The NASA AQAST supports two types of projects:
All projects have a focus on short-term deliverables designed to best assist the needs of our air quality management.partners. Scroll down this page for the list of all our ongoing projects. You can also search quickly for specific projects, investigators, themes, or air quality agency partners by using the AQAST customized search engine at left (powered by Google)
A Public Research Testbed for Assimilating Remote Sensing Products in Operational Air Quality Forecasting. PI: Greg Carmichael (U. Iowa). Co-I's: Scott Spak, (U. Iowa). AQ Mgmt Partners: Joe Hoch (Wisc DNR); Mike Koerber (LADCO); Matthew Johnson (Iowa DNR). Outcomes: (1) Operational state-of-the-science regional fine particle forecast for a region with urban 24- hour NAAQS exceedances throughout the year and no current forecast system; (2) AQ managers from 10-15 states accustomed to using model guidance in forecasting and action-days decisions for PM2.5; (3) Assessment of the impacts of satellite land cover, meteorology, and atmospheric composition products on model performance for regulatory standards; (4) Establishment of a public testbed and benchmark performance archive; (5) Evaluation of region-specific emission scenarios reduce winter PM2.5 in the Midwest; (6) Guidelines, needs assessment and implemented examples of a rapidly deployable urban- scale exposure nowcasting system for air pollution events.
Inverse modeling of NOx emissions over Texas using OMI NO2 data; PI: Daniel Cohan (Rice U.); Co-I's: Wei Tang and Ben Lash (Rice U.); AQ Mgmt Partners: Mark Estes (TCEQ), Jim MacKay (TCEQ), Lok Lamsal (NASA), Jesse Bash (US EPA); Outcomes: Better understanding of the strengths and limitations of using OMI-based inverse modeling of NO2 to adjust emissions inventories used in regulatory attainment modeling.
Analysis and Modeling with OMI, MODIS, and DISCOVER-AQ data; PI: Russell Dickerson (U. Maryland); Co-I's: T. Canty, D. Anderson, R. Salawitch, & K. Vinnikov (UMD); N. Krotkov & Ken Pickering (NASA/GSFC); AQ Mgmt Partners: Tad Aburn (MDE); John Sherwell (MDNR); Outcomes: (1) Improvements in CAMx, CB05 and CMAQ for the State Implementation Plan (SIP) and Weight of Evidence (WoE) for Maryland and surrounding States; (2) Estimates of interstate transport of ozone and precursors; (3) Improved estimates of emissions from American (east coast) cities.
Develop an Air Quality User's Guide: Satellite Data for Air Quality Monitoring: Examples of Applications, Answers to FAQs, and Common Mistakes to Avoid; PI: Bryan Duncan (NASA/GSFC); Co-I's: Yasuko Yoshida (SSAI and NASA/GSFC), numerous AQAST members; AQ mgmt partners: Jennifer Hains and other employees of the Maryland Dept. of the Environment; Outcomes: Facilitate the use of satellite data by the AQ community by demystifying the data and showing the utility of the data for AQ applications.
Addressing Western U.S. AQ Issues through Modeling, Satellites and Field Experiments; PI: David Edwards (NCAR); Co-I: Gabriele Pfister (NCAR); AQ Mgmt Partners: Gordon Pierce (CDPHE), Patrick Reddy (CDPHE), Gail Tonnessen (EPA Region 8); Outcomes: (1) Improved understanding and characterization of Front Range Summertime Ozone; (2) Collaboration and exchange of tools and information with local and regional AQ managers.
Processes influencing the daily-to-decadal variability of U.S. background ozone levels; PI: Arlene Fiore (Columbia/LDEO); Co-I's: Meiyun Lin (Princeton), Mae Gustin and Rebekka Fine (both University of Nevada, Reno); AQ Mgmt Partners: Joe Pinto (EPA/NCEA), Pat Dolwick, (EPA/OAR) Terry Keating (EPA/OAR/OPAR), Gail Tonnesen (EPA Region 8), Adele Malone and Rob Bamford (both Nevada Division of Environmental Protection); Outcomes: (1) Better estimates of the balance between domestic versus international emission controls needed to attain ever-tightening standards on daily to decadal time scales; (2) Enhanced knowledge needed to develop criteria to define exceptional events; (3) Determine potential for space-based products to indicate background enhancements to surface O3 over the Western United States with a few days lead time.
Oversampling OMI SO2 to identify locations and long-term trends in large point sources in the Midwest; PI's: Jack Fishman and Benjamin De Foy (Saint Louis University); AQ Mgmt Partners: Lake Michigan Air Directors Consortium (LADCO); Outcomes: Publication on SO2 sources and lifetime.
Ozone Garden Project and Coordination of Outreach Activities for AQAST; PI's: Jack Fishman and Benjamin De Foy (Saint Louis University); Education/Outreach Partners: Dr. Cindy Encarnacion, (Saint Louis Science Center), Sheila Voss, (Missouri Botanical Garden); Outcomes: A comprehensive plan that can be used as foundation to coordinate education/outreach activities among the members of AQAST; Outcomes: (1) Maintain garden and collect data quantifying follar injury to plants; (2) Analyze follar injury and ozone data.
Integration of climate impacts into design of ozone and aerosol control strategies; PI: Daven Henze (CU Boulder); Co-I's: Jana Milford (CU Boulder), Drew Shindell (GISS), Kevin Bowman (JPL), Rob Pinder (EPA); AQ Mgmt Partners: Erika Sasser (EPA/OAQPS), Susan Anenberg (EPA/OAQPS); Outcomes: (1) Quantify the per-country radiative forcing from black carbon to inform EPA involvement in North American strategy for black carbon reduction; (2) Allow OAQPS to assess the radiative forcing impacts of emissions scenarios designed for achieving PM NAAQS as part of their Regulatory Impact Analysis (RIA).
Atmospheric processes affecting emission sector contributions to O3 and PM2.5 episodes; PI: Tracey Holloway (U. Wisconsin-Madison); Co-I's: Erica Scotty, Alexandra Karambelas, and Steve Ackerman (all U. of WisconsinMadison); AQ Mgmt Partners: Bart Sponseller and Joseph Hoch, (Wisc. DNR); Terry Keating (U.S. EPA); Rob Kaleel (LADCO); Outcomes: (1) Improved SIP planning for LADCO states on ozone and particulate matter; (2) Development of methods and data sources to support satellite analysis with CMAQ
Aerosol data products for assimilation into air quality models; PI: Edward Hyer (NRL); Co-I's: Jianglong Zhang (UND); AQ Mgmt Partners: NOAA; NOAA/NWS/NCEP, currently seeking other connections; Outcomes: (1) Improved assimilation-grade AOD data available for regional modeling applications; (2) Assimilation grade AOD refinements designed to assist NOAA air quality modeling efforts.
Improved use of satellite fire observations for reanalysis of air quality events; PI: Edward Hyer (NRL); Co-I's: Jun Wang (U. Nebraska); AQ Mgmt Partners: Jeff McQueen (NOAA/NWS/NCEP), Ho-Chung Huang (NOAA/NWS/NCEP); Outcomes: (1) Improved daily time series of fire activity for air quality studies; (2) Improved description of diurnal variation in fires for numerical modeling of smoke.
Background ozone in the contiguous US and use of formaldehyde observations from space to better understand the factors controlling biogenic VOC emissions; PI: Daniel Jacob (Harvard); Other Personnel: Katie Travis and Lei Zhu (Harvard); AQ Mgmt Partners: EPA/NCEA; EPA/ORD; Outcomes: (1) Improved background ozone estimates to support future revision of the ozone NAAQS;
(2) Better understanding of the variability of biogenic VOC emissions on interannual and longer time scales, and of the ability of satellite HCHO observations to constrain this
Evaluation of satellite-based wild and prescribed fires products in southeastern US; PI: Yang Liu (Emory U.); AQ Mgmt Partners: Di Tian (GAEPD); Outcomes: (1) Improved biomass burning emission inventory in this region; (2) Improved accuracy of CMAQ simulations in the Southeast.
Estimating the climate penalty for U.S. ozone air quality: Rapid calculation across models and scenarios; PI: Loretta J. Mickley (Harvard); AQ Mgmt Partners: Susan C. Anenberg and Carey Jang (EPA, Office of Air Quality Planning and Standards); Outcomes: The tool that we propose to develop will allow AQ managers to readily calculate the climate change penalty for regional ozone air quality.
Improving the modeling of the physical atmosphere for SIPs and air quality forecasting; PI: Richard McNider (U. Alabama in Huntsville); Co-I's: Arastoo Biazar, (U. Alabama in Huntsville); AQ Mgmt Partners: Bright Dornblauser (TCEQ), Jon Pleim (EPA/NERL); Outcomes: (1) Improved physical modeling in future ozone SIP plans; (2) Improved confidence in selected control strategies.
Predicting air quality under fire impacts using an operational air quality forecasting system; PI: Ted Russell (Georgia Tech); Co-I's: Yongtao Hu (Georgia Tech), M. Talat Odman (Georgia Tech); AQ Mgmt Partners: Jim Boylan (GAEPD) Susan Zimmer-Dauphinee (GAEPD), Alan Dozier (GFC); Outcomes: Operational ozone and PM2.5 forecasting products with enhancements that can provide guidance on local agencies' efforts to provide accurate public warnings ahead of ozone and PM episodes.
Derivation of point-source emission estimates from satellite retrievals; PI: David Streets (ANL); Other Personnel: Zifeng Lu (ANL), Ben de Foy, (Saint Louis U); Nick Krotkov (NASA/GSFC); AQ Mgmt Partners: Marc Houyoux, Carey Jang, Jeremy Schreifels (all U.S. EPA); Outcomes: The results will have benefits for AQ managers to cross-check power plant emissions (or their operation) from spaceborne observations. If additional emission regulations were to be implemented in the future, AQ managers would also be able to monitor the actual operation of emission control devices. Both domestic and international EPA activities will benefit.
Statistical Air Quality Forecast Support during DISCOVER-AQ; PI: Anne Thompson (Penn State); Co-I's: Gregory Garner, Penn State; AQ Mgmt Partners: Laura Landry (MDE); Outcomes: We will bring newly developed statistical models derived specifically for predicting air quality at sites within the DISCOVER-AQ region of interest These forecasts will be provided on a daily basis to the AQ contact listed above as a supplemental tool in forecasting ozone alert days and help with decisions regarding flying the research aircraft during DISCOVER-AQ.
Enabling Interactions among AQAST, "Key End-Users" and NASA Mission Planners; PI: Bryan Duncan (NASA/GSFC); AQAST team members: Brad Pierce (NOAA) and Pius Lee (NOAA); Other personnel: Ana Prados (NASA/GSFC and University of Maryland Baltimore Co.); AQ Mgmt contacts: EPA (Rich Scheffe), US Forest Service (Rick Graw), National Park
Service (Bret Schichtel), California Air Resources Board (Ajith Kaduwela), Texas Commission on Environmental Quality (Jim Smith, Mark Estes, and Clint Harper). Short-term outcome: Increase in the use of NASA data resources as a result of improved perceptions of the value of NASA data for AQ applications. Long-term outcome: Increase in the use of NASA resources for AQ applications as a result of the formulation of NASA satellite products that are better aligned with end-user needs, including better data continuity.
Air Quality and Health Impacts of June 2012 Colorado Wildfires; PIs: Gabriele Pfister and David Edwards (NCAR); AQAST Co-PIs: Yang Liu and Matthew Strickland (Emory University); AQ mgmt contacts: Colorado Department of Public Health and Environment: Patrick Reddy (Air Pollution Control Division, Jane Mitchell (Disease Control and Environmental Epidemiology Division); Collaborators: Louisa Emmons (NCAR), Christine Wiedinmyer (NCAR), Maria Val Martin (CSU), Janice Coen (NCAR), Arthur Mizzi (NCAR); Expected outcomes: The outcome of this work will provide important insight into AQ and health issues related to wildfires and present a prototype for the application of research tools in exceptional event analysis and health studies. It will further provide a baseline for establishing predictive tools to support agencies in issuing health advisors during wildfire events.
Source contributions to deposition of reactive nitrogen in the US; PI: Daven Henze (CU Boulder); AQAST team members: Daniel Jacob, Jana Milford, Armistead Russell; Other personnel: Matt Turner (CU Boulder), Raluca Ellis (Harvard); AQ mgmt contacts: Bret Schichtel, John Vimont (NPS); Richard Scheffe (EPA); Linda Pardo (USFS); Expected outcomes: (1) Improved understanding of the sources of reactive nitrogen deposition in sensitive areas and the impacts of future rising levels of NH3, (2) Guidance for EPA's development of secondary standards on NOx and SOx emissions; (3) Guidance for the design of future emission control strategies aimed at reducing reactive nitrogen deposition above critical loads.
Source contributions to seasonal vegetative exposure to ozone; PI: Daven Henze (CU Boulder); AQAST team members: Jana Milford, Arlene Fiore, Greg Carmichael, Gabriele Pfister; Other personnel: Kateryna Lapina, (CU Boulder); Min Huang, Kevin Bowman (JPL); Meiyun Lin (Princeton); AQ management contacts: Jefrey Herrick, Steve Dutton, Travis Smith, Vicki Sandiford (US EPA), Ellen Porter (NPS); Expected outcomes: (1) Improved understanding of extent to which local versus distant sources impact vegetative exposure to ozone across dierent regions and exposure thresholds, (2) Facilitate eective SIP development around secondary ozone standards, particularly for National Parks in the West.
Interstate transport of particulate and trace gas pollution from fires through the Midwest and the Great Plains; PI: Edward Hyer (NRL); Other personnel: Benjamin de Foy (Saint Louis University), Jun Wang (University of Nebraska); Air quality agency customer: Ms. Shelley Schneider (Nebraska Department of Environmental Quality);
Satellite based support for Stratospheric Intrusion Exceptional Event Analysis and Secondary Visibility Standard Implementation Planning; PI: R. Bradley Pierce (NOAA/NESDIS); AQAST Co-Is: Daniel Jacob, Arlene M. Fiore, James Szykman, Greg Carmichael, Tracey Holloway, Steve Ackerman; Other Personnel: Todd Schaack and Jason Brunner (UW-Madison/SSEC), Pablo Sadie (UI/CGRER), Meiyun Lin (GFDL); AQ mgmt contacts: Gail Tonnesen (US EPA Region 8), Patrick Reddy (Air Pollution Control Division, CO DPHE), Donna Kenski (LADCO), Tom Moore (WRAP); Expected outcomes: Improved SI Exceptional Event Analysis and SIP planning for regional haze and potential secondary fine particle standards.
Assessment of the applicability of current worldwide studies of satellite retrievals and emissions estimation to U.S. air quality management; PI: David Streets (ANL); Co-I, Bryan Duncan (NASA/GSFC); Other participants: Nickolay Krotkov (NASA/GSFC), Zifeng Lu (Argonne National Laboratory), Randall Martin (Dalhousie U.), Yasuko Yoshida (SSAI; AQAST Co-I); AQ mgmt contacts: Marc Houyoux, Carey Jang, Rob Pinder, Jeremy Schreifels (all EPA); Expected outcomes: A perspective on what can be expected from satellite retrievals to assist AQ management in the U.S., particularly U.S. EPA NEI management, and what further evolutionary steps are needed to develop useful and robust tools and methodologies.
Improved Web-based Access to NASA and NOAA Airborne Data Sets in support of Chemical Transport Model (Regional and Global) Evaluation and Development Activities in the Air Quality Communities; PI: James Szykman (EPA/NERL); AQAST Co-Is: Greg Carmichael (U. Iowa), Pius Lee (NOAA/ARL) and Brad Pierce (NOAA/NESDIS); Other Participants: Gao Chen and Pam Rinsland (NASA/LaRC), Danny Mangosing (NASA/LaRC/SSAI), Todd Plessel and Matt Freeman (USEPA/NCC/L-M), and Martin Schultz (Forschungszentrum Juelich); AQ mgmt contacts: Rohit Mathur (Acting Director, Atmospheric Modeling and Analysis Division USEPA/ORD); Expected outcomes: This TT project proposes to create an operational WCS to existing field campaign data residing at the NASA Langley Atmospheric Data Center. This data access service will allow users to directly access the data through multiple existing user interfaces and analysis tools, including ADAM, RSIG, DataFed, and MACC, as well as new interfaces and analysis tools and provide users the ability to properly filter and grid the data onto select model grid projections. As the network expands and the services mature, their use will expand beyond research projects to the broader air quality management community.
Improvements in the Physical Atmosphere Related to Biogenic Emissions, Clouds and Land-use; PI: Richard McNider, University of Alabama-Huntsville; AQAST Co-I's: , Arastoo-Pour Biazar, University of Alabama-Huntsville, Dan Cohan, Rice University; AQ mgmt contacts: Saffett Tanrikulu, Bay Area Air Quality District/California Air Resources Board; Jon Pleim, US Environmental Protection Agency; Expected outcomes: 1. Greater knowledge of the interannual variability in biogenic VOC and soil NOx emissions across the United States and the importance of these emissions to regional air quality. 2. Assessment of the role and impact of insolation data on regulatory type simulations in conjunction with updated vegetation data from MODIS or other sources to represent dynamic vegetation conditions in regional chemistry models. 3. Photochemical models with temperatures that are too warm can make NOx controls look too effective and models that are too cool make NOx controls less effective. Thus, we expect improvement of regulatory model performance through assimilation of satellite skin temperature. 4. Photochemical models with mixing heights too large can be less sensitive to emission reductions. Mixing heights that are too low can make emission control strategies look too effective.