Harvey E. Jeffries

Revised 02/2003

 

ADDRESSES:

Department of Environmental Sciences and Engineering             Phone: (919) 966-7312 or 966-5451

CB 7431, Rm. 120, Rosenau Hall                                             Fax:     (919) 933-2393

School of Public Health                                                             e-mail:  harvey@unc.edu

University of North Carolina

Chapel Hill, North Carolina  27599-7431

 

OThree Chemistry, Research and Service                                 Phone: (919) 967-0160

410 Highview Drive

Chapel Hill, NC, 27517                                                            e-mail: harvey@othree.com

 

EDUCATION:

Ph.D., Atmospheric Chemistry, 1971, University of North Carolina at Chapel Hill, NC,

M.S.P.H., Air and Industrial Hygiene, 1967, University of North Carolina at Chapel Hill, NC.

B.S., Chemistry, 1964, Florida Presbyterian College (now Eckard College).

 

ACADEMIC APPOINTMENTS:

Professor

Dept. of Env. Sci. & Eng., UNC-CH

1983-present

Associate Professor

Dept. of Env. Sci. & Eng., UNC-CH

1977-1983

Assistant Professor

Dept. of Env. Sci. & Eng., UNC-CH

1972-1977

Research Associate

Dept. of Env. Sci. & Eng., UNC-CH

1970-1972


EXPERIENCE:

1.     1983 – present,  Professor

ACTIVITIES:

·  Faculty member in “Atmospheric and Aquatic Science” and in “Environmental Modeling” Graduate Programs, Department of Environmental Sciences and Engineering, School of Public Health, University of North Carolina at Chapel Hill, NC.

·  Teach required and elective graduate courses in atmospheric chemistry and air quality modeling, including object-oriented scientific computer programming; supervise academic and research programs of Master’s and Ph.D students. 

·  Conduct sponsored research in fundamental photochemistry reaction science, in mathematical simulation of atmospheric chemistry, in emissions of reaction precursors, and in applying atmospheric chemistry and simulation modeling in air quality management policy formulation.

·  Co-created world-unique, outdoor smog chamber experimental facility that has been under continuous sponsored funding since 1971.

http://airchem.sph.unc.edu/Research/Facilities/UNCChamber/

·  Co-created the Morphecule chemical reaction representation method and was prime implementer of object-oriented computer code for Morphecule mechanisms and simulations.

·  Created process analysis methodology for explaining atmospheric chemistry and air quality model predictions now used in widely available air quality models.

·  Member (1996–present) of US EPA’s Science Advisory Council, Air Quality Modeling Subcommittee

·  Member (1996–present) of California Air Resources Board’s Reactivity Scientific Advisory Board.

·  Member (1999–present) of Texas Air Research Center’s Research Advisory Committee, a state funded, university-based air quality research program for the State of Texas.

·  Member (2002–present) of Texas Environmental Research Consortium’s Science Advisory Committee, a federally-funded, short-term research program to assist the Texas Commission on Environmental Quality in SIP development.

·  Member (2001–present) of Texas Commission for Environmental Quality’s Science Coordinating Committee, a state committee to assist TCEQ in planning effective research for air quality problems in Houston, Beaumont, and Dallas, TX.

·  Founding member (1998–present) of the Reactivity Research Working Group, a public/private research coordinating effort involving US EPA, academia, and industry. 

·  Member (1995-1997) of US EPA’s FACA Subcommittee for the Implementation of New Standards for Ozone, PM, and Regional Haze, a federal advisory committee to assist EPA in developing innovative ways to achieve ozone, PM, and haze-rules attainment. 

·  Exceptional Leadership Award from US EPA (1997) as Chair of the Science and Technical Workgroup for the FACA Subcommittee. 

·  Member (1992–1994) of NC Department of Environment and Natural Resources’ Committee on Urban Air Quality Model Planning and Strategy a state committee to assist DENR in developing effective air quality improvement policies.

·  Member (1992–1995) of UNC Campus Advisory Committee on Information Technology. 

·  Member (1993) of Editorial Review Board, Environmental Health Perspectives Journal. 

·  Member (1991–1992) of NC Governor’s Clean Air Advisory Committee. 

·  Consultant (2000–2002) to Business Coalition for Clean Air Appeal Group, a Houston-based stakeholder group, in analysis and use of air quality modeling to support SIP policy in Houston, TX; chief science advisor on industry-sponsored, short-term research totaling more than $2 million.

·  Expert Witness (May 2001) in Business Coalition for Clean Air Appeal Group V. Texas Natural Resource Conservation Commission, for injunction of State NOx Rules, Superior Court, Travis Co, Texas.

·  Paid reviewer (2000) to Houston Regional Monitoring stakeholder group for the Post-1999 Texas Natural Resources Conservation Commission Ozone SIP for Houston, TX.  

·  Consultant (2000–2002) to Lockheed-Martin Technical Services Support Group, Research Triangle Park as expert in implementing chemical mechanisms in EPA’s MODELS3/CMAQ air quality model.

·  Consultant (1995–99) to Pennzoil Corp., Chemical Industry Institute of Toxicology, Electric Power Research Institute, Gas Research Institute, Science Applications International Corp.

·  Consultant (1992–1993) on VOC reactivity, Office of Air Quality Planning and Standards, U.S. EPA.

·  Consultant (1990–1992) on VOC reactivity, Western States Petroleum Association.

·  Consultant (1987–1989) to Atmospheric Research and Exposure Assessments Laboratory, US EPA, to write atmospheric sciences component of EPA’s Global Climate Change Research Plan.

·  Reviewer of scientific manuscripts for Environmental Science &Technology, Atmospheric Environment, Science, International Journal of Chemical Kinetics, and Analytical Chemistry. 

·  Paid reviewer for US. EPA atmospheric research projects.

·  Paid reviewer for Lake Michigan Air Directors Consortium on air quality modeling. 

·  Grant reviewer for NSF, DOE, EPA, API, ACC, and ACS.

·  Selected (in 1996) by the Am. Geophysical Union’s International Global Atm. Chemistry’s Environmental Education Coordinating Committee to teach short-course on photochemistry for 40 students/faculty at the University of Santiago, Santiago, Chile.

PROJECTS:

Recipient of $45,000 gift from ExxonMobil Foundation to support science and policy development for PM2.5 issues, 2002.

Recipient of $450,000 gift from Business Coalition for Clean Air Appeal Group  in Houston Texas to support technical analysis of the revision of the Texas Natural Resources Conservation Commission’s Ozone State Implementation Plan to the US EPA, 2001—2002.

http://www.othree.com/HoustonSIP/HGASIP.htm

Recipient of $100,000 gift from Midcourse Correction Group  in Houston Texas to support development of a stochastic point source emissions inventory for Houston for use in the Texas Commission for Environmental Quality’s Ozone State Implementation Plan mid-course correction to the US EPA, 2003.

http://airchem.sph.unc.edu/Research/Projects/Houston/UNCPDFs/StochasticEmissionsInv.pdf

 “One Atmosphere Research Program for Urban Gaseous/Particulate Matter and Human Health Effects Studies”, P.I., U.S. EPA Cooperative Agreement, April 2002, $3,000,000.

http://www.OneAtmosphere.unc.edu/

“Environmental Modeling Research at the University of North Carolina at Chapel Hill”, co-P.I., DOE, Office of Science, Feb. 2002—Jan. 2004, $969,000.

“Technical Assistance to NC DENR for Air Quality Modeling of North Carolina,”
NC DENR, 2002—03, $85,000

 “An Object-Oriented Model for Nitrogenous Pollutants from Swine Waste Land Application,”
US EPA STAR, 1999—02, $350,000

“Transformation of Select Organic Urban HAPs: Mechanistic and Modeling Studies to Identify Cancer and Noncancer Human Health Risk,”
US EPA STAR, 1997—00, $650,000.

“Further Applications of Integrated Process Rate Analysis to the SARMAP Air Quality Model And Extension of Method to SAQM-AERO,”
California ARB, 1998—00, $60,000

“Modifying the SARMAP Air Quality Model for Integrated Process Rate Analysis and Conducting a Case Study of the August 3-6, 1990 Ozone Episode,”
California ARB, 1997—98, $48,000

"Mechanistic Studies of Isoprene and Aromatic Hydrocarbons,"
US EPA STAR, 1995—99, $450,000.

“Advanced Modeling Techniques to Study Anthropogenic Influences on Atmospheric Chemical Budgets,  NASA, with MCNC/NCSC 1996—99, $100,000.

"Development and Testing of a New Photochemical Reaction Mechanism"
US EPA, 1995—99, $465,000

"Mechanistic Studies of Isoprene and Aromatic Hydrocarbons,"
US EPA STAR, 1995—99, $450,000

"Bridging the Gap Between Transportation and Air Quality Modeling: The Development of Emission Inventory Tools and Impact Analysis"
NC Center for Transportation and the Environment, 1994—96, $195,000.

“Experiments and Modeling Studies of the Reactivities of Volatile Organic Compounds from Vehicles Operating on Alternative Fuels,”
Department of Energy, NREL, 1993—96, $761,266.

“Experimental and Theoretical Studies of Reactivity as a Conserved Property Using an AirTrak,”
Coordinating Research Council, 1992—93, $134,000.

“Observed Reactivity of Automobile-Related VOC Mixtures using an AirTrak,”
Western States Petroleum Assoc., 1992—93, $40,000.

“Advanced Chemical Reaction Mechanisms and Solvers for MODELS3,”
US EPA, 1992-94, $379,400.

“The North Carolina Compliance Modeling Project”,
NC Dept. Envr. Nat. Res., 1992—94, $120,000.

“Large Scale Air Quality Model Simulation Studies,”
UNLV-Supercomputer Center, 1992—93, $40,000.

“A Development of Multiscale Research Issues Presented in Global Climate Modeling,”
US EPA, 1992—94, $240,000.

“Environmental Chamber Studies of Important Biogenic and Anthropogenic VOCs,”
 
US EPA, 1992—93, $250,000.

“The Relative Ozone Forming Potential of Methanol Fueled Vehicle Emissions and Gasoline Fueled Vehicle Emissions in Outdoor Smog Chamber,”
Coordinating Research Council, 1990—93, $276,000.

“Development of a Standard Chamber Data Base and Protocol for Evaluating Oxidant Mechanism for Urban and Regional Models,”
US EPA, 1989—91, $526,000.

“A Development of Research Issues Arising from the use of Existing Regional Models in the Global Climate Change Scenario Production,”
US EPA, 1989—91, $240,000.

“Experimental Testing of Models Predicting Effects of UVB on Smog Chemistry,”
US EPA, 1988—90, $263,000.

“A Microcomputer System for Testing Kinetics Mechanisms with Chamber Data,”
US EPA, 1988—89, $94,000.

“A Chamber and Modeling Study to Assess the Photochemistry of Formaldehyde,”
US EPA, 1987—89, $250,000.

“Validation Testing of New Mechanisms with Outdoor Chamber Data,”
US EPA,1986—88, $249,000.

“Sensitivity of EKMA-type Control Estimates to Model Inputs,”
US EPA, 1985—86, $47,000

“Validation Data for Photochemical Mechanisms,”
US EPA, 1984—86, $180,000.

“Outdoor Smog Chamber Experiments to Test Photochemical Models, Phase III,”
US EPA, 1984—86, $180,000.

“Reactivity of Methanol Exhaust,”
US EPA, 1984—85, $100,000.

 


RECENT PRESENTATIONS:

Jeffries H.E., McNally, D., “Aircraft Observations and CAMx Predictions For Houston August 2530, 2000”, In: Ozone Science Study Workshop (November 20-21, 2002) Houston Texas (2002).

http://www.tceq.state.tx.us/air/aqp/airquality_workshop.htm

Jeffries H.E., Symons, M., Webster, M. “Stochastic Emissions Inventory for Houston Point Sources: Concepts and Examples”, Presentation to Staff, Texas Commision on Environmental Quality, November, 2002

http://airchem.sph.unc.edu/Research/Projects/Houston/UNCPDFs/StochasticEmissionsInv.pdf

Sexton, K.G, Jeffries H.E., “Smog Chamber Experiments and Photochemical Modeling To Investigate Rapid Ozone Formation from Sudden Injection of a High Concentration of VOC”,   Report to BCCA-AG, Presentation to TNRCC Staff, January 10, 2002

http://www.tceq.state.tx.us/air/aqp/airquality_techreports.html

Jeffries H.E., “A Tale of Two Ozones, and the Modeling of only One”, Presentation at Lamar University Annual Air Quality Symposium, Beaumont, Tx, August, 2001

http://airchem.sph.unc.edu/Research/Projects/Houston/UNCPDFs/TARC_Sem2001.pdf

Jeffries H.E., Deason, D., Evans, J., “Alternative Attainment Demonstration For Houston”, Presentation to Commissioners, Texas Natural Resource Conservation Commission, April, 10, 2001

http://www.othree.com/HoustonSIP/HGASIP.htm

Jeffries, H.E., “Issues Related to Atmospheric Chemistry of Ozone”, Invited Presentation at conference Air Quality Research: Future Directions Ecological, Atmospheric, Regulatory/Policy, and Education Issues, Research Triangle Park, NC, Feb. 12-15, 2001

Jeffries, H.E., “Mathemathical Modeling of NC’s Air Quality: Should you be driving an SUV?”, UNC Computational and Modeling Initiative Seminar, Feb. 21, 2001

http://airchem.sph.unc.edu/Research/DENR/

Jeffries H.E., “Review of Air Quality Modeling of Houston’s Post-1999 Attainment Demonstration SIP Revisions”, Presention to Chairman and Staff, Texas Natural Resource Conservation Commission Sept, 2000

http://www.othree.com/HoustonSIP/HGASIP.htm

Chien C.-J., Jeffries H.E. and Sexton K.G., “Mechanistic and Modeling Studies of Carboxylic Acids from the Gas-Phase Reactions of O3 and OH Radicals with Dialkenes and Unsaturated Carbonyls”. In 7th International conference on Atmospheric Sciences and Applications to Air Quality (ASAAQ). (2000).

http://airchem.sph.unc.edu/Research/Projects/EPAProjects/UNCPDFs/Chien_ASAAQ2000.pdf

Jeffries H.E., Sexton K.G. and Liu X., “Carbonyl Products from Aromatic Hydrocarbon Oxidation in Outdoor Chamber Experiments and Their Subsequent Oxidation”. In: Workshop on Chemical Behavior of Aromatic Hydrocarbons in The Troposphere. Valencia, Spain (2000).

http://airchem.sph.unc.edu/Research/Projects/EPAProjects/UNCPDFs/Jeffries_Spain2000.pdf

Liu X., Jeffries H.E. and Sexton K.G., “Atmospheric Photochemical Degradation of 1,4-Unsaturated Dicarbonyls”. In: Proceedings Sixth US/Germany Workshop on Ozone/Fine Particle Science.Dimitriades B. (ed.), U. S. Environmental Protection Agency, 272-302 (2000).

http://airchem.sph.unc.edu/Research/Projects/EPAProjects/UNCPDFs/Sexton_USGERMAN2000.pdf

Jeffries H.E., Sexton K.G. and Adelman Z., “Auxiliary mechanism (Wall Models) for UNC Outdoor Chamber”. In: Proceedings Sixth US/Germany Workshop on Ozone/Fine Particle Science. Dimitriades B. (ed.), U. S. Environmental Protection Agency, 175-191 (2000).

http://airchem.sph.unc.edu/Research/Projects/EPAProjects/UNCPDFs/Jeffries_USGERMAN2000.pdf

Jeffries, H.E., Whalen, S, Fraser,H, “Issues and Data Needs for Introducing Nitrogenous Pollutants from Swine Waste Land Application into an Object-Oriented Model Ecosystem Model” presented at EPA Cross-Discipline Ecosystem Modeling and Analysis Workshop, Research Triangle Part, NC, August 15-17, 2000.

http://airchem.sph.unc.edu/Research/Projects/EPAProjects/UNCPDFs/Jeffries_RHESSysTalk.pdf

Jeffries, H.E., “Recent Advances in Aromatics Oxidation Mechanisms and Air Quality Modeling Issues in Houston and North Carolina”, Invited Seminar at Department of Atmospheric Sciences, Texas A&M University, College Station, TX, Oct, 5, 2000.

 

SELECTED PUBLICATONS:

Liu, Xiaoyu, Harvey Jeffries, Kenneth Sexton.  "Atmospheric Photochemical Degradation of 1,4-Unsaturated Dicarbonyls", Environmental Science & Technology, Vol. 33, p. 4212-4220, 1999.

Liu, Xiaoyu, Harvey Jeffries, Kenneth Sexton.  "Hydroxyl radical and ozone initiated photochemical reactions of 1,3-butadiene", Atmospheric Environment, Vol. 33, p. 3005-3022, 1999.

Chien, Chao-Jung, M. Judith Charles, Kenneth Sexton, Harvey Jeffries.  "Analysis of Airborne Carboxylic Acids and Phenols as Their Pentafluorobenzyl Derivatives:  Gas Chromatography/Ion Trap Mass Spectrometry with a Novel Chemical Ionization Reagent, PFBOH", Environmental Science & Technology, Vol, 32, p. 299-309, 1998.

Yu, Jianzhen, Harvey Jeffries, Kenneth Sexton.  "Atmospheric Photooxidation of Alkylbenzenes - II. Evidence of Formation of Epoxide Intermediates", Atmospheric Environment, Vol. 31, No. 15, pp. 2281-2287, 1997.

Yu, Jianzhen, Harvey Jeffries, Kenneth Sexton.  "Atmospheric Photooxidation of Alkylbenzenes - I. Carbonyl Product Analyses", Atmospheric Environment, Vol. 31, No. 15, pp 2261-2280, 1997.

Yu, Jianzhen, Jeffries, H.E., Lelacheur, R.M., "Identifying Airborne Carbonyl Compounds in Isoprene Atmospheric Photooxidation products by Their PFBHA oximes Using Gas Chromatography/Ion Trap Mass Spectrometry," Environmental Science & Technology, 29:(8), 1923-1932, 1995.

Jeffries, H. E. “Photochemical Air Pollution,” Chapter 9 in Composition, Chemistry, and Climate of the Atmosphere, Ed. H.B. Singh, Van Nostand-Reinhold, New York,
ISBN 0-442-01264-0, 1995.

Jang, J.C., Jeffries, H. E., Tonnesen, S., “Sensitivity of Ozone to Model Grid Resolution: Part II. Detailed Process Analysis for Ozone Chemistry,” Atmos. Environ., 29:(21), pp.3101-3114. 1995.

Jang, J.C.,  Jeffries, H. E., Byun, D., Pleim, J.E., “Sensitivity of Ozone to Model Grid Resolution: Part I. Application of High-Resolution Regional Acid Deposition Model ,” Atmos. Environ., 29:(21), pp.3085-3100. 1995.

Jeffries, H.E., Tonnesen, S.,  A Comparison of Two Photochemical Reaction Mechanisms Using a Mass Balance and Process Analysis”  Atmos. Environ., 28:(18), 2991-3003, 1994.

Tonnesen, S., Jeffries, H.E., “Inhibition of Odd Oxygen Production in Carbon Bond IV and Generic Reaction Set Mechanisms,” Atmos. Environ., 28:(7) 1339--1349, 1994.

 

Recent Collaborators:

Mike Symons, (UNC BIOS), Mort Webster (UNC PUBPOL), Tom Tesche (Alpine Geophysics), Charles Blanchard (ENVIRAIR), Dennis McNally (Alpine Geophysics), Robin Dennis (EPA), Rohit Matur (NCSC), Uma Shakar (NCSC), Adel Hanna (NCSC), Roger Atkinson (URC), Micheal Gery (ARA), Gary Glish (UNC-Chem), Michael Crimmins (UNC-Chem), Ian Gillmore (UNC-Med), Ilona Jaspers (UNC-Med).

 

Students:

Current Students:  Byeong-Kim (PhD), Iliana Vouic (PhD), Liz Pennington (PhD)

Recent PhD Students: Chao-Jung Chien, Xiaoyu Liu, Joellen Brandmeyer, Marc Kessler, Jianzhen Yu, Zion Wang,  Gail Tonnesen, Jeffry Arnold, Terry Keating, Carey Jang, Wen-Li, K. Eng Pua

Recent MS Students: Heather Fraser (MS), Mark Lee, Zac Adelman, Lisa Borbridge, Christian Riggsbee, Yu-Hsin Li, Chao-Yang Sunny Lo, Carrie Massiello.

Past Post-Docs: Marc Kessler, Zion Wang, Guang Zheng, Wen Li

 

2.     1977 - 1983  Associate Professor

ACTIVITIES:

·  Taught courses “Measuring, Monitoring, and Survey” and “Instrumentation and Data Acquisition”. 

·  Chairman of five PhD and 10 MS committees, member of 12 PhD committees.

·  Published 13 papers, 4 proceedings, 5 research reports.

·   On-site consultant (in 1980) to State Pollution Control Agency, New South Wales, Australia, and to Commonwealth Scientific and Industrial Research Organization (CSIRO), Sydney, Australia.

·   Invited (in 1981) to give the invited keynote address at the Seventh Clean Air Conference, Sydney, Australia. 

·   Presented testimony (in 1980) before Congress’ National Commission on Air Quality, Washington, DC.

·   Consultant (1980–1983) to Chemical Manufacturing Assoc., Radian Corp., Eastman Kodak, E.I. DuPont Co., Union Carbide, Exxon Corp.,

 

PROJECTS:

 “Outdoor Smog Chamber Experiments to Test Photochemical Models,  Phase II,”
US EPA, 1981—83, $180,000

“Outdoor Smog Chamber Experiments Using Automobile Exhaust,”
US EPA, 1981—83, $200,000

“Modeling Observed Hydrocarbon Mixture Reactivity Effects,” US E
PA
, 1980—83, $290,000

“Comparison of OZIPM/EKMA Model Predictions Utilizing Different Chemical Reaction Mechanisms”,
US EPA, 1980—81, $40,000

“Outdoor Simulation of Air Pollution Control Strategies,”
US EPA, 1978—81, $270,000

“Outdoor Smog Chamber Experiments to Test Photochemical Models, Phase I,”
US EPA, 1978—81, $210,000

“Photochemical Aerosol Formation,”
Coordinating Research Council, 1976—77, $200,000

 

3.     1972 - 1977   Assistant Professor

ACTIVITIES:

·  Taught two courses.

·  Published 7 papers, 6 proceedings/book articles, and 4 reports.

·  Created photochemical model simulation computer code in PL/1 language and ran outdoor chamber simulations on IBM-360 mainframe computers.

 

4.     1970 - 1972   Research Associate

ACTIVITIES:

·  Published 5 papers.

·  Build the world’s first outdoor smog chamber with EPA funding and conducted first series of outdoor chamber experiments. 

·  Wrote real-time data acquisition computer code for PDP-11/40 minicomputer to operate and collect data from chamber.


 

ENVIRONMENTAL MODELS:

PKSS-PL/1—wrote (1975) a photochemical reaction simulation system in PL/1; organized and optimized Gear solver code for chemical simulations; provided for time variable physical conditions (e.g., temperature, photolysis rates); performed simulations on IBM-360 mainframe of indoor and outdoor smog chamber results using early EPA photochemical reaction mechanisms.

PKSTM-PL/1—wrote (1980) a photochemical reaction simple trajectory model to simulate chemistry in urban areas using Gear solver and codes from PKSS.

OZIPM-R—assisted (1986) in the complete re-writing of a research version of the Ozone Isopleth Plotting with variable Mechanisms, (which was EPA’s primary photochemical simulation model); developed new algorithms for representing time-variable emissions inputs; revised photolysis routines; ported code to IBM-PC; codes available from
ftp://airsite.unc.edu/pub/pgms/ese_unc/jeffries/chemmod/ozipr/

PKSS-PC PCOMP/PEVAL—wrote (1985—1989) a IBM-PC version in Turbo Pascal of PKSS-PL/1 but with greatly improved efficiency; developed a reaction mechanism to Intel 80387 math co-processor assembly language compiler; developed 80386/7 assembly language matrix algebra kernel routines; ported chemistry optimized Gear solver to Pascal; developed a standard library of support functions; codes available from
ftp://airsite.unc.edu/pub/pgms/ese_unc/jeffries/chemmod/pcpkss/
These codes have been used by universities in US, Australia, Brazil, China, Korea to teach photochemical reaction modeling.

JSPECTRA—wrote (1988—89) a simple radiation transfer model to compute the surface spectrally resolved direct and diffuse actinic flux and total and ultraviolet broad band surface radiation for comparison with spectroradiometer data from UNC Outdoor Chamber Site; developed algorithms to treat location, atmospheric conditions, clouds; developed an aerosol optical model;  codes available from
ftp://airsite.unc.edu/pub/pgms/ese_unc/jeffries/lightmods/jspectra/

CHMJSMOD—wrote (1988—89) a chamber actinic flux model that accounts for Teflon film reflection and transmission, chamber albedo, internal multiple reflection, and change in sun-to-chamber orientation; codes available from
ftp://airsite.unc.edu/pub/pgms/ese_unc/jeffries/lightmods/chmmodel/

FLX2RATE—wrote (1988-89) code to combine several different representations of photolytical species absorption cross sections and quantum yields with time-varying spectral actinic flux to produce time varying photolysis rates for input to PKSS; codes available from
ftp://airsite.unc.edu/pub/pgms/ese_unc/jeffries/lightmods/flx2rate/

ONED—rewrote (1993) the Pinto 1-dimensional global chemistry model and ported it to IBM-PC; improved storage and numerical algorithms; added process analysis output; codes available from
ftp://airsite.unc.edu/pub/pgms/ese_unc/jeffries/oned/

MORPHO MCOMP/MEVAL/MPLOT—designed and implemented (1995—99) an object-oriented photochemical simulation system in ANSI C++ using formal computer language techniques based on grammars; created  representation of ‘shape-shifting’ molecules; created solver algorithms to solve for reacting species with time-varying properties; created an object representation of Adobe’s Portable Document Format (pdf) and wrote a platform-independent simulation plotting package; codes available from
ftp://airchem.sph.unc.edu/ModelCommon/

 

LANGUAGES:

C++, C, Ruby, Perl5, Java, Visual Basic, FORTRAN, Pascal, PL/1, DHTML/CSS, XML, TeX/LaTeX, Postscript/PDF, various assembly languages (e.g., 80386/7, PDP-11).

 

OPERATING SYSTEMS:

Windows XP, Windows NT Workstation and Server, Mac OS9/X, Linux Workstation and Server, MSDOS, VAX/VMS. System Administrator (1998-present) for Windows NT 4 Server (RAID disks, UPS, 8mm tape) and mixed Windows/Mac/Linux workstation cluster providing e-mail, web, newsgroups, ftp, and file/printing services over TCP/IP network to 15-person research group; System Administrator (1995-1998) for mixed UNIX/VAX workstation cluster; System Administrator (1988-89) for School of Public Health Computer Center with VAX-780 serving 400+ users.  System Administrator (2000—present) for Home Office Ethernet network of seven Linux/WinXP/NT/Mac OSX computers and three printers.