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Douw Steyn Rohit Mathur Editors Air Pollution Modeling and its Application XXIII ^ Springer

Air Modeling andits Application - gbv.de · Contents xxxi SethOlsen, RohitMathur, WilliamVizuete, andGregg Fleming 33 RelevanceofPhotolysisFrequencies CalculationAspects totheOzoneConcentrationSimulation

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Douw Steyn • Rohit Mathur

Editors

Air Pollution Modelingand its Application XXIII

^ Springer

Use of Air Quality Modeling Results in Health Effects Research

Armistead Russell, Heather Holmes, Mariel Friberg,Cesunica Ivey, Yongtao Hu, Siv Balachandran,

James Mulholland, Paige Tolbert, Jeremy Sarnat,

Stefanie Sarnat, Matt Strickland, Howard Chang,and Yang Liu

Air Quality Effects on Human Health

J. Brandt, J.D. Silver, J.H. Christensen, M.S. Andersen,

J.H. B0nl0kke, T. Sigsgaard, C. Geels, K.M. Hansen,

E. Kaas, and L.M. Frohn

Development of Model-Based Air Pollution ExposureMetrics for Use in Epidemiologic Studies

V. Isakov, M. Snyder, D. Heist, S. Perry, J. Burke,

S. Bereznicki, Saravanan Arunachalam, S. Batterman,

andCAAA

Improved Spatiotemporal Source-Based Air Pollutant

Mixture Characterization for Health Studies

Heather A. Holmes, Xinxin Zhai, Jeremiah Redman,

Kyle Digby, Cesunica Ivey, Sivaraman Balachandran,

Sheila A. Sororian, Mariel Friberg, Wenxian Zhang,Marissa L. Maier, Yongtao Hu, Armistead G. Russell,

James A. Mulholland, and Howard H. Chang

Advances in Linked Air Quality, Farm Managementand Biogeochemistry Models to Address Bidirectional

Ammonia Flux in CMAQEllen J. Cooter, Jesse O. Bash, Verel Benson, and Limei Ran

xxviii Contents

6 A Temporal NOx Emissions Trading System: Case Studyof US Power Plants 37

S. Morteza Mesbah, Amir Hakami, and Stephan Schott

7 Source Attribution of Attainment and Exposure-BasedOzone Metrics in North America 43

Amanda Pappin and Amir Hakami

8 CASTNET Methodology for Modeling Dry and Total Deposition... 49

Christopher M. Rogers, Thomas F. Lavery,Marcus O. Stewart, William R. Barnard,

and H. Kemp Howell

9 ACCEPTED: An Assessment of Changing Conditions,Environmental Policies, Time-Activities, Exposure and Disease 55

Andy Delcloo, Camilla Andersson, Bertil Forsberg,Tim Nawrot, and Myrto Valari

10 Studying Aerosol-Cloud-Climate Interactions over East

Asia Using WRF/Chem 61

Yang Zhang, Xin Zhang, Changjie Cai, Kai Wang,and Litao Wang

11 Investigation of Trends in Aerosol Direct Radiative

Effects over North America Using a Coupled

Meteorology-Chemistry Model 67

Rohit Mathur, Jonathan Pleim, David Wong,Christian Hogrefe, Jia Xing, Chao Wei, Chuen-Meei Gan,and Francis Binkowski

12 Future Year Air Quality Change Due to Growth

in Aircraft Emissions and Changes in Climate 73

Saravanan Arunachalam, Matthew Woody,Jared H. Bowden, and Mohammad Omary

13 The Use of a Non Negative Matrix Factorization

Method Combined to PM2.5 Chemical Data for a Source

Apportionment Study in Different Environments 79

Adib Kfoury, Frederic Ledoux, Abdelhakim Limem,

Gilles Delmaire, Gilles Roussel, and Dominique Courcot

14 On the Interplay Between Upper and Ground Levels

Dynamics and Chemistry in Determining the Surface

Aerosol Budget 85

G. Curci, L. Ferrero, P. Tuccella, F. Angelini, F. Barnaba,

E. Bolzacchini, M.C. Facchini, G.P. Gobbi, T.C. Landi,M.G. Perrone, S. Sahgiorgi, and P. Stocchi

Contents xxix

15 Modeling of Aerosol Indirect Effects with WRF/Chem

over Europe 91

Paolo Tuccella, Gabriele Curci, Suzanne Crumeyrolle,and Guido Visconti

16 The Influence of Cloud Chemical Processes

on the Formation of Secondary Particulate Matter 97

Roland Schroedner, Ralf Wolke, Andreas Tilgner,

and Hartmut Herrmann

17 An Improved Volatility Basis Set for Modeling OrganicAerosol in Both CAMx and CMAQ 103

Bonyoung Koo, Eladio Knipping, and Greg Yarwood

18 Issues Related to On/Offline Meteorological

and Atmospheric Chemistry Model Coupling 109

Jonilda Kushta, Marina Astitha, Stavros Solomos,

and George Kallos

19 Increases in Wintertime Oxidation Capacity Counteract

the Success of Emission Reduction Measures in Europewith Respect to Secondary Inorganic Aerosols 115

Dominik Brunner, Christoph Knote, Lea Giordano,

and Christoph Hueglin

20 Investigating the Contribution of Biogenic Emissions

to the Formation of Secondary Pollutants in Portugal 121

Oxana Tchepel, Joana Ferreira, Helena Martins,

Carlos Silveira, Ana Isabel Miranda, and Carlos Borrego

21 Modelling Aerosol-Cloud-Meteorology Interaction: A

Case Study with a Fully Coupled Air Quality Model

(GEM-MACH) 129

W. Gong, P.A. Makar, J. Zhang, J. Milbrandt, and S. Gravel

22 Evaluation of Cloud Chemistry Mechanism Towards

Laboratory Experiments 137

Yoann Long, Laurent Deguillaume, and Nadine Chaumerliac

23 Effects of Surf Zone Sea-Spray Particles on Aerosol

Concentration in Coastal Area 143

Gilles Tedeschi and Jacques Piazzola

24 Novel Pathways to Form Secondary Organic Aerosols:

Glyoxal SOA in WRF/Chem 149

Christoph Knote, Alma Hodzic, Jose L. Jimenez,

Rainer Volkamer, John J. Orlando, Sunil Baidar,

Jerome Brioude, Jerome Fast, Drew R. Gentner,

Allen H. Goldstein, Patrick L. Hayes, W. Berk Knighton,

xxxContents

Hilke Oetjen, Ari Setyan, Harald Stark, Ryan M. Thalman,

Geoffrey Tyndall, Rebecca Washenfelder, Eleanor Waxman,

and Qi Zhang

25 Modeling Seasonal Changes in Organic Aerosol

Composition at the puy de Dome (France) 155

Christelle Barbet, Laurent Deguillaume,

and Nadine Chaumerliac

26 Using WRF-CMAQ Air Quality Modelling System

to Estimate BaP Concentrations over Zaragoza (Spain) 161

Roberto San Jose, Juan Luis Pere,z, Marisol Callen,

Jose Manuel Lopez, and Ana Mastral

27 The POAEMM Project: Prediction of Spatialand Temporal Variation of Marine Aerosols in Coastal Area 167

Gilles Tedeschi, J. Piazzola, L. Gardenal, V. Pourret,

and M. Martet

28 An Integrated Weather and Sea State Forecasting

System for the Arabian Peninsula (WASSF) 173

Jumaan Al Qahtani, Elyas Alaa, George Kallos,

George Galanis, Sarantis Sorianos, Christina Mitsakou,

Chris Spyrou, Christina Kalogeri, Nikolaos Bartsotas,

John Athanaselis, Vassilios Vervatis, Stavros Solomos,

Panagiotis Axaopoulos, Daniel W. Beard,

and Ioannis Alexiou

29 Modelling Past and Future Changes in Secondary

Inorganic Aerosol Concentrations in the UK 179

Riinu Ots, Anthony Dore, Y. Sim Tang, Christine F. Braban,

Massimo Vieno, and Mark Sutton

30 Modelling the Impact of Energy Transitions on Air

Quality and Source Receptor Relations 183

C. Hendriks, J. Kuenen, R. Kranenburg, M. Schaap,

and P. Builtjes

31 Impact of Mercury Chemistry on Regional

Concentration and Deposition Patterns 189

Johannes Bieser, Volker Matthias, Armin Aulinger,

Beate Geyer, Ian Hedgecock, Francesco DeSimone,

Christoph Gencarelli, and Oleg Travnikov

32 A Multiscale Modeling Study to Assess Impacts

of Full-Flight Aircraft Emissions on Upper Troposphereand Surface Air Quality 197

Lakshmi Pradeepa Vennam, Saravanan Arunachalam,

B.H. Baek, Mohammad Omary, Francis Binkowski,

Contents xxxi

Seth Olsen, Rohit Mathur, William Vizuete,and Gregg Fleming

33 Relevance of Photolysis Frequencies Calculation Aspectsto the Ozone Concentration Simulation 205

Malte Uphoff, David Grawe, Ole Ross,

and K. Heinke Schliinzen

34 Air Pollution in China in January 2013 211

Volker Matthias, Armin Aulinger, Johannes Bieser,

Beate Geyer, and Markus Quante

35 Impact on Ontario's Air Quality due to Changesin North American Emission from 2005 to 2020 219

Andrei Chtcherbakov, R. Bloxam, S. Wong, and Y. Hall

36 Modelling the Concentration and Deposition of HeavyMetals in the UK 223

Anthony Dore, Stephen Hallsworth, Mafgorzata Werner,

Maciej Kryza, Eiko Nemitz, Heath Malcolm, Stefan Reis,and David Fowler

37 A Process Analysis of the Impact of Air-Quality/WeatherFeedbacks Using GEM-MACH 229

Paul A. Makar, Wanmin Gong, Junhua Zhang,Jason Milbrandt, Sylvie Gravel, Balbir Pabla,

and Philip Cheung

38 Analog-Based Postprocessing Methods for Air QualityForecasting 237

Luca Delle Monache, Irina Djalalova, and James Wilczak

39 Comparing Different Modeling Approaches in ObtainingRegional Scale Concentration Maps 241

Bino Maiheu, Nele Veldeman, Peter Viaene,Koen De Ridder, Dirk Lauwaet, Felix Deutsch,

Stijn Janssen, and Clemens Mensink

40 Impact of RACM2, Halogen Chemistry, and UpdatedOzone Deposition Velocity on Hemispheric Ozone Predictions 247

Golam Sarwar, Jia Xing, James Godowitch,Donna Schwede, and Rohit Mathur

41 A Global Wildfire Emission and AtmosphericComposition: Refinement of the Integrated System for

Wild-Land Fires IS4FIRES 253

Joana Soares and Mikhail Sofiev

xxxii Contents

42 The Regional LOTOS-EUROS Model on Tour 259

Renske Timmermans, Carlijn Hendriks,

Richard Kranenburg, Arjo Segers, and Roy Wichink Kruit

43 The Incorporation of the US National Emission

Inventory into Version 2 of the Hemispheric Transportof Air Pollutants Inventory 265

George Pouliot, Terry Keating, Greet Maenhout,

Charles Chang, James Beidler, and Ryan Cleary

44 Impact of Vertical and Horizontal Resolutions

on Chemistry Transport Modelling 269

Bertrand Bessagnet, Augustin Colette, Etienne Terrenoire,

Laurent Menut, and Philippe Thunis

45 A Model Study on the Effects of Emission Reductions

on European Air Quality Between 1990 and 2020 275

Sebnem Aksoyoglu and Andre S.H. Prevot

46 Analysis and Modelling ofAmbient Air Toxics Pollutants

in Canada with Environment Canada AURAMS Model 281

Jack Chen, Craig Stroud, Calin Zaganescu, Gilles Morneau,

and Daniel Wang

47 Investigating the Coherence Between a Global

and a Limited Area Model for Dust Particle Production

and Distribution in N-Africa 289

Marina Astitha, Chris Spyrou, Serafim Kontos,

George Kallos, and Jos Lelieveld

48 Effects of Future Ship Emissions in the North Sea on Air

Quality 295

Armin Aulinger, Volker Matthias, Johannes Bieser,

and Markus Quante

49 Temporally and Spatially Resolved Air Pollution

in Georgia Using Fused Ambient Monitor Data

and Chemical Transport Model Results 301

Sheila A. Sororian, Heather A. Holmes, Mariel Friberg,Cesunica Ivey, Yongtao Hu, James A. Mulholland,

Armistead G. Russell, and Matthew J. Strickland

50 Maritime Sector Emissions Contribution

to the Particulate Matter Pollution in a Mediterranean

City-Port: A Modeling Approach 307

A. Poupkou, N. Liora, A. Karagiannidis, T. Giannaros,

C. Giannaros, D. Melas, and A. Argiriou

Contents xxxiii

51 Application and Evaluation of the High-Resolution

Regional Scale FRAME Model for Calculation

of Ammonia and Ammonium Air Concentrations for

Poland for the Years 2002-2008 311

Maciej Kryza, Anthony J. Dore, Malgorzata Werner,and Kinga Walaszek

52 Regional Transports of Atmospheric NOx and HNO3

over Cape Town 317

Babatunde J. Abiodun, Adefolake M. Ojumu,Samantha Jenner, and Tunde V. Ojumu

53 The Impact of Transboundary Transport of Air

Pollutants on Air Quality in the United Kingdom and Poland 323

Malgorzata Werner, Maciej Kryza, Anthony J. Dore,

and Kinga Walaszek

54 A 40-Year History of a Simple Urban Dispersion Model

and Its Evaluation 329

Steven Hanna

55 Assessment of the Effect of Multiscale Interactions

on the Atmospheric Flow and the Dispersion of Air

Pollution in the City of Paris 341

Ph. Barmpas, G. Tsegas, I. Douros, N. Moussiopoulos,and V. Akylas

56 PAHs Modelling over Urban Area of Rome: Integrationof Models Results with Experimental Data 349

Claudio Gariazzo, Camillo Silibello, Sandro Finardi,

Paola Radice, Alessio D'Allura, Monica Gherardi,

and Angelo Cecinato

57 Modelling the Effects of Urban Morphology, Traffic and

Pedestrian Dynamics on Students' Exposure

to Air Pollution 355

Jorge Humberto Amorim, Joana Valente, Claudia Pimentel,

Pedro Cascao, Vera Rodrigues, Ana Isabel Miranda,

and Carlos Borrego

58 LES of Advective and Turbulent Passive Scalar Fluxes

in a Street Intersection 361

Vladimir Fuka, Libor Kukacka, and Josef Brechler

59 Two-Phase Accidental Dense Gas Releases Simulations

with the Lagrangian Particle Model Microspray 367

L. Mortarini, G. Tinarelli, S. Trini Castelli, G. Carlino,

and D. Anfossi

xxxiv Contents

60 Modeling of the Urban Heat Island and its effect on

Air Quality using WRF/WRF-Chem- Assessment

of mitigation strategies for a Central European city 373

Joachim Fallmann, Stefan Emeis, and Peter Suppan

61 Assessment of Three Dynamical Urban Climate

Downscaling Methods 379

Rafiq Hamdi, Hans Van De Vyver, Rozemien De Troch,

Piet Termonia, and Andy Delcloo

62 Validating the RIO-IFDM Street Canyon Coupling over

Antwerp, Belgium 385

Wouter Lefebvre, Martine Van Poppel, Bino Maiheu,

Stijn Janssen, Evi Dons, and Clemens Mensink

63 The Influence of the Changing NOx-SpIit for Compliance

to the European Limit Values in Urban Areas 391

Wouter Lefebvre, Charlotte Vanpoucke, Frans Fierens,

Stijn Janssen, Bart Degraeuwe, and Clemens Mensink

64 Evaluation of Air Pollution Models for Their Use in

Emergency Response Tools in Built Environments: The

'Michelstadt' Case Study in COST ES1006 ACTION 395

Bemd Leitl, Silvia Trini Castelli, Kathrin Baumann-Stanzer,

Tamir G. Reisin, Photios Barmpas, Marton Balczo,

Spyros Andronopoulos, Patrick Armand, Klara Jurcakova,

Maya Milliez, and All COST ESI006 Members

65 Development of a Numerical Prediction Model System

for the Assessment of the Air Quality in Budapest 401

Zita Ferenczi, Krisztina Labancz, and Roland Steib

66 Analysis of the Differences Between Pollution Levels into

a New and an Old District of a Big City Using Dispersion

Simulations at Microscale 407

Gianni Tinarelli, Lorenzo Mauri, Cristina Pozzi,

Alessandro Nanni, Andrea Ciaramella, Valentina Puglisi,Tommaso Truppi, and Giuseppe Carlino

67 Water Tank Simulation of a Dense Fluid Release 411

L. Mortarini, S. Alessandrini, E. Ferrero, D. Anfossi,

and M. Manfrin

68 The Porosity Concept Applied to Urban Canopy

Improves the Results of Gaussian Dispersion Modellingof Traffic-Dominated Emissions 417

Marko Kaasik, Mihkel Pindus, Tanel Tamm, and Hans Orru

Contents xxxv

69 An Evaluation of the Box Model Estimating Carbon

Monoxide Concentration in the City of Caracas, Venezuela 421

Arcangelo Sena D'Anna, Luis Diaz Alarcon,

Alberto Espinoza Cedeno, and Enrique Chacon Melgarejo

70 Implications of Vegetation on Pollutant Dispersionin an Idealized Urban Neighborhood 427

Christof B. Gromke and Bert J.E. Blocken

71 Dynamic Evaluation ofthe CMAQv5.0 Modeling System:

Assessing the Model's Ability to Simulate Ozone ChangesDue to NOx Emission Reductions 433

Kristen M. Foley, Christian Hogrefe, George A. Pouliot,

Shawn J. Roselle, Norm Possiel, Heather Simon,

and Brian Timin

72 Evaluation of a Chemical Data Assimilation System

Jeremy D. Silver, Jesper H. Christensen, Michael Kahnert,

Lennart Robertson, and J0rgen Brandt

73 Resolving and Quantifying Ozone Contributions from

Boundary Conditions Within Regional Models

Greg Yarwood, Chris Emery, Kirk Baker, and Pat Dolwick

74 Epluribus unum: KZ Filters and Ensemble Air Quality

ModelingS. Galmarini, I. Kioutsioukis, and E. Solazzo

75 Air Quality Model Evaluation Using Gaussian Process

Modelling and Empirical Orthogonal Function Decomposition 457

Tianji Shi, Douw Steyn, and William J. Welch

76 AQMEII Phase 2: Overview and WRF-CMAQ

Application Over North America 463

Christian Hogrefe, Stefano Galmarini, Shawn Roselle,

and Rohit Mathur

77 Modelling UK Air Quality for AQMEII2 with the Online

Forecast Model AQUM 467

Lucy Davis, Nick Savage, Paul Agnew, Carlos Ordonez,

and Marie Tilbee

78 Model Inter-comparison Study Between

NMMB/BSC-CTM and Enviro-HIRLAM On-Line

Systems Contributing to the AQMEII-Phase2 Initiative 475

Alba Badia, Oriol Jorba, Roman Nuterman,

Alexander Baklanov, and Jose Maria Baldasano

439

445

451

xxxvi Contents

79 Can We Explain the Observed Decrease in Secondary

Inorganic Aerosol and Its Precursors Between 1990

and 2009 over Europe Using LOTOS-EUROS? 481

S. Banzhaf, M. Schaap, R. Kranenburg, A.M.M. Manders,

A.J. Segers, A.H.J. Visschedijk, H.A.C. Denier van der Gon,J.J.P. Kuenen, C. Hendriks, E. van Meijgaard, L.H. van Ulft,

and P.J.H. Builtjes

80 Application and Evaluation of High-ResolutionWRF-CMAQ with Simple Urban Parameterization 489

Jonathan Pleim, Robert Gilliam, Wyat Appel,James Godowitch, David Wong, George Pouliot,

and Limei Ran

81 A One Year Evaluation of the CTM CHIMERE UsingSURFEX/TEB Within the High Resolution NWP Models

ALARO and ALADIN for Belgium 495

Andy Delcloo, Rafiq Hamdi, Alex Deckmyn,Hugo De Backer, Gilles Foret, Piet Termonia,

and Herman Van Langenhove

82 Application of Performance Indicators Based

on Observation Uncertainty to Evaluate a Europe-WideModel Simulation at Urban Scale 499

Philippe Thunis, Bertrand Bessagnet, Etienne Terrenoire,

and Augustin Colette

83 Multi-model Ensembles: How Many Models Do We Need? 505

Efisio Solazzo and Stefano Galmarini

84 Diagnostic Evaluation of NOx Emission Upgrade on Air

Quality Forecast 511

Li Pan, Daniel Tong, Pius Lee, Hyuncheol Kim,

Tianfeng Chai, and Charles Ding

85 Presentation and Validation of a New BuildingDownwash Model 519

Wouter Lefebvre, Guido Cosemans, Stijn Janssen,

and Clemens Mensink

86 Boundary-Layer and Air Quality Study at "Station

Nord" in Greenland 525

Ekaterina Batchvarova, Sven-Erik Gryning, Henrik Skov,

Lise Lotte S0rensen, Hristina Kirova, and Christoph Mtinkel

87 Evaluation of Mesoscale Model Profiles AgainstConsecutive Radiosounding Data During the Sofia 2003

Experiment 531

Hristina Kirova, Ekaterina Batchvarova, and Valeri Nikolov

Contents xxxvii

88 The Use of a Mesoscale Modeling System Togetherwith Surface and Upper Observational Data to Estimate

Hourly Benzene Impacts in a Mountainous Coastal Area 535

V. Valdenebro, E. Saez de Camara, G. Gangoiti, L. Alonso,

J.A. Garcia, J.L. Ilardia, N. Gonzalez, and E. Arraibi

89 A Sensitivity Analysis of the WRF Model to Shortwave

Radiation Schemes for Air Quality Purposesand Evaluation with Observational Data 539

Kinga Wataszek, Maciej Kryza, and Malgorzata Werner

90 Comparing WRF PBL Schemes with Experimental Data

over Northern Italy 545

A. Balzarini, F. Angelini, L. Ferrero, M. Moscatelli,

G. Pirovano, G.M. Riva, A. Toppetti, and E. Bolzacchini

91 Surface Ozone Variability in Synoptic Pattern Perspectives 551

Hyun Cheol Kim, Heesu Choi, Fantine Ngan, and Pius Lee

92 WRF-Chem Model Sensitivity Analysis to Chemical

Mechanism Choice 557

A. Balzarini, L. Honzak, G. Pirovano, G.M. Riva,

and R. Zabkar

93 Assimilation of Satellite Oceanic and AtmosphericProducts to Improve Emission Forecasting 563

Daniel Q. Tong, Hang Lei, Li Pan, Tianfeng Chai,

Hyuncheol Kim, Pius Lee, Rick Saylor, Menghua Wang,

and Shobha Kondragunta

94 Assimilation and Forecasting Fine Aerosols Over North

America in Summer 2012 571

Mariusz Pagowski and Georg A. Grell

95 Evaluating the Vertical Distribution of Ozone and Its

Relationship to Pollution Events in Air Quality Models

Using Satellite Data 575

Jessica L. Neu, Gregory Osterman, Annmarie Eldering,Rob Pinder, Jeff McQueen, and Youhua Tang

96 Building and Testing Atmospheric Chemistry ReanalysisModeling System 581

Tianfeng Chai, Pius Lee, Li Pan, Hyuncheol Kim, and

Daniel Tong

97 Intensive Campaigns Supported by Air Quality

Forecasting Capability to Identify Chemical

and Atmospheric Regimes Susceptible to Standard Violations 587

Pius Lee, Li Pan, Hyuncheol Kim, and Daniel Tong

xxxviii Contents

98 Modeling of Air Pollution over the Ganges Basin and

North-West Bay of Bengal in the Early Post-monsoon

Season Using the NASA GEOS-5 Model 593

Pavel Kishcha, Arlindo M. da Silva, Boris Starobinets,

and Pinhas Alpert

99 The Impact of a Wildland Fire on Air Pollution

Concentrations Using WRF/Chem/Fire: An Applicationover Murcia (Spain) 599

Roberto San Jose, Juan Luis Perez, R.M. Gonzalez, J. Pecci,

and M. Palacios

100 Assimilation of PM Ground Measurements: Looking for

Optimal Settings for the PM Forecasts 605

Arjo Segers, Astrid Manders, Renske Timmermans,

and Martijn Schaap

101 Spatial and Temporal Extension of a Novel HybridSource Apportionment Model 611

Cesunica Ivey, Heather Holmes, Yongtao Hu,

James A. Mulholland, and Armistead G. Russell

102 Application of Data Assimilation to the UK Air Quality Forecast... 617

Andrea Fraser, John Abbott, and Rebecca Rose

103 Improvements to the Regional Deterministic Air QualityAnalysis System for Ozone and PM2.5 at the Surface

at the Canadian Meteorological Center 623

Yulia Zaitseva, Alain Robichaud, Richard Menard,

David Anselmo, Gilles Verner, Lorraine Veillette,

Christophe Malek, and Isabelle Provost

104 Current and Future Developments in Numerical Air

Quality Forecasting in Canada 629

S. Menard, S. Gravel, M.D. Moran, H. Landry, A. Kallaur,R. Pavlovic, P.A. Makar, C. Stroud, W. Gong, J. Chen,

D. Anselmo, and S. Cousineau

Index 635