Concepts on Aerosol Characterization R.B. Husar Washington University in St. Louis Presented at EPA – OAQPS Seminar Research Triangle Park, NC, April 4,

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Concepts on Aerosol Characterization R.B. Husar Washington University in St. Louis Presented at EPA – OAQPS Seminar Research Triangle Park, NC, April 4, 2005

NAAMS: National Ambient Air Monitoring Strategy and NCoreNational Ambient Air Monitoring Strategy Applications

Regional Haze Rule: Natural Aerosol The goal is to attain natural conditions by 2064; The baseline is established during The first SIP & Natural Condition estimate in 2008; SIP & Natural Condition Revisions every 10 yrs Natural haze is due to natural windblown dust, biomass smoke and other natural processes Man-made haze is due industrial activities AND man-perturbed smoke and dust emissions A fraction of the man-perturbed smoke and dust is assigned to natural by policy decisions

PM25 NAAQS: Natural and Exceptional Event Rule (Making) What is a Natural or Exceptional Event? How does one document the events? How is event treated in NAAQS

Satellite applications to Smoke/PM management Observation-based smoke emissions : input to dynamic and receptor models Real-time event analysis /forecasting for regulatory and public needs PM exceptional event waivers for NAAQS; PM climatology for NAAQS; spatial analysis; complement NAAMS/Ncore Policy and SIP development: NAAQS, Regional Haze rule; Treaties Decision Support Systems Standards Based Products Platforms, Sensors Data Distribution Handling Tasking Distribution Processing Exploitation NASA ESE Information Cycle Air Quality Assessment Compare to Goals Plan Reductions Track Progress Controls (Actions) Monitoring (Sensing) Set Goals CAAA NAAQS AQ Management Loop

FASTNET Fast Aerosol Sensing Tools for Natural Event Tracking DataFed Data Federation FASTNET is an open communal facility to study non-industrial (e.g. dust and smoke) aerosol events, including detection, tracking and impact on PM and haze. FASTNET output will be directly applicable, to public health protection, Regional Haze rule, SIP and model development as well as toward stimulating the scientific community. The main asset of FASTNET is the community of data analysts, modelers, managers and others participating in the production of actionable knowledge from observations, models and human reasoning The FASTNET community will be supported by a networking infrastructure based on open Internet standards (web services) and a set of web-tools evolving under the federated data system, DataFed. DataFed itself is under the umbrella of the interagency Earth Science Information Partners (ESIP) which includes NASA, NOAA and EPA (soon)

Technical Challenge: Characterization PM characterization requires many different instruments and analysis tools. Each sensor/network covers only a fraction of the 8-D PM data space. Most of the 8D PM pattern is extrapolated from sparse measured data. Satellite-Integral Satellites, integrate over height H, size D, composition C, shape, and mixture dimensions; these data need de-convolution of the integral measures.

Temporal Scales of Aerosol Events A goal of the FASTNET project is to detect and document natural aerosol events in the context of the overall PM pattern Inherently, aerosol events are spikes in the time series of monitoring but the definition and documentation of events has been highly subjective Temporal variation occurs at many scales from micro scale (minutes) to secular scale (decades) At each scale the variation is dominated different combination of the key processes: emission, transport, transformations and removal Natural aerosol events occur mostly at synoptic scale of 3-5 days

Status: CATT & FASTNET have been Eaten by DataFed.Net