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Using OMI NO 2 and CAMx simulations to estimate emissions from point and area sources

Using OMI NO 2 and CAMx simulations to estimate emissions from point and area sources. Benjamin de Foy, Saint Louis University NASA Air Quality Applied Sciences Team 6 th Meeting 15-17 January 2014, Rice University.

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Using OMI NO 2 and CAMx simulations to estimate emissions from point and area sources

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  1. Using OMI NO2 and CAMx simulations to estimate emissions from point and area sources Benjamin de Foy, Saint Louis University NASA Air Quality Applied Sciences Team 6th Meeting 15-17 January 2014, Rice University

  2. Estimation of direct emissions and atmospheric processing of reactive mercury using inverse modelingB. de Foy, J.B. Heo, J. J. Schauer, Atmospheric Environment, 2014 Least-Squares Inversion combines Back-trajectories, Forward Dispersion from Forest Fires and the Free Troposphere, Chemical Tracers and a Chemical Box Model

  3. Test Emissions Estimates usingWRF & CAMx simulations Domain 1, 27km cell size Domain 2, 9km cell size Year-long WRF simulations for 2005

  4. Emissions Estimation Methods:Box Model / Gaussian Fit / Exponentially-Modified Gaussian Fit Duncan, B. N., Yoshida, Y., de Foy, B., Lamsal, L. N., Streets, D. G., Lu, Z., & Krotkov, N. A. (2013). The observed response of Ozone Monitoring Instrument (OMI) NO2 columns to NOx emission controls on power plants in the United States: 2005–2011. Atmospheric Environment. “Introduction to Atmospheric Chemistry”, Daniel Jacob

  5. Emissions Estimation Methods:Box Model / Gaussian Fit / Exponentially-Modified Gaussian Fit Lu, Zifeng, et al. "OMI Observations of Interannual Increase in SO2 Emissions from Indian Coal-Fired Power Plants during 2005− 2012." Environmental science & technology (2013). Fioletov, V. E., et al. "Estimation of SO2 emissions using OMI retrievals." Geophysical Research Letters 38.21 (2011).

  6. Emissions Estimation Methods:Box Model / Gaussian Fit / Exponentially-Modified Gaussian Fit Beirle, S., Boersma, K. F., Platt, U., Lawrence, M. G., & Wagner, T. (2011). Megacity emissions and lifetimes of nitrogen oxides probed from space. Science, 333(6050), 1737-1739. Valin, L. C., Russell, A. R., & Cohen, R. C. (2013). Variations of OH radical in an urban plume inferred from NO2 column measurements. Geophysical Research Letters.

  7. Simulation Test Cases: No Chemistry Uniform Plume Directions Eastward Plumes Idealized Winds: 5m/s from the West (31 days) WRF Winds for 2005 (365 days)

  8. Simulation Test Cases: 1 hr Chemical Lifetime Uniform Plume Directions Eastward Plumes Idealized Winds: 5m/s from the West (31 days) WRF Winds for 2005 (365 days)

  9. Emissions Estimation Methods: Box Model Average plume for 2005 interpolated to 2km grid with box used for estimation

  10. Emissions Estimation Methods:Gaussian Fit Average of 2005 Plume 2D Gaussian Fit

  11. Emissions Estimation Methods:Gaussian Fit

  12. Emissions Estimation Methods:Exponentially-Modified Gaussian Fit No Chemistry, WRF Winds, Eastward Plume 1-hr Chemical Lifetime, WRF Winds, Eastward Plume 1D plot of the sum along the y-axis of the rotated plume

  13. Emissions Estimation Methods:Exponentially-Modified Gaussian Fit

  14. Conclusions: Using OMI NO2 and CAMx simulations to estimate emissions from point and area sources Benjamin de Foy, Saint Louis University

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