Articles | Volume 20, issue 17
https://doi.org/10.5194/acp-20-10477-2020
https://doi.org/10.5194/acp-20-10477-2020
Research article
 | 
09 Sep 2020
Research article |  | 09 Sep 2020

Changes in the surface broadband shortwave radiation budget during the 2017 eclipse

Guoyong Wen, Alexander Marshak, Si-Chee Tsay, Jay Herman, Ukkyo Jeong, Nader Abuhassan, Robert Swap, and Dong Wu

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Cited articles

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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, https://doi.org/10.5194/acp-19-4703-2019, 2019. 
Calamas, D. M., Nutter, C., and Guajardo, D. N.: Effect of 21 August 2017 solar eclipse on surface-level irradiance and ambient temperature, International Journal of Energy and Environmental Engineering, 10, 147–156, https://doi.org/10.1007/s40095-018-0290-8, 2019. 
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Short summary
We combine the ground-based observations and radiative transfer model to quantify the impact of the 2017 solar eclipse on surface shortwave irradiation reduction. We find that the eclipse caused local reductions of time-averaged surface flux of about 379 W m-2 (50 %) and 329 W m-2 (46 %) during the ~ 3 h course of the eclipse at the Casper and Columbia sites, respectively. We estimate that the Moon’s shadow caused a reduction of approximately 7 %–8 % in global average surface broadband SW radiation.
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