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Proceedings Paper

Application of satellite data for three-dimensional monitoring of PM2.5 formation and transport in San Joaquin Valley, California
Author(s): Rebecca Rosen; Allen Chu; James J. Szykman; Russell DeYoung; J. A. Al-Saadi; Ajith Kaduwela; Carol Bohnenkamp
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Paper Abstract

High resolution (5x5 km2 horizontal resolution) retrievals of aerosol optical depth (AOD) from the MODerate Resolution Imaging Spectroradiometer (MODIS) instruments aboard NASA's Aqua and Terra satellite platforms have been examined. These data products have been compared to coincident, hourly measurements of ground-based PM-2.5 routinely obtained by the San Joaquin Valley Air Pollution Control District (SJV APCD) and California Air Resources Board (CARB) and to airborne light detection and ranging (lidar) aerosol scattering measurements obtained by NASA in July 2003 in San Joaquin Valley (SJV). Comparison of MODIS AOD to ground based PM-2.5 measurement shows significant improvement for the higher resolution MODIS AOD. Lidar aerosol scattering measurements correspond well to MODIS AOD during a variety of atmospheric conditions, and throughout the SJV. Future lidar measurements are proposed to establish a high resolution vertical link between satellite and ground-based measurements during the winter. With the data from these two episodes, we plan to characterize the horizontal, vertical, and temporal distribution of PM-2.5 in SJV and evaluate the need for future intensive ground-based measurement and modeling studies in SJV.

Paper Details

Date Published: 1 September 2006
PDF: 10 pages
Proc. SPIE 6299, Remote Sensing of Aerosol and Chemical Gases, Model Simulation/Assimilation, and Applications to Air Quality, 629904 (1 September 2006); doi: 10.1117/12.681649
Show Author Affiliations
Rebecca Rosen, U.S. Environmental Protection Agency (United States)
Allen Chu, NASA Goddard Space Flight Ctr. (United States)
James J. Szykman, U.S. Environmental Protection Agency (United States)
Russell DeYoung, NASA Langley Research Ctr. (United States)
J. A. Al-Saadi, NASA Langley Research Ctr. (United States)
Ajith Kaduwela, California Air Resources Board (United States)
Carol Bohnenkamp, U.S. Environmental Protection Agency (United States)


Published in SPIE Proceedings Vol. 6299:
Remote Sensing of Aerosol and Chemical Gases, Model Simulation/Assimilation, and Applications to Air Quality
Allen Chu; James Szykman; Shobha Kondragunta, Editor(s)

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