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Conference proceedings


2005

Ahmad, N., Z. Boybeyi, 2005: Advection-Diffusion Equation on Unstructured Adaptive Grids. NOAA/EPA Symposium on Air Quality Modeling and Its Applications. September 20-21, 2005. Durham, North Carolina.

Ahmad, N., Z. Boybeyi, 2005: Application of the HLLC Riemann Solver for Atmospheric Flow Simulations. 15th Conference on Atmospheric and Oceanic Fluid Dynamics. 13-17 June. Cambridge, Massachusetts.

Ahmad, N., Z. Boybeyi, 2005:
Solution-Adaptation Applied to Eulerian Transport. ASAAQ 2005, 27-29 April, San Francisco, California.

Ahmad, N., Z. Boybeyi, R. Lohner and R.A. Sarma, 2005: A Godunov-type finite-volume scheme for flows on the meso- and micro-scales. 43rd AIAA Aerospace Sciences  Meeting and Exhibit. 10-13 January, Reno, Nevada.


2004

Ahmad, N., Z. Boybeyi and R.A. Sarma, 2004: Simulations of flow over idealized urban street canyons. August, Vancouver, Canada.

Bacon, D.P., N. N. Ahmad, Z. Boybeyi. T. J. Dunn, M. S. Hall, P. C. S. Lee, D. E. Mays, R. A. Sarma, M. D. Turner, T. Wait, 2004: Global to Local Numerical Weather Prediction: The Ultimate Multiscale Problem. 8th Annual George Mason University Conference on Transport and Dispersion Modeling, July 13-15, Fairfax, Virginia.

Boybeyi, Z., 2004: A Sensitivity Study of Linked Mesoscale Meteorological and Atmospheric Transport and Dispersion Modeling Systems. 8th Annual George Mason University Conference on Transport and Dispersion Modeling, July 13-15, Fairfax, Virginia.

Boybeyi, Z.,  J. Chang, P. Franzese, R. Fry, S. Hanna, N. Platt,  S. Warner, 2004: An Overview of Coordinated Independent Evaluation of Urban HPAC. 8th Annual George Mason University Conference on Transport and Dispersion Modeling, July 13-15, Fairfax, Virginia.

Chang, J., S. R. Hanna, Z. Boybeyi & P. Franzese, 2004: Sensitivities of Evaluation Results to Data Acceptance and Pairing Criteria. 8th Annual George Mason University Conference on Transport and Dispersion Modeling, July 13-15, Fairfax, Virginia.

Hanna, S.R.,  J.C. Chang, Z. Boybeyi, P. Franzese, 2004: Statistical and Scientific Evaluation of Urban HPAC Using Urban 2000 Field Data. 8th George Mason University Conference on Transport and Dispersion Modeling, July 13-15, Fairfax, Virginia.

Hou, D., Z. Boybeyi, 2004: Sensitivity in Simulations of Weakly Forced Circulations to the Initial Conditions in Soil Variables. 8th Annual George Mason University Conference on Transport and Dispersion Modeling, July 13-15, Fairfax, Virginia.

Ma, Y., Z. Boybeyi, D. Hou, 2004:
Sensitivities of regional soil moisture to the numerical predictions of mesoscale circulation and meteorological variables near surface. 8th Annual George Mason University Conference on Transport and Dispersion Modeling, July 13-15, Fairfax, Virginia.

Novakovskaia, E., Z. Boybeyi, 2004: Sensitivity Analysis Using a Soil-Vegetation Model. 8th Annual George Mason University Conference on Transport and Dispersion Modeling, July 13-15, Fairfax, Virginia.


2003

Ahmad, N. and A. Sarma,  2003: A Higher-order Upwind Scheme for the Advection-Diffusion Equation on Unstructured Meshes. 7th Annual George Mason University Conference on Transport and Dispersion, Fairfax, Virginia.


2002

Ahmad, N., D. Bacon, Z. Boybeyi, T. Dunn, S. Gopalakrishnan, M. Hall, P. Lee, D. Mays, A. Sarma, M. Turner, and T. Wait, 2002: Unstructured Adaptive Grid Generation for Geophysical Flow Simulations. Proceedings of the 8th International Conference on Numerical Grid Generation in Computational Field Simulation, held at Honolulu, Hawaii. pp. 457-466. Edited by B. K. Soni, et al.


Boybeyi Z., D. P. Bacon, and M. Kaplan, 2002: The Use of Adaptive (Targeted) Observations in Numerical Weather Prediction. Land Satellite Information IV, ISPRS Commission Symposium. November 10-15, Denver, Colorado.

Boybeyi Z., and Mary S. Hall, 2002: An urban parameterization scheme to account for urban impact in OMEGA. Coastal Environment, September 16-18, Rhodes, Greece.

Boybeyi Z., and Mary S. Hall, 2002: An urban parameterization scheme to account for urban Impact in OMEGA. 6th Annual George Mason University Transport and Dispersion Modeling Workshop, July 10-11, Vienna, Virginia.

Boybeyi Z., and Mary S. Hall, 2002: Impact of large areas on coastal circulations. Fourth International Conference on Environmental Problems in Coastal Regions: COASTAL ENVIRONMENT, September 16-18, Rhodes, Greece.

Camelli, F., R. Lohner, 2002: Combining the Baldwin Lomax and Smagorinsky turbulence models to calculate flows with separation regions. AIAA 2002-0426. Reno, NV.

Camelli, F., O. Soto, R. Lohner, W. C. Sandberg, R. Ramamurti, 2002: LPD17 topside flow and temperature study with an implicit monolithic scheme. AIAA 2002-0969. Reno, NV.

Cebral, F.J., F. Camelli, R. Lohner, 2002: Unstructured grid generation over buildings intersecting terrain data using a feature-preserving volumetric technique. AIAA 2002-0860. Reno, NV.

Chang, J.C., 2002:
Comparison of dispersion model uncertainty components. Proc. 12th Joint Conference on the Application of Air Pollution Meteorology with the A&WMA, American Meteorological Society, Boston, MA.

Chang, J.C., 2002: Implementation of ASTM D6589 procedures in the new BOOT model evaluation software. 8th International Conference on Harmonization within Atmospheric Dispersion Modeling for Regulatory Purposes, Sofia, Bulgaria.

Chang, J.C, K. Chayantrakom, and S.R. Hanna, 2002:  CALPUFF, HPAC and VLSTRACK evaluation with the Over-Land Alongwind Dispersion (OLAD) field data. 9th International Conference on the Modeling, Monitoring and Management of Environmental Problems. Bergen, Norway.


Franzese, P. and M.S. Borgas, 2002: A quasi-one-dimensional Lagrangian stochastic model of relative dispersion in turbulent flows. 12th Joint Conference on the Applications of Air Pollution Meteorology with the A&WMA, Norfolk, Virginia, 20-24 May 2002.

Hanna, S., R. Britter and P. Franzese, 2002: Simple screening models for urban dispersion, 8th Conference on Harmonization within Atmospheric Dispersion Modeling for Regulatory Purposes, Sofia, Bulgaria, 14-17 October 2002.

Hanna, S.R., R. Britter and P. Franzese, 2002: Another simple urban dispersion model. 12th Joint Conference on the Applications of Air Pollution Meteorology with the A&WMA, Norfolk, Virginia, 20-24 May 2002.

Hou, D. and Z. Boybeyi, 2002: Numerical investigation of Chesapeake Bay experiment. 6th Annual George Mason University Transport and Dispersion Modeling Workshop, July 10-11, Vienna, Virginia.

Lehmann, E., P. Franzese, S.R. Hanna, R. Britter, and N. Hamer, 2002: Testing and development of comprehensive methodologies for urban dispersion models and their relation to users needs requirements. 12th Joint Conference on the Applications of Air Pollution Meteorology with the A&WMA, Norfolk, Virginia, 20-24 May 2002.



2001

Boybeyi, Z., 2001: Urban scale dispersion modeling (computational fluid dynamics modeling) at the CHARM program. Urban Dispersion Model Working Group Workshop, June 19-20, Salt Lake City, Utah.

Boybeyi, Z., D.P. Bacon, T.J. Dunn and R.A. Sarma, 2001: Analysis of two European dispersion events with OMEGA: ETEX and Alegciras event. 5th Annual George Mason University Transport and Dispersion Modeling Workshop, July 18-19, Vienna, Virginia.

Boybeyi, Z., S. Hanna and M. Black, 2001: An overview of the CHARM program. 5th Annual George Mason University Transport and Dispersion Modeling Workshop, July 18-19, Vienna, Virginia.

Hanna, S.R., and J.C. Chang, 2001: Examples of evaluations of new models with field data. Conference on Guideline on Air Quality Modeling, A New Beginning, Newport, Rhode Island; Air and Waste Management Association, Pittsburgh, Pennsylvania.


Hanna, S.R. and R.E. Britter, 2001: The Effect of Roughness Obstacles on Flow and Dispersion in Urban and Industrial Areas. Proceedings, 7th Internat. Conf. on Harmonization within Atmospheric Dispersion Modeling for Regulatory Purposes, Belgirate, IT, May, 2001.

Hanna, S.R., R.E. Britter, and P. Franzese, 2001: The Effect of Roughness Obstacles on Flow and Dispersion at Industrial and Urban Sites. To be published by CCPS/AIChE. 3 Park Ave., New York, NY 10016-5991, 155 pages.


2000

Boybeyi, Z., D.P. Bacon, T.J. Dunn and R.A. Sarma, 2000: An evaluation of OMEGA against ETEX. July 11-12, Vienna, Virginia.

Camelli, F., R. Lohner. 2000: Flow and dispersion around buildings: and application with FEFLO. Proceedings for ECCOMAS 2000, European Congress on Computational Methods, Barcelona, Spain 2000.

Camelli, F., R. Lohner. 2000: Reproducing the Prairie Grass experiment with CFD techniques. Annual GMU Transport and Dispersion Modeling Workshop, 2000.

Chang, J.C., P. Franzese and S.R. Hanna, 2000: Evaluation of CALPUFF, HPAC, and VLSTRACK with the Dipole Pride 26 Field Data. Proceedings, 11th Joint Conf. on the Applications of Air Pollution Meteorology with the AWMA. Am. Meteorol. Soc., 45 Beacon St., Boston, MA 02108, pp. 340-346.

Franzese, P., and M.S. Borgas, 2000: A relative dispersion model for turbulent flows and concentration fluctuations in clouds of contaminant. FADA Workshop (Fluctuations in Atmospheric Dispersion and their Applications), Sheffield, U.K, 9-12 Sept. 2000.

Hanna, S.R. and R.E. Britter, 2000: Effects of Urban and Industrial Roughness Obstacles on Maximum Pollutant Concentrations. Proceedings, Millenium NATO/CCMS Internat. Tech. Meeting on Air Poll. Meteorol. and Its Applic., Boulder CO, 14-19 May 2000.

Hanna, S.R., B.A. Egan, J. Purdum, and J. Wagler, 2000: Comparison of AERMOD, ISC3, and ADMS Model Performance with Five Field Data Sets. Proceedings, Air and Waste Management Assoc. 2000 Annual Conference, Salt Lake City UT, 20-25 June 2000.

Hanna, S.R., Z. Lu, H.C. Frey, N. Wheeler, J. Vukovich, S. Arunachalam, M. Fernau, and D.A. Hansen, 2000: Monte Carlo Studies of Uncertainties in UAM-V Predictions for the July 1995 OTAG Period. Proceedings, 11th Joint Conf. on the Applications of Air Pollution Meteorology with the AWMA. Am. Meteorol. Soc., 45 Beacon St., Boston, MA 02108, pp. 111-115.

Tehranian, S., Lohner, R. and S. Hanna, 2000: Numerical Simulation of Airflow in the Vicinity of Several Rectangular-Shaped Buildings and Airflow and Dispersion around an L-Shaped Building. Proceedings, ENVIROSOFT 2000, Eighth Internat. Conf. on Development and Applic. of Computer Techniques to Environmental Studies, Bilbao, Spain, 28-30 June 2000.


1999

Boybeyi, Z., D.P. Bacon and R.A. Sarma, 1999: Recent validation of the Operational Multi-Scale Environment Model with Grid Adaptivity. 79th American Meteorological Society Annual Meeting, 13th Conference of Boundary Layers and Turbulence, Jan 10-15, Dallas, Texas.

Hanna, S.R., 1999: Parameterizing Urban Climate in Dispersion Models. Keynote Address Published in Proceedings of Internat. Congress of Biometeorol. and Internat. Conf on Urban Climatology, Sydney, Au, 11-15 Nov. 1999.

Hanna, S.R. and J.C. Chang, 1999: Testing of the HEGADAS Model using the Kit Fox Field Data. Proceedings, Int. Conf. and Workshop on Modeling the Consequences of Accidental Releases of Hazardous Materials. Am. Inst. of Chem. Eng., 3 Park Ave., New York, NY 10016-5991, pp. 229-246.

Hanna, S.R. and J.M. Davis, 1999: Use of Monte Carlo uncertainty analysis to evaluate differences in observed and predicted ozone concentrations. Proceedings, 6th Internat. Conf. on Harmonization within Atmospheric Dispersion Modeling for Regulatory Purposes, Rouen, FR, 11-14 October 1999.

Hanna, S.R., B.A. Egan, J. Purdum, and J. Wagler, 1999: Evaluation of the ADMS, AERMOD, and ISC3 Dispersion Models with the OPTEX, Duke Forest, Kincaid, Indianapolis, and Lovett Field Data Sets. Proceedings, 6th Internat. Conf. on Harmonization within Atmospheric Dispersion Modeling for Regulatory Purposes, Rouen, FR, 11-14 October 1999.

Hanna, S.R., and P. Franzese, 1999: Along-wind dispersion observed in three field studies. 13th Symposium on Boundary Layers and Turbulence, AMS, Dallas, Texas, 10-15 January 1999.

Sarma, A., N. Ahmad, D.P. Bacon, Z. Boybeyi, T. Dunn, M. Hall and P.C.S. Lee, 1999: Application of adaptive grid refinement to plume modeling. Air Pollution VII.  WIT Press, Southampton, 59-68.


1998

Ahmad, N., D.P. Bacon, Z. Boybeyi, T.J. Dunn, M. Hall, D.E. Mays, A. Sarma and M.D. Turner, 1998: A Solution-Adaptive Grid Generation Scheme for Atmospheric Flow Simulations. Proceedings of the 6th International Conference on Numerical Grid Generation in Computational Field Simulation, held at Greenwich, England. pp. 327-335. Edited by M. Cross, et al.


Franzese, P., A.K. Luhar and M.S. Borgas, 1998: An approximation for the acceleration term in Lagrangian stochastic models of dispersion in the convective boundary layer. 10th Joint Conference on the Applications of Air Pollution Meteorology with the A&WMA, 78th AMS Annual Meeting, Phoenix, Arizona, 11-16 January 1998.

Franzese, P., and L. Zannetti, 1998: Hamiltonian Modeling of Dispersion in Complex Topography. Proceedings 16th International Conference on Numerical Methods in Fluid Dynamics, Arcachon 1998, Lecture Notes in Physics N. 515, Springer-Verlag, 159-164.


1997

Bacon, D.P., C. Agritellis, Z. Boybeyi, T.J. Dunn, M. Hall, R.A. Sarma, M.D. Turner, S. Young, J. Zack, 1997: Validation of OMEGA for hazardous dispersal simulation. April 22-25, San Francisco California , 369-372.

Boybeyi, Z., D.P. Bacon, N. Ahmad, T.J. Dunn, M. Hall, R.A. Sarma, M.D. Turner, S. Young, J. Zack, 1997: Recent validation of The Operational Multi-Scale Environment Model with Grid Adaptivity. 12th Symposium on Boundary Layers and Turbulence, July 28-August 1, Vancouver, Canada.

Boybeyi, Z., D.P. Bacon, T.J. Dunn, M. Hall, R.A. Sarma, M.D. Turner, 1997: Numerical simulation of long-range transport and diffusion of the ETEX experiment with OMEGA. May 12-16, Vienna, Austria.


1996

Bacon, D.P., Z. Boybeyi, P. Boris, T.J. Dunn, M. Hall, R.A. Sarma, S. Young, J. Zack, 1996: An overview of the Operational Multi-scale Environment Model with Grid Adaptivity. 11th Conference on Numerical Weather Prediction, August 19-23, Norfolk, Virginia.

Boybeyi, Z., D.P. Bacon, P. Boris, T.J. Dunn, M. Hall, R.A. Sarma, S. Young, J. Zack, 1996: System aspect of the Operational Multi-scale Environment Model with Grid Adaptivity. 15th Conference on Weather Analysis and Forecasting, August 19-23, Norfolk, Virginia.


1994

Boybeyi, Z., D.P. Bacon, T.J. Dunn, M.D. McCorcle, S.E. Peckham, R.A. Sarma, S. Young, J. Zack, 1994: An overview of the Operational Multi-scale Environment Model with Grid Adaptivity (OMEGA) Part II: Simulations of local circulations. 10th Conference on Numerical Weather Prediction, July 17-22, Portland, Oregon.

Boybeyi, Z., S. Raman, S. Rao, M.P. Singh, 1994: A numerical investigation of low wind speed diffusion in tropics. 4th International Conference on Atmopsheric Sciences and Applications to Air Quality (ASAAQ), May 30-June 2, Seoul, Korea.


1993

Boybeyi, Z., S. Raman, 1993: The use of a mesoscale meteorological model for evaluations of atmospheric dispersion. Conference on Urban Air Quality Management August 9-10, Bangalore, India.

Boybeyi, Z., S. Raman, P. Zanetti, 1993: A coupled model applied to the Bhopal gas accident. International Conference on Sustainable Development Strategies and Global/Regional/Local Impacts on Atmospheric Composition and Climate, January 25-30, New Delhi, India, 250-253.

Raman, S., Z. Boybeyi, J. Estupinan, 1993: Comparison of hydrostatic mesoscale model results CaPE observations. CaPE Workshop, NCAR, October 25-26, Boulder, Colorado.


1991

Boybeyi, Z., R. Bornstein, F. Ludwig, 1991: Further developments of the adaptive volume plume model. 7th AMS Conference on Air Pollution Meteorology January 14-18, New Orleans, Luisiana, 373-374.

Boybeyi, Z., S. Raman, Ching-Yuang Huang, 1991: Numerical simulation of sea breezes over Florida peninsula using a three-dimensional planetary boundary layer model. 5th Conference on Meteorology and Oceanography of the Coastal Zone, May 6-10, Miami, Florida, 11-16.


1990

Bornstein, R. Z. Boybeyi, F. Ludwig, 1990: Further developments of the adaptive volume plume model. Proceedings 18th ITM on Air Pollution Modeling and its Applications , Vol. 2, Vancouver, Canada, 631-638.


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