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Section Contents (This will be a tough one!) Organic and Absorbing Carbon - IMPROVE

NARSTO PM Assessment Chapter 5: Spatial and Temporal Pattern SMOKE (Organics+Abs. Carbon) over North America. Section Contents (This will be a tough one!) Organic and Absorbing Carbon - IMPROVE Fire Locations and TOMS Smoke Pattern The Central American Smoke Event of May 1998.

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Section Contents (This will be a tough one!) Organic and Absorbing Carbon - IMPROVE

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  1. NARSTO PM AssessmentChapter 5: Spatial and Temporal PatternSMOKE (Organics+Abs. Carbon) over North America Section Contents (This will be a tough one!) Organic and Absorbing Carbon - IMPROVE Fire Locations and TOMS Smoke Pattern The Central American Smoke Event of May 1998. Hourly PM10 During the Smoke Event Surface Ozone Concentration during the Smoke Event Smoke Composition at Big Bend, TX Direct questions to Rudolf B. Husar rhusar@me.wustl.edu

  2. Organic and Absorbing Carbon - IMPROVE • IMPROVE, Sisler & Malm

  3. Fire Locations and TOMS Smoke Pattern • Infrared satellite sensors on NOAA polar satellites detect the location of fires under cloud-free conditions • The daily fire location data are routinely processed by ESA • In 1998, the highest fire density was over Central America in April-May. • In July, fires were observed throughout the and particularly in N. Canada. • For April and May 1998, the TOMS satellite data show major plumes of absorbing aerosol (smoke) dispersing from the Central American fires.

  4. The Central American Smoke Event of May 1998. • Surface reflectance derived from the SeaWiFS satellite data for May 14-17 1998. • The TOMS absorbing aerosol index (green, levels 12 and 30) and the visibility-derived extinction coefficients are superimposed as green contours (red, levels 0.2. and 0.4 km-1). • The integration of the 3 data sets indicate that the smoke has been transported northward near the surface.

  5. Hourly PM10 During the Smoke Event Hourly PM10 concentration pattern at six eastern US locations during May 1998.

  6. Surface Ozone Concentration during the Smoke Event Superposition of daily maximum ozone and aerosol extinction maps derived from surface visibility.

  7. Smoke Composition at Big Bend, TX Daily average light scattering coefficient and chemically speciated fine mass concentration for the IMPROVE monitoring site at Big Bend, TX, May 1998.

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