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Assessing the Influence of COVID-19 on the Shortwave Radiative Fluxes Over the East Asian Marginal Seas.
- Source :
-
Geophysical research letters [Geophys Res Lett] 2021 Feb 16; Vol. 48 (3), pp. e2020GL091699. Date of Electronic Publication: 2021 Feb 02. - Publication Year :
- 2021
-
Abstract
- The Coronavirus Disease 2019 (COVID-19) pandemic led to a widespread reduction in aerosol emissions. Using satellite observations and climate model simulations, we study the underlying mechanisms of the large decreases in solar clear-sky reflection (3.8 W m <superscript>-2</superscript> or 7%) and aerosol optical depth (0.16 W m <superscript>-2</superscript> or 32%) observed over the East Asian Marginal Seas in March 2020. By separating the impacts from meteorology and emissions in the model simulations, we find that about one-third of the clear-sky anomalies can be attributed to pandemic-related emission reductions, and the rest to weather variability and long-term emission trends. The model is skillful at reproducing the observed interannual variations in solar all-sky reflection, but no COVID-19 signal is discerned. The current observational and modeling capabilities will be critical for monitoring, understanding, and predicting the radiative forcing and climate impacts of the ongoing crisis.<br /> (© 2020. The Authors. This article has been contributed to by US Government employees and their work is in the public domain in the USA.)
Details
- Language :
- English
- ISSN :
- 0094-8276
- Volume :
- 48
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Geophysical research letters
- Publication Type :
- Academic Journal
- Accession number :
- 33612880
- Full Text :
- https://doi.org/10.1029/2020GL091699