1. The Federated Data System, DataFed ESIP Winter MeetingESIP Winter Meeting, Jan 10, 2013, Washington DC Rudolf Husar, Washington University, St. Louis Presented at the Air Quality Breakout SessionAir Quality Breakout Session

2. Data Sharing Infrastructure Std. Servers Emission Model Satellite Monitorig Network Data Pool Benefits Informing the Public Health Effects Climate Impact Science & Education Std. Tools User Tools Information Infrastructure DataFed is an implementation of the GEOSS data sharing paradigm DataFed also includes client applications for data browsing, exploration and analysis These flexible tools can be used on any dataset form anywhere on the Web. Adaptors

3. Datafed Browser and Programming Environment 3 Spatial View Time Series View Vertical Profile View Seasonal Cycle View

4. Service Oriented Programming

7. Tools: Near Real Time Consoles

8. Application: August 2012 Western US Fires

9. Tools: Model Evaluation Tool

10. EPA Application: Exceptional Event An Uncontrollable Sources Causes AQ Violation Smoke Event

11. EUS Daily Average 50%-ile, 30 day 50%-ile smoothing Deviation from %-ile Event : Deviation > x*percentile Tools: Automatic Event Detection

12. Exceptional Event: Formal Regulatory Definition

13. AQ Trend and Pattern Analysis 2000-2012: 40% Decline of US PM 2.5 Yearly Avg. PM2.5, 2000-2003 In the 2000-12 period, the avg. PM2.5 conc. declined over the Eastern and Western US. ~14 ug/m3~10 ug/m3 Yearly Avg. PM2.5, 2000-2003 Daily Avg. PM2.5, 2000-2012 Over the entire US, the PM 2.5 decline was a remarkable 40%, from 14 to 10 ug/m3 The count of >35 ug observations has declined by factor of 3 There are much fewer exceedances – fewer EE flags