DOE Chem-Bio Transport

In a multi- National Laboratory effort, dispersion modeling tools are being developed to counter the threat of terrorist chemical and biological (CB) agent attacks in cities. The Chemical and Biological National Security Program (CBNP) has the goal of developing an integrated atmospheric dispersion modeling capability for chemical and biological releases within the complex urban environment. Teams from Argonne, Lawrence Berkeley, Lawrence Livermore, Los Alamos, Pacific Northwest and Sandia National Laboratories are working together on understanding issues on source term characterization, indoor dispersion in subways and buildings, and exterior transport and dispersion in the urban atmosphere. Los Alamos and Livermore are tasked with exterior modeling across regional, urban, and building scales. We are developing both fast response and high fidelity codes across the regime of scales. Model evaluation is a key component of the program. Wind-tunnel experiments, reduced-scale field experiments, and full-scale urban field trials have been carried out with collaborators. These data sets are proving valuable for model testing and improvement. This work is supported and managed by the National Nuclear Security Agency (NNSA) within the Department of Energy (DOE).

Overview Presentations

Two page factsheets:
High Fidelity Urban Modeling (0.2 Mb pdf)
Fast Dispersion Modeling (0.8 Mb pdf)
Fast Wind Modeling (0.1 Mb pdf)
URBAN 2000 Field Expt. (2.2 Mb pdf)
URBAN 2000 Wind Sensors (1.4 Mb pdf)
Wind Tunnel Experiments (1.0 Mb pdf)

Look at summaries of FY00 Exterior Modeling and Prediction research (presented at the DOE CBNP 2000 Annual Review):
Building to Urban Scale (0.2 Mb pdf)
Urban Scale to Regional (0.1 Mb pdf)
Field Experiment (0.3 Mb pdf)

Look at summaries of FY99 Exterior Modeling and Prediction research (presented at the DOE CBNP 1999 Annual Review):
Model Development (0.02 Mb pdf)
Model Applications (0.4 Mb pdf)
Urban Parameterizations (0.2 Mb pdf)
Wind-tunnel Experiments (0.1 Mb pdf)

Learn more about the LANL & LLNL high fidelity multi-scale transport and dispersion modeling work (2000).
Download 5.6 Mb pdf

View movies of HIGRAD model simulated dispersion in downtown Salt Lake City:
3D view (2.8 Mb avi)
Top-down view (2.8 Mb avi)
Side view (2.8 Mb avi)

Go to the USDOE NN-20 Chem-Bio National Security Program website
Visit the WMD Capitol Hill Technology Demo website

Urban CFD:

Flow and turbulence in simulated city canyons: measurements and computations, Zajic, D., H. Fernando, M. Brown, J. Kim, J. Baik, 2003: Int. Symp. on Urb. Climate, Lodz, Poland, 4 pp.

Report on CFD model evaluation using URBAN 2000 Field Experiment data, DeCroix, D. and M. Brown, 2002: IOP 10, Release 1, 26 October, 2000, LA-UR-02-4755, 80 pp, in progress.

Building effects on thermal stratification during the MUST Trials, Pardyjak, E., M. Brown, M. Nelson, D. Zajic, M. Princevac, C. Biltoft, and J. Klewicki, 2002: 4th AMS Symp. Urban Env., Norfolk, VA, May 20-24 2002, LA-UR-02-1247.

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The CFD-generated wind field library approach: A feasibility study, Smith, W. S. and M. Brown, 2002: LA-UR-02-6406, 20 pp.

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A CFD-generated wind field library feasibility study: maximum wind direction interval, Smith, W. S. and M. Brown, 2002: 4th AMS Symp. Urban Env., Norfolk, VA, May 20-24 2002, LA-UR-02-1100.

Evaluation of CFD simulations using laboratory data and urban field experiments, Smith, W. S., M. Brown, D. DeCroix, 2002: 4th AMS Symp. Urban Env., Norfolk, VA, May 20-24 2002, LA-UR-02-1099.

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Report on CFD model evaluation using URBAN 2000 Field Experiment data: IOP 9, Stalker, J.R., D.S. DeCroix, M.J. Brown, 2002: Release 3, 21 October, 2000, LA-UR- 02-6405, 80 pp, in progress.

Chemical Weapon Plume Modeling Support to LANL S-1 Vulnerability Assessments and Response Planning: Model Setup, Usage, and Representative Results, Streit, G. E., 2002: submitted to S-7 for an LA-CP number, 28 pp.

Plume simulations for biological warfare agent surveillance systems, Streit, G. E., W. S. Smith, and D. S. DeCroix, 2002: LA-CP-02-013, 13 pp.

Atmospheric plume dispersion scenarios near a building complex, Streit, G. E. and W. S. Smith, 2002: LA-CP-02-059, 16 pp.

Accelerating convergence in stochastic particle dispersion simulation codes, Picard, Fitzgerald, and Brown, 2001: J. Comp. Physics, v 173, pp 231-255.

Multiscale modeling of air flow in Salt Lake City and the surrounding region, Brown, M., M. Leach, R. Calhoun, W.S. Smith, D. Stevens, J. Reisner, R. Lee, N.-H. Chin, & D. DeCroix, ASCE Structures Congress 2001, Wash. DC, LA-UR-01-509 (2001).
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Validation of two CFD dispersion models using high resolution wind tunnel data, Chan, S. T., D. E. Stevens, and W. S. Smith, Int. Symp. Environ. Hydraulics, Tempe, AZ, Dec. (2001).

Numerical modeling from mesoscale to urban scale to building scale, Brown, M., M. Leach, J. Reisner, D. Stevens, W.S. Smith, H.N. Chin, S. Chan, & R. Lee, 3rd AMS Urban Env. Symp., Davis, CA. LA-UR-00-2579 (2000).
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A CFD model intercomparison and validation using high resolution wind tunnel data, Smith, Reisner, DeCroix, Brown, Lee, Chan, and Stevens, 11th Joint AMS/AWMA Conf. Appl. Air Poll. Met., Long Beach, CA, Jan. 2000, LA-UR-99-5458 (1999).
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GASFLOW simulations of flows in buildings, Müller, Liles, Spore, and Niederauer, 2nd AMS Urb. Env. Symp., Albuquerque, NM, LA-UR-98-4239 (1998).
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Tracer modeling in an urban environment, Reisner, Smith, Bossert, and Winterkamp, 2nd AMS Urb. Env. Conf., Albuquerque, NM, LA-UR-98-3563 (1998).
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Simulations of flow around a cubical building: comparison with towing tank data and assessment of radiatively-induced thermal effects, Smith, W.S., J. Reisner, J. Kao, Atmos. Environ., v 35, pp 3811-3822, LA-UR-00-5208 (2001).
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High fidelity urban scale modeling (Higrad Factsheet), LA-UR-01-1422 (2001).
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Application of the Newton-Krylov method to geophysical flows, Reisner, J., V. Mousseau, and D. Knoll, submitted to Mon. Wea. Rev. (2000).

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Large-eddy and Gaussian simulations of downwind dispersion from large-building HVAC exhaust, DeCroix, Smith, Streit, and Brown, 1999, 11th Joint AMS/AWMA Conf. Appl. Air Poll. Met., Long Beach, CA, Jan. 2000, LA-UR-99-5354 (1999).
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Study and Discussion of Models Applicable to the Transport and Fate Thrust Area of the Department of Energy Chemical and Biological Nonproliferation Program, LA-CP-166 (1997).
Contact us for a copy.

See short descriptions of the models reviewed by the multi-laboratory CBNP T&F team.
Download 0.3 Mb pdf.

Fast Response Modeling:

Implementation of a rooftop recirculation parameterization into the QUIC fast response urban wind model, Bagal, N., E. Pardyjak, and M. Brown, 2004: 5th AMS Urban Env. Conf., Vancouver, B.C., LA-UR-04-5132, 7 pp.

QUIC Quick Start Guide,Bozwell, D. and M. Brown, 2004: v 3.1, 57 pp.

Urban Dispersion – Challenges for fast response modeling, Brown, M., 2004: 5th AMS Urban Env. Conf., Vancouver, B.C., LA-UR-04-5129, 13 pp.

Modeling of flow and dispersion characteristics in typical building configurations with the fast-response model QUIC, Kastner-Klein, P. and J.V. Clark, 2004: 5th AMS Urban Env. Conf., Vancouver, B.C.

QUIC-PLUME Advanced User’s Guide, Williams, M., and M. Brown, 2004: LA-UR-04-0562, 21 pp.

QUIC-PLUME Theory Guide, Williams, M., M. Brown, B. Singh, & D. Boswell, 2004: LA-UR-04-0561, 22 pp.

Testing of the QUIC-PLUME model with wind-tunnel measurements for a high-rise building, Williams, M., M. Brown, D. Boswell, B. Singh, and E. Pardyjak, 2004: 5th AMS Urban Env. Conf., Vancouver, B.C., 10 pp.

Improved upwind cavity parameterization for a fast response urban wind model, Bagal, N., E. Pardyjak, and M. Brown, 2003: AMS Conf. on Urban Zone, Seattle, WA, 3 pp.

Testing and implementation of urban and plant canopy parameterizations into the Quick Urban & Industrial Complex (QUIC) dispersion modeling system, Booth, T., 2003: Univ. of Utah Technical Report, 8 pp.

Graphical user interface development for a fast response urban wind model, Booth, T., Parker, A. and Pardyjak, E.R., 2003: 17th Conference for Undergraduate Research, March 13-15, Salt Lake City, UT.

QUIC Quick Start Guide, v 2.0, Bozwell, D. and M. Brown, 2003: 25 pp.

QUIC-URB validation study for 3D cubical building array, Gowardhan, A., 2003: Univ. of Utah Technical Report, 8 pp.

Evaluation of the fast response model QUIC-URB based on wind-tunnel flow measurements in idealized street canyons, Kastner-Klein, P., E.R. Pardyjak, and M. Brown, 2003: abstract for the 11th Conf. on Wind Engineering, June 2-5 2003, Lubbock, TX.

Improved velocity deficit parameterizations for a fast response urban wind model, Pardyjak, E.R., N. L. Bagal and M. J. Brown, 2003: AMS Conf. on Urban Zone, Seattle, WA, LA-UR-03-8512.

Validation testing of an urban Lagrangian dispersion model, Singh, B., M. Williams, E. Pardyjak, M. Brown, 2003: AMS Conf. on Urban Zone, Seattle, WA, LA-UR-03-8511, 4 pp.

Fast response modeling of a two building urban street canyon, Pardyjak, E. and M. Brown, 2002: 4th AMS Symp. Urban Env., Norfolk, VA, May 20-24 2002, LA-UR-02-1217.

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QWIC-PLUME User's Guide, Williams, M. D., 2002: LA-UR-02-375.

Development of a dispersion model for flow around buildings, Williams, M. D., M. J. Brown, and E. R. Pardyjak, 2002: 4th AMS Symp. Urban Env., Norfolk, VA, May 20-24 2002, LA-UR-02-0839.

QWIC-URB & QWIC-PLUME: Fast Response Urban Dispersion Modeling System (Factsheet), LA-UR-02-2559 (2002).
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Evaluation of a fast-response urban wind model - comparison to single-building wind-tunnel data, Pardyjak, E. and M. Brown, Int. Soc. Environ. Hydraulics, Tempe, AZ, LA-UR-01-4028 (2001).
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QWIC-URB: Fast Response Urban Wind Model (Factsheet), LA-UR-01-2148 (2001).
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Urban dispersion studies for determination of the sensor upwind area of influence, Streit, G., M. Brown, M. Williams, and E. Pardyjak, LA-CP-00-219 (2000). Contact us for a copy

QWIC-2D DWM v1.0 User's Guide, Pardyjak, E. and M. Brown, LA-UR-00-2578 (2000).
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First responders "rules of thumb" for toxic airborne releases in urban environments, Brown and Streit, LA-UR-98-4539 (1998).
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Field Experiment:

Street canyon flow patterns in a horizontal plane: Measurements from the Joint Urban 2003 Field Experiment, Brown, M., H. Khalsa, M. Nelson, and D. Boswell, 2004: 5th AMS Urban Env. Conf., Vancouver, B.C., LA-UR-04-5127, 12 pp.

Reconstruction of airborne biological agent events: The Houston incidents, October 2003, Brown, M., S. Linger, T. McPherson, G. Streit, and M. Williams, 2004: LA-CP-04-0004, 45 pp.

Vertical profiles of mean flow and turbulence characteristics in a downtown street canyon measured during Joint Urban 2003, Kastner-Klein, P. and J.V. Clark, 2004: 5th AMS Urban Env. Conf., Vancouver, B.C., 9 pp.

The National Cathedral, Washington D.C.: Bio-Watch Site Protection, Streit, G., M. Williams, S. Linger, M. Brown, 2004: LA-CP-04-0585, 13 pp.

Joint URBAN 2003 Street Canyon Experiment, Brown, M., D. Boswell, G. Streit, M. Nelson, T. McPherson, T. Hilton, E. R. Pardyjak, S. Pol, P. Ramamurthy, B. Hansen, P. Kastner-Klein, J. Clark, A. Moore, D. Walker, N. Felton, D. Strickland, D. Brook, M. Princevac, D. Zajic, R. Wayson, J. MacDonald, G. Fleming, D. Storwold, 2003: AMS Conf. on Urban Zone, Seattle, WA, LA-UR-03-8454, 12 pp.

Variation of flow within the MUST building array, Nelson, M., M. Brown, D. Zajic, and J. Klewicki, 2003: AMS Conf. on Urban Zone, Seattle, WA, 3 pp.

Area-averaged profiles over the Mock Urban Setting Test array, Nelson, M., M. Brown, E.R. Pardyjak, J. Klewicki, 2003: AMS Conf. on Urban Zone, Seattle, WA, 5 pp.

Analyses in support of the Scarlet Cloud exercise (Drafts 10 & 2), Streit, G., M. Williams, and M. Brown, 2003: LA-CP-03-0874, 20 pp.

BW Environmental Surveillance Program, Wehner, T., G. Streit, and M. Williams, 2003: LA-CP-03-0181, 28 pp.

Mock Urban Settings Test: Wind and Temperature Measurements Data Report for ASU, LANL, and UU Instrumentation, Brown, M., M. Nelson, D. Zajic, E. Pardyjak, M. Princevac, G. Streit, and D. DeCroix, 2002: In Progress, 23+ pp.

Overview of URBAN 2000: A Multi-Scale Field Study of Dispersion Through an Urban Environment, Allwine, K. J., J. H. Shinn, G. E. Streit, K. L. Clawson, and M. J. Brown, 2002: Bull. Amer. Meteor. Soc. 83(4), 521-536.

Building array drag characterization experiments: Part II, Van Otten, A. and R. Anderson, 2002: Univ. Utah Technical Report, 42 pp.

The MUST Field Experiment: mean and turbulent wind fields at the upstream edge of a building array, Brown, M., E. Pardyjak, D. Zajic, M. Princevac, G. Streit, and C. Biltoft, 2002: 4th AMS Symp. Urban Env., Norfolk, VA, May 20-24 2002, LA-UR-02-1248.

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Observational analysis of the URBAN2000 field program IOP-10, 25-26 October 2000, for model initialization and comparison, DeCroix, D., 2002: 4th AMS Symp. Urban Env., Norfolk, VA, May 20-24 2002, LA-UR-02-1086.

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Large-eddy simulation of urban dispersion during the URBAN2000 field program IOP-10, 25-26 October 2000, DeCroix, D., 2002: 4th AMS Symp. Urban Env., Norfolk, VA, May 20-24 2002, LA-UR-02-1134.

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The Salt Lake City DOE CBNP URBAN Field Experiment of Fall 2000: Urban Wind and Temperature Measurements Data Report, Streit, G., E. Pardyjak, M. Brown, D. DeCroix, T. McPherson, W. Smith, LA-UR-01-950 (2001).
Download 8.3 Mb pdf (Part 1)
Download 11.2 Mb pdf (Part 2)

Sky View Factor Measurements in downtown Salt Lake City - Data Report for DOE CBNP URBAN Field Experiment, Oct. 2000, Brown, M. and S. Grimmond, LA-UR-01-1424 (2001).
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Temperature measurements for investigation of the Salt Lake City Urban Heat Island - Data Report for the DOE CBNP URBAN Field Experiment, Oct. 2000, Brown, M. and E. Pardyjak, LA-UR-01-3176 (2001).
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URBAN 2000 Field Experiment: LANL Wind Sensors (Factsheet), LA-UR-01-2611 (2001).
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Comparison of Methodologies for Computing Sky View Factor in Urban Environments, Brown, M., S. Grimmond, and C. Ratti, Int. Soc. Environ. Hydraulics, Tempe, AZ, LA-UR-01-4107 (2001).
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Temperature measurements collected from an instrumented van in Salt Lake City, Utah as part of URBAN 2000, Brown, M. and E. Pardyjak, Int. Symp. Environ. Hydraulics, Tempe, AZ, LA-UR-01-4029 (2001).
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The DOE URBAN field program for 2000-2004, Shinn, J.H., K.J. Allwine, and G.E. Streit, 3rd AMS Urban Env. Symp., Davis, CA, LA-UR-01-1467 (2000).
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Go to the PNNL VTMX website.

Go to the Univ. of Utah VTMX website.

Wind Tunnel:

Comparison of Centerline Velocity Measurements Obtained Around 2D and 3D Building Arrays in a Wind Tunnel, Brown, M., R. Lawson, D. DeCroix, R. Lee, Int. Soc. Environ. Hydraulics, Tempe, AZ, LA-UR-01-4138 (2001).
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Validation of two CFD dispersion models using high resolution wind tunnel data, Chan, S. T., D. E. Stevens, and W. S. Smith, Int. Symp. Environ. Hydraulics, Tempe, AZ, Dec. (2001).

Measurement of velocity and concentration fields in arrays of 2D and 3D buildings in a simulated neutrally-buoyant atmospheric boundary layer, Lawson, R., S. Perry, R. Thompson, USEPA Data Report (2000).

Spatial Variability of Mean Flow and Turbulence Fields in Street Canyons, Kastner-Klein, P., M. W. Rotach, M. J. Brown, E. Fedorovich and R. E. Lawson, 3rd AMS Urban Env. Symp., Davis, CA. LA-UR-00-3025 (2000).
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Mean flow and turbulence measurements around a 2-d array of buildings in a wind tunnel, Brown, Lawson, DeCroix, and Lee, 1999, 11th Joint AMS/AWMA Conf. Appl. Air Poll. Met., Long Beach, CA, Jan. 2000, LA-UR-99-5395 (1999).
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See movies of building dispersion experiments in the USEPA wind tunnel:
low release (0.3 Mb mpg)
elevated release (0.4 Mb mpg)
building cluster (0.2 Mb mpg)

A CFD model intercomparison and validation using high resolution wind tunnel data, Smith, Reisner, DeCroix, Brown, Lee, Chan, and Stevens, 11th Joint AMS/AWMA Conf. Appl. Air Poll. Met., Long Beach, CA, Jan. 2000, LA-UR-99-5458 (1999).
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Flow and turbulence in urban canopies, Zajic, D., H. Fernando, M. Princevac, and R. Calhoun, 2004: 5th AMS Urban Env. Conf., Vancouver, B.C., 6 pp.

Urban parameterizations for mesoscale models, Brown, M., Mesoscale Atmospheric Dispersion, Z. Boybeyi, ed., WIT Press. LA-UR-99-5329 (2001).
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A Sensitivity Study of the Urban Effect on a Regional-Scale Model: An Idealized Case, Chin, H.N., M.J. Leach, and M.J. Brown, 3rd AMS Urban Env. Symp., Davis, CA. LA-UR-00-3026 (2000).

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Urban canopy parameterizations for use in mesoscale meteorological models, Brown and Williams, 2nd AMS Urban Env. Symp., Albuquerque, NM, LA-UR-98-3831 (1998).
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The effect of urban canopy parameterizations on mesoscale meteorological model simulations in the Paso del Norte area, Brown and Williams, LA-UR-97-287 (1997) - 90th Annual AWMA Meeting, Toronto.
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Urban Databases:

Urban morphological analysis for mesoscale meteorological and dispersion modeling applications: Current issues, Burian, S., M. Brown, J. Ching, M. Cheuk, M. Yuan, W. Han, and A. McKinnon, 2004: 5th AMS Urban Env. Conf., Vancouver, B.C., LA-UR-04-5130, 10 pp.

Evaluation of the accuracy of national landuse datasets for the development of urban canopy parameterizations, McPherson, T., M. Brown, S. Burian, 2004: 5th AMS Urban Env. Conf., Vancouver, B.C., 11 pp.

Determination of the spatial and temporal distribution of population for air toxics exposure assessments, McPherson, T. N. and M. J. Brown, 2003: 5th AMS Urban Env. Conf., Vancouver, B.C., 11 pp.

Assessment of methods for creating a national building statistics database for atmospheric dispersion modeling, Velugubantla, S., S. Burian, M. Brown, W. Han, A. McKinnon, and T. McPherson, 2004: 5th AMS Urban Env. Conf., Vancouver, B.C., LA-UR-04-5131, 7 pp.

Morphological analyses using 3D building databases: Houston, Texas, Burian, S., W. Han, and M. Brown, 2003: LA-UR-03-, 66 pp.

Morphological analyses using 3D building databases: Albuquerque, New Mexico, Burian, S., S. Maddula, S. Velugubantla, and M. Brown, 2002: LA-UR-03-6198, 73 pp.

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Morphological analyses using 3D building databases: Portland, Oregon, Burian, S., S. Velugubantla, K. Chittineni, and M. Brown, 2002: LA-UR-02-6725, 64 pp.

U.S. day and night population database (Revision 2.0) – Description of methodology, McPherson, T. and M. Brown, 2003: LA-CP-03-0722, 30 pp.

Estimating daytime and nighttime population distributions in U.S. cities for emergency response activities. McPherson, T. N. and M. J. Brown, 2003: Preprints, 84th AMS Annual Meeting, AMS, Seattle, WA.

An overview of building morphological characteristics derived from 3D building databases, Brown, M., S. Burian, S. Linger, S. Velugubantla, and C. Ratti, 2002:4th AMS Symp. Urban Env., Norfolk, VA, May 20-24 2002, LA-UR-02-1090.

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Building height characteristics in three US cities, Burian, S., M. Brown, S. Velugubantla, 2002: 4th AMS Symp. Urban Env., Norfolk, VA, May 20-24 2002, LA-UR-02-1089.

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Roughness length and displacement height derived from building databases, Burian, S., M. Brown, S. Velugubantla, 2002: 4th AMS Symp. Urban Env., Norfolk, VA, May 20-24 2002, LA-UR-02-1218.

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Morphological analyses using 3D building databases: Los Angeles, California, Burian, S., M. Brown, S. Linger, 2002: LA-UR-02-0787, 73 pp.

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Morphological analyses using 3D building databases: Phoenix, Arizona, Burian, S., S. Velugubantla, and M. Brown, 2002: LA-UR-02-6726, 65 pp.

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Morphological analyses using 3D building databases: Salt Lake City, Utah,Burian, S., S. Velugubantla, and M. Brown, 2002:LA-UR-03-6197, 67 pp.

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Evaluating the accuracy of urban footprints derived from National land use datasets, McPherson, T. and M. Brown, 2002: LA-UR-02-6696, 36 pp.

Urban Data Sources for the DOE NNSA Chemical and Biological National Security Program (CBNP), McPherson, T., S. Burian, and M. Brown, 2002: LA-UR-02-6425, 39 pp.

Evaluation of Land use/land cover datasets for urban watershed modeling. Burian, S.J., Brown, M.J., and McPherson, T.N., 2002: Water Science and Technology, 45(9): 269-276, LA-UR-01-4549.

Data sources for the Albuquerque Virtual City Project, Linger, S., 2002: LA-UR-02-6634, 31 pp.

Analysis of 3D urban databases with respect to pollution dispersion for a number of European and American cities, Ratti, C., S. Di Sabatini, R. Britter, M. Brown, F. Caton, and S. Burian, 2002: Water, Soil, and Air Poll.: Focus, 2, 459-469.

Integrated Environmental Modeling of the Urban Ecosystem, Submitted to Earth Sciences in the Cities, McPherson, T. N., S. J. Burian, M. J. Brown, G. E. Streit, and H. J. Turin, 2002: an AGU Monograph, edited by G. Heiken, R. Fakundiny, and J. Sutter.LA-UR-01-2348.

Environmental modeling and assessment using detailed urban databases, from Earth Sciences in the Cities, Burian, S., T. McPherson, M. Brown, G. Streit, and H.J. Turin, 2002: AGU Monograph, Heiken, Fakundiny, and Sutter, eds. LA-UR 01-2393.

An overview of building morphological characteristics derived from 3D building databases, M. Brown, S. Burian, S. Linger, S. Velugubantla, and C. Ratti, 4th AMS Symp. Urban Env., Norfolk, VA, LA-UR-02-1090 (2002).
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Building height characteristics in three US cities, S. Burian, M. Brown, S. Velugubantla, 4th AMS Symp. Urban Env., Norfolk, VA, LA-UR-02-1089 (2002).
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Roughness length and displacement height derived from building databases, S. Burian, M. Brown, S. Velugubantla, 4th AMS Symp. Urban Env., Norfolk, VA, LA-UR-02-1218 (2002).
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Morphological analyses of downtown Los Angeles building data, S. Burian, M. Brown, and S. Linger, LA-UR-02-0787, 68 pp (2002).
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Analysis of 3-d urban databases with respect to air pollution dispersion for a number of European and American cities, Ratti, C., S. Di Sabatino, R. Britter, M. Brown, F. Caton, S. Burian, 3rd Int. Conf. Urban Air Quality, Loutraki, Greece, LA-UR-01-1423 (2001).
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Summary of Los Angeles, California Building and Land Use/Land Cover Data, S. Burian and M. Brown, LA-UR-01-4055 (2001).

Analysis Of Urban Databases With Respect To Mesoscale Modeling Requirements, Brown, M., S. Burian, and C. Müller, 3rd AMS Urban Env. Symp., Davis, CA. LA-UR-00-2580 (2000).
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View a fly-through movie of our 3-d Salt Lake City building data:
SLC fly-through (0.7 Mb mpg)

Other:

A study of the Oklahoma City urban heat island using ground measurements and remote sensing, Brown, M., A. Ivey, T. McPherson, D. Boswell, and E.R. Pardyjak, 2004: 5th AMS Urban Env. Conf., Vancouver, B.C., 8 pp.

Development of a probability of detection methodology for assessing the performance of a biological agent detector network for urban areas, May, W., T. Wehner, G. Streit, M. Brown, and M. Williams, 2003: LA-CP-03-0386, 30 pp.

BASIS DSU Layout Recommendations for a US City (Case A), Brown, M., 2002: LA-CP-02-525, 10 pp.

Pathways for the Oxidation of Sarin in Urban Atmospheres, Elliot, S., G. Streit, J. Gaffney, J. Bossert, M. Brown, J. Reisner, and L. McNair, 1999, Environ. Sci. & Pollut. Res.-International, 6, 103-105 (1999).
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First responders "rules of thumb" for toxic airborne releases in urban environments, Brown and Streit, LA-UR-98-4539 (1998).
Download 2.4mb pdf