Group D1 – AQ & Deposition Characterization for Trends and Accountability

From Earth Science Information Partners (ESIP)

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  • Bret Schichtel
  • David McCabe
  • Ed Lillis
  • Frank Lindsay
  • Gary Lear Co-Chair)
  • Gregory Leptoukh
  • Jerry Johnston
  • Jill Engel-Cox
  • Lewis Weinstock
  • Louis Sweeny
  • Mike Uhl
  • Neil Frank (Co-Chair)
  • Norm Possiel
  • Randy Waite
  • Rich Poirot (Co-Chair)
  • Richard Payton
  • Rudy Husar
  • Sig Christensen
  • Steve Goranson
  • Susan Lundquist
  • Tesh Rao (Notes1)

Session Questions

Current Business Uses and Users

Who are example important business users and what do they want to DO with the data and why? If they were here, what three things would they tell us to focus on now?

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Ad-Hoc Events Analysis – Attract regional interest, Spring-up in near-real time, feed off of (& into forecasts), health advisories. Often Transboundary (special data merging needs). May lead to “Exceptional Event” designation. FASTNET, Smog Blog Would benefit from better faster access to other (than O3 & PM) continuous (hourly) data, like SO2, NO2, NOy, CO, Babs, ASOS, etc.

CAMD Continuing need to show that market-based systems are working to improve effects, CASTNET, etc. Also generator of a unique – but not well-distributed or explored – set of hourly CEMS data for US utilities. Nice set of on-line tools. Projection (& distriburtion) of future emissions is especially challenging here & elsewhere.

Critical Loads (& Exceedances of) – Needs deposition & local environmental data, changes over time as emissions generally decrease. Current Secondary SOx & NOx NAAQS reviews. NADP Ad Hoc CLAD workgroup, NEG/ECP Forest Mapping

EPA Air Quality & Emissions Trends - and Regional, State, Local & International counterparts: Historical emissions data problems, data completeness issues for trend analysis. Jurisdictional and gridded data needed where feasible. Traditional County emissions maps don’t convey much.

Exceptional Events – Identification and Documentation. How exceptional is it? This review might be interesting as a periodic regional group process. Becomes more important with lower standards. Not clear how these should be handled for haze regs. Opportunity for community involvement

Federal Land Managers – Review Permit Applications with unique view to “Air Quality Related Values” including but not limited to visibility, Shenandoah Study, BRAVO, ROMANS, FLAG, IMPROVE participants, AQ and Environmental Data Generators.

NAAQS Reviews - “Policy Relevant Background” (Natural & Non North American contributions) Will become more important as US emissions & Standards decrease and the Developing World develops. “Air Quality Characterization” (at different metrics for potential standards) is needed in more timely manner for new NAAQS review process.

Regional Haze SIPS & Tracking – VIEWS Regs require very formalized definition of baseline and trends. Measurement methods changes can pose problems. Why aren’t worst 20% days improving? RPOs were a good idea but currently inactive with no funding (and SIPs due).

Remote Sensors - NASA, NOAA satellite data needs “ground truth” for calibration. Need units conversion/ harmonization. Can we convert tropospheric OMI NO2 to ppb and ‘auto-compare’ to surface obs? Info content in ratio of total column to surface? What are time fuses for current/future products?

US-Canada Air Quality Agreement - EPA, NOAA, NPS, States, Environment Canada, Provinces, – Subcommittee on Scientific Coop. Progress Reports every 2 years, New PM Annex. See:

Need Emissions, Air Quality, Deposition and environmental data to evaluate progress on agreements on reducing transboundary emissions and effects of Acid Deposition, Ozone, PM – in PEMA region; New England Governors/ Eastern Canadian Premiers - Acid Rain, Mercury, Climate Change Action Plans & Workgroups: Need Data on Deposition, Emissions, Forest Sensitivity Mapping, Aquatic Monitoring, Transboundary PM, Hg, CO2. Special needs & problems merging/mapping data across borders & over time.

Future Business Uses and Users

What trends/needs do you see, or do your users tell you about for future business uses? Where is/could this go, even if all your users are not thinking about it/asking yet?

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IT Issues

What are broad data needs and capabilities to support these uses? What are the gaps and opportunities? What do these needs and capabilities require of US as a community of providers?

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Non-Technical Issues

What are key non-IT requirements and challenges to delivering those needs/capabilities? What do WE need to do as individual resources and as a community? Examples of what we mean by non-IT: Security: that agency policy around access is unclear, or there is no incentive to work through the process for approval to get access. Don't want a discussion of gaps in joint authentication mechanisms; Discovery: that we lack a common way to describe data resources and an incentive to register them. Don't' want a discussion of UDDI vs. FDGC.

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Things not discussed

What have we missed in this discussion? (its ok if this is just a list for parking lot lists)

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Session Notes

Data System Profile

 Charcterization, Trends, Accountability
3D-AQSNot Given
CASTNETMore than 50 CASTNET sites have been collecting data consistently for over 15 years and are used extensively for determining trends in air chemistry and deposition. CASTNET data is used by the EPA as an accountability tool for regulated emissions reductions programs.
CMAQThe predictions from CMAQ simulations for multiple years provide a means to complement air quality measurements for characterizing trends and for evaluating the effectiveness of control programs as part of “accountability” analyses and dynamic evaluation of the model. The US EPA is building a dataset of annual CMAQ predictions which began with model simulations for 2002.
EMFCan handle data from every year, if available. Emissions modeling includes emissions projections, which are also performed from the EMF.
EPA AIRQuest Data WarehouseNot Given
EPA AQSAQS is the basis for EPA’s characterization of air quality effecting the populations and ecosystems, the efficacy of control strategies, and exposure to toxic pollutants – all top level EPA air quality management goals.
ESIPNot Given
GeoWebNot Given
HEIYes, based on existing user community
NARSTOYes, in places and times where data exist.
NASA Atmospheric Science Data CenterAnthropogenic emissions monitoring
RSIGNot Given
Unidata IDD Data SystemNot sure what this means.
VIEWSNot Given