Urban Emissions + COVID-19

Cities are the largest source of anthropogenic carbon gases to the atmosphere. Due to the COVID-19 pandemic, on-road transportation and economic activity were dramatically reduced in the New York City metro area in early 2020. This scenario provides an ideal opportunity to estimate the carbon emissions of the region which rapidly disappeared and place these changes within the scope of meteorological and non-local source variability.

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Data, Tools, and Methods

Concentration observations at the City University of New York (CUNY) of carbon gases (carbon dioxide, methane, carbon monoxide) made by
Commane Atmospheric Composition Group

Global (EDGAR) and United States (EPA) emission inventories

Lagrangian transport (HRRR-STILT) and biogenic flux (VPRM) modeling