Past Event

BASC Spring 2018 Meeting

Board Meeting
May 21, 2018 - May 22, 2018

Location: Keck Center of the National Academies
500 Fifth St. NW Washington DC 20001


May 21-22, 2018
Keck Center, Room 208
500 Fifth Street NW, Washington, DC

MONDAY, MAY 21, 2018

8:30 - 10:15 AM: Closed session

Open Session

10:30 AM: Welcome and introductions - A. R. Ravishankara, BASC Chair

10:35 AM: The Future of Boundary Layer Observing Workshop - Shuyi Chen, BASC Vice Chair; Lauren Everett, Program Officer

10: 50 AM: Atmospheric Sciences and Climate dimensions of Thriving on Our Changing Planet (ESAS) - Bill Gail, ESAS Co-Chair

11:15 AM: Discussion: Integrated Earth System Modeling and Prediction, Science and Applications

Noon: Lunch

Scoping Session: Background Ozone in the Context of the National Ambient Air Quality Standards

Session Goals:
  1. Provide an understanding of "background pollution" including what it is and how to define it;
  2. Provide an overview of the NAAQS policy framework and how "background pollution" is factored into standard setting and implementation;
  3. Discuss current approaches to quantify background ozone concentrations: e.g., why estimates rely on models; the role of observations; the range of atmospheric processes involved over different temporal and spatial scales; how they connect to weather and climate;
  4. Discuss which aspects of characterizing background ozone we understand best and which aspects we understand least;
  5. Consider how one might evaluate "that EPA?s applicable modeling tools are sufficiently accurate for their intended application" (see Section 5bi in the April 12, 2018 presidential memo to the EPA Administrator);
  6. Consider how an Academies study/workshop might take stock of the recent studies and assessments and help with developing plans to advance understanding and capabilities, lowering uncertainties, and better connecting models with observations.
1:00 PM: Introduction and Goals for the Session - A.R. Ravishankara, BASC Chair

1:05 PM: Overview: What is Background Ozone? - Arlene Fiore, Columbia LDEO

1:30 PM: Setting the Stage: Background Distributions, Spatial/Temporal Variations of Ozone
  • Dan Jaffe, University of Washington
  • Terry Keating, EPA Office of Research and Development
2:15 PM: Observational and Model Estimates of Ozone Sources beyond the control of specific areas in the US: Spatial and Temporal Variability, Connections to Climate, and Influence on High-Ozone Days
  • Andy Langford, NOAA ESRL (remote)
  • Russ Dickerson, University of Maryland
  • Meiyun Lin, NOAA GFDL (remote)
  • Ryan Stauffer, NASA GSFC
  • Emily Fischer, Colorado State University (remote)
3:15 PM: Break

3:30 PM: Policy Context: Accounting for Background Ozone in the Implementation of the National Ambient Air Quality Standards for Ozone Including its Various Source Contributions on Exceedance Days
  • Tom Moore, Western States Air Resources Council
  • Barron Henderson, EPA Office of Air and Radiation (remote)
  • Cathe Kalisz, American Petroleum Institute
4:30 PM: Discussion - Moderator: Arlene Fiore
  • What are the key take-away messages?
  • Is there a role for an Academies study or workshop?
5:30 PM: Session Adjourns

TUESDAY, MAY 22, 2018

9:00 - 10:00 AM: Closed session

Open Session

10:00 AM: Conversation with the World Climate Research Programme (WCRP)
  • Guy Brasseur, Chair of the WCRP Joint Science Committee (remote)
  • Michel Rixen, WCRP Officer in Charge (remote)
11:00 AM: Project updates & plans

Noon: Lunch, open session adjourns

1:00 - 3:00 PM: Closed session

3:00 PM: Meeting adjourns