EE DSS Webinar

From Federation of Earth Science Information Partners

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This series of two webinars will introduce the Exceptional Event Decision Support System (EE DSS) of which purpose is to identify and to document observations that are candidates for exceptional event flagging. The first session will be focused on screening the AQS data for exceedances above "normal" values and to indicate potential smoke or dust causes. The webinars and the associated wiki workspace are provided to give States and EPA Regions the opportunity to ask questions and provide feedback on how to improve the EE DSS. A second webinar is planned for the end of May on the same topics, incorporating feedback from State analysts and pursuing further flagging use cases.

During the first 90-minute webinar we will cover the following topics:

  • The approach of EE DSS to address the clauses required by the Exceptional Event Rule;
  • Datasets (FRM, satellite, model) and tools used in the EE DSS
  • Analysis approach: finding exceedances and those above normal variations;
  • Suggested exceptional (dust or smoke) sources for candidate samples
  • Demonstration of specific flagging examples

The main output of this decision support effort will be a national-scale list of candidate samples (these are not "official") for EE flagging for 2010-2012. Based on this screening, States can identify and select candidate samples for EE flagging, to be submitted to EPA by the July 1, 2013 deadline. The anticipated outcomes and benefits of the EE Decision Support will include: reduction of the effort required by the States for EE flagging as well as a simpler and more uniform EE flag evaluation process by the EPA Regions.

Webinar #1 Outline

Webinar Recording

Neil Frank: Introduction, Background (5 min)

Bob Lebens, State/Region Rep (5 min)

Rudy Husar: EE DSS Approach and Demo (45 mins)

  • Screening Tool - Introduce screening procedure: Exceedances... , Excess to Normal, Some context finding exceedances and those above normal variations; Showing the screening tool: PM2.5, Ozone and PM10
    • How-to cases (NM, ... )
      • Spatial Context
      • Temporal Context
      • Statistical Context
  • Data and Tools to be used in Description/Documentation of Flagged Samples
    • Suggested exceptional (dust or smoke) sources for candidate samples
    • Datasets (FRM, satellite, model) and tools used in the EE DSS, link to console
    • Consoles
    • CATT - Transport Tool
  • Demo of EE DSS Tools

Erin Robinson - Introduction to EE Analyst Community (5 mins)

  • Adding links to EE-relevant resources
  • Explain how to give feedback on screener tool; Feedback on Data; Workspace/community interaction ideas.
    • Wiki discussion pages
    • Email and permission to transfer
    • Weekly drop-in calls for questions/comments?
    • Follow-up survey with questions about stations, submitting flags, ...

Discussion: Interaction/Feedback (30 min)

  • Comments on rule for normal/ How do you define excess of normal?
    • Questions about tools?
    • Question to States: Is there any evidence that that they have meaningful regulatory data that we don’t show in our data system?


Webinar Details and Registration

Topic: Exceptional Event Documentation Training
Host: CAPITA at Washington University, ESIP Federation AQ Workgroup
Date: Tuesday, April 30, 2013
Time: 3:00 pm, Eastern Daylight Time (New York, GMT-04:00)

Session Number: 920 523 275

To register for this training session

Go to and register.

Once you are approved by the host, you will receive a confirmation email with instructions for joining the session.

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