NASA’s Multi-Angle Imager for Aerosols: Addressing the Health Impacts of Particulate Air PollutionAbigail Nastan, David J. Diner, and the MAIA TeamHAQAST5, January 4, 2018
© 2019 California Institute of Technology. Government sponsorship acknowledged.CL #18-7509
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90% of the world’s urban population lives in areas exceeding WHO’s air quality guidelines
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Bobak, CC BY-SA 2.5
Niall McCarthy
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Particulate matter (PM) air pollution is the top environmental risk factor for disease:
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Global Burden of Disease 2016 Risk Factor Collaborators, 2017
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Open question: Which mixtures of PM constituents are most harmful to humans?
4Leaflet, CC BY-SA 3.0
NOMAD, CC BY 2.0 Aqua Mechanical, CC BY 2.0
BC, OC, nitrate
Nitrate
SulfateDust
BC, OCSulfate, nitrate, BC, OC
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Multi-Angle Imager for Aerosols (MAIA)
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MAIA was selected in 2016, with launch in 2022 (to be confirmed) and a baseline mission of 3 years.
MAIA’s science objective is to study the effects of various types of PM on:ü Acute illness and premature
deathü Adverse birth outcomesü Chronic disease
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General Atomics
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MAIA health studies are planned on PM types for ≥10 Primary Target Areas (PTAs)
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The PTA candidates have been chosen based on:ü Populationü PM characteristicsü Surface monitor dataü Health dataü Remote sensing
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The MAIA investigation concept
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MAIA instrument o Calibrated,
georectified image data for retrieval of column-integratedAOD, fractional AOD, particle size.
Surface PM monitorso Used to calibrate the
aerosol-PM relationships.
o MAIA will use existing PM networks and deploy additional speciation monitors.
WRF-Chemo Constrains aerosol
vertical distribution.
o Assists spatial/temporal gap-filling.
Health recordso Obtained from Vital
Statistics, hospitals, HMOs, administrative records, cohorts.
o Used to associate PM exposure with health effects.
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suts
ui, K
VPR
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The MAIA satellite instrument approach combines several remote sensing technologies:
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UV Visible Near-IR Shortwave IRAerosol absorption and
heightFine mode aerosol Coarse mode aerosol
Cloud properties
Multiangular imagingPolarimetry
Multispectral imaging
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Collaborators: Air Quality and Public Health
Sagnik Dey IIT DelhiSina Hashimenassab SCAQMDKembra Howdeshell NIHJohn Langstaff EPAPius Lee NOAAFuyuen Yip CDC
MAIA’s Science Team combines data creators, data users, air quality and public health specialists
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Principal InvestigatorDavid Diner JPL
Co-Investigators: Instrument Characterization
Carol Bruegge JPLRussell Chipman Univ. of ArizonaVeljko Jovanovic JPL
Co-Investigators: PM Exposure, Epidemiology
Michael Brauer Univ. of British ColumbiaMichael Jerrett UCLAYang Liu Emory UniversityBart Ostro UC DavisBeate Ritz UCLAJoel Schwartz Harvard University
Co-Investigators:Aerosol Remote Sensing, Modeling, ValidationLarry Di Girolamo University of IllinoisMichael Garay JPLEdward Hyer Naval Research Lab.Olga Kalashnikova JPLAlexei Lyapustin GSFCRandall Martin Dalhousie UniversityJun Wang University of IowaFeng Xu JPL
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Next steps…• Finalize PTA selections
• Begin secondary target selection
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NASA's Multi-Angle Imager for Aerosols (MAIA): Investigating the Health Effects of Particulate Air PollutionTuesday, January 08, 2019, 07:00 - 08:15 AMNorth 224A
AMS Town Hall
j p l . nasa .gov