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Allen Chu & MODIS Aerosol Team MODIS Atmosphere Retreat Meeting St. Michaels, Maryland

Evaluation of MODIS Aerosol Products in ACE-Asia. Allen Chu & MODIS Aerosol Team MODIS Atmosphere Retreat Meeting St. Michaels, Maryland March 17, 2003. Courtesy: NSF. Allen Chu/NASA GSFC. 60. 40. b. 2. a. 30. 40. %. c. %. 20. 3. 20. 10. 1. a. 0. 0. b. c. 1.

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Allen Chu & MODIS Aerosol Team MODIS Atmosphere Retreat Meeting St. Michaels, Maryland

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  1. Evaluation of MODIS Aerosol Products in ACE-Asia Allen Chu & MODIS Aerosol Team MODIS Atmosphere Retreat Meeting St. Michaels, Maryland March 17, 2003

  2. Courtesy: NSF Allen Chu/NASA GSFC

  3. 60 40 b 2 a 30 40 % c % 20 3 20 10 1 a 0 0 b c 1 Dun-Huang Gobi Desert Beijing 2 Taklimakan Desert Seoul Tibetan Plateau 3 Himalaya March 24- May 10, 2001 ACE-Asia EOS/MODLAND Product Sun et al. 2001, JGR, 10,325-33

  4. The birth of “perfect dust storm” captured by GMS-5 geosatationary satellite 1 2 3

  5. “The Perfect Dust Storm” captured by MODIS on April 7, 2001

  6. “Perfect dust storm” Approaching After A few centimeter accumulation of dust on the surface is very common in areas under storm paths. It is estimated that 200-300 million tons of sand are being removed every year. Courtesy: Dr. Zev Levin

  7. Arizona Grand Canyon

  8. Dusty weather from perfect dust storm California Coast New Jersey/New York Coast Arriving at California /Moving out of US April 14, 2001 April 22, 2001

  9. Trails of “perfect dust storm” captured by Micropulse Lidar 4/9/01 Sea of Japan 4/14/01 NASA/GSFC Dust Layer Dust Layer

  10. Dust/Pollution/Biomass burning in East Asia spring summer autumn winter

  11. Jan. July Feb. Aug. Sep. Mar. Apr. Oct. May Nov. June Dec.

  12. Comparison between MODIS and AERONET derived AOD in Korea - ACE-Asia

  13. Comparison between MODIS and AERONET derived AOD in Japan - ACE-Asia

  14. Flight paths of C-130 and Twin Otter in ACE-Asia

  15. MODIS Validation with AATS onboard C-130 and Twin-Otter in ACE-Asia Q=151° L L Q=113° Q=156° Q=111° Q=144° Q=114° Q=148° : MODIS Q=111° : AATS L h=0.80 (3.3,8) h=0.54 (3,9) h=0.70 (1,9) h=0.47 (3,9) h=0.83 h=0.79 h=0.75 (2,8) (1.5,6) (1,8) h=0.67 (2.5,7.5)

  16. MODIS Validation with Sunphotometer/shadowband radiometer onboard RV Ron Brown in ACE-Asia Q=111° Q=151° Q=113° h=0.73 h=0.80 h=0.82 (2,7.5) (3.5,8) (2,6) Q=152° Q=141° Q=108° h=0.74 h=0.44 h=0.83 (2.3,8.6) (2.6,8.6) (3,9) Q=155° Q=151° Q=152° h=0.71 h=0.79 h=0.86 (2,8) (1,9) (1.2,8.2)

  17. MODIS Validation in ACE-Asia

  18. MODIS True Color Dust and Biomass Burning Aerosols Dust April 13, 2001 Biomass Burnning Dust TOMS Aerosol Index Biomass Burnning MODIS Aerosol Optical Depth

  19. AOD & fine-mode fraction

  20. Correlations by US EPA Region for June PM event (Region 5-IL, IN, MI, MN, OH, WI & Region 3-DC, DE, MD, PA, VA, WV)

  21. PM25 24 hr. average Initial Time Series Analysis of Hourly PM2.5 Concentrations and Coincident MODIS pixel

  22. Initial Time Series Analysis of Hourly PM2.5 Concentrations and Coincident MODIS pixel PM25 24 hr. average

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