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Assessing the Influence of COVID‐19 on the Shortwave Radiative Fluxes Over the East Asian Marginal Seas

Ming, Yi and Lin, Pu and Naik, Vaishali and Paulot, Fabien and Horowitz, Larry W. and Ginoux, Paul A. and Ramaswamy, V. and Loeb, Norman G. and Shen, Zhaoyi and Singer, Clare E. and Ward, Ryan X. and Zhang, Zhibo and Bellouin, Nicolas (2021) Assessing the Influence of COVID‐19 on the Shortwave Radiative Fluxes Over the East Asian Marginal Seas. Geophysical Research Letters, 48 (3). Art. No. e2020GL091699. ISSN 0094-8276. https://resolver.caltech.edu/CaltechAUTHORS:20210107-101118570

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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⁻² or 7%) and aerosol optical depth (0.16 W m⁻² 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.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1029/2020gl091699DOIArticle
https://doi.org/10.5067/TERRA-AQUA/CERES/EBAF-TOA_L3B004.1DOIData
https://data.caltech.edu/records/1666DOIData
ORCID:
AuthorORCID
Ming, Yi0000-0002-5324-1305
Lin, Pu0000-0003-2577-6094
Naik, Vaishali0000-0002-2254-1700
Paulot, Fabien0000-0001-7534-4922
Horowitz, Larry W.0000-0002-5886-3314
Ginoux, Paul A.0000-0003-3642-2988
Ramaswamy, V.0000-0002-1984-6423
Loeb, Norman G.0000-0002-2538-9644
Shen, Zhaoyi0000-0002-0444-4720
Singer, Clare E.0000-0002-1708-0997
Ward, Ryan X.0000-0003-2317-3310
Zhang, Zhibo0000-0001-9491-1654
Bellouin, Nicolas0000-0003-2109-9559
Additional Information:© 2020. The Authors. This article has been contributed to by US Government employees and their work is in the public domain in the USA. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. Issue Online: 02 February 2021; Version of Record online: 02 February 2021; Accepted manuscript online: 29 December 2020; Manuscript accepted: 23 December 2020; Manuscript revised: 21 December 2020; Manuscript received: 12 November 2020. The authors thank L. Donner and D. Paynter for their helpful comments on an early draft. Z. Shen acknowledges support from the Ronald and Maxine Linde Challenge for Climate Science Fund. C. E. Singer acknowledges support from the NSF Graduate Research Fellowship under Grant No. DGE‐1745301. R. X. Ward. acknowledges fellowship support from the Resnick Sustainability Institute at Caltech. Data Availability Statement: The AQUA/MODIS MYD08 L3 Global 1 Deg. data set was acquired from the Level‐1 and Atmosphere Archive and Distribution System (LAADS) Distributed Active Archive Center (DAAC), located in the Goddard Space Flight Center in Greenbelt, Maryland (https://ladsweb.nascom.nasa.gov/). The CERES data were obtained from the NASA Langley Research Center Atmospheric Science Data Center (https://doi.org/10.5067/TERRA-AQUA/CERES/EBAF-TOA_L3B004.1). Primary AM4 simulation results that may be used to produce the plots are available are available online (https://data.caltech.edu/records/1666).
Group:Resnick Sustainability Institute, COVID-19
Funders:
Funding AgencyGrant Number
Ronald And Maxine Linde Center for Global Environmental ScienceUNSPECIFIED
NSF Graduate Research FellowshipDGE-1745301
Resnick Sustainability InstituteUNSPECIFIED
Issue or Number:3
Record Number:CaltechAUTHORS:20210107-101118570
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20210107-101118570
Official Citation:Ming, Y., Lin, P., Naik, V., Paulot, F., Horowitz, L. W., Ginoux, P. A., et al. (2021). Assessing the influence of COVID‐19 on the shortwave radiative fluxes over the east asian marginal seas. Geophysical Research Letters, 48, e2020GL091699. https://doi.org/10.1029/2020GL091699
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107358
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:08 Jan 2021 18:28
Last Modified:02 Feb 2021 23:23

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