Description

MAIA_L4_PM_001 is the NASA Multi-Angle Imager for Aerosols (MAIA) level 4 Particulate Matter (PM) Product Version 001. It contains mass concentrations and prediction uncertainties of PM2.5, and the sulfate, nitrate, organic carbon, elemental carbon, and dust components of PM2.5. This information is reported on a spatial grid with 1 km x 1 km sampling.MAIA is an instrument designed to view Earth with a spectropolarimetric camera mounted on a two-axis gimbal. As the instrument flies overhead on the PLATiNO-2 spacecraft, each of MAIA’s target areas is imaged multiple times at different viewing angles by successive repointing of the camera by the gimbal (a mode referred to as step-and-stare), or is imaged by slewing the gimbal slowly as the spacecraft overpasses the target (a mode referred to as sweep). Observations are captured in 14 wavelengths ranging from the ultraviolet to the shortwave-infrared, and polarimetric information is also captured in three of these wavelengths. The goal of MAIA is to improve our understanding of the health effects of different mixtures of particulate air pollution.

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