1 / 15

April, 2000

DRAFT. The Impact of the 1998 Central American Smoke on the Atmospheric Environment of Eastern North America. by:.

remy
Download Presentation

April, 2000

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. DRAFT The Impact of the 1998 Central American Smoke on the Atmospheric Environment of Eastern North America by: R. B. Husar, B. A. Schichtel, S. R. Falke, F. Li, W. E. Wilson, J. Pinto, W. C. Malm, D. G. Fox, G. C. Feldman, C. McClain, N. Kuring, B. N. Holben, E. F. Vermote, J. R. Herman, C. D. Elvidge April, 2000 PowerPoint: http://capita.wustl.edu/Central-America/reports/JGR/SmokeImpactJGR.htm Paper: http://capita.wustl.edu/Central-America/reports/JGR/SmokeImpactJGRDoc.htm

  2. TOMS Absorbing Aerosol Index May 4 May 5 May 6 May 7 May 8 Daily map of smoke aerosol (May 4-28, 1998) from the Central American fires based on TOMS absorbing aerosol index. (levels 12 and 27) May 9 May 10 May 11 May 12 May 13 May 14 May 15 May 16 May 17 May 18 May 19 May 20 May 21 May 22 May 23 May 24 May 25 May 26 May 27 May 28

  3. Surface reflectance derived from the SeaWiFS satellite data for May 14-17 1998. The spectral reflectance data were rendered as a "true color" digital image by combining the blue (0.412 m), green (0.550 m), and red (0.670 m) channels. 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). SeaWiFS, TOMS and Surface Extinction

  4. 3D SeaWiFS May 14, 1998

  5. SeaWiFS, TOMS, Bext May 14, 1998

  6. SeaWiFS, TOMS, Bext May 16, 1998

  7. a b

  8. Average Excess TOMS Index for Mar., Apr., May 1998 Excess TOMS absorbing aerosol index averaged for March, April, May 1998 compared to 1999. The insert depicts the 1998 smoke impact from a global perspective.

  9. Surface Ozone Concentration Superposition of daily maximum ozone and aerosol extinction maps derived from surface visibility.

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

  11. PM10 and Bext a) Hourly PM10 mass concentration data at Brownsville, TX, collected by Texas ??? b) Hourly extinction coefficients at five visibility monitoring stations in Eastern Missouri and Illinois and PM10 concentrations at St. Louis during May 14-17, 1998.

  12. 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.

  13. Aerosol Optical Depth and Solar Radiation Figure 8. Spectral aerosol optical thickness measured by the AERONET network at Bondville, IL. Figure 9. Solar radiation data derived from Shadowband Radiometer Network at Big Bend, TX.

  14. SeaWiFS Surface Reflectance on Clear and Smoky Days Spectral reflectance data derived from the SeaWiFS sensor on May 15, 1998; b) Excess aerosol backscattering over water.

More Related