J31 Data Workshop 9-10Mar05 Validation of Satellite Aerosol Optical Depth by AATS-14 during ICARTT 2004 NASA Ames Airborne Sunphotometer Team Presented by John Livingston SRI International Jetstream-31 (J31) in INTEX-ITCT Table of J31/satellite coincidences during ITCT 2004 ICARTT 2004 AATS-14/MODIS Coincidences Eight cases w/MODIS data July 12, 16, 17, 21, 22, 23; August 2, 8 ICARTT 2004 AATS-14/MISR Coincidences Four events July 20, 22, 29; August 7 MISR 20 July Moderate AODs Limited MISR data J31 descent J31 ascent Terra overpass: 1543 UT Note: V16 MISR AODs > 0 are available only within blue box shown in earlier slide. These AATS-14 data are means for all AATS data points shown in previous slide. MISR V16 Note: These AATS-14 means only include those data points within the MISR blue box, as shown in earlier slide. MISR V16 J31 descent J31 ascent MISR 29 July Moderate/large AODs AOD gradient J31 ascent J31 descent Terra overpass: 1537 UT AOD gradient (AATS) MISR V15 MISR V16 J31 ascent J31 descent MISR 7 Aug Small AODs AOD gradient DC-8 rendezvous J31 ascent Terra overpass: 1531 UT small AOD gradient (AATS) MISR V15 MISR V16 MISR 22 July Moderate/large AODs small AOD gradient along J31 flight track but outside of MISR grid cell locations J31 ascent J31 descent MISR grids Terra overpass: 1531 UT small AOD gradient (AATS) MISR V15 MISR V16 22 July: AATS/MISR/MODIS small AOD gradient (AATS) MODIS ICARTT 2004 AATS-14/MODIS Coincidences Eight cases w/MODIS data July 12, 16, 17, 21, 22, 23; August 2, 8 MISR data also available for 22 July case MODIS 12 July Moderate AODs AOD gradient along portion of J31 track flight direction J31 descent J31 ascent AOD gradient (AATS) MODIS 16 July Moderate AODs Limited AATS retrievals MODIS 17 July Small AODs Limited near surface AATS AOD retrievals MODIS 21 July Moderate AODs AOD gradient along portion of J31 track flight direction J31 descent J31 ascent AOD gradient (AATS) MODIS 23 July AOD gradient Large maximum AODs flight direction AOD gradient (AATS) MODIS 2 Aug Large AOD gradient Moderate maximum AODs flight direction J31 descent AOD gradient (AATS) flight direction MODIS 8 Aug J31 short longitudinal transect Small AODs AOD gradient near eastern end of track