A54A-02
East Asia: A Region of Superlatives in Changing Global Atmospheric Composition

Friday, 18 December 2015: 16:15
3010 (Moscone West)
Randall Martin, Aaron van Donkelaar, Jeffrey Geddes, Graydon Snider, Crystal Weagle and Junwei Xu, Dalhousie University, Halifax, NS, Canada
Abstract:
Satellite remote sensing offers a powerful data source to inform East Asian air quality, and to place that information in a global context. Chemical transport models play a critical role in relating those observations of the atmospheric column to ground-level concentrations. Satellite-based estimates of ground-level fine-particulate matter (PM2.5) and NO2 indicate dramatic variation and trends, with implications for public health. The GOCI geostationary satellite instrument provides unprecedented temporal resolution over East Asia. An emerging ground-based aerosol network (SPARTAN) offers valuable measurements to understand the relationship between satellite observations of aerosol optical depth and ground-level PM2.5 concentrations. This talk will highlight recent advances and future opportunities in combining satellite remote sensing, chemical transport modeling, and ground-based measurements to improve understanding of East Asian air quality, and to place that information in a global context.