SPARTAN: a global network to evaluate and enhance satellite-based estimates of ground-level particulate matter for global health applications
Atmospheric Measurement Techniques, vol. 8, no. 1, 2015, pp. 505--521
Abstract
Ground-based observations are insufficient to assess global human exposure to fine particulate matter (PM2.5). Satellite remote sensing offers a promising solution, but limitations exist in accurately inferring ground-level PM2.5 from satellite observations. The Surface PARTiculate mAtter Network (SPARTAN) addresses this by establishing a global network of ground-level monitors collocated with ground-based sun photometers that measure AOD. SPARTAN monitors hourly PM2.5 concentrations and provides data on mass, black carbon, water-soluble ions, and metals. This network will improve the accuracy of satellite-based PM2.5 estimates, which are crucial for assessing the health effects of aerosols. Initial measurements suggest that the ratio of AOD to ground-level PM2.5 is influenced by the vertical aerosol profile and mass scattering efficiency.