Infusing satellite Data into Environmental Applications (IDEA):
R. Bradley PierceNOAA/NESDIS/STAR
PM2.5 forecasting tool hosted at NOAA NESDIS using NASA MODIS (Moderate Resolution Imaging Spectroradiometer), GOES derived aerosol optical depth (AOD) and US EPA AIRNow PM2.4 network.
IDEA is a NASA- EPA-NOAA partnership to improve air quality assessment, management, and prediction by infusing (NASA) satellite measurements into (EPA, NOAA) analyses for public benefit. The IDEA web-based analysis, forecast, and visualization system is hosted at the NOAA Center of Satellite Applications and Research (STAR)
Objective: Near-real-time product for State and Local Air Quality Forecasters
Goal: Improve accuracy of next day PM2.5 AQI forecast during large aerosol events
NASA MODIS - NOAA GOES- EPA AIRNow
Data Fusion Improving EPA Air Quality Index (PM 2.5) Forecasting
http://www.star.nesdis.noaa.gov/smcd/spb/aq/index.php
September 5, 2003
September 10
Can satellite data be used in near-real-time to provide synoptic-scale features for air quality forecast?- PM2.5 levels reached Moderate to Unhealthy for Sensitive Groups on Sept. 8th - 12th, 2003 in the Mid-west.
Operational Use of Satellite Data for Air Quality
Sensitive groups should avoid all physical activity outdoors; everyone else should avoid prolonged or heavy exertion
Sensitive groups should avoid prolonged or heavy exertion; everyone else should reduce prolonged or heavy exertion
Sensitive groups should reduce prolonged or heavy exertion
Unusually sensitive people should consider reducing prolonged or heavy exertion
None
Cautionary Statements
201-300
151-200
101-150
51-100
0-50
IndexValues
PM10
(ug/m3)
PM2.5
(ug/m3)
Category
355-424
255-354
155-254
55-154
0-54
150.5-250.4
65.5-150.4
40.5-65.4
15.5-40.4
0-15.4Good
Very Unhealthy
Unhealthy
Unhealthy for Sensitive Groups
Moderate
Source: US EPA, 1997
There are six sections to the site.
For each section you can selectTerra, Aqua or GASP data.
GASP is the GOES aerosol productGASP is a geosynchronous satellite.Although it provides high temporalsampling the spectral range,spatial resolution andcalibration accuracy are not asgood as what MODIS provides.
The Regional Plotssection allows you to zoom in on AOD in anyone of the U.S. EPARegions.
Prior to selecting the zoomregion you can obtainimages, animations and kmlfiles for the entire U.S.
The Regional Plotssection allows you to zoom in on AOD
The 48 Hour Trajectory Panel
Animated trajectories of aerosol with winds Verification plot of AOD 48 hours after start
Three day composite historyof AOD.
Also available areWinds, Fire and PM 2.5 ground measurements.
PM Estimation from AOD
This is a composite of estimate of ground level AOD using MODISdata only
National Correlation MapOf PM and AOD
A 60 day correlation ofMODIS AOD and groundlevel surface measurements(1 Hr) of PM 2.5
Time Series Plots
Selecting this section brings up a map of theU.S.
Click on any state tobring up a list (top of page)showing all available groundsites with data.
For a description of how to interpret the timeseries plots see the tutorial presentation onthe IDEA website.
http://www.star.nesdis.noaa.gov/smcd/spb/aq/index.php?plot_type=tutorial&tut_type=sitCorr&tut_number=0
http://www.star.nesdis.noaa.gov/smcd/spb/aq/index.php?plot_type=tutorial
IDEA Tutorials
http://www.star.nesdis.noaa.gov/smcd/spb/aq/
IDEA Homepage
MODIS AOD:color contours, WF_ABBA Fire pixels: purple dots
www.hpc.ncep.noaa.govMODIS Aerosol Optical Depth September 4, 2003
Clean air advection behind cold front
Visible image
Aerosol Optical Depth
Pacific NW Wildfires
MODIS AOD: color contours WF_ABBA Fire pixels: purple dots
www.hpc.ncep.noaa.gov
MODIS AOD Trajectory Initialization, Sept. 7, 2003
Elongation of high AOD along trough axisInitialization of
Trajectories to predict movement of high AOD Merging high
pressure systems
MODIS AOD: color contoursWF_ABBA Fire pixels: purple dots
www.hpc.ncep.noaa.gov24hr Trajectory Forecast with current MODIS AOD September 8, 2003
Development of high pressure systems over Canada and central US
MODIS AOD: color contours WF_ABBA Fire pixels: purple dots
www.hpc.ncep.noaa.gov
Elevated AOD entrained into merged high pressure system
48hr Trajectory Forecast with current MODIS AODSeptember 9, 2003
MODIS AOD Sep. 08