AG dem Resume

DENNIS E. MCNALLY
SENIOR SCIENTIST
ALPINE GEOPHYSICS, LLC

EDUCATION:

M.S. Atmospheric Sciences, University of California, Davis, California, December, 1994.
B.S. Chemical Engineering, Emphasis in Computer Science, University of Colorado, Boulder, Colorado, 1987.

PROFESSIONAL EXPERIENCE:

Senior Scientist, Alpine Geophysics, Arvada, CO, 1990-Present.
Staff Scientist, Radian Corporation, Sacramento, CA, 1987-1990.
Student Assistant II, National Center for Atmospheric Research, Boulder, CO, 1985-1987.

FIELDS OF EXPERIENCE:

Dennis McNally is an Atmospheric Scientist interested in applied air quality studies. He provides project management, programming and modeling expertise for advanced photochemical and mesoscale meteorological modeling studies. He possesses a practical knowledge of the physical sciences and the computer science skills essential in mathematical modeling of environmental systems. His education has been strengthened by practical experience in atmospheric transport and process modeling through his participation in the Regional Acid Deposition Model (RADM) development program at the National Center for Atmospheric Research (NCAR). Mr. McNally was honored by being selected as a participant in the 1990 NCAR Summer Colloquium on Mesoscale Data Assimilation. His areas of expertise include the following:

Photochemical Modeling

Mr. McNally has been a central participant in over 50 studies involving the application of state of science photochemical modeling systems. His experience ranges from chemical mechanism development to modeling to support regulatory issues. Over the last decade Mr. McNally has experience with the CALPUFF, CAMx, UAM-V, UAM-IV, UAM-2, ROM 2.2, MAQSIP, SAQM and Models-3/CMAQ photochemical models. Mr. McNally has conducted numerous photochemical modeling training courses for both industrial and government groups.

Meteorological Modeling

Dennis has extensive experience with the application of meteorological models for air quality applications. His experience ranges from application of fairly simplistic objective/diagnostic models for screening analyses to state of science prognostic models to address regional transport. He has experience with the CSUMM, MM5 and RAMS prognostic meteorological models and the CALMET diagnostic model for applications in numerous government and industry-sponsored studies. Mr. McNally has conducted several training courses for various state and local government agencies.

Model Performance Evaluation

A key component to the application of meteorological and photochemical models is comparison to observations. As the developer of the MAPS model performance evaluation tool, Mr. McNally has taken evaluation techniques out of academia and made them available to the regulatory community.

Selected Project Experience

Pennsylvania Biofuels. Client: E.H. Pechan and Associates/Pennsylvania DEP, 2009. Using the Mobile 6/SMOKE emissions models and the CMAQ air quality model, Alpine is assessing the ozone and particulate air quality impact of increased biofuel penetration within the state.

Nucor Steel Louisiana, Client: Environmental Resource Management/Nucor Steel, 2008. Using a preliminary release of the Baton Rouge Louisiana SIP photochemical modeling system Alpine assessed the potential ozone impacts of a proposed pig iron facility.

Greater Natural Buttes. Client: ENSR/Anadarko Petroleum, 2008 – Present. Under the NEPA process Alpine is applying the CMAQ model for base years 2002 and 2006, and a future year of 2018 to examine alternative development scenarios in the Uinta Basin. In addition to the CMAQ modeling, this study involved application of the Western Regional Air Partnership (WRAP) MM5 meteorological fields and processing of industry supplied oil and gas emissions and the WRAP emissions database using the SMOKE emissions modeling system.

Denver/Northern Front Range State Implementation Plan. Client: ENVIRON/Regional Air Quality Council, 2008 – Present. Alpine is conducting SMOKE emissions and CAMx photochemical modeling in support of the Denver/Northern Front Range 8-hour ozone State Implementation Plan (SIP). This SIP modeling includes development of a June 2006 baseline photochemical modeling database, emissions sensitivity testing to assist in developing candidate control strategies and detailed control strategy emissions development and photochemical modeling.

Four Corners Ozone Task Force CAMx. Client: ENVIRON/New Mexico Environment Department, 2007 – Present. As a subcontractor to ENVIRON, Alpine is assisting in developing a summer 2005 CAMx photochemical modeling episode over the Four-Corner region of Arizona, Colorado, New Mexico and Utah. This modeling database will then be used to assess a variety of emissions sensitivity experiments to determine both the current causes of high ozone in the area and to assist in future air quality planning.

Baton Rouge Stakeholder Air Quality Modeling. Client: Industry Consortium, 2006-Present. Under contract to a consortium of industrial clients, Alpine has developed and evaluated a summer 2005 CAMx modeling database over Baton Rouge, LA to examine ozone culpability in the region and to assist the State of Louisiana in developing an 8-hour ozone State Implementation Plan. Included in this project are source apportionment simulations and future year emissions sensitivity assessments.

VISTAS Emissions and Air Quality Modeling. Client: VISTAS, 2003 - Present. VISTAS is a collaborative effort of state governments, tribal governments, and various federal agencies established to initiate and coordinate activities associated with the management of regional haze, visibility, and other air quality issues in the southeastern United States. Alpine Geophysics, LLC, is part of a team performing the Phase II Emissions and Air Quality Modeling for VISTAS. The cornerstone of the Phase II activities is performing annual emissions and regional PM/ozone modeling of 2002, 2009, and 2018 using the SMOKE/CMAQ/MM5 modeling system.

SIP Strategy Comprehension Plan (SSCP). Client: Industry Consortium, 2005 - 2007. The objective in developing this plan was to describe the components of an integrated 8-hour ozone and annual PM2.5 modeling study for the five-state Upper Midwest region. The aim of the SSCP is to develop a process allowing the project sponsors insight and assurance that best modeling practices are being utilized to identify effective emission reduction controls to address the residual nonattainment issues in this region, and that if alternate and credible information is developed independently outside of the scope, timelines, or budgets of the RPO recommendation process, that these data are introduced to the states in a constructive manner for consideration in SIP development timelines. This plan was implemented by Alpine in preparing MM5 meteorological, SMOKE and photochemical modeling of 2002, 2005, 2008 and 2015 and presentation of the results to both the regulators and the regulated industry.

San Juan County Early Action Compact. Client: Air Quality Bureau, New Mexico Environment Division, 2003 - 2004. Performed MM5 meteorological, emissions, and photochemical modeling for multiple ozone episodes to assist the state in application of an Early Action Compact to EPA. Included preparation of protocol documents, quality assurance documents, and community outreach presentations, and delivery of comprehensive training to division staff and interested parties.

Central California Ozone Study (CCOS) Ambient Ozone. Client: Valleywide Air Pollution Study Agency, 2005-2006. The primary object of this study was to advance the present understanding of air quality in central California, with specific emphasis on ozone formation and ozone levels in the San Joaquin Valley. The geographic domain of interest included the entire region of Central California Ozone Study, which in addition to the San Joaquin Valley incorporates the Sacramento Valley, the San Francisco Bay Area, and the central California coast. In order to do this, we needed to clarify the relationships between trends in ambient ozone data and trends in the stationary, area, on-road mobile, non-road mobile, and biogenic sources emissions inventories. This study involved application of the MM5 model, the EMS-95 emissions model and the CAMx photochemical model instrumented with advanced process analysis.

Holnam Evaluation. Client: U.S. EPA, Region 7, 2002. Performed CAMx photochemical modeling to assess the potential ozone air quality impacts of a proposed Portland cement manufacturing plant upwind of the St. Louis non-attainment area. Tasks performed during this project included:

Obtaining all relevant modeling databases and proposed facility emissions estimates from the Missouri Department of Natural Resources and confirm proper operation of the model on the Alpine Geophysics computer network;
Modifying the inputs to UAM-V to include the nitrogen oxide and hydrocarbon emissions from the proposed facility;
Running the UAM-V with the modified emission files;
Interpreting the results of the modeling on the ozone attainment status in St. Louis

Peninsular Florida Ozone Study. Client: Florida Department of Environmental Protection (FL DEP), 2000 - 2002. The objectives of this study were to: (1) set up and evaluate advanced emissions, meteorological, and photochemical modeling tools for up to nine 8-hour ozone episodes affecting the Tampa, Orlando, and Jacksonville areas (three episodes per area); (2) examine potential emissions control strategies that would attain and/or maintain the new 8-hour standard in the region; and (3) assist in the development of the technical analyses supporting a "weight of evidence" attainment demonstration to be used by FL DEP for regulatory decision-making and in developing its State Implementation Plan (SIP) submittal to the EPA. To accomplish these objectives, the following technical approach was implemented:

Assess the nature and extent of ozone episodes in the central Florida region and develop a quantitative procedure for classifying and selecting modeling episodes for 8-hour modeling;
Prepare an Ozone Modeling Protocol that guides the adaptation, evaluation, and use of emissions, meteorological, and photochemical models for the region;
Prepare appropriate emissions, meteorological, and air quality model input data sets for up to nine multiple-day episodes suitable for 8-hour ozone attainment demonstration modeling in the individual Tampa, Orlando, and Jacksonville areas or across the entire Peninsular Florida region as a whole;
Conduct model evaluation analyses following draft EPA 8-hour ozone guidelines (EPA, 1999) in order to estimate the adequacy and reliability of the photochemical modeling system and datasets;
Develop future year baseline emissions projections in the Peninsular Florida region based on the best projections of emissions growth and control in the region;
Exercise the photochemical modeling system with the future-year emissions estimates for the selected episodes to ascertain whether the new 8-hour standard is attained. If attainment is not modeled in the baseline scenario, examine pertinent emissions reduction scenarios aimed at demonstrating attainment for the episode; and
Develop a suitable "weight of evidence" analysis supporting the ozone attainment demonstration, consistent with EPA guidance.

PROFESSIONAL SOCIETIES:

Air and Waste Management Association
American Meteorological Society
American Chemical Society

PUBLICATIONS:

Journal Papers:

“Preliminary Evaluation of the Community Multiscale Air Quality Model for 2002 over the Southeastern United States”, Journal of the Air & Waste Management Association, (with others), Vol. 65, pp. 1694-1708, 2005.

"Evaluation of CALGRID Using Two Different Ozone Episodes and Comparison to UAM Results", Atmospheric Environment, (with others), Vol. 28, No. 17, pp. 2823-2845, 1994.

"Photochemical Modeling of Two SCCCAMP Ozone Episodes," (with T. W. Tesche), Journal of Applied Meteorology, Vol. 30, pp. 745-763.

Conference Proceedings and Presentations:

“Application of EPA’s Flexible Attainment Demonstration Guidance to the Pittsburgh-Beaver Valley Ozone Nonattainment Area", (with T. W. Tesche) 10th Joint Conference on Applications of Air Pollution Meteorology, Phoenix, AZ, 11-16 January, 1998.

"Assessment of the Reliability of the OTAG Modeling System", (with others), 10th Joint Conference on Applications of Air Pollution Meteorology, Phoenix, AZ, 11-16 January, 1998.

"Final Evaluation of the MM5 Model for the 3-6 August 1990 SARMAP Episode over Central California",(with others), 10th Joint Conference on Applications of Air Pollution Meteorology, Phoenix, AZ, 11-16 January, 1998.

"Nested Regional Photochemical Modeling in Support of the Pittsburgh-Beaver Valley Ozone SIP",(with others), 10th Joint Conference on Applications of Air Pollution Meteorology, Phoenix, AZ, 11-16 January, 1998.

“Evaluation of the MM5, SAQM, UAM-IV, and UAM-V Models Over the Northeast U.S. for Four Ozone Episodes Using Routine and Intensive NARSTO-NE and LMOS Aerometric Data Sets”, (with T. W. Tesche), First NARSTO-NE Data Analysis Symposium and Workshop, Washington, D.C., 10-12 December, 1996.

"Application of the SAQM, URM, and UAM-V Photochemical Models to the Southern California SCAQS-97 Domain", (with others), Ninth Joint Conference on Applications of Air Pollution Meteorology, Atlanta, GA, 28 January-2 February 1996.

"Evaluation of the MM5 Model for the July 1988 and July 1995 Episodes and Comparison with the OTAG Meteorological Model, RAMS", (with T. W. Tesche), 89th Annual Meeting of the Air and Waste Management Association, 23-28 June 1996, Nashville, TN.

"Relationships Between Ozone Precursor Controls Needed to Meet 1-Hr and 8-Hr Ozone NAAQS in San Francisco and Chicago", (with T. W. Tesche), 89th Annual Meeting of the Air and Waste Management Association, 23-28 June 1996, Nashville, TN.

"Evaluation of the URM, UAM-V, UAM-IV, and ROM2.2 Photochemical Models Over Lower Lake Michigan for Two 1991 LMOS Oxidant Episodes", (with others), Ninth Joint Conference on Applications of Air Pollution Meteorology, Atlanta, GA, 28 January-2 February 1996.

"Application of the Emissions Modeling System EMS-95 to the Southern California SCAQS-97 Domain", (with others), Ninth Joint Conference on Applications of Air Pollution Meteorology, Atlanta, GA, 28 January-2 February 1996.

"Numerical Simulation of Mesoscale Circulation Development in the San Diego Air Basin", Tropospheric Ozone and the Environment II, Air and Waste Management Association, 5-7 Nov. 1991, Atlanta, GA.

"Development of the Annual Average Urban Airshed Model (3AM) with Application to the Los Angeles Basin," (with T. W. Tesche), presented at the Symposium on Atmospheric Modeling, American Chemical Society, 10-15 Sept. 1990, Miami, FL.

"Ozone Control Implications Revealed by Airshed Model Isopleths," 82nd Annual Meeting of the Air and Waste Management Association, 25-30 June, 1989, Anaheim, CA.

"Role of Windfield Estimation in Airshed Modeling for Ozone Non-Attainment Planning," (with others) 81st Annual Meeting of the Air Pollution Control Association, 21-25 June, 1988, Dallas, TX.

"Importance of Boundary Layer Measurements for Urban Airshed Modeling," (with others) 81st Annual Meeting of the Air Pollution Control Association, 212-5 June, 1988, Dallas, TX.

"Incorporation of Monte Carlo Simulation Techniques into the R-RAM II Health Risk Assessment Model," 81st Annual Meeting of the Air Pollution Control Association, 21-25 June, 1988, Dallas, TX.

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	DENNIS E. MCNALLY SENIOR SCIENTIST ALPINE GEOPHYSICS, LLC EDUCATION: M.S. Atmospheric Sciences, University of California, Davis, California, December, 1994. B.S. Chemical Engineering, Emphasis in Computer Science, University of Colorado, Boulder, Colorado, 1987. PROFESSIONAL EXPERIENCE: Senior Scientist, Alpine Geophysics, Arvada, CO, 1990-Present. Staff Scientist, Radian Corporation, Sacramento, CA, 1987-1990. Student Assistant II, National Center for Atmospheric Research, Boulder, CO, 1985-1987. FIELDS OF EXPERIENCE: Dennis McNally is an Atmospheric Scientist interested in applied air quality studies. He provides project management, programming and modeling expertise for advanced photochemical and mesoscale meteorological modeling studies. He possesses a practical knowledge of the physical sciences and the computer science skills essential in mathematical modeling of environmental systems. His education has been strengthened by practical experience in atmospheric transport and process modeling through his participation in the Regional Acid Deposition Model (RADM) development program at the National Center for Atmospheric Research (NCAR). Mr. McNally was honored by being selected as a participant in the 1990 NCAR Summer Colloquium on Mesoscale Data Assimilation. His areas of expertise include the following: Photochemical Modeling Mr. McNally has been a central participant in over 50 studies involving the application of state of science photochemical modeling systems. His experience ranges from chemical mechanism development to modeling to support regulatory issues. Over the last decade Mr. McNally has experience with the CALPUFF, CAMx, UAM-V, UAM-IV, UAM-2, ROM 2.2, MAQSIP, SAQM and Models-3/CMAQ photochemical models. Mr. McNally has conducted numerous photochemical modeling training courses for both industrial and government groups. Meteorological Modeling Dennis has extensive experience with the application of meteorological models for air quality applications. His experience ranges from application of fairly simplistic objective/diagnostic models for screening analyses to state of science prognostic models to address regional transport. He has experience with the CSUMM, MM5 and RAMS prognostic meteorological models and the CALMET diagnostic model for applications in numerous government and industry-sponsored studies. Mr. McNally has conducted several training courses for various state and local government agencies. Model Performance Evaluation A key component to the application of meteorological and photochemical models is comparison to observations. As the developer of the MAPS model performance evaluation tool, Mr. McNally has taken evaluation techniques out of academia and made them available to the regulatory community. Selected Project Experience Pennsylvania Biofuels. Client: E.H. Pechan and Associates/Pennsylvania DEP, 2009. Using the Mobile 6/SMOKE emissions models and the CMAQ air quality model, Alpine is assessing the ozone and particulate air quality impact of increased biofuel penetration within the state. Nucor Steel Louisiana, Client: Environmental Resource Management/Nucor Steel, 2008. Using a preliminary release of the Baton Rouge Louisiana SIP photochemical modeling system Alpine assessed the potential ozone impacts of a proposed pig iron facility. Greater Natural Buttes. Client: ENSR/Anadarko Petroleum, 2008 – Present. Under the NEPA process Alpine is applying the CMAQ model for base years 2002 and 2006, and a future year of 2018 to examine alternative development scenarios in the Uinta Basin. In addition to the CMAQ modeling, this study involved application of the Western Regional Air Partnership (WRAP) MM5 meteorological fields and processing of industry supplied oil and gas emissions and the WRAP emissions database using the SMOKE emissions modeling system. Denver/Northern Front Range State Implementation Plan. Client: ENVIRON/Regional Air Quality Council, 2008 – Present. Alpine is conducting SMOKE emissions and CAMx photochemical modeling in support of the Denver/Northern Front Range 8-hour ozone State Implementation Plan (SIP). This SIP modeling includes development of a June 2006 baseline photochemical modeling database, emissions sensitivity testing to assist in developing candidate control strategies and detailed control strategy emissions development and photochemical modeling. Four Corners Ozone Task Force CAMx. Client: ENVIRON/New Mexico Environment Department, 2007 – Present. As a subcontractor to ENVIRON, Alpine is assisting in developing a summer 2005 CAMx photochemical modeling episode over the Four-Corner region of Arizona, Colorado, New Mexico and Utah. This modeling database will then be used to assess a variety of emissions sensitivity experiments to determine both the current causes of high ozone in the area and to assist in future air quality planning. Baton Rouge Stakeholder Air Quality Modeling. Client: Industry Consortium, 2006-Present. Under contract to a consortium of industrial clients, Alpine has developed and evaluated a summer 2005 CAMx modeling database over Baton Rouge, LA to examine ozone culpability in the region and to assist the State of Louisiana in developing an 8-hour ozone State Implementation Plan. Included in this project are source apportionment simulations and future year emissions sensitivity assessments. VISTAS Emissions and Air Quality Modeling. Client: VISTAS, 2003 - Present. VISTAS is a collaborative effort of state governments, tribal governments, and various federal agencies established to initiate and coordinate activities associated with the management of regional haze, visibility, and other air quality issues in the southeastern United States. Alpine Geophysics, LLC, is part of a team performing the Phase II Emissions and Air Quality Modeling for VISTAS. The cornerstone of the Phase II activities is performing annual emissions and regional PM/ozone modeling of 2002, 2009, and 2018 using the SMOKE/CMAQ/MM5 modeling system. SIP Strategy Comprehension Plan (SSCP). Client: Industry Consortium, 2005 - 2007. The objective in developing this plan was to describe the components of an integrated 8-hour ozone and annual PM2.5 modeling study for the five-state Upper Midwest region. The aim of the SSCP is to develop a process allowing the project sponsors insight and assurance that best modeling practices are being utilized to identify effective emission reduction controls to address the residual nonattainment issues in this region, and that if alternate and credible information is developed independently outside of the scope, timelines, or budgets of the RPO recommendation process, that these data are introduced to the states in a constructive manner for consideration in SIP development timelines. This plan was implemented by Alpine in preparing MM5 meteorological, SMOKE and photochemical modeling of 2002, 2005, 2008 and 2015 and presentation of the results to both the regulators and the regulated industry. San Juan County Early Action Compact. Client: Air Quality Bureau, New Mexico Environment Division, 2003 - 2004. Performed MM5 meteorological, emissions, and photochemical modeling for multiple ozone episodes to assist the state in application of an Early Action Compact to EPA. Included preparation of protocol documents, quality assurance documents, and community outreach presentations, and delivery of comprehensive training to division staff and interested parties. Central California Ozone Study (CCOS) Ambient Ozone. Client: Valleywide Air Pollution Study Agency, 2005-2006. The primary object of this study was to advance the present understanding of air quality in central California, with specific emphasis on ozone formation and ozone levels in the San Joaquin Valley. The geographic domain of interest included the entire region of Central California Ozone Study, which in addition to the San Joaquin Valley incorporates the Sacramento Valley, the San Francisco Bay Area, and the central California coast. In order to do this, we needed to clarify the relationships between trends in ambient ozone data and trends in the stationary, area, on-road mobile, non-road mobile, and biogenic sources emissions inventories. This study involved application of the MM5 model, the EMS-95 emissions model and the CAMx photochemical model instrumented with advanced process analysis. Holnam Evaluation. Client: U.S. EPA, Region 7, 2002. Performed CAMx photochemical modeling to assess the potential ozone air quality impacts of a proposed Portland cement manufacturing plant upwind of the St. Louis non-attainment area. Tasks performed during this project included: Obtaining all relevant modeling databases and proposed facility emissions estimates from the Missouri Department of Natural Resources and confirm proper operation of the model on the Alpine Geophysics computer network; Modifying the inputs to UAM-V to include the nitrogen oxide and hydrocarbon emissions from the proposed facility; Running the UAM-V with the modified emission files; Interpreting the results of the modeling on the ozone attainment status in St. Louis Peninsular Florida Ozone Study. Client: Florida Department of Environmental Protection (FL DEP), 2000 - 2002. The objectives of this study were to: (1) set up and evaluate advanced emissions, meteorological, and photochemical modeling tools for up to nine 8-hour ozone episodes affecting the Tampa, Orlando, and Jacksonville areas (three episodes per area); (2) examine potential emissions control strategies that would attain and/or maintain the new 8-hour standard in the region; and (3) assist in the development of the technical analyses supporting a "weight of evidence" attainment demonstration to be used by FL DEP for regulatory decision-making and in developing its State Implementation Plan (SIP) submittal to the EPA. To accomplish these objectives, the following technical approach was implemented: Assess the nature and extent of ozone episodes in the central Florida region and develop a quantitative procedure for classifying and selecting modeling episodes for 8-hour modeling; Prepare an Ozone Modeling Protocol that guides the adaptation, evaluation, and use of emissions, meteorological, and photochemical models for the region; Prepare appropriate emissions, meteorological, and air quality model input data sets for up to nine multiple-day episodes suitable for 8-hour ozone attainment demonstration modeling in the individual Tampa, Orlando, and Jacksonville areas or across the entire Peninsular Florida region as a whole; Conduct model evaluation analyses following draft EPA 8-hour ozone guidelines (EPA, 1999) in order to estimate the adequacy and reliability of the photochemical modeling system and datasets; Develop future year baseline emissions projections in the Peninsular Florida region based on the best projections of emissions growth and control in the region; Exercise the photochemical modeling system with the future-year emissions estimates for the selected episodes to ascertain whether the new 8-hour standard is attained. If attainment is not modeled in the baseline scenario, examine pertinent emissions reduction scenarios aimed at demonstrating attainment for the episode; and Develop a suitable "weight of evidence" analysis supporting the ozone attainment demonstration, consistent with EPA guidance. PROFESSIONAL SOCIETIES: Air and Waste Management Association American Meteorological Society American Chemical Society PUBLICATIONS: Journal Papers: “Preliminary Evaluation of the Community Multiscale Air Quality Model for 2002 over the Southeastern United States”, Journal of the Air & Waste Management Association, (with others), Vol. 65, pp. 1694-1708, 2005. "Evaluation of CALGRID Using Two Different Ozone Episodes and Comparison to UAM Results", Atmospheric Environment, (with others), Vol. 28, No. 17, pp. 2823-2845, 1994. "Photochemical Modeling of Two SCCCAMP Ozone Episodes," (with T. W. Tesche), Journal of Applied Meteorology, Vol. 30, pp. 745-763. Conference Proceedings and Presentations: “Application of EPA’s Flexible Attainment Demonstration Guidance to the Pittsburgh-Beaver Valley Ozone Nonattainment Area", (with T. W. Tesche) 10th Joint Conference on Applications of Air Pollution Meteorology, Phoenix, AZ, 11-16 January, 1998. "Assessment of the Reliability of the OTAG Modeling System", (with others), 10th Joint Conference on Applications of Air Pollution Meteorology, Phoenix, AZ, 11-16 January, 1998. "Final Evaluation of the MM5 Model for the 3-6 August 1990 SARMAP Episode over Central California",(with others), 10th Joint Conference on Applications of Air Pollution Meteorology, Phoenix, AZ, 11-16 January, 1998. "Nested Regional Photochemical Modeling in Support of the Pittsburgh-Beaver Valley Ozone SIP",(with others), 10th Joint Conference on Applications of Air Pollution Meteorology, Phoenix, AZ, 11-16 January, 1998. “Evaluation of the MM5, SAQM, UAM-IV, and UAM-V Models Over the Northeast U.S. for Four Ozone Episodes Using Routine and Intensive NARSTO-NE and LMOS Aerometric Data Sets”, (with T. W. Tesche), First NARSTO-NE Data Analysis Symposium and Workshop, Washington, D.C., 10-12 December, 1996. "Application of the SAQM, URM, and UAM-V Photochemical Models to the Southern California SCAQS-97 Domain", (with others), Ninth Joint Conference on Applications of Air Pollution Meteorology, Atlanta, GA, 28 January-2 February 1996. "Evaluation of the MM5 Model for the July 1988 and July 1995 Episodes and Comparison with the OTAG Meteorological Model, RAMS", (with T. W. Tesche), 89th Annual Meeting of the Air and Waste Management Association, 23-28 June 1996, Nashville, TN. "Relationships Between Ozone Precursor Controls Needed to Meet 1-Hr and 8-Hr Ozone NAAQS in San Francisco and Chicago", (with T. W. Tesche), 89th Annual Meeting of the Air and Waste Management Association, 23-28 June 1996, Nashville, TN. "Evaluation of the URM, UAM-V, UAM-IV, and ROM2.2 Photochemical Models Over Lower Lake Michigan for Two 1991 LMOS Oxidant Episodes", (with others), Ninth Joint Conference on Applications of Air Pollution Meteorology, Atlanta, GA, 28 January-2 February 1996. "Application of the Emissions Modeling System EMS-95 to the Southern California SCAQS-97 Domain", (with others), Ninth Joint Conference on Applications of Air Pollution Meteorology, Atlanta, GA, 28 January-2 February 1996. "Numerical Simulation of Mesoscale Circulation Development in the San Diego Air Basin", Tropospheric Ozone and the Environment II, Air and Waste Management Association, 5-7 Nov. 1991, Atlanta, GA. "Development of the Annual Average Urban Airshed Model (3AM) with Application to the Los Angeles Basin," (with T. W. Tesche), presented at the Symposium on Atmospheric Modeling, American Chemical Society, 10-15 Sept. 1990, Miami, FL. "Ozone Control Implications Revealed by Airshed Model Isopleths," 82nd Annual Meeting of the Air and Waste Management Association, 25-30 June, 1989, Anaheim, CA. "Role of Windfield Estimation in Airshed Modeling for Ozone Non-Attainment Planning," (with others) 81st Annual Meeting of the Air Pollution Control Association, 21-25 June, 1988, Dallas, TX. "Importance of Boundary Layer Measurements for Urban Airshed Modeling," (with others) 81st Annual Meeting of the Air Pollution Control Association, 212-5 June, 1988, Dallas, TX. "Incorporation of Monte Carlo Simulation Techniques into the R-RAM II Health Risk Assessment Model," 81st Annual Meeting of the Air Pollution Control Association, 21-25 June, 1988, Dallas, TX.