Fusing Surface Monitors, Satellites and Forecasts for Near-real-time Air Quality

BARRON HENDERSON, Pawan Gupta, Shobha Kondragunta, Phil Dickerson, Alqamah Sayeed, Hai Zhang, EPA

     Abstract Number: 617
     Working Group: Aerosols Spanning Spatial Scales: Measurement Networks to Models and Satellites

Abstract
This talk will focus on bringing many data sources together to make the best air quality field possible. It is well known that surface monitors represent the best estimate of what is happening near the monitors, but that monitors are spatially and temporally sparse compared to many data sources. Low-cost sensors, satellites and forecast models are provide better spatial or temporal coverage, but are well-known to have biases. Models and surface monitors have long been “fused” using techniques like natural neighbor/voronoi adjustments. Low-cost Sensors have been calibrated to monitors and included in such fusions. Satellites have increasingly been used with surface observations and statistical models to create surface PM25. This talk will focus on a method and evaluation of a fusion of that includes all these datasets.

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