A081-04
Dense networks for constraining urban emissions: Examples of dramatic and subtle changes during 2020

Wednesday, 9 December 2020: 20:42
Virtual
Ronald C Cohen1, Alex J Turner2, Helen Fitzmaurice3, Jinsol Kim4, Catherine Newman4, Paul J Wooldridge4 and Kevin A Worthington4, (1)University of California, Berkeley, Dept. of Earth and Planetary Science, Berkeley, CA, United States, (2)University of Washington Seattle Campus, Seattle, United States, (3)University of California Berkeley, Berkeley, United States, (4)University of California Berkeley, Berkeley, CA, United States
Recorded Presentation
Abstract:
Dense urban observing networks offer the promise of constraining emissions of CO2, NOx, CO and aerosol precursors with exceptional detail. Observations from the BEACO2N network in the SF Bay Area before and after the reaction to the COVID-19 pandemic provide an example of the possibilities including characterizing CO2 emissions for each day of week, evaluating differences between urban emissions during the day and the night and attributing emissions to individual source sectors with high fidelity. Examples from our team’s analysis and prospects for further extension to other cities and other chemicals will be described.
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