CAL VAL Conf July2005 NSJ

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Nikisa Jordan(1), Jill Engel-Cox(2,1), Raymond Hoff(1), Kevin McCann(1), Kamonayi Mubenga(1) (1)CREST, Joint Center for Earth Systems Technology, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD, 21250 email: (2)Battelle Memorial Institute, 2101 Wilson Boulevard, Suite 800, Arlington, VA 22201email: Visibility Analysis of Class I Areas Using Multiple Satellite Products & In-Situ Ground Based Measurements


Objective Current methods & tools for studying visibility impairment involve Ground-based back trajectory receptor models Surface point measurements This research offers a new approach of studying the sources of visibility degradation to Class I areas Satellites can provide a better understanding of the pollutant source and, potentially, its concentration in protected sites. Suites of satellite and ground-based measurements were used to provide an enhanced understanding of pollutant sources to protected areas

Data Used: 

Data Used In-Situ IMPROVE surface monitors National Park Service (NPS) Webcam images EPA PM2.5 data was used in addition to IMPROVE aerosol data NOAA Air Resources Laboratory (ARL) (HYbrid Single-Particle Lagrangian Integrated Trajectory) HYSPLIT model Spaceborne NASA MODerate Resolution Imaging Spectroradiometer (MODIS) true color images NASA MODIS Aerosol Optical Depth (AOD) NOAA GOES Aerosol & Smoke Product (GASP) AOD NOAA Hazard Mapping System (HMS) Fire and Smoke Product


* Modified from Source: EPA

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