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
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
Datafed Browser and Programming Environment 3 Spatial View Time Series View Vertical Profile View Seasonal Cycle View
Service Oriented Programming
Tools: Near Real Time Consoles
Application: August 2012 Western US Fires
Tools: Model Evaluation Tool
EPA Application: Exceptional Event An Uncontrollable Sources Causes AQ Violation Smoke Event
EUS Daily Average 50%-ile, 30 day 50%-ile smoothing Deviation from %-ile Event : Deviation > x*percentile Tools: Automatic Event Detection
Exceptional Event: Formal Regulatory Definition
AQ Trend and Pattern Analysis : 40% Decline of US PM 2.5 Yearly Avg. PM2.5, In the period, the avg. PM2.5 conc. declined over the Eastern and Western US. ~14 ug/m3~10 ug/m3 Yearly Avg. PM2.5, Daily Avg. PM2.5, 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