Using Google EarthUsing Google Earth™™ to to Access and Display Air Access and Display Air

Pollution DataPollution Data

1717thth Annual Emissions Inventory ConferenceAnnual Emissions Inventory ConferenceJune 5, 2008June 5, 2008

Joshua Joshua DrukenbrodDrukenbrodU.S. EPAU.S. EPA

Office of Air Quality Planning StandardsOffice of Air Quality Planning Standards

Provide a method to overcome current web Provide a method to overcome current web

page problemspage problems

Provide information in easyProvide information in easy--toto--use formatuse format

Provide direct link to dataProvide direct link to data

BackgroundPurpose

Previous Previous ““highhigh--levellevel”” emissions pages on our web emissions pages on our web sitesite……

Do not provide data in an Do not provide data in an ““easyeasy--toto--useuse”” formatformat

Do not answer some of the Do not answer some of the most common questionsmost common questions

Do not provide the spatial, Do not provide the spatial, temporal, or sectortemporal, or sector--specific specific resolution many people resolution many people needneed

Background

How are we changing that?How are we changing that?

Linking the site directly to the Linking the site directly to the data, providingdata, providing……

National, state, and local National, state, and local summariessummaries

Source category detail not Source category detail not previously availablepreviously available

Geospatial access not Geospatial access not previously availablepreviously available

Background

DemoDemo

SAS/SAS/IntrNetIntrNet –– What is it?What is it?

Component of SAS that enables dynamic access to programs and Component of SAS that enables dynamic access to programs and data via the Webdata via the Web

Anything you can program in SAS can be output to Web Anything you can program in SAS can be output to Web browser/Google Earthbrowser/Google Earth

Users donUsers don’’t need to have SAS or know how to use SASt need to have SAS or know how to use SAS

How it Works

SAS program queries data

Workstation(Web Interface or Google Earth™)

Web Server(SAS/Internet®)

Database (Oracle, Access DB)

Data returnsto program

Web Page/Google Earth links to SAS service

Results displayed inWeb browser or Google Earth placemark

SAS/SAS/IntrNetIntrNet –– How does it work?How does it work?

Program generatesresults

4 3

5

1 2

How it Works

Include methodology for representing Include methodology for representing HAPsHAPsIncorporate nonIncorporate non--point emissions (mobile, nonpoint emissions (mobile, non--mobile, area, etc.) as well as other point sources mobile, area, etc.) as well as other point sources (fires)(fires)Develop maps for multiDevelop maps for multi--pollutant analysispollutant analysisProduce various visual aids for quick Produce various visual aids for quick understanding of emissions at a glanceunderstanding of emissions at a glanceProvide various geographical layers (nonProvide various geographical layers (non--attainment, Class I, tribal, etc)attainment, Class I, tribal, etc)

What’s next?

How do we expect to benefit?How do we expect to benefit?

Easier access to emissions informationEasier access to emissions information

Information in easyInformation in easy--toto--use formatsuse formats

Ability to answer more questionsAbility to answer more questions

Site easier to maintainSite easier to maintain

Efficient use of our data systemsEfficient use of our data systems

Saves staff time and resourcesSaves staff time and resources

Conclusions