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Smoke Characterization from MODIS Imagery. Buck Sharpton Kevin Engle GINA/ION University of Alaska Fairbanks. ION Node. Focus on real-time satellite reception – many passes per day Polar-orbiting satellites NOAA AVHRR MODIS (Terra & Aqua) SeaWiFS* GLI (ADEOS II) - PowerPoint PPT Presentation
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Smoke Characterization Smoke Characterization from MODIS Imageryfrom MODIS Imagery
Buck SharptonBuck Sharpton
Kevin EngleKevin Engle
GINA/ION GINA/ION
University of Alaska FairbanksUniversity of Alaska Fairbanks
Buck SharptonBuck Sharpton
Kevin EngleKevin Engle
GINA/ION GINA/ION
University of Alaska FairbanksUniversity of Alaska Fairbanks
ION Node
• Focus on real-time Focus on real-time satellite reception – many satellite reception – many passes per daypasses per day
• Polar-orbiting satellitesPolar-orbiting satellites– NOAA AVHRRNOAA AVHRR– MODIS (Terra & Aqua)MODIS (Terra & Aqua)– SeaWiFS*SeaWiFS*– GLI (ADEOS II)GLI (ADEOS II)
• Basic and custom product Basic and custom product generation and generation and distribution distribution
• AmericaViewAmericaView
• Focus on real-time Focus on real-time satellite reception – many satellite reception – many passes per daypasses per day
• Polar-orbiting satellitesPolar-orbiting satellites– NOAA AVHRRNOAA AVHRR– MODIS (Terra & Aqua)MODIS (Terra & Aqua)– SeaWiFS*SeaWiFS*– GLI (ADEOS II)GLI (ADEOS II)
• Basic and custom product Basic and custom product generation and generation and distribution distribution
• AmericaViewAmericaView*Distributed by NASA/GSFC
Early Detection and Early Detection and Characterization of Boreal WildfiresCharacterization of Boreal Wildfires
Early Detection and Early Detection and Characterization of Boreal WildfiresCharacterization of Boreal Wildfires
• Operational:Operational:– Supply Fire Detection/Management Products Supply Fire Detection/Management Products
to Alaska Fire Service, Tanana Chiefsto Alaska Fire Service, Tanana Chiefs– Developing Smoke Characterization Developing Smoke Characterization
Products (Smoke Health Index)Products (Smoke Health Index)
• Research:Research:– Smoke properties (fuel, fire, environment)Smoke properties (fuel, fire, environment)– Carbon cycling Carbon cycling
• Operational:Operational:– Supply Fire Detection/Management Products Supply Fire Detection/Management Products
to Alaska Fire Service, Tanana Chiefsto Alaska Fire Service, Tanana Chiefs– Developing Smoke Characterization Developing Smoke Characterization
Products (Smoke Health Index)Products (Smoke Health Index)
• Research:Research:– Smoke properties (fuel, fire, environment)Smoke properties (fuel, fire, environment)– Carbon cycling Carbon cycling
Smoke Characterization: ApproachSmoke Characterization: ApproachSmoke Characterization: ApproachSmoke Characterization: Approach
• Refine & Extend MODIS AOT AlgorithmRefine & Extend MODIS AOT Algorithm– For use over bright, variable surfacesFor use over bright, variable surfaces– To estimate smoke density, smoke height, particle size To estimate smoke density, smoke height, particle size
distribution.distribution.
• Validate using field/laboratory instrumentsValidate using field/laboratory instruments• Generate Smoke-Health Index MapGenerate Smoke-Health Index Map
– Translate smoke concentration into health riskTranslate smoke concentration into health risk– Add information on particulates and associated gases Add information on particulates and associated gases
and aerosols of concernand aerosols of concern– Updateable and web-deliverableUpdateable and web-deliverable
• Refine & Extend MODIS AOT AlgorithmRefine & Extend MODIS AOT Algorithm– For use over bright, variable surfacesFor use over bright, variable surfaces– To estimate smoke density, smoke height, particle size To estimate smoke density, smoke height, particle size
distribution.distribution.
• Validate using field/laboratory instrumentsValidate using field/laboratory instruments• Generate Smoke-Health Index MapGenerate Smoke-Health Index Map
– Translate smoke concentration into health riskTranslate smoke concentration into health risk– Add information on particulates and associated gases Add information on particulates and associated gases
and aerosols of concernand aerosols of concern– Updateable and web-deliverableUpdateable and web-deliverable
Smoke Characterization: Smoke Characterization: AdvantagesAdvantages
Smoke Characterization: Smoke Characterization: AdvantagesAdvantages
• Real-Time MODIS, AVHRR, GLI receptionReal-Time MODIS, AVHRR, GLI reception– Up to 16 passes over station per day (Aqua, Terra)Up to 16 passes over station per day (Aqua, Terra)– Identical viewing geometry daily per instrument.Identical viewing geometry daily per instrument.
• An active fire season each yearAn active fire season each year• Partnerships with Fire Management AgenciesPartnerships with Fire Management Agencies• ExpertiseExpertise• Field sites and Laboratory EquipmentField sites and Laboratory Equipment
• Real-Time MODIS, AVHRR, GLI receptionReal-Time MODIS, AVHRR, GLI reception– Up to 16 passes over station per day (Aqua, Terra)Up to 16 passes over station per day (Aqua, Terra)– Identical viewing geometry daily per instrument.Identical viewing geometry daily per instrument.
• An active fire season each yearAn active fire season each year• Partnerships with Fire Management AgenciesPartnerships with Fire Management Agencies• ExpertiseExpertise• Field sites and Laboratory EquipmentField sites and Laboratory Equipment
MODIS Smoke SceneMODIS Smoke Scene
Clear Sky SceneClear Sky Scene
Band math (normalization)
Scene with surface Scene with surface reflectances removedreflectances removed
Aerosol reflectances mixed with surface reflectances
Surface reflectances only
Yields
Aerosol Optical Thickness
Health-Risk SceneHealth-Risk SceneBased on translation schema in wide use by Health Officials
Convert AOT to Smoke Density
Smoke Air Quality Index
Steps:Steps:• Test, refine MODIS AOTTest, refine MODIS AOT
• Field/laboratory measurementsField/laboratory measurements• Theoretical approachesTheoretical approaches• Convert AOT to Health RiskConvert AOT to Health Risk
• ValidateValidate• Field monitoringField monitoring• Client feedbackClient feedback
• DeliverDeliver• Updateable several times dailyUpdateable several times daily• Deliverable through InternetDeliverable through Internet• Graphical, flexible, usefulGraphical, flexible, useful
Smoke Air Quality Index
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