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Remote Sensing of Atmospheric Aerosols and Its Applications in Public Health Research

Remote Sensing of Atmospheric Aerosols and Its Applications in Public Health Research. Yang Liu Research Fellow, HSPH. PM2.5 Cancels All the Benefits We Get From Health Care?. Increased mortality is equivalent to 1-2 years loss in life expectancy Reduced cardiovascular and pulmonary functions

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Remote Sensing of Atmospheric Aerosols and Its Applications in Public Health Research

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  1. Remote Sensing of Atmospheric Aerosols and Its Applications in Public Health Research Yang Liu Research Fellow, HSPH

  2. PM2.5 Cancels All the Benefits We Get From Health Care? • Increased mortality is equivalent to 1-2 years loss in life expectancy • Reduced cardiovascular and pulmonary functions • Current ground monitoring networks are inadequate to support large health studies

  3. MISR (Terra) 17.6 km resolution ~30,000 pixels in US MODIS (Terra/Aqua) 10 km resolution ~ 90,000 pixels in US Remote Sensing Expands Ground Monitoring Networks GOES • 4 km resolution • ~ 560,000 pixels in US

  4. Satellites Measure PM2.5 Indirectly • Aerosol Optical Thickness (AOT): overall aerosol abundance in the air • Angstrom Exponent: indicator of particle size • Single Scattering Albedo: the darkness of particles • Particle Sphericity

  5. The Applications of Satellite Data in Public Health Studies • Establish the link between AOT and PM2.5 - my poster • Predict PM2.5 information in the study domain - Chris talk • Use predicted PM2.5 information to drive epidemiological studies - work in progress

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