Accession Number:

AD1100702

Title:

Advances in Multiangle Satellite Remote Sensing of Speciated Airborne Particulate Matter and Association with Adverse Health Effects: From MISR to MAIA

Descriptive Note:

Journal Article - Open Access

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC WASHINGTON United States

Report Date:

2018-07-28

Pagination or Media Count:

23.0

Abstract:

Inhalation of airborne particulate matter PM is associated with a variety of adverse health outcomes. However, the relative toxicity of specific PM types - mixtures of particles of varying sizes, shapes, and chemical compositions - is not well understood. A major impediment has been the sparse distribution of surface sensors, especially those measuring speciated PM. Aerosol remote sensing from Earth orbit offers the opportunity to improve our understanding of the health risks associated with different particle types and sources. The Multi-angle Imaging SpectroRadiometer MISR instrument aboard NASAs Terra satellite has demonstrated the value of near-simultaneous observations of backscattered sunlight from multiple view angles for remote sensing of aerosol abundances and particle properties over land. The Multi-Angle Imager for Aerosols MAIA instrument, currently in development, improves on MISRs sensitivity to airborne particle composition by incorporating polarimetry and expanded spectral range. Spatiotemporal regression relationships generated using collocated surface monitor and chemical transport model data will be used to convert fractional aerosol optical depths retrieved from MAIA observations to near-surface PM10, PM2.5, and speciated PM2.5. Health scientists on the MAIA team will use the resulting exposure estimates over globally distributed target areas to investigate the association of particle species with population health effects.

Subject Categories:

  • Personnel Management and Labor Relations
  • Atmospheric Physics
  • Optical Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE