SEVENTH JOINT CONFERENCE

ON APPLICATIONS OF

AIR POLLUTION METEOROLOGY WITH AWM>

Jan. 14-18,1991 New Orleans, La

Sponsored By

AMERICAN METEOROLOGICAL SOCIETY

AIR AND WASTE MANAGEMENT ASSOCIATION

Front Cover-. Space-height crow sections of aerosol and ozone from the surface to 3 km as derivedfrom measurements using the NASA L*ngley Research Center airborne UV DIAL system. In thetop panel the mixed layer is dearly in evidence as the darker region between 13 to 2 km above thesurface from the afternoon flight over central North Carolina on July 22,1981. Convective clouds(many of which protrude from the mixed layer into the free troposphere) are shown as whitevertical columns. The aerosol layers corresponding to the air mass shown in the top panel, butsampled in the late evening, are displayed in the middle panel. The layered structure in the middleto top portion of the cross-section is believed to be the aerosols from remnants of dissipated cloudsthat were active during the afternoon. The bottom panel displays in black the regions of ozone inexcess of background values that are displaced from the mixed layer, and also a consequence ofconvective cloud transport. Details are in Ching et aL, 1988, Atmos. Env. 22 (2).

All Rights Reserved. No part of this publication may be reproduced or copied in any form or by any means - graphic,electronic, or mechanical, including photocopying, taping, or information storage and retrieval systems - without the priorwritten permission of the publisher. Contact AMS for permission pertaining to the overall collection. Authors retain theirindividual rights and should be contacted directly for permission to use their material separately. The manuscriptsreproduced herein are unrefereed papers presented at the Seventh Joint AMS-AWMA Conference on Applications of Air PollutionMeteorology. Their appearance in this collection does not constitute formal publication.

AMERICAN METEOROLOGICAL SOCIETY

45 Beacon Street, Boston, Massachusetts USA 0T T,B/UB Hannover"™1 128 751630o

TABLE OF CONTENTS

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FOREWORD iii

AUTHOR INDEX xvi

SESSION 1A: CXIMATE

Chairperson: Sharon LeDuc, NOAA/ARL-USEPA, Res. Triangle Pic, N.C.

1A.1 MEASUREMENT OF METHANE FLUXES IN URBAN PLUMES. J.N.Carras, 1C. J. Thomson and D. J. Williams, CSIRO, North Ryde, Australia

1A.2 THE EFFECTS OF CLIMATE CHANGE ON THE NITROGEN CYCLE AND ACID 5DEPOSITION. J. E. Penner and J. J. Walton, Lawrence Livermore National Lab., Livennore; andB. C. Graboske, Univ. of California, Berkeley, Calif.

1A.3 PERTURBATIONS TO TROPOSPHERIC UV AND OZONE DUE TO STRATOSPHERIC OZONE 8DEPLETION. A. M. Thompson and P. A. Newman, NASA/Goddard Space Flight Or. (GSFC),Greenbelt, Md.

1A.4 ANNUAL CONCENTRATION CYCLE OF PCBS AND ORGANOCHLORINES IN AIR NEAR 11THE GREAT LAKES. R. M. Hoff, Atmos. Envir. Service (AES), Egbert; and D. C. G. Muir and N.B. Grift, Dept. of Fisheries and Oceans, Winnepeg, Canada

SESSION IB: LONG RANGE TRANSPORTChairperson: David Smith, Chas. T. Main Inc., Boston, Mass.

1B.1 A DESCRIPTIVE ATMOSPHERIC TRANSPORT CLIMATOLOGY FOR THE MAUNA LOA 14OBSERVATORY, USING CLUSTERED TRAJECTORIES. J. M. Harris, NOAA/CMDL, Boulder,Colo.; and J. D. Kahl, Univ. of Wisconsin, Milwaukee, Wise.

1B.2 LONG-RANGE TRANSPORT OF SAHARAN DUST INTO THE CENTRAL AMAZON BASIN 20OVER 10-14 DAYS. R. Swap, M. Garatang and S. Greco, Univ. of Virginia, Charlottesville, Va.;and P. Kallberg, Swedish Met. and Hydro. Inst., Norrkoping, Sweden

1B.3 LONG-RANGE FORECAST TRAJECTORIES OF VOLCANIC ASH FROM REDOUBT 24VOLCANO ERUPTIONS. J. L. Heffter and R R. Draxler, NOAA/ARL, Silver Spring, Md.

1B.4 AN ATTEMPT TO IDENTIFY POTENTIAL SOURCE REGION© OF AIRBORNE 29POLLUTANTS OBSERVED AT CANADIAN HIGH ARCTIC USING A 3-LAYER PSCFTECHNIQUE. M. D. Cheng and P. K. Hopke, Clarkson Univ., Potsdam, N.Y.; S. Landsberger,Univ. of Illinois, Champaign-Urbana, IE; and L. A. Barrie, AES, Downsview, Canada

1B.5 A NOVEL APPLICATION OF A "PARTICLE" MODEL TO THE PROBLEM OF 32LONG-RANGE TRANSPORT AND DIFFUSION. W. D. Ohmstede, New Mexico State Univ.,Las Cruces, N.Mex

SESSION N2: NATIONAL ACID PRECIPITATION ASSESSMENT PROGRAM(NAPAP): ATMOSPHERIC ACHIEVEMENTSChairperson: Francis Schiermeier, NOAA/ARL, Res. Triangle Pk., N.C.

N2.1 WHAT DID WE LEARN IN THE 8CS FROM NAPAP; APPLICATIONS OF RESULTS TOTHE199CS. J.R.Mahoney, NAPAP Office, Washington, D.C. (Invited)

N2.2 NAPAP MEASUREMENT ACCOMPLISHMENTS. B. B. Hicks, NOAA/ARL, Silver 36Spring, Md. (Invited)

N2.3 NAPAP SCIENTIFIC ACCOMPLISHMENTS. J. Hales, BatteUe PNW, Richland,Wash. (Invited)

* Paper not available; if received in time, it will appear at back of book.

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N2.4 MOI REGIONAL MODELING OVERVIEW. P. K. Misra, Ontario Ministry of 41the Environment, Rexdale, Canada (Invited)

N2.6 RADM MODEL DEVELOPMENT/DESCRIPTION. J. Chang, ASRC/SUNY, *Albany, N.Y. (Invited)

N2.7 RADM MODEL EVALUATION/APPLICATIONS. R.L. Dennis, USEPA, *Res. Triangle Pk., N.C. (Invited)

N2.8 INVESTIGATION OF RADM PERFORMANCE USING AIRCRAFT MEASUREMENTS. 42J. K. S. Ching, NOAA/ARL-USEPA, Res. Triangle Pk., N.C; J. Chang, ASRC/SUNY, Albany,N.Y.; C. Spicer, Battelle, Columbus, Ohio; and E. Schaller, Fraunhofer Inst., Garmisch-P, Germany

N2.9 UNDERSTANDING THE PERFORMANCE OF A COMPREHENSIVE MODEL. C. Fung, 46R. Bloxam, P. K. Misra and S. Wong, Ontario Ministry of the Environment, Rexdale, Canada

N210 EVALUATION OF RADM PREDICTIONS FOR A MESOSCALE-fi BOX VOLUME OVER 50NORTHEASTERN PENNSYLVANIA. E. Schaller and M. Meyer-Wyk, Fraunhofer Inst.,Garmisch-P, Germany; J. Chang and J. Pleim, ASRC/SUNY, Albany, N.Y.; J. Boatman,NOAA/ARL, Boulder, Colo.; J. K. S. Ching, NOAA/ARL-USEPA, Res. Triangle Pk., N.C; and C.W. Spicer, Battelle, Columbus, Ohio

N211 ESTIMATION OF THE CONTRIBUTION OF CANADIAN VERSUS UNITED STATES 54EMISSIONS TO SULFUR DEPOSITION. F. S. Binkowskt, NOAA/ARL-USEPA; J. N. McHenry,Computer Sciences Corp., Res. Triangle Pk., N.C; and J. S. Chang, ASRC/SUNY, Albany, N.Y.

JOINT SESSION J3: ATMOSPHERIC BOUNDARY LAYER MEASUREMENTS FOR THE 1990'S,PART I: SCIENTIFIC NEEDS FOR BOUNDARY LAYER MEASUREMENTS (Joint with Seventh Symposiumon Meteorological Observations and Instrumentation and Special Session on Laser Atmospheric Studies)

Co-Chairpersons: Walter Bach, U.S. Army Res. Office; and C Bruce Baker, NOAA/ARL-USEPA, Res. Triangle Park, N.C.

J3.1 SCIENTIFIC NEEDS FOR BOUNDARY LAYER MEASUREMENTS MICRO-LOWER J105MESOSCALE (0-50KM). A. Venkatram, ENSR Consulting and Engineering, Camarillo, Calif.

J3.2 BOUNDARY LAYER MEASUREMENT NEEDS FOR MESOSCALE AIR QUALITY MODELS. J106S. C. Liu, E. Hsie, S. A. McKeen and M. Trainer, NOAA/ERL/AL, Boulder, Colo.

J3.3 FOUR-DIMENSIONAL DATA ASSIMILATION OF BOUNDARY LAYER MEASUREMENTS J109FOR THE 199CS. N. L. Seaman, Penn State Univ., University Park, Pa.

J3.4 CHEMICAL MEASUREMENT TECHNIQUES AND SYSTEMS FOR MIXED LAYER AIR QUALITY J115MODELING AND RESEARCH IN THE 1990'S. W. L. Chameides and M. O. Rodgers,Georgia Inst. of Technology, Atlanta, Ga. (Invited)

J3.5 PASSIVE REMOTE SENSING OF BOUNDARY LAYER TEMPERATURE AND WATER J116VAPOR. J. A. Shaw and E. R. Westwater, NOAA/ERL/WPL, Boulder, Colo. (Invited)

J3.6 TURBULENCE AND AIR POLLUTION-RELATED MEASUREMENTS USING ACTIVE J120REMOTE SENSING SYSTEMS. D. W. Thomson, Penn State Univ., University Park, Pa. (Invited)

J3.7 IN-SITU MEASUREMENTS FOR PBL AND AIR QUALITY MODELING IN THE J1211990'S. B. B. Hicks, NOAA/ARL, Silver Spring, Md. (Invited)

J3.8 AIRBORNE TURBULENCE AND H,O-DIAL MEASUREMENTS OF A SUMMERLY J122TROPOSPHERE. T. Hauf and G. Ehret, DLR, Oberpfaffenhofen, Germany

J3.9 HIGH VOLUME DATA STREAMS FOR BOUNDARY LAYER STUDIES. L.Olsen,NASA/GSFC, Greenbelt, Md.

J3.10 THE AUTOMATED SURFACE OBSERVING SYSTEM: A PROGRAM OVERVIEW. S. E. Short and J124J. A. McNitt, NOAA/NWS, Silver Spring, Md.

* Paper not available; if received in time, it win appear at back of book.

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J3.ll THE INTEGRATED SOUNDING SYSTEM-A NEW OBSERVING SYSTEM FOR MESOSCALE J128RESEARCH. W. F. Dabberdt, H. L. Cole, P. Hildebrand, T. Hoist, Y. H. Kuo and C. Martin,NCAR; K. S. Gage, W. Ecklund, R. Strauch and E. R. Westwater, NOAA/ERL, Boulder, Colo.;and W. L. Smith, Univ. of Wisconsin, Madison, Wise.

JOINT POSTER SESSION JP4 (Joint with Seventh Symposium on Meteorological Observations and Instrumentationand Special Session on Laser Atmospheric Studies)

Chairperson: Walter Dabberdt, NCAR, Boulder, Colo.

JP4.1 OZONE MEASUREMENTS IN THE ABL WITH A TETHERED BALLOON SYSTEM. J134H. Escher-Vetter and F. Vogel, Univ. of Munich, Munich; and W. Speuser, Univ. of Bonn, Bonn,Germany

JP4.2 DIGITAL OZONESONDES: EXAMPLES OF RESULTS FROM THE EMEFS EXPERIMENTS J138OF 1988 AND 1990. R. E. Mickle, R. M. Hoff, J. Markes and F. A. Froude, AES, Egbert, Canada

JP4.3 USE OF MOBILE RADIOSONDE SYSTEMS TO OBSERVE THE ENVIRONMENTS OF LAKE J142ONTARIO WINTER STORMS. G. P. Byrd and R. S. Weinbeck, SUNY, Brockport; and A. J.Stamm, R. J. Ballentine and E. E. Chermack, SUNY, Oswego, N.Y.

JP4.4 VARIATIONS OF SPECTRA AND COSPECTRA IN A SLIGHTLY HETEROGENEOUS J146TERRAIN RESULTS FROM HIBE89 EXPERIMENT. M. Weber and M. Dillman, Univ. ofMunich, Munich, Germany

JP4.5 PORTABLE CLUTTER FENCE FOR UHF WIND PROFILING RADAR. C. A. Russell, J152CIRES; and J. R. Jordan, NOAA/ERL/WPL, Boulder, Colo.

JP4.6 HOURLY OBSERVATIONS OF THE JET STREAM: WIND SHEAR, RICHARDSON J157NUMBER AND PILOT REPORTS OF TURBULENCE. W. J. Syrett, Penn State Univ., UniversityPark, Pa.

JP4.7 USE OF 915 MHZ WIND PROFILER DATA TO DESCRIBE THE DRJRNAL J161VARIABILITY OF THE MIXED LAYER. A. B. White, CIRES, Univ. of Colorado; and C. W.Fairall and D. E. Wolfe, NOAA/ERL/WPL, Boulder, Colo.

JP4.8 ASSESSMENT OF THE PROPOSED UPPER-AIR MONITORING NETWORK FOR THE SAN J167JOAQUIN VALLEY AIR QUALITY STUDY USING OBSERVING SYSTEM SIMULATIONEXPERIMENTS. S. G. Douglas and R. C. Kessler, Systems Applications Infl., San Rafael, Calif.

JP4.9 A MODULAR PC-BASED SYSTEM FOR THE ON-LINE ANALYSIS OF SODAR ECHOES. J170A Marzorati, ENEL, Centra Ricerca Termica e Nucleare, Milano; G. Mastrantonio, CNR, IsUtutodi Fisica delfAtmosfera, Frascati; G. Fiocco, Universita' La Sapienza; and S. Cantarano,Multimicro s.a.s., Roma, Italy

JP410 TEXAS A&M UNIVERSITY'S 10 CM DOPPLER RADAR: A NEW TOOL FOR HANDS-ON J172TEACHING, RESEARCH, AND SERVICE. J. G. Guynes, J. Canglose, J. R. Scoggins and E. J.Zipser, Texas A&M Univ., College Station, Tex.

JP4.11 SYSTEMATIC ERRORS OF THE INTEGRATING NEPHELOMETER IN THE MEASUREMENT J176OF LOW VISIBILITY IN FOG. M. Gazzi, V. Vicentini and C. Pesd, Inst. Ftobat, CNR, Bologna,Italy

JP4.12 A SENSITIVE ELECTRONIC MICROBAROGRAPH NETWORK. C. J. Nappo, J179T. L. Crawford, R. E. Eckman and D. L. Auble, NOAA/ARL, Oak Ridge, Tenn.

JP4.13 A YO-YO LOW LEVEL ATMOSPHERIC SOUNDING INSTRUMENT. J.H.Meyer, J182J. R. Rowland, M. C. Grubelich, R. E Miller and J. B. Allison, Johns Hopkins Univ., Laurel, Md.

JP4.14 THE USE OF A LASER CEILOMETER FOR SKY CONDITION DETERMINATION. J186V. L. Nadolski, NOAA/NWS, Silver Spring, Md.; and J. T. Bradledy, NOAA/NWS, Sterling, Va.

* Paper not available; if received in time, it will appear at back of book.

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P4.15 AUTOMATIC OBSERVATIONS OF THE STATE OF THE SOIL FOR METEOROLOGICAL J191APPLICATIONS. J. L. Gaumet, P. Salomon and R. Paillisse, Meteo France-SETIM,Magny-les-Hameaux, France

P4.16 PAPER WITHDRAWN

IP417 A REAL-TIME COLOR DISPLAY OF SODAR DATA FOR ASSESSING POLLUTION J195DISPERSION CONDITIONS. C. W. King, NOAA/ERL/WPL; and D. Ruffieux, CIRES, Univ. ofColorado, Boulder, Colo.

IP4.18 A TURBULENCE-DRIVEN AIR FUMIGATION FACILITY FOR STUDYING ADR J199POLLUTION EFFECTS ON VEGETATION. F. Lipfert, K. Lewin, G. Hendry and J. Nagy,Brookhaven Naf 1 Lab., Upton, N.Y.; and Y. Alexander, IIBR, Ness Ziona, Israel

JP419 BOUNDARY LAYER CHARACTERISTICS IN COMPLEX COASTAL AREAS: LJDAR J203OBSERVATIONS AND COMPARISONS WITH MODELS. J. L. McElroy, U.S. EPA, Las Vegas,Nev.; and T. B. Smith, T. B. Smith and Assoc. Inc., Pasadena, Calif.

JP42O SODAR METEOROLOGY SAMPLING FOR REGULATORY MODELING APPLICATIONS. J207K. R. Peterman, P. M. Fansioli and S. D. Vaello, Radian Corp., Austin, Tex

JP421 FLOW IN THE GRAND CANYON AND OTHER VALLEYS AS REVEALED BY DOPPLER J210UDAR. R. Banta, L. D. OUvier and W. D. Neff, NOAA/ERL/WPL, Boulder, Colo.

JP4.22 MEASUREMENT OF EXTINCTION CROSS SECTION BY HIGH SPECTRAL J214RESOLUTION UDAR. C. J. Grand and E. W. Eloranta, Univ. of Wisconsin, Madison, Wise.

JP423 UDAR APPUCATION FOR ESTIMATING RELATIVE PARTICLULATE FLUX. J217R. Viswanathan and M. McGown, Univ. of Nevada; and J. McElroy, M. Pitchford, C. Edmondsand D. Bundy, US. EPA, Las Vegas, Nev.

JP424 UDAR-DERIVEDBACICSCATTER AND EXTINCTION OF MARITIME AEROSOLS. J219S. A. Young, CSIRO, Mordialloc, Australia; D. R. Cutten, Univ. of Alabama, Huntsville, Ala.; andM. J. Lynch and J. E. Davies, Curtin Univ. of Tech., Perth, Australia

SBSSION 5: ACID DEPOSITIONChairperson: Vince Mirabella, Southern California Edison, Rosemead, Calif.

5.1 THE EULERIAN MODEL EVALUATION FIELD STUDY (EMEFS). D.A.Hansen, 58EPRI, Palo Alto, Calif.; K. J. Puckett, AES, Toronto, Canada; J. J. Jansen, Southern Co. Svcs. Inc.,Birmingham, Ala.; M. Lusis, Ontario Ministry of the Environment, Toronto, Canada; and J. S.Vickery, NOAA/ARL-USEPA, Res. Triangle Pk., N.C.

5.2 EVALUATION OF RADM USING SURFACE DATA FROM THE EULERIAN MODEL 63EVALUATION FIELD STUDY. W. R. Barchet, Battelle PNL, Richland Wash.; R. L. Dennis,USEPA, Res. Triangle Pk; and S. K. Seilkop, Analytical Sciences Inc., Durham, N.C.

53 ANALYSIS OF METEOROLOGICAL EFFECTS ON ATMOSPHERIC PHOTO OXIDANT 67FORMATION AND ACIDIFICATION USING A MESOSCALE CHEMICAL TRANSPORTMODEL FOR EUROPE. A. EbeL H. Haas, H. J. Jacobs, A. Kotz, M. Laube and M.Memmesheimer, Inst fur Geophysik, Univ. of Cologne, Cologne; and H. Geiss, Research Ctr.KFA, Julich, Germany

5.4 SENSITIVITY OF RADM TO POINT SOURCE EMISSIONS PROCESSING. 70D. W. Byun, Computer Sciences Corp.; and F. S. Binkowski, NOAA/ARL-USEPA, Res. TrianglePk., N.C.

5.5 COMPARISON OF ADOM-MODULE DRY DEPOSITION VELOCnTES (O3) WITH 74MEASUREMENTS OVER A DECIDUOUS FOREST. J. Padro, G. den Hartog and H. H.Neumann, AES, Downsview, Canada

* Paper not available; if received fat time, it will appear at back of book.

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5.6 MEASUREMENTS OF AQUEOUS AND GASEOUS HYDROGEN PEROXIDE IN CENTRAL 77ONTARIO. A M. Macdonald, K. G. Anlauf, H. A. Wiebe, W. R. Leaitch, C. M. Banic, M. F. Watt,K. J. Puckett and B. Bregman, AES, Downsview, Canada

5.7 THE EFFECT OF SUB-GRID-SCALE RAINFALL ANALYSIS ON SULFATE WET 81DEPOSITION ESTIMATES IN THE REGIONAL LAGRANGIAN MODEL OF AIR POLLUTION(RELMAP). O. R. Bullock, Jr., NOAA/ARL-USEPA, Res. Triangle Pk., N.C.

5.8 VARIATIONS IN ATMOSPHERIC ACIDITY WITH METEOROLOGICALCONDITIONS. G. J. Keeler, J. D. Spengler and P. J. Samson, Univ. of Michigan, Ann Arbor,Mich.

5.9 A METEOROLOGY-BASED APPROACH TO DETECTING SOURCE-RECEPTOR 85RELATIONSHIPS IN WET SULFATE DEPOSITION DATA. J. R Brook, P. J. Samson andS. Sillman, Univ. of Michigan, Ann Arbor, Mich.

5.10 PERFORMANCES OF LAGRANGIAN AND EULERIAN TRANSPORT AND DIFFUSION 89MODELS ACROSS CONTINENTAL SCALES. T. L. Clark, NOAA/ARL-USEPA, Res. TrianglePk.; and R. D. Cohn, Analytical Sciences Inc., Durham, N.C.

SESSION 6: ADVANCED STACK AND AIR QUALITY MODELINGCo-chairpersons: Leonard Levin, EPRI, Palo Alto, Calif.;and Arlene Borowsky, ENSR Consulting & Engineering, Somerset, N.J.

6.1 A COMPARISON OF SCREEN MODEL DISPERSION ESTIMATES WITH ESTIMATES 93FROM A REFINED DISPERSION MODEL. R. W. Brode, Pacific Envir. Services Inc., Durham,N.C.

6.2 AN ADVANCED SCREENING MODEL FOR COMPLEX TERRAIN APPLICATIONS. 97D. J. Burns, Computer Sciences Corp.; S. G. Perry, NOAA/ARL, Res. Triangle Pk., N.C; and A. J.Cimorelli, USEPA, Philadelphia, Pa.

6.3 PLUME MODEL PREDICTABILITY AS DETERMINED BY LARGE-EDDY SIMULATIONS. 101R I. Sykes, W. S. Lewellen, S. F. Parker and D. S. Henn, California Res. and Technology, Inc.,Princeton, N.J.

6.4 DISPERSION MODELING OF HIGHLY BUOYANT PLUMES IN THE CONVECTIVE 105BOUNDARY LAYER. J. C Weil, NCAR, Boulder, Colo; and L. A. Corio and R. P. Brower, VersarInc., Columbia, Md.

6.5 FEATURES AND APPLICATIONS OF THE HYBRID PLUME DISPERSION MODEL 109(HPDM). R J. Paine, ENSR Consulting and Engineering, Acton, Mass.

6.6 SIGPRO-A METEOROLOGICAL PREPROCESSOR FOR DISPERSION MODEL 113APPLICATIONS TO STACK PLUMES IN URBAN AREAS. S. R. Hanna and J. C. Chang,SIGMA Research Corp., Westford, Mass.

6.7 STOCHASTIC MODELING OF IMPACTS RESULTING FROM INTERMnTENT RELEASES 117OF AIR TOXICS. T. E. Stoeckenius and J. R Pehling, Systems Applications, Inc., San Raphael,Calif.; and D. E. Guinnup, USEPA, Res. Triangle Pk., N.C.

6.8 A COMPARISON OF TURBULENCE CLASSIFICATION SCHEMES IN A LAKESHORE 121ENVIRONMENT. L. L. Schulman and C. M. Haga, SIGMA Research Corp., Westford, Mass.; andR. Caiazza, Niagara Mohawk Power Corp., Syracuse, N.Y.

6.9 DEVELOPMENT OF THE CALPUFF NON-STEADY-STATE MODELING SYSTEM. 125J. S. Scire, D. G. Strimaitis and R. J. Yamartino, SIGMA Research Corp., Westford, Mass.

POSTER SESSION P7: CLIMATE, LONG RANGE TRANSPORT, ACID DEPOSITION, OXIDANTSChairperson: Joseph Laznow, R-C Environmental Services & Technologies, Branchburg, N.J.

P7.1 METHODOLOGY FOR MODELING EXTREME EFFECTS OF AEROSOL PARTICLES 131TRANSPORTED ON A REGIONAL SCALE. E. H. Holt, Atmos. Science Lab., White SandsMissile Range, N.Mex.; R. A Pielke and R. L. Walko, Colorado State Univ., Ft. Collins, Colo.; andS. A. Luces and W. D. Ohmstede, New Mexico State Univ., Las Cruces, N.Mex.

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P7J2 SELECTING THE BEST SYNOPTIC CLASSIFICATION FOR AIR POLLUTION 135STUDIES. B. Yarnal, A. C. Comrie and K. B. Yelsey, Penn State Univ., University Park, Pa.

P73 DIAGNOSTIC EVALUATION OF REGIONAL ACID DEPOSITION MODEL (RADM) 139PERFORMANCE DURING A PERIOD OF FRONTAL PASSAGE USING AIRCRAFTMEASUREMENTS. C. W. Spicer and T. J. Kelly, Battelle, Columbus, Ohio; J. Chang, SUNYA,Albany, N.Y.; J. K. S. Ching and R. L. Dennis, NOAA/ARL-USEPA, Res. Triangle Pk., N.C; E.Schaller, Fraunhofer Inst, Garmisch-P, Germany; K. Busness and R. Lee, Battelle PNL, Richland,Wash.; and C. Lindsey and J. Anderson, Sonoma Technology Inc., Santa Rosa, Calif.

P74 PARTITIONING OF THE SULFATE BUDGET INTO GAS AND AQUEOUS 143PHASE COMPONENTS IN THE REGIONAL ACID DEPOSITION MODEL (RADM). J. N.McHenry, Computer Sciences Corp.; and R. L. Dennis, NOAA/ARL-USEPA, Res. Triangle Pk.,N.C.

P7.5 AIRBORNE INTERCOMPARISON OF TRACE CHEMICAL SPECIES DURING THE 1988 148ACID-MODES FIELD EXPERIMENT. J. M. Hubbe, K. M. Busness and R. N. Lee, Battelle, PNL,Richland, Wash.; J. F. Boatman and R. L. Gunter, NOAA, Boulder, Colo.; T. J. Kelly, Battelle,Columbus, Ohio.; and J. Werhahn, H. Giehl and F. Slemr, Fraunhofer Inst, Garmtoeh-P, Germany

P7.6 A SUMMARY OF THE OPERATIONAL EVALUATION NETWORK. N.E.Bowne and 152D. J. McNaughton, ENSR Consulting & Engineering, Glastonbury, Conn.; and M. A. Allan, EPRI,Palo Alto, Calif.

P7.7 ANALYSIS OF SOURCE-RECEPTOR RELATIONSHIPS FOR SULFUR COMPOUNDS USING 156SPATIAL AND TREND TECHNIQUES. D. S. Renne, W. R. Barchet and A. R. Olsen, PNL,Richland, Wash.; and J. D. Shannon and D. L. Sisterson, Argonne National Lab., Argonne, 111.

P7.8 ADVANCED GRAPHICS AS TOOL FOR OXIDANT MODEL APPUCATIONS. J. Reaganand D. H. Coventry, NOAA/ARL; and T. Birth, Computer Sciences Corp., Res. Triangle Pk., N.C.

P7.9 ESTIMATING UGHTNING-GENERATED NOx EMISSIONS FOR REGIONAL AIR 160POLLUTION MODELS. T. E. Pierce, D. H. Coventry and J. H. Novak, NOAA/ARL; and A. R.Meter, Computer Sciences Corp., Res. Triangle Pk., N. C.

P7.10 MESOSCALE NUMERICAL MODEL EVALUATIONS OF THE METEOROLOGICAL FACTORS 164ASSOCIATED WITH ELEVATED OZONE LEVELS IN THE SOUTHERN LAKE MICHIGANREGION. W. A. Lyons, R. A. Pielke and J. L. Eastman, Colorado State Univ., Ft. Collins, Colo.; D.A. Moon and C. S. Keen, R*Scan; and N. R. Lincoln, SSESCO Inc., Minneapolis, Minn.

P7.12 SPATIAL, TEMPORAL, AND METEOROLOGICAL CHARACTERISTICS OF OZONE 168VIOLATIONS IN SANTA BARBARA COUNTY. T. Murphy and J. I. John, Santa BarbaraCounty Air Poll. Control Dist, Goleta, Calif.

P7.13 THE MEDITERRANEAN AS A POSSIBLE OZONE RESERVOIR. E. H. Steinberger 172and G. Reichmann, Hebrew Univ., Jerusalem; and Y. Gabbai, Tel Aviv Univ., Ramat Aviv, Israel

P7.14 USE OF VARIABLE-GRID REGIONAL OXIDANT MODEL TO ANALYZE OZONE ISSUES 175AND PLAN A FIELD STUDY FOR THE SAN JOAQUIN VALLEY. R. E. Morris, R. C. Kesslerand S. G. Douglas, Systems Applications Inf 1, San Rafael, Calif.

P7.15 FORMULATION OF THE CALGRID PHOTOCHEMICAL OXIDANT GRID MODEL. 179R. J. Yamartino, J. S. Sdre and S. R. Hanna, SIGMA Research Corp., Westford, Mass.

P7.16 STUDY OF IN SITU OXIDATION OF SO2 IN CLOUD DROPLETS USING 185ELEMENTAL TRACERS. E. J. Greene, M. M. Hussain, G. Mehmood, SUNYA; and V. A.Dutkiewicz, H. A. Khwaja, P. P. Parekh and L. Husain, SUNYA and Wadsworth Ctr. for Labs,and Res., Albany, N.Y.

•Paper not available; if received in time, it wffl appear at back of book.

JOINT SESSION J8: AIR QUALITY MEASUREMENTS(Joint with Special Session on Laser Atmospheric Studies)

Co-chairpersons: Alan Goldman, Alternative Resources Inc., Concord, Mass.; and Edwin W. Eloranta,Univ. of Wisconsin, Madison, Wise.

J8.1 VERTICAL PROFILES OF OZONE USING FREE FLYING AND TETHEREDOZONESONDES AND DIAL DURING THE 1988 SUMMER AND 1990 SPRING EMEFSINTENSIVES. R. M. Hoff, R. E. Mickle and W. R. Leaitch, AES, Egbert, Canada

J8.2 ANALYSIS OF HIGH FREQUENCY SURFACE-INDUCED CONCENTRATIONFLUCTUATIONS. Y. Alexander, F. Lipfert, K. Lewin, G. Hendrey and J. Nagy, BrookhavenNational Lab., Upton, N.Y.

J8.3 ASOSCEILOMETER MEASUREMENTS OF AEROSOLS AND MIXED LAYER HEIGHT IN J228THE LOWER TROPOSPHERE. S. T. Shipley and I. A. Graffman, STX Inc., Lanham, Md.

J8.4 THE USE OF 915 MHZ WIND PROFILERS IN COMPLEX TERRAIN AND REGIONAL J230AIR QUALITY STUDIES. W. Neff, J. Jordan, J. Gaynor and D. Wolfe, NOAA/ERL/WPL; andW. Ecklund, D. Carter and K. Gage, NOAA/ERL/AL, Boulder, Colo.

J8.5 A DOPPLER RADAR FOR THE MEASUREMENT OF MIXING LAYER HEIGHT. J234S. T. Connolly and W. R. Dagle, Applied Technologies, Inc., Boulder, Colo.; and C. A. Biltoft, USArmy Dugway Proving Ground, Dugway, Utah

J8.6 USE OF THE FOUR-DIMENSIONAL DATA ASSIMILATION METHOD IN MESOSCALE J238METEOROLOGICAL MODELS. S. Tanrikulu, Calif. Air Resources Bd., Sacramento; and S.-T.Soong, Univ. of California, Davis, Calif.

J8.7 OZONE AND AEROSOL DISTRIBUTIONS MEASURED BY AIRBORNE LIDAR DURING J242THE 1988 ARCTIC BOUNDARY LAYER EXPERIMENT. E. V. Browell, NASA-LRC; and C. F.Butler and S. A. Kooi, ST Systems, Hampton, Va.

J8.8 THREE-DIMENSIONAL UDAR MAPPING OF AEROSOL POLLUTION PLUMES IN J244CONVECTIVE BOUNDARY LAYERS. E. W. Eloranta, Univ. of Wisconsin, Madison, Wise

J8.9 MOMENTUM AND HEAT FLUX ESTIMATION IN THE PLANETARY BOUNDARY LAYER J245(PBL) WITH A 10.6 MICROMETER DOPPLER UDAR. T. Gal-Chen and M Xu, Univ. ofOklahoma, Norman, Okla.; and W. L. Eberhard, NOAA/WPL, Boulder, Colo.

J8.10 DOPPLER LIDAR MEASUREMENTS OF BOUNDARY LAYER VERTICAL MOTION AND J249HORIZONTAL STRUCTURE. R. M. Hardesty, W. L. Eberhard and R. M. Banta,NOAA/ERL/WPL, Boulder, Colo.

J8.ll AIRBORNE UDAR MEASUREMENTS OF ATMOSPHERIC TRANSPORT AND DIFFUSION J253USING TRACER TECHNIQUES. E. E. Uthe, SRI International, Menlo Park, Calif.

SESSION 9A: COMPLEX TERRAINChairperson: John Leone, Lawrence Livermore Lab., Livermore, Calif.

9A.1 EVALUATION OF THE EPA COMPLEX TERRAIN DISPERSION MODEL (CTDMPLUS) 189WITH THE LOVETT POWER PLANT DATA BASE. S. G. Perry, NOAA/ARL; and J. O. Paumierand D. J. Burns, Computer Sciences Corp., Res. Triangle Pk., N.C.

9A.2 NUMERICAL MODEL STUDIES OF MESOSCALE FLOW IN COMPLEX TERRAIN. 193E. G. Astling, US Army Dugway Proving Grounds, Dugway, Utah

9A.3 RELATION BETWEEN CROSS-CANYON CIRCULATIONS AND VERTICAL MIXING INTO 384THE GRAND CANYON. J. E. Gaynor and R. M. Banta, NOAA/ERL/WPL, Boulder, Colo.

9A.4 COMPLEX INTERACTIONS OF REGIONAL AND MESOSCALE CIRCULATIONS ON THE 197COLORADO PLATEAU. R. A Stacker and R. A. Pielke, Colorado State Univ., Ft. Collins, Colo.

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9A.5 THE CONTRIBUTION OF METEOROLOGY TO VISIBILITY IN A VALLEY IN THE LEE 202OF THE ROCKY MOUNTAINS. G. M. Mathews, Jr., Colorado School of Mines, Golden; and J. E.Gaynor, NOAA/ERL/WPL, Boulder, Colo.

SESSION 9B: COMPLEX FLOWSChairperson: Amiram Roffman, AWD Technologies, Pittsburgh, Pa.

9B1 REAL-TIME FORECASTING OF THE IMPACTS OF ACCIDENTAL RELEASES OF 205RADIONUCUDES INTO COMPLEX COASTAL ZONE MESOSCALE REGIMES USING THEADVANCED REGIONAL ATMOSPHERIC MODELING SYSTEM (ARAMS). W. A. Lyons, D. A.Moon, J. L. Eastman, M. G. Venne and C. S. Keen, R*SCAN Corp.; N. R. Lincoln, SSESCO,Minneapolis, Minn.; and R. A. Pielke, W. R. Cotton, C. J. Tremback and R. L. Walko, ASTeR Inc.,Ft. Collins, Colo.

9B.2 MESOSCALE NUMERICAL MODELING OF THE EASTERN LAKE ONTARIO LAKE 209BREEZE. L. L. Schulman, J. S. Scire and D. G. Strimaitis, Sigma Research Corp., Westford, Mass.;and R. Caiazza, Niagara Mohawk Power Corp., Syracuse, N.Y.

9B.3 SIMPLE METHODS FOR PREDICTING ENSEMBLE-AVERAGE AND EXTREME 213GROUND-LEVEL CONCENTRATIONS AROUND ELEVATED SOURCES IN A VARIETY OFCONVECTIVE CONDITIONS. P. R. Best and K. E. Lunney, Best Scientific and QueenslandUniv. of Technology, Brisbane, Australia

9B.4 DISPERSION OF ODOROUS EMISSIONS FROM CHIMNEYS IN THE VICINITY OF •BUILDINGS. M. Dean, State Pollution Control Commission, Lidcombe, Australia

9B.5 A SENSrnVrTY STUDY OF THE MODELING RESULTS FROM THREE DENSE GAS 217DISPERSION MODELS IN THE SIMULATION OF A RELEASE OF LIQUEFIED METHANE:SLAB, HEGADAS, AND DEGADIS. D. E. Guinnup and Q. T. Nguyen, USEPA, Res. Tri. Pk.,N.C.

SESSION 10: CLOUDS AND FOGChairperson: John Wilson, Malcolm Pinue, Inc., White Plains, N.Y.

10.1 OZONE PRODUCTION POTENTIAL DURING AND FOLLOWING DEEP CONVECTION. 221K. E. Pickering, AppL Res. Corp, Landover; A. M. Thompson, J. R. Scala, W.-K. Tao andJ. Simpson, NASA/GSFC, Greenbelt; and R. R. Dickerson, Univ. of Maryland, CoUege Park, Md.

10.2 OBSERVATIONS OF TRANSPORT OF TRACE GASES BY VIGOROUS CONVECTIVE 224CLOUDS. A J. Alkezweeny and J. Stith, Univ. of North Dakota, Grand Forks, N. Dak.; andJ. K. S. Ching, NOAA/ARL-USEPA, Res. Triangle Pk., N.C.

103 THE EFFECT OF TROPICAL SQUALL-TYPE CONVECTION ON THE VERTICAL 228TRANSPORT AND REDISTRIBUTION OF TRACE GASES. J. R. Scala, W.-K. Tao, K. E.Pickering, A. M. Thompson and J. Simpson, NASA/GSFC, Greenbelt, Md.; and M. Garstang,Univ. of Virginia, Charlottesville, Va.

10.4 CHEMICAL AND MICROPHYSICAL CASE STUDIES OF TOWERING CUMUU IN 232ONTARIO, 1988. W. R. Leaitch, G. A. Isaac, J. W. Strapp, K. G. Anlauf and H. A. Wiebe, AES,Downsview; and J. I. MacPherson, National Res. Council, Ottawa, Canada

10.5 THE PHYSICAL AND CHEMICAL CHARACTERISTICS OF CLOUDS SAMPLED DURING 238THE 1988 ACID-MODES EXPERIMENT. J. F. Boatman, C. Van Valin and R. L. Gunter,NOAA/ERL/ARL; and J. D. Ray, CIRES, Univ. of Colorado, Boulder, Colo.

10.6 PAPER WITHDRAWN

10.7 CONTINUOUS HIGH ELEVATION SURFACE CHEMICAL MEASUREMENTS IN QUEBEC 242DURING THE 1988 AND 1990 EMEFSINTENSIVES. C M. Banic, R. S. Schemenauer and K. G.Anlauf, AES, Downsview, Canada

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PageSESSION 11: OXIDANTSCo-Chairpersons: Dan MacNaughton, ENSR Consulting & Engineering;and S. T. Rao, N. Y. State Dept. of Environmental Conservation, Albany, N.Y.

11.1 A SUMMARY OF ROMNET RESULTS AND OUTPUTS. E. L. Meyer, 246N. C. Possiel, D. C. Doll, K. A. Baugues and K. W. Baldridge, NOAA/ARL-USEPA, Res. TrianglePk., N.C.

11.2 SBNSnTVTTY ANALYSIS OF A NESTED OZONE AIR QUALITY MODEL. G.Slstla 250and S. T. Rao, New York State Dept. of Environmental Conservation, Albany N.Y.; and J.Godowitch, NOAA/ARL-USEPA, Res. Triangle Pk., N.C.

11.3 INFLUENCE OF DAY SPECIFIC METEOROLOGY ON SUB-GRID SCALE FEATURES OF •VOC AND NOX ANTHROPOGENIC EMISSIONS WITHIN THE CONTEXT OF REGIONALEULERIAN MODELS. N. V. Gillani, Brookhaven National Lab., Upton, N.Y.

11.4 EVALUATING PROCEDURES FOR USING NUMERICAL METEOROLOGICAL MODELS AS 256INPUT TO PHOTOCHEMICAL MODELS. T. W. Tesche, Alpine Geophysics, Placerville, Calif.

11.5 AN OVERVIEW OF THE LAKE MICHIGAN OZONE STUDY. M. Koerber, Lake 260Michigan Air Directors Consortium, Des Plaines; and R. Kaleel, L. Pocalujka and L. Brass,USEPA, Chicago, 111.

11.6 MODELING ISSUES FACING REGULATORY APPUCATION OF GRIDDED 264PHOTOCHEMICAL MODELS. R. D. Scheffe, USEPA, Boston, Mass.

11.7 OXIDANT FORMATION AND DISTRIBUTION ON REGIONAL SCALES. •M. O. Rodgers, Georgia Inst. of Technology, Atlanta, Ga.; J. F. Meagher, TV A; R. T. McNider,Univ. of Alabama, Huntsville, Ala.; and V. P. Aneja, N. Carolina State Univ., Raleigh, N.C.

11.8 USE OF A MESOSCALE METEOROLOGICAL MODEL TO GENERATE METEOROLOGICAL 268INPUTS FOR PHOTOCHEMICAL SIMULATION OF A HIGH-OZONE EPISODE IN THE SANJOAQUIN VALLEY. R. C. Kessler, S. G. Douglas and R E. Morris, Systems Applications Inf L,San Raphael, Calif.

11.9 THE ROLE OF,RECIRCULATING AIR MASSES IN PRODUCING PERIODS WITH 272ELEVATED O 3 CONCENTRATIONS. T. F. Lavery and E. S. Edgerton, ES&E, Inc., Gainesville,Fla.

11.10 SUMMER BLOCKING HIGHS AND REGIONAL OZONE EPISODES. S.-H.Chu and 274D. C. DolL NOAA/ARL-USEPA, Res. Triangle Pk., N.C.

11.11 ANALYSIS OF NEW ENGLAND OZONE LEVELS: 1981-1990. R. P. Burkhart and 278N. J. Beloin, USEPA, Lexington, Mass.

SESSION 12: MIXING DEPTHS AND DISPERSIONChairperson: Jeff WeiL CIRES, Boulder, Colo.

12.1 SENSnTVTrY OF THE URBAN AIRSHED MODEL TO VARIATIONS IN MIXING DEPTH *AND WIND FIELD SPECIFICATION DURING A SOUTHERN CALIFORNIA AIR QUALITYSTUDY OZONE EPISODE. K. K. Wagner and N. J. Wheeler, Calif. Air Resources Bd.,Sacramento, Calif.

12.2 COMPARISON OF MODIFIED CARSON AND EPA MIXING HEIGHT ESTIMATES USING 282DATA FROM FIVE FIELD EXPERIMENTS. J. O. Paumier, Computer Sciences Corp.; and J. S.Irwin, NOAA/ARL-USEPA, Res. Triangle Pk., N.C.

123 MEASUREMENTS OF THE ELIMINATION OF THE SURFACE-BASED INVERSION TO 286THE HEIGHT OF 60 METERS ABOVE GROUND. D. B. Turner, Trinity Consultants Inc., Dallas,Tex; and W. F. Rostek, Trinity Consultants Inc., Overland Park, Kans.

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12.4 BOUNDARY LAYER ATMOSPHERIC CONDITIONS DURING AIR POLLUTION EVENTS IN 290BOULDER, COLORADO. R. B. Fritz and J. E. Gaynor, NOAA/ERL/WPL, Boulder, Colo.

12.5 AN INVERSION CLIMATOLOGY FOR THE LOS ANGELES BASIN. G. H. Taylor, 294Oregon State Univ., Corvallis, Oreg.; and S. L. Marsh, Jr., S. Calif. Edison, Rosemead, Calif.

12.6 OBSERVATIONAL ANALYSIS OF MIXED LAYER DEPTH EVOLUTION AND 388VARIABILITY. A. M. Jochum, N. Entstrasser, P. Mori, D. Paffrath and S. Schulz, Inst. fur Physikder Atmos., Oberpfaffenhofen, Germany

12 7 THE USE OF AN ATMOSPHERIC BOUNDARY LAYER MODEL TO INVESTIGATE MIXING 298DEPTHS DURING A SOUTHERN CALIFORNIA AIR QUALITY STUDY OZONE EPISODE. N.J. M. Wheeler, Calif. Air Resources Bd., Sacramento, Calif.

12.8 IMPACTS OF LAND SURFACE CHARACTERISTICS ON ATMOSPHERIC DISPERSION. 302R. A. Pielke, G. Dalu, M. Uliasz, T. J. Lee and R. A Stacker, Colorado State Univ., Ft. Collins,Colo.

12 9 DIFFERENTIAL SURFACE ENERGY BUDGET IN DOWNTOWN DENVER, COLORADO. 308D. Ruffleux, CIRES/Univ. of Colorado, NOAA/ERL/WPL; and D. E. Wolfe, NOAA/ERL/WPL,Boulder, Colo.

SESSION 13: MODEUNG URBAN AIR QUALITYChairperson: Lee Davis, Gabon Technical Services, East Syracuse, N.Y.

13.1 PAPER WITHDRAWN

13.2 THREE DIMENSIONAL TURBULENT AIR DISPERSION MODELING OF HENNEPIN »COUNTY WASTE INCINERATOR EMISSIONS OVER MINNEAPOLIS. T. Scheiwiller andG. Raggio, SIMULTEC, Ltd., Concord, Mass.; V. V. Nguyen, EWA Inc., Minneapolis, Minn.; andS. Drake, CHAM Ltd., London, U.K.

133 EVALUATION OF HPDM-URBAN USING THE INDIANAPOLIS DATABASE. 312J. C. Chang and S. R. Hanna, SIGMA Research Corp., Westford, Mass.

13.4 SIMULATION OF URBAN EFFECTS ON PBL STRUCTURE. R. Bornstein and 316J. Cordova, San Jose State Univ., San Jose, Calif.

13.5 PRELIMINARY RESULTS FROM THE SACRAMENTO URBAN SUMMER HEAT ISLAND 318STUDY (SUSHIS). I. Imamura, I. Nishizawa, M Kobayashi, Tsukuba Univ., Ibaraki, Japan; andR. Bornstein, San Jose State Univ., San Jose, Calif.

13.6 APPLICATION OF FOUR-DIMENSIONAL DATA ASSIMILATION FOR GENERATING 320THREE-DAY EPISODIC METEOROLOGICAL FIELDS OVER THE LOS ANGELES BASINSUITABLE FOR AIR QUALITY MODELING. N. L. Seaman and C. D. Cole, Penn State Univ.,University Park, Pa.

13.7 THE MICROMETEOROLOGY OF DENVER CARBON-MONOXIDE EPISODES. W. D. Neff 324and C. W. King, NOAA/ERL/WPL, Boulder, Colo.

13.8 THE RELATIONSHIP BETWEEN SYNOPTIC AND MICROSCALE METEOROLOGICAL 330PARAMETERS DURING POOR AIR QUALITY EVENTS. C. W. King, NOAA/ERL/WPL,Boulder, Colo.

13.9 EFFECT OF URBAN AIR ON CLOUD DROP SIZE DISTRIBUTION. 334A. J. Alkezweeny, D. A. Burrows, C. A. Grainger and L. F. Osborne, Jr., Univ. of North Dakota,Grand Forks, N. Dak.; and R. L. Benner and D. H. Stedman, Univ. of Denver, Denver, Colo.

POSTER SESSION P14- URBAN, COMPLEX TERRAIN,FLOWS, ADVANCED MODELSChairperson: Julian Blomley, UNOCAL Corp., Los Angeles, Calif.

F141 CHARACTERISTICS OF UPDRAFTS AND DOWNDRAFTS AND SIMULATION OFDISPERSION. N. U. Ahmed, Universities Space Research Assoc., Greenbelt, Md.

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P14.3 APPUCATION OF A HYBRID WIND FIELD MODEL TO LAKE BREEZE 338CIRCULATIONS IN THE EASTERN LAKE ONTARIO REGION. J. S. Sdre and L. L. Schulman,Sigma Research Corp., Westford, Mass.; and R. Caiazza, Niagara Mohawk Power Corp.,Syracuse, N.Y.

P14.4 A SURVEY OF METHODS USED TO DESCRIBE THE DISPERSION OF POLLUTANTS IN 342THE BUILDING CAVITY AND WAKE REGION. K. Kowalewsky and T. Palma, GabonTechnical Svcs., East Syracuse, N.Y.

P14.5 VELOCITY OSCILLATIONS AND TURBULENCE IN A MOUNTAINOUS BASIN AT •ROANOKE, VIRGINIA. R. E. Eskridge, NOAA/EDS, Asheville, N.C; and K. J. Allwine andB. K. Lamb, Washington State Univ., Pullman, Wash.

P14.6 MASS RETENTION CHARACTERISTICS OF "OPEN BOX" FOR 348HEAVIER-THAN-AIR GAS RELEASES. R. L. Petersen and M. A. Ratcliff, Cermak PeterkaPetersen, Inc., Ft Collins, Colo.

P14.7 AIR POLLUTION DISPERSION IN A COASTAL INDUSTRIAUZED AREA. 352T. Tirabassi and D. Manco, Inst FISBAT of C. N.R., Bologna, Italy

P148 ROUTINE USE OF A COMPLEX TERRAIN DISPERSION MODEL. P. R. Isaac, 356M. G. Hadfield, G. W. Fbher and E. W. D. Lewthwaite, New Zealand Meteorological Service,Wellington, New Zealand

P14.9 EFFECT OF UPWIND TERRAIN ON REENTRAINMENT OF ROOFTOP FUME HOOD 360EXHAUST INTO OUTSIDE AIR INTAKES. M. A. Ratcliff and R. L. Petersen, Cermak PeterkaPetersen, Inc., Ft. Collins, Colo.

P14.10 MODELING PLUME BEHAVIOR IN COMPLEX TERRAIN USING A PERSONAL COMPUTER 363WITH READILY AVAILABLE METEOROLOGICAL INPUTS. F. L. Ludwig, R. M. Endlich andJ. M. Livingston, SRI International, Menlo Park, Calif.

P1411 AIR QUALITY ASSESSMENT IN INTERMEDIATE TERRAIN. H. A Chary and 367J. A Pollack, Chas. T. Main, Inc., Boston, Mass.

P1412 DATA VALIDITY BY EPA QUALITY ASSURANCE METHODS. T. J. Lockhart, 371Meteorological Standards Inst., Fox Island, Wash.

P1413 FURTHER DEVELOPMENT OF THE ADAPTIVE VOLUME PLUME MODEL. Z. Boybeyi 373and R. Bornstein, San Jose State Univ., San Jose; and F. Ludwig, SRI International, Menlo Park,Calif.

P1414 DEVELOPMENT OF THE INTEGRATED GAUSSIAN MODEL (IGM)- OBSERVATIONS 375AND SUGGESTIONS FOR IMPROVEMENT. M. E. Garrison and G. G. McComb, Jr., UnitedEngineers and Constructors Inc., Philadelphia, Pa.

P1415 EVOLUTION OF NOCTURNAL URBAN BOUNDARY LAYER OVER SAPPORO, JAPAN. 380I. Uno and S. Wakamatsu, Nat/1 Inst. for Environ. Studies, Tsukuba, Japan

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