 20 May 1966, Tellus, 20, 417–421,, 1968. a
Chakrabarty, D., Peshin, S., Srivastav, S., Shah, N., and Pandya, K.: Further evidence of total ozone variation during the solar eclipse of 1995, J. Geophys. Res., 106, 3213–3218,, 2001. a
Chakrabarty, D. K., Shah, N. C., and Pandya, K. V.: Fluctuation in ozone column over Ahmedabad during the solar eclipse of 24 October 1995, Geophys. Res. Lett., 24, 3001–3003,, 1997. a
Short summary
Given the time and location of a point on the Earth's surface, we explain how to compute the wavelength-dependent obscuration during solar eclipses. We restore the top-of-atmosphere reflectances and the absorbing aerosol index in the partial Moon shadow during the solar eclipses on 26 December 2019 and 21 June 2020 measured by TROPOMI. This correction method resolves eclipse anomalies and allows for study of the effect of solar eclipses on the composition of the Earth's atmosphere from space.
Final-revised paper