Satellite Observations and Air Quality

Si-Wan Kim (1,2), Gregory Frost (2), Michael Trainer (2), Stuart McKeen (1,2), Jerome Brioude (1,2), Brian McDonald (1,2), Robert Harley (3), Hyo-Jeong Lee (1,2), Jeff Peischl (1,2), Ilana Pollack (1,2,4), Thomas Ryerson (2), and satellite retrieval groups at U. of Bremen, KNMI, NASA, and UC Berkeley

Abstract
Satellites have observed tropospheric atmospheric chemical composition and have provided critical information of trends, sources, and emission rates of chemical species since 1996. NOAA CSD has utilized satellite data, airborne in-situ data, and the regional chemical transport model to (1) track long-term NOx emission change in the U.S., (2) improve NOx and volatile organic compound (VOC) emission inventories, and (3) validate satellite retrievals. Our research includes cities and power plants in eastern and western U.S., urban and industrial sources in Texas, and urban and agricultural areas in California. We also investigated upwind of the U.S including China, Korea, and Japan.