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New Data Release: Global Annual PM2.5 Grids from MODIS, MISR and SeaWiFS AOD, v1 (1998–2012)

A new data release by NASA Socioeconomic Data and Applications Center (WDS Regular Member) offers insights into the extent of global human exposure to fine particulate matter (PM2.5) over more than a decade. It features improved accuracy, a longer time span, and higher spatial resolution than the previous version.

The dataset consists of a series of global grids representing three-year running averages, from 1998–2012, derived from measurements of Aerosol Optical Depth (AOD) from three different NASA instruments: MODIS (Moderate Resolution Imaging Spectroradiometer), MISR (Multi- angle Imaging SpectroRadiometer), and SeaWIFS (Sea-Viewing Wide Field-of-View Sensor). These global grids of estimated PM2.5 surface concentrations are useful for health and environmental research, and have already served as a valuable input to the World Health Organization global burden of disease study.