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AIRNow Gateway: Real-time Access to AIRNow Data

AIRNow Gateway: Real-time Access to AIRNow Data. Prepared by: Chris Ovard Dianne Miller Sonoma Technology, Inc. Petaluma, CA Brad Johns U.S. EPA Research Triangle Park, NC Presented to: 2007 National Air Quality Conferences Orlando, FL February 13, 2007. 3075. Goals of AIRNow Gateway.

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AIRNow Gateway: Real-time Access to AIRNow Data

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  1. AIRNow Gateway: Real-time Access to AIRNow Data • Prepared by: • Chris OvardDianne Miller • Sonoma Technology, Inc. • Petaluma, CA • Brad Johns • U.S. EPA • Research Triangle Park, NC • Presented to: • 2007 National Air Quality Conferences • Orlando, FL • February 13, 2007 3075

  2. Goals of AIRNow Gateway • Provide better access to data in AIRNow • Create several types of access • Create a system to track usage and applications using data in AIRNow • Broaden and strengthen the communication of data users • Create redundancy for AIRNow system

  3. Structure/Flow Chart (1 of 2) Hourly AIRNow Data Flow Media Observations Data Decision Makers and Public Data Management Center 120 State and Local Air Agencies Internet Applications Maps and Forecasts Forecasts Data and Forecasts DMC Products Users

  4. Two systems AIRNow Production Gateway System AQ Ozone PM2.5, PM10 CO, SO2, NO, NOx, NO2 EC, OC, BC Trace level others Met Winds Temp RH Pressure Solar Rad. OBS files Forecast files Grib ASCII files WMO BUFR files Web Services Structure/Flow Chart (2 of 2) Data and Forecasts DMC Products Users OBS files Grib file Forecast files One AIRNow system Ozone PM2.5

  5. Products – ASCII Files (1 of 2)

  6. Products – ASCII Files (2 of 2) • Example of reporting area file • issue date | valid date | valid time | time zone | record sequence | data type | primary | reporting area | state code | latitude | longitude | pollutant | AQI value | AQI category | action day | discussion • 02/02/07|02/07/07||CST|5|F|N|Austin|TX|30.2670|-97.7340|PM2.5||Good|No|| • 02/02/07|02/07/07||CST|5|F|N|Austin|TX|30.2670|-97.7340|PM10||Good|No|| • 02/02/07|02/01/07||PST|-1|Y|N|Bakersfield|CA|35.3577|-119.0046|PM10|29|Good|No|| • 02/02/07|02/01/07||PST|-1|Y|N|Bakersfield|CA|35.3577|-119.0046|OZONE|20|Good|No|| • 02/02/07|02/02/07|09:00|PST|0|O|Y|Bakersfield|CA|35.3577|-119.0046|PM2.5|25|Good|No|| • 02/02/07|02/02/07|09:00|PST|0|O|N|Bakersfield|CA|35.3577|-119.0046|OZONE|6|Good|No|| • 02/01/07|02/02/07||PST|1|F|Y|Bakersfield|CA|35.3577|-119.0046|PM2.5|137|Unhealthy for Sensitive Groups|No|| • 02/01/07|02/03/07||PST|2|F|Y|Bakersfield|CA|35.3577|-119.0046|PM2.5||Unhealthy for Sensitive Groups|No|| • 02/01/07|02/04/07||PST|3|F|Y|Bakersfield|CA|35.3577|-119.0046|PM2.5||Unhealthy for Sensitive Groups|No|| • 02/01/07|02/05/07||PST|4|F|Y|Bakersfield|CA|35.3577|-119.0046|PM2.5||Unhealthy for Sensitive Groups|No|| • 02/01/07|02/06/07||PST|5|F|Y|Bakersfield|CA|35.3577|-119.0046|PM2.5||Unhealthy for Sensitive Groups|No|| • 02/02/07|02/01/07||EST|-1|Y|N|Baltimore|MD|39.3010|-76.6110|PM2.5|56|Moderate|No|| • 02/02/07|02/01/07||EST|-1|Y|N|Baltimore|MD|39.3010|-76.6110|OZONE|10|Good|No|| • 02/02/07|02/02/07|12:00|EST|0|O|Y|Baltimore|MD|39.3010|-76.6110|PM2.5|79|Moderate|No||

  7. Products – BUFR Files • WMO standard for storing and transmitting observational data • Designed to achieve efficient exchange and storage of meteorological and oceanographic data • Self-defining, table-driven, and flexible data representation system, especially for large volumes of data • Environment Canada working to extend the capabilities of BUFR to air quality parameters • Provide ozone, PM2.5, and PM10 data • Available on FTP site

  8. Web Services (1 of 2) Software systems designed to support machine-to-machine interaction on the Internet • Two Web services • NEIEN Web service (details in next talk) • Provide access to AIRNow real-time data • AQDE compliant • XML format • Other Web service • Provide access to real-time and forecast data • ASCII format

  9. Media Observations Data Decision Makers and Public Data Management Center 120 State and Local Air Agencies Media Operations Internet Applications Real-time & Forecast data CSV data Maps and Forecasts Forecasts Web pages Real-time data Submittal and retrieval XML data State Nodes Web Services (2 of 2) Data Management Center AIRNow Web Service NEIEN

  10. Web services - Example Input http://gateway.airnowtech.org/airnow/spatial.cfm?Parameter=PM2.5&ReportVal=AQI&DateTime=2007-02-02 Output

  11. Example Uses The Smog Blog University of Iowa

  12. Schedule and Contacts • Schedule • Test in March-April 2007 • Rollout in Summer 2007 • Contacts • EPA: Brad Johns, johns.brad@epa.gov • DMC: Dianne Miller, dianne@sonomatech.com • Chris Ovard, covard@sonomatech.com

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