23rd Conference on Agriculture and Forest Meteorology

MON 2 NOV___________________________
8:40 AM JOINT SESSION J1: WEATHER DATA REQUIREMENTS FOR INTEGRATED PEST MANAGEMENT (Parallel with Session 1)
8:40 AM SESSION 1: VEGETATION-ATMOSPHERE INTERACTIONS- ENERGY AND WATER EXCHANGES OVER FORESTS (Parallel with Joint Session J1)
Chairpersons: Kyaw Tha Paw U, Univ. of California, Davis, CA
8:40 AM 1.1 CANOPY STRUCTURE AND TURBULENT TRANSPORTS. David R. Fitzjarrald, Univ. at Albany/State Univ. of New York (SUNY), Albany, NY; and G. G. Parker and R. K. Sakai
9:00 AM 1.2 THE ENERGY BALANCE OF A TROPICAL FORESTED SITE ON THE TIWI ISLANDS, NORTHERN TERRITORY, AUSTRALIA. Jason Beringer, Monash Univ., Melbourne, Vic., Australia; and N. J. Tapper
9:20 AM 1.3 INFLUENCE OF THE SEQUENCE AND INTENSITY OF RAIN EVENTS AND ATMOSPHERIC CONDITIONS IN THE EVAPORATION OF THE INTERCEPTED WATER BY THE AMAZON FOREST. Aristides Ribeiro, Univ. Federal de Vicosa, Vicosa, MG, Brazil; and N. A. Calasans, M. O. Santana, G. C. Sediyama, J. M. N. Costa, and P. J. Hamakawa
9:40 AM 1.4 BOUNDARY LAYER CLOUD CLIMATOLOGY AND ENHANCED FOREST-ATMOSPHERE EXCHANGE. Jeffrey M. Freedman, SUNY, Albany, NY; and D. R. Fitzjarrald, K. E. Moore, and R. K. Sakai
10:00 AM COFFEE BREAK
10:30 AM 1.5 WITHDRAWN.
10:50 AM 1.6 EVAPORATION AND TRANSPIRATION OF CONIFEROUS FORESTS IN CENTRAL EUROPE, A COMPARISON IN QUANTITY AND METHODS OF INVESTIGATION. Lutz W. Jaeger, Freiburg Univ., Freiburg, Baden-Wuerttemberg, Germany
11:10 AM 1.7 STUDY OF FOREST-ATMOSPHERIC INTERACTION OVER A BEECH FOREST. Jielun Sun, National Center for Atmospheric Research (NCAR), Boulder, CO; and N. O. Jensen, P. Hummelshoej, H. Jorgensen, L. Mahrt, and Z. Chen
11:30 AM 1.8 THE CHEQUAMEGON ECOSYSTEM-ATMOSPHERE STUDY- OVERVIEW AND PRELIMINARY RESULTS. Kenneth J. Davis, Univ. of Minnesota, St. Paul, MN; and B. C. Cook, W. B. Sea, C. Yi, P. V. Bolstad, J. Martin, P. S. Bakwin, C. Zhao, J. G. Isebrands, R. Teclaw, and V. Gutschick
11:50 AM 1.9 THE SNOW MELT ENERGY BALANCE OF A CLEARCUT, FOREST AND JUVENILE STAND. Ralph S. Adams, B.C. Ministry of Forests, Kamloops, BC, Canada; and D. L. Spittlehouse and R. D. Winkler
11:10 AM SESSION 2: EFFECTS OF WEATHER AND CLIMATE ON CROP PRODUCTION (Parallel with Sessions 1 & 3)
Chairpersons: Rodger R. Getz, Agricultural Weather Information Service, Inc., Auburn, AL; and Joanne Logan, Univ. of Tennessee, Knoxville, TN
11:10 AM 2.1 EFFECTS OF WEATHER ON COTTON RESPONSES TO TRIBUFOS AND TRIBUFOS PLUS ETHEPHON HARVEST AID CHEMICALS. Joanne Logan, Univ. of Tennessee, Knoxville, TN; and C. O. Gwathmey
11:30 AM 2.2 CLIMATIC FACTORS INFLUENCING GRAPEVINE PHENOLOGY IN BORDEAUX, FRANCE. Robert E. Davis, Univ. of Virginia, Charlottesville, VA; and G. V. Jones
11:50 AM 2.3 MODELS FOR PREDICTING FRUIT DIAMETER OF APPLE BY USING HEAT UNITS. Samuel O. Ortega-Farias, Univ. de Talca, Talca, Chile; and L. Flores
12:10 PM LUNCH BREAK
1:30 PM 2.4 CROP GROWTH AND YIELD ESTIMATION USING CURRENT WEATHER FORECASTS AND WEATHER OBSERVATIONS. Goshko A. Georgiev, Univ. of Georgia, Griffin, GA; and G. Hoogenboom
1:50 PM 2.5 LINKING A DYNAMIC PEST MODEL FOR PEANUT LEAFMINER WITH THE PEANUT CROP SIMULATION MODEL CROPGRO. S. Sridhar, Centre for Atmospheric and Oceanic Sciences, Bangalore, GA, India; and G. Hoogenboom and G. Georgiev
2:10 PM 2.6 MODELING WINTER WHEAT GRAIN YIELD AND ECONOMIC IMPACTS USING A DECISION SUPPORT SYSTEM FOR AGRICULTURAL MANAGEMENT- A CASE STUDY FOR THE SOUTH OF ROMANIA. Mihaela Cornelia Carmen M. Podani, National Inst. of Meteorology and Hydrology, Bucharest, Romania; and A. C. Marica
2:30 PM 2.7 DEVELOPMENT AND USE OF A DECISION SUPORT SYSTEM (SISDA) IN BRAZIL. Luiz C. Costa, Univ. Federal de Vicosa, Vicosa, MG, Brazil; and E. C. Mantovani, A. A. Soares, and B. G. Leal
2:50 PM 2.8 PERFORMANCE OF BRASSICA MODEL UNDER DIFFERENT ENVIRONMENT AND MANAGEMENT CONDITIONS. Vyas Pandey, Gujarat Agricultural Univ., Anand, Anand Dist., India; and A. M. Shekh
3:10 PM COFFEE BREAK
3:40 PM 2.9 ANALYSIS OF WINTER WEATHER AND SITE FACTORS AFFECTING THE SURVIVAL OF WINTER WHEAT. Henry N. Hayhoe, Agriculture and Agri-Food Canada, Ottawa, ON, Canada; and C. J. Andrews
4:00 PM 2.10 CAPTURE AND USE OF WATER BY SOYBEAN (GLYCINE MAX (L.)) MERRIL AT DIFFERENT PHENOLOGICAL PHASES AND DIFFERENT LEVELS OF WATER AVAILABILITY. Luiz C. Costa, Univ. Federal de Vicosa, Vicosa, MG, Brazil; and A. Confalone and C. R. Pereira
4:20 PM 2.11 WITHDRAWN.
4:40 PM 2.12 OPERATIONAL MODELING OF SOIL MOISTURE AT HIGH SPATIAL RESOLUTION IN THE CENTRAL U.S. Kenneth E. Kunkel, Illinois State Water Survey (ISWS), Champaign, IL; and N. E. Westcott and S. E. Hollinger
5:00 PM 2.13 SPATIAL INTERPOLATION OF GCM FORECASTS FOR CROP YIELD MODELING. Seth E. Snell, Boston Univ., Boston, MA; and S. Gopal, R. Kaufmann, and L. Scuderi
5:20 PM 2.14 ALABAMA CORN AND COTTON PRODUCTION AND ITS RELATIONSHIP TO PRECIPITATION. Donald J. Perkey, Inst. for Global Change Research and Education, Huntsville, AL; and C. E. Hayes
1:30 PM SESSION 3: VEGETATION-ATMOSPHERE INTERACTIONS- OBSERVATIONS OF CO2 FLUX (Parallel with Session 2)
Chairpersons: Xuhui Lee, Yale Univ., New Haven, CT
1:30 PM 3.1 ON MEASURING NET ECOSYSTEM CARBON EXCHANGE IN COMPLEX TERRAIN OVER TALL VEGETATION. Dennis D. Baldocchi, National Oceanic and Atmospheric Admin. (NOAA)/Atmospheric Turbulence and Diffusion Division (ATDD), Oak Ridge, TN; and K. Wilson and K. T. Paw U
1:50 PM 3.2 SUMMERTIME CARBON DIOXIDE, WATER VAPOR, SENSIBLE HEAT, AND MOMENTUM FLUXES WITHIN AND ABOVE AN OLD-GROWTH AND SECOND-GROWTH COASTAL TEMPERATE RAINFOREST. Thomas S. King, Univ. of California, Davis, CA; and K. T. Paw U, T. Hsiao, M. Falk, A. Moles, T. Matista, and J. Chen
2:10 PM 3.3 LONG-TERM CARBON DIOXIDE AND WATER VAPOR FLUX MEASUREMENTS ABOVE A PACIFIC NORTHWEST DOUGLAS-FIR FOREST. Eva-Marie Jork, Univ. of British Columbia, Vancouver, BC, Canada; and T. A. Black, G. B. Drewitt, E. R. Humphreys, Z. Nesic, R. J. Ketler, M. D. Novak, N. J. Livingston, and D. L. Spittlehouse
2:30 PM 3.4 FLUXES OF LATENT HEAT, SENSIBLE HEAT AND CARBON DIOXIDE ABOVE A MIXED HARDWOOD FOREST IN SOUTHERN INDIANA. Hans Peter Schmid, Indiana Univ., Bloomington, IN; and B. Offerle, N. Shurpali, and C. S. B. Grimmond
2:50 PM 3.5 CARBON DIOXIDE EXCHANGE OF COAST MEDITERRANEAN MACCHIA DURING THE DROUGHT SEASON. Enzo Magliulo, CNR-INAPA, Napoli, Italy; and P. Duce, F. Miglietta, and D. Spano
3:10 PM COFFEE BREAK
3:40 PM 3.6 ANNUAL WATER AND CARBON BALANCE FOR A NATURAL GRASSLAND. Tilden P. Meyers, NOAA/ATDD, Oak Ridge, TN; and D. D. Baldocchi
4:00 PM 3.7 MONITORING CARBON DIOXIDE FLUXES IN CROP-FALLOW ROTATION. Sean M. McGinn, Agriculture and Agri-Food Canada, Lethbridge, AB, Canada; and O. O. Akinremi
4:20 PM 3.8 CO2 BUDGET OF INLAND ARCTIC TUNDRA ECOSYSTEMS IN ALASKA, MICROMETEOROLOGICAL MEASUREMENTS AND EMPIRICAL MODEL EVALUATIONS. Yoshinobu Harazono, National Inst. of Agro-Environmental Sciences (NIAES), Tsukuba, Ibaragi, Japan; and M. Mano, M. Yoshimoto, G. L. Vourlitis, and W. C. Oechel
4:40 PM 3.9 SEASONAL EXCHANGE OF CARBON DIOXIDE AND WATER VAPOUR FROM A DISTURBED RAISED BOG. Joost P. Nieveen, Wageningen Agricultural Univ., Wageningen, The Netherlands; and C. M. J. Jacobs
5:00 PM 3.10 INTRODUCING CO2 ASSIMILATION IN ISBA FOR INTERACTIVE VEGETATION. Jean-Christophe Calvet, Meteo-France/Centre National de Recherches Meteorologiques (CNRM), Toulouse, France; and J. Noilhan and J. -L. Roujean
7:30 PM WEATHER DATA REQUIREMENTS FOR IPM--DISCUSSION
Moderators: Bill Bland, Univ. of Wisconsin, Madison, WI

TUE 3 NOV ___________________________
8:40 AM SESSION 4: CROP/GRASS MICROCLIMATE (Parallel with Session 5)
Chairpersons: Richard L. Snyder, Univ. of California, Davis, CA
8:40 AM 4.1 COMPARISON OF BOWEN RATIO AND EDDY CORRELATION MEASUREMENTS OVER CORN AND SOYBEAN CANOPIES. Jerry L. Hatfield, U.S. Dept. of Agriculture (USDA)-Agricultural Research Service (ARS), Ames, IA; and J. H. Prueger
9:00 AM 4.2 EVALUATION OF SEASONAL AERODYNAMIC CHARACTERISTICS OF CORN AND SOYBEAN CANOPIES. John H. Prueger, USDA-ARS, Ames, IA; and T. D. Hill and J. L. Hatfield
9:20 AM 4.3 ENERGY BALANCE COMPARISONS OVER MULTIPLE SURFACES. Jerry L. Hatfield, USDA-ARS, Ames, IA; and J. H. Prueger, W. P. Kustas, and L. E. Hipps
9:40 AM 4.4 SURFACE RENEWAL ANALYSIS FOR SENSIBLE AND LATENT HEAT FLUX DENSITY OVER SPARSE CANOPY. Donatella Spano, Univ. of Sassari, Sassari, Italy; and P. Duce, R. L. Snyder, and K. T. Paw U
10:00 AM COFFEE BREAK
10:30 AM 4.5 A FIELD AND WIND TUNNEL STUDY OF THE VELOCITY AND SCALAR FIELDS AROUND A WINDBREAK. Helen A. Cleugh, Commonwealth Scientific and Industrial Research Organization (CSIRO), Canberra, ACT, Australia; and D. E. Hughes and M. J. Judd
10:50 AM 4.6 ENERGY BALANCE APPROACH TO UNDERSTANDING FREEZE PROTECTION METHODS. Richard L. Snyder, Univ. of California, Davis, CA
11:10 AM 4.7 TOMATO EVAPOTRANSPIRATION BY USING THE RESIDUAL ENERGY BALANCE METHOD. Samuel O. Ortega-Farias, Univ. de Talca, Talca, Chile; and S. Fuentes and C. Acevedo
11:30 AM 4.8 HOURLY ESTIMATION OF NET RADIATION OVER GRASS. Richard L. Snyder, Univ. of California, Davis, CA; and P. Duce, D. Spano, and S. Eching
11:50 AM 4.9 THE SIMULATION OF TRANSPIRATION USING GAS EXCHANGE ATMOMETERS. Graeme N. McIntyre, Univ. of Newcastle, Newcastle, NSW, Australia
12:10 PM LUNCH BREAK
1:30 PM 4.10 SOLUTIONS FOR THREE REGRESSION PROBLEMS COMMONLY FOUND IN METEOROLOGICAL DATA ANALYSIS. David W. Meek, USDA-ARS, Ames, IA; and J. H. Prueger and T. J. Sauer
1:50 PM 4.11 EFFECT OF DIFFERENT FINE WIRE THERMOCOUPLE DESIGN ON HIGH FREQUENCY TEMPERATURE MEASUREMENT. Pierpaolo Duce, CNR-IMAes, Sassari, Italy; and D. Spano and R. L. Snyder
8:40 AM SESSION 5: BOREAL ECOSYSTEM-ATMOSPHERE STUDY (BOREAS) (Parallel with Session 4)
Chairpersons: Jose D. Fuentes, Univ. of Virginia, Charlottesville, VA
8:40 AM 5.1 AN INTEGRATED MODELING APPROACH TO STUDY MASS AND ENERGY EXCHANGES IN THE SOIL-VEGETATION-ATMOSPHERE CONTINUUM. Lianhong Gu, Univ. of Virginia, Charlottesville, VA; and H. H. Shugart, J. D. Fuentes, T. A. Black, and S. R. Shewchuk
9:00 AM 5.2 A SPATIAL MODEL FOR PREDICTING THE DISTRIBUTION AND INTENSITY OF THE SOURCES AND SINKS FOR HEAT, CO2 AND WATER VAPOUR FROM BOREAS. Constance M. Brown-Mitic, McGill Univ., Montreal, PQ, Canada; and P. H. Schuepp, R. L. Desjardins, and I. J. MacPherson
9:20 AM 5.3 FLUX MEASUREMENTS AND CHARACTERIZATION OVER THE BOREAL FOREST OF CANADA. Segun O. Ogunjemiyo, McGill Univ., Montreal, PQ, Canada; and P. H. Schuepp, M. Beauchemin, I. J. MacPherson, and . Desjardins
9:40 AM 5.4 CHANGES IN FOREST-ATMOSPHERE EXCHANGE AND LIGHT INTERCEPTION IN DECIDUOUS CANOPIES DURING LEAF SENESCENCE. Ralf M. Staebler, SUNY, Albany, NY; and J. D. Fuentes, D. R. Fitzjarrald, K. E. Moore, and R. K. Sakai
10:00 AM COFFEE BREAK
10:30 AM 5.5 INTERANNUAL VARIABILITY OF CARBON DIOXIDE AND WATER VAPOR FLUXES ABOVE A BOREAL ASPEN FOREST. Zhong Chen, Univ. of British Columbia, Vancouver, BC, Canada; and T. A. Black, A. G. Barr, P. C. Yang, W. J. Chen, Z. Nesic, R. V. Swanson, and M. D. Novak
10:50 AM 5.6 WITHDRAWN.
11:10 AM 5.7 INFERRING THE SOURCE STRENGTH OF BIOGENIC HYDROCARBONS FROM AMBIENT CONCENTRATIONS. Jose D. Fuentes, Univ. of Virginia, Charlottesville, VA; and L. Gu and D. Wang
12:10 PM LUNCH BREAK
1:30 PM POSTER SESSION P1: AGRICULTURAL OPERATIONS AND AGROCLIMATOLOGY (Parallel with Sessions 4 & 6)
P1.1 RAINFALL INTERCEPTION IN YOUNG AND MATURE CONIFER FORESTS IN BRITISH COLUMBIA. David L. Spittlehouse, BC Forest Service, Victoria, BC, Canada
P1.2 EVAPOTRANSPIRATION RATE FORECAST APPLYING A NEW METHODOLOGY FOR REGIONAL CENTERS OF METEOROLOGY. Raffi A. Sismanoglu, Meteorological Regional Center of Rio de Janeiro, Rio de Janeiro, Brazil; and S. C. Chou, J. E. Prates, and C. R. Pereira
P1.3 MICROCLIMATE EFFECTS ON THE POPULATION DYNAMICS OF THE ENDANGERED MISSOURI BLADDERPOD. Fikri A. Akyuz, Univ. of Missouri, Columbia, MO; and G. D. Willson and L. P. Thomas
P1.4 IMPACT OF METEOROLOGICAL FACTORS ON THE DEVELOPMENTAL PATTERN AND YIELD OF CORN IN NORTHERN POLAND. Zbigniew Szwejkowski, Olsztyn Univ. of Agriculture and Technology, Olsztyn, Poland
P1.5 ENSO RELATED CLIMATE AND AGRICULTURAL IMPACTS OVER THE GREAT PLAINS AND MIDWEST. Steven A. Mauget, USDA-ARS, Lubbock, TX; and D. R. Upchurch
P1.6 COMPARISON OF OPEN-SITE AND BELOW-CANOPY CLIMATIC CONDITIONS WITHIN AN EASTERN NORTH AMERICAN DECIDUOUS FOREST. Scott M. Robeson, Indiana Univ., Bloomington, IN; and C. S. B. Grimmond and J. Schoof
P1.7 IMPACTS ON WEST TEXAS AS PREDICTED BY A GCM DOUBLED CO2 SCENARIO. Jesse D. Kenyon, Texas Tech Univ., Lubbock, TX; and R. E. Peterson, D. B. Thompson, and T. M. Dorman
P1.8 THE IMPACT OF EL NINO SOUTHERN OSCILLATION ON RICE PRODUCTION IN CENTRAL LUZON. Helen Grace S. Centeno, International Rice Research Inst., Los Banos, Laguna, Philippines; and G. L. Hammer, R. C. Stone, and J. E. Sheehy
P1.9 MODELING EFFECTS OF CLIMATE VARIABILITY ON MAIZE PRODUCTIVITY IN ROMANIA WITHDRAWN. Adriana-Cornelia C. Marica, National Institute of Meteorology and Hydrology, Bucharest, Bucharest, Romania; and A. M. Roman and M. C. C. Podani
P1.10 ZONALITY OF THE DROUGHT PHENOMENON ON ROMANIAN TERRITORY UTILIZING PALFAI ARIDITY INDEX AND THE IMPACT UPON AGRICULTURAL YIELDS. Elena L. Savin, National Inst. of Meteorology and Hydrology, Bucharest, Romania; and B. Cusursuz, S. Oancea, and V. Adamiade
P1.11 MAXIMUM TRANSPIRATION OF APPLE TREES ESTIMATED BY THE BIG LEAF MODEL AND SAP FLOW MEASURED BY THE HEAT BALANCE TECHNIQUE. Luiz R. Angelocci, Departmento de Fisica e Meteorologia, Piracicaba, Sao Paulo, Brazil; and C. Valancogne, A. R. Pereira, and N. A. Villa Nova
P1.12 MODELING MAIZE (ZEA MAYS L.) LEAF DEVELOPMENT UNDER DIFFERENT THERMAL ENVIRONMENTS. Marta G. Vinocur, Universidad Nacional de Rio Cuarto, Rio Cuarto, Cordoba, Argentina; and J. T. Ritchie
P1.13 WITHDRAWN.
P1.14 CLIMATIC IMPACTS ON WINTER WHEAT IN OKLAHOMA AND POTENTIAL APPLICATIONS TO CLIMATE PREDICTION AND POLICY RESPONSE. Scott Greene, Oklahoma Univ., Norman, OK; and W. E. Cook and M. L. Morrissey
P1.15 THE USE OF THE EXPOLINEAR MODEL TO PREDICT SOYBEAN GROWTH IN BRAZIL AND ARGENTINA. Luiz C. Costa, Univ. federal de Vicosa, Vicosa, MG, Brazil; and A. Confalone, C. R. Pereira, and E. A. Ferreira
P1.16 INFLUENCE OF CANOPY DENSITY ON RICE PADDY FIELD WATER TEMPERATURE. Tsuneo Kuwagata, Tohoku National Agricultural Experiment Station, Morioka, Iwate, Japan; and T. Hamasaki and T. Watanabe
P1.17 PLANT RESPONSE TO WEATHER VARIATION IN MEDITERRANEAN AREA. Carla Cesaraccio, Univ. of Sassari, Sassari, Italy; and D. Spano, P. Duce, and R. L. Snyder
P1.18 A METHOD TO DELINEATE AGROCLIMATE ZONES FOR IDAHO. Bruce R. Godfrey, Univ. of Idaho, Moscow, ID; and M. Molnau
P1.19 WITHDRAWN.
P1.20 THE RITCHIE MODEL FOR DETERMINING DRY BEAN CROP (PHASEOLUS VULGARIS L.) TRANSPIRATION AND SOIL WATER EVAPORATION. Lineu R. Rodrigues, Univ. Federal de Vicosa, Vicosa, MG, Brazil; and G. C. Sediyama, J. O. Soccol, and E. C. Mantovani
P1.21 AGROMETEOROLOGICAL MODEL FOR ESTIMATING THE AGROINDUSTRIAL YIELD OF SUGAR CANE. Juan S. Delgado-Rojas, Sao Paulo Univ., Piracicaba, Sao Paulo, Brazil; and V. Barbieri and P. Sentelhas
P1.22 MONITORING THE SOIL MOISTURE BALANCE OF A BOREAL ASPEN FOREST USING A DEEP GROUNDWATER PIEZOMETER. Alan G. Barr, AES, Saskatoon, SK, Canada; and G. van der Kamp, R. Schmidt, and T. A. Black
P1.23 NC-EO NET- TOWARDS AN INTEGRATED ENVIRONMENTAL OBSERVATION NETWORK FOR NORTH CAROLINA. Devdutta S. Niyogi, North Carolina State Univ., Raleigh, NC; and S. Raman and K. B. Perry
2:10 PM SESSION 6: SURFACE/CANOPY LAYER TURBULENCE MODELING AND PARAMETERIZATION
Chairpersons: Roger H. Shaw, Univ. of California, Davis, CA
2:10 PM 6.1 APPLICATION OF MONIN-OBUKHOV SIMILARITY OVER A MESQUITE DUNE SITE IN THE JORNADA EXPERIMENTAL RANGE. William P. Kustas, USDA-ARS, Beltsville, MD; and J. H. Prueger, L. E. Hipps, K. Ramalingam, J. L. Hatfield, T. J. Schmugge, A. Rango, J. C. Ritchie, and K. M. Havstad
2:30 PM 6.2 THE VALIDITY OF SIMILARITY THEORY IN THE ROUGHNESS SUBLAYER ABOVE FORESTS. Isobel J. Simpson, Univ. of Guelph, Guelph, ON, Canada; and G. W. Thurtell, H. H. Neumann, G. den Hartog, and . Edwards
2:50 PM 6.3 THE BULK CANOPY BOUNDARY LAYER RESISTANCE FROM 'LOCALIZED NEAR-FIELD' LAGRANGIAN THEORY. William J. Massman, USDA/Forest Service, Ft. Collins, Colorado
3:10 PM COFFEE BREAK
3:40 PM 6.4 WITHDRAWN.
4:00 PM 6.5 DECAYING SCALARS EMITTED BY A FOREST CANOPY- A NUMERICAL STUDY. Edward G. Patton, Univ. of Minnesota, St. Paul, MN; and K. J. Davis
4:20 PM 6.6 THE MORPHOLOGY OF CANOPY TURBULENCE. Roger H. Shaw, Univ. of California, Davis, CA; and E. G. Patton and L. Wang
4:40 PM 6.7 LARGE-EDDY SIMULATION OF PRESSURE-GRADIENT-VELOCITY COVARIANCE AND ITS PARAMETERIZATION WITHIN AND ABOVE A FOREST. Hong-Bing Su, Univ. of California, Davis, CA; and K. T. Paw U, R. H. Shaw, and C. -H. Moeng
5:00 PM 6.8 A NUMERICAL MODEL FOR THE PLANT CANOPY MICROCLIMATE. Takashi Asaeda, Saitama Univ., Urawa, Saitama, Japan; and V. T. Ca, T. Fujino, and H. Kodama
5:20 PM 6.9 A NEW HIGHER-ORDER CLOSURE CANOPY SURFACE MODEL FOR USE IN MESOSCALE CLIMATE SIMULATIONS- COMPARISON WITH CABAUW OBSERVATIONS. R. David Pyles, Univ. of California, Davis, CA; and B. C. Weare and K. T. Paw U
3:40 PM SESSION 7: COLLECTION AND DISTRIBUTION OF DATA AND INFORMATION (Parallel with Session 6)
Chairpersons: Joyce F. Strand, Univ. of California, Davis, CA
3:40 PM 7.1 THE COLORADO AGRICULTURAL METEOROLOGICAL NETWORK (COAGMET) -- A UNIQUE COLLABORATIVE SYSTEM SUPPORTING COLORADO AGRICULTURE. Nolan J. Doesken, Colorado State Univ., Ft. Collins, CO; and H. R. Duke, B. L. Hamblen, J. Kleist, T. B. McKee, M. S. McMillan, and H. F. Schwartz
4:00 PM 7.2 THE TEXAS MESONET -- CONCEPT TO REALITY. Gary L. Sickler, Texas A&M Univ., College Station, TX; and A. L. Doggett IV
4:20 PM 7.3 THE SOUTH AFRICA/OKLAHOMA MESONET INITIATIVE- A MULTI-NATIONAL EFFORT IN BUILDING AN EFFECTIVE MESOSCALE OBSERVATION NETWORK. Mark D. Brusberg, USDA, Washington, DC; and K. Monnik, F. Koch, R. Elliott, . Schaefer, and K. Crawford
4:40 PM 7.4 WITHDRAWN.
5:00 PM 7.5 INTERNET TOOLS FOR DELIVERY OF WEATHER DATA AND APPLICATIONS. Gerrit Hoogenboom, Univ. of Georgia, Griffin, GA; and G. Georgiev, B. Clarke, D. Gresham, and G. Harbers
5:20 PM 7.6 DEVELOPMENT OF NEAR-REAL-TIME, WEB-BASED MANAGEMENT TOOLS FOR AGRICULTURE AND NATURAL RESOURCES USING THE OKLAHOMA MESONET. J. D. Carlson, Oklahoma State Univ., Stillwater, OK; and D. S. Arndt, J. R. Greenfield, and A. Usman

WED 4 NOV __________________________
8:20 AM SESSION 8: VEGETATION-ATMOSPHERE INTERACTIONS- ENERGY AND WATER EXCHANGES OVER OTHER SURFACE TYPES (Parallel with Poster Session P2)
Chairpersons: Donatella Spano, Univ. of Sassari, Sassari, Italy
8:20 AM 8.1 WITHDRAWN.
8:40 AM 8.2 ENERGY BUDGET OF RANGELAND VEGETATION IN NORTH-WEST MEXICO. John B. Stewart, Univ. of Southampton, Southampton, Hampshire, UK; and C. J. Watts and J. Rodriguez
9:00 AM 8.3 SPATIAL VARIABILITY OF SOIL HEAT FLUX OF A SINGLE HONEY MESQUITE DUNE IN THE JORNADA BASIN. John H. Prueger, National Soil Tilth Lab., Ames, IA; and W. P. Kustas, L. E. Hipps, J. L. Hatfield, K. Ramalingam, A. Rango, J. C. Ritchie, and K. M. Havstad
9:20 AM 8.4 WATER, HEAT AND ENERGY FLUXES OVER A MEDITERRANEAN VEGETATION SURFACE WITHDRAWN. Federica Rossi, CNR-ISTEA, Bologna, Italy; and O. Facini, T. Georgiadis, D. Spano, and . Duce
9:40 AM 8.5 ENERGY BUDGET OF AN OPEN-CANOPIED, SEMI-ARID JUNIPER/SAGEBRUSH ECOSYSTEM. Peter M. Anthoni, Oregon State Univ., Corvallis, OR; and M. H. Unsworth, R. J. Vong, and B. E. Law
10:00 AM COFFEE BREAK
10:30 AM 8.6 SURFACE ENERGY FLUXES IN A BOREAL WETLAND. A. E. Suyker, Univ. of Nebraska, Lincoln, NE; and S. B. Verma
10:50 AM 8.7 SURFACE ENERGY FLUXES OF AN OPEN WATER AREA IN A MID-LATITUDE PRAIRIE WETLAND. George G. Burba, Univ. of Nebraska, Lincoln, NE; and S. B. Verma and J. Kim
11:10 AM 8.8 SPATIAL AND TEMPORAL PROPERTIES OF WATER VAPOR AND FLUX OVER A RIPARIAN CANOPY. Daniel I. Cooper, LANL, Los Alamos, NM; and W. E. Eichinger, L. Hipps, J. Kao, J. Reisner, S. Smith, and D. Williams
10:30 AM POSTER SESSION P2: SURFACE-ATMOSPHERE INTERACTIONS
P2.1 A TEMPERATURE AND WIND SPEED FLUCTUATIONS ANALYSIS IN THE NEGRO RIVER VALLEY, ARGENTINA. Marisa G. Cogliati, Univ. Nacional del Comahue, Neuquen, Argentina; and N. A. Mazzeo
P2.2 COMPARISON OF WIND AND TEMPERATURE PROFILES IN THE NOCTURNAL INVERSION LAYER ALONG LIMAY, NEUQUEN AND NEGRO RIVER VALLEYS. Jorge L. Lassig, Univ. Nacional del Comahue, Neuquen, Argentina; and M. G. Cogliati, C. Palese, M. A. Bastanski, and A. L. Flores
P2.3 FINDING AVERAGE FLUX DENSITIES IN HETEROGENEOUS TERRAIN- THE SLIMM EXPERIMENT. Joost P.L. Vermeulen, Vrije Univ., Amsterdam, The Netherlands; and A. G. C. A. Meesters, N. J. Bink, and H. F. Vugts
P2.4 DIFFERENCES IN AIR TEMPERATURE - PLANT GROWTH RELATIONSHIPS BETWEEN CHAMBER AND OPEN FIELD EXPERIMENTS. Takahiro Hamasaki, Tohoku National Agricultural Experiment Station, Morioka, Iwate, Japan; and M. Okada
P2.5 NEURAL NETWORK TO SIMULATE EVAPORATION FROM CLASS A PAN. Bachisio Arca, National Research Council, Sassari, Italy; and F. Benincasa, M. De Vincenzi, and A. Ventura
P2.6 CORN AND SOYBEAN EVAPORATION EQUIVALENT. Miguel A. Navarro Dujmovich, UNCPBA, Azul, Buenos Aires, Argentina; and A. Confalone
P2.7 SIMULATION OF WATER AND CARBON DYNAMICS IN THE MEDITERRANEAN MACCHIA ECOSYSTEM. Paolo Manunta, Univ. of Alberta, Edmonton, AB, Canada; and A. Canu, Y. Feng, S. Wang, R. F. Grant, and D. L. Verseghy
P2.8 THE IMPORTANCE OF STRUCTURE IN INTER-ANNUAL VEGETATION-ATMOSPHERE DYNAMICS. K. Caylor, Univ. of Virginia, Charlottesville, VA; and H. H. Shugart and S. D. Prince
P2.9 SOIL EVAPORATION GOVERNED BY CORN ROW SPACING. Brenton S. Sharratt, USDA-ARS, Morris, MN
P2.10 LONG WAVE MODEL FOR RADIATION BUDGET FOR PIRACICABA-SP-BRAZIL. Valter Barbieri, Univ. de São Paulo, Piracicaba, São Paulo, Brazil; and J. P. H. B. Ometto, A. R. Pereira, and N. A. Villa Nova
P2.11 WITHDRAWN.
P2.12 SAP FLOW, LEAF AREA AND REFERENCE EVAPOTRANSPIRATION RELATIONSHIPS IN IRRIGATED APPLE TREES ORCHARD. Luiz R. Angelocci, Dept. de Fisica e Meteorologia, Piracicaba, SP, Brazil; and C. Valancogne, N. A. Villa Nova, and A. R. Pereira
P2.13 SPATIALLY DISTRIBUTED WATER BALANCE MODELING IN MOUNTAINOUS REGIONS USING GEOSTATISTICS AND SIMPLE EVAPOTRANSPIRATION ESTIMATORS. D .R. Lapen, Agriculture and Agri-Food Canada, Ottawa, ON, Canada; and H. N. Hayhoe
P2.14 COMPARISON OF GAS EXCHANGE MEASUREMENTS AT DIFFERENT SPATIAL SCALES WITHIN AND ABOVE A TRITICALE CANOPY. Christof Ammann, Max Planck Institute for Chemistry, Mainz, Rheinland-Pfalz, Germany; and E. Simon, J. Busch, and F. X. Meixner
P2.15 WITHDRAWN.
P2.16 PENMAN - MONTEITH REFERENCE EVAPOTRANSPIRATON IN A TROPICAL CLIMATE. Antonio R. Pereira, Dept. de Fisica e Meteorologia, Piracicaba, SP, Brazil; and F. A. Pereira, N. A. Villa Nova, S. R. Magiotto, and M. V. Folegatti
P2.17 MODELING SCALAR SOURCE FOOTPRINTS USING INSTANTANEOUS TURBULENCE MEASUREMENTS AND BACK-TRAJECTORY ANALYSIS. Dennis Finn, Washington State Univ., Pullman, WA; and B. Lamb and M. Y. Leclerc
P2.18 ESTIMATION OF TOMATO EVAPOTRANSPIRATION BY USING THE PENMAN-MONTEITH METHOD. Samuel O. Ortega-Farias, Univ. de Talca, Talca, Chile; and C. Acevedo and S. Fuentes
P2.19 TEMPERATURE DEPENDENCE OF NOCTURNAL ECOSYSTEM RESPIRATION RATE IN A DECIDUOUS FOREST. Jose Maria N. da Costa, Univ. Federal de Vicosa, Vicosa, MG, Brazil; and S. C. Wofsy, M. L. Goulden, J. W. Munger, and S. M. Fan
P2.20 COMPARISON BETWEEN SURFACE RENEWAL AND SIMILARITY METHODOLOGIES FOR THE ESTIMATION OF SENSIBLE HEAT FLUX. Teodoro Georgiadis, CNR-FISBAT, Bologna, Italy; and P. Duce, F. Rossi, R. Sozzi, and . Spano
P2.21 THE SEASONALITY OF VOLATILE ORGANIC COMPOUND EMISSIONS FROM THE CANOPY OF THE MOST IMPORTANT FRUIT TREE SPECIES. Rita Baraldi, CNR, Bologna, Italy; and F. Rapparini and F. Rossi
P2.22 EMISSION OF BIOGENIC HYDROCARBONS IN RELATION TO PHYSIOLOGICAL ACTIVITIES AND CARBON BUDGET. Shelley N. Pressley, Washington State Univ., Pullman, WA; and B. Lamb, C. Claiborn, H. Westberg, E. Allwine, and P. Harley
P2.23 RADIATION REGIME OF THREE AMAZONIAN ECOSYSTEM. Mario M. Leitao, Department of Atmospheric Science/UFPB, Campina Grande, Paraiba, Brasil; and J. M. Santos, A. R. Pereira, and N. A. Villa Nova
P2.24 MICROMETEOROLOGICAL MEASUREMENT OF METHANE EMISSION FROM A JAPANESE RICE PADDY. Akira Miyata, National Inst. of Agro-Environmental Sciences, Tsukuba, Ibaraki, Japan; and Y. Harazono
P2.25 ON THE ROUGHNESS LENGTH FOR HEAT OF A DENSE DOUGLAS-FIR FOREST. Fred C. Bosveld, Royal Netherlands Meteorological Inst., De Bilt, The Netherlands; and B. Holtslag and B. van den Hurk
P2.26 NIGHT TIME CONVECTION IN THE INTERIOR OF A DENSE DOUGLAS-FIR FOREST. Fred C. Bosveld, Royal Netherlands Meteorological Inst., De Bilt, The Netherlands; and B. Holtslag and B. van den Hurk
P2.27 FEEDBACK AND INTERACTIVE MECHANISMS FOR SURFACE EVAPOTRANSPIRATION ANALYSIS. Devdutta S. Niyogi, North Carolina State Univ., Raleigh, NC; and S. Raman
11:30 AM SESSION 9: AIR QUALITY, POLLUTANT DEPOSITION AND MODELING (Parallel with Poster Session P2)
Chairpersons: Bertrand D. Tanner, Campbell Scientific, Inc., Logan, UT
11:30 AM 9.1 DEVELOPMENT OF A 1-KM RESOLVED VEGETATION COVER DATA BASE FOR REGIONAL AIR QUALITY MODELING. Thomas E. Pierce, NOAA/Air Resources Lab. (ARL), Research Triangle Park, NC; and E. J. Kinnee and C. D. Geron
11:50 AM 9.2 WEATHER PATTERNS ASSOCIATED WITH HIGH OZONE CONCENTRATIONS IN THE GREAT LAKES REGION. Jerome D. Fast, Pacific Northwest National Lab., Richland, WA; and W. E. Heilman and X. Bian
12:10 PM CONFERENCE LUNCHEON: SPEAKER: PROFESSOR PAL ARYA, NORTH CAROLINA STATE UNIV., RALEIGH, NC; TITLE: URBAN AND FOREST ENVIRONMENTS: MICROMETEOROLOGISTS' NIGHTMARE
2:10 PM 9.3 OZONE DEPOSITION TO A SENESCENT CEREAL FIELD- EFFECT OF STOMATAL CONDUCTANCE AND SURFACE WETNESS WITHDRAWN. Christof Ammann, Max Planck Institute for Chemistry, Mainz, Rheinland-Pfalz, Germany; and F. X. Meixner and J. Busch
2:30 PM 9.4 THE OKLAHOMA DISPERSION MODEL- A WEB-BASED MANAGEMENT TOOL FOR AGRICULTURAL PRACTICES ASSOCIATED WITH NEAR-SURFACE RELEASES OF GASES AND PARTICULATES. J. D. Carlson, Oklahoma State Univ., Stillwater, OK; and D. S. Arndt
2:50 PM 9.5 NITROGEN DRY DEPOSITION AT AN AMERIFLUX SITE. Sara C. Pryor, Indiana Univ., Bloomington, IN; and R. J. Barthelmie, B. Jensen, and B. Offerle
3:10 PM 9.6 DRY DEPOSITION OF SO2 AND O3 TO A DECIDUOUS FOREST DURING THE 1997 GROWING SEASON. Peter L. Finkelstein, NOAA/ARL, Research Triangle Park, NC; and T. G. Ellestad, D. B. Schwede, E. O. Hebert, and . Clarke
3:30 PM COFFEE BREAK
3:40 PM SESSION 10: VEGETATION AND CLIMATE (Parallel with Session 11)
Chairpersons: Nolan Doesken, Colorado State Univ., Ft. Collins, CO
3:40 PM 10.1 DEW DEPOSITION AND EARLY MORNING EVAPORATION IN A DESERT ENVIRONMENT. Adrie F. Jacobs, Agricultural Univ., Wageningen, The Netherlands; and B. G. Heusinkveld and S. Berkowicz
4:00 PM 10.2 LONG WAVE RADIATION REGIME IN VEGETATION WITH APPLICATION TO CLIMATE RESEARCH. Eyal Rotenberg, Environmental and Water Resources Engineering, Technion City, Haifa, Israel; and Y. Mamane and J. H. Joseph
4:20 PM 10.3 SHORT-TERM PRECIPITATION VARIABILITY PATTERNS IN THE NORTH CENTRAL AND NORTHEASTERN U.S. AND THEIR RELATION TO FOREST ECOSYSTEMS. Warren E. Heilman, USDA Forest Service, East Lansing, MI
4:40 PM 10.4 CLIMATIC CONSEQUENCES OF LEAF EMERGENCE IN THE EASTERN U.S. David R. Fitzjarrald, Univ. at Albany/SUNY, Albany, NY; and O. A. Acevedo and K. E. Moore
5:00 PM 10.5 SEASONAL AND INTERANNUAL CLIMATE CONTROLS ON FOREST AND WILDLAND FIRE IN THE SOUTHWEST. Andrew C. Comrie, Univ. of Arizona, Tucson, AZ; and D. K. Adams, J. D. All, J. E. Diem, A. E. Hessl, K. F. Kipfmueller, and M. W. Salzer
5:20 PM 10.6 A MATHEMATICAL MODEL TO EVALUATE THE SOLAR ENERGY POTENTIAL AT PIRACICABA, SP, BRAZIL. A. B. Pereira, Univ. Estadual de Ponta Grossa, Ponta Grossa, PR, Brazil; and N. A. Villa Nova, J. F. Escobedo, and A. R. Pereira
3:40 PM SESSION 11: MEASUREMENT AND ANALYSIS OF TURBULENCE AND SURFACE-AIR EXCHANGE (Parallel with Session 10)
Chairpersons: Lawrence E. Hipps, Utah State Univ., Logan, UT
3:40 PM 11.1 THE ESTIMATION OF ENERGY AND MASS FLUXES FROM VEGETATED SURFACES. Kyaw Tha Paw U, Univ. of California, Davis, CA and NOAA/ATDD, Oak Ridge, TN; and D. D. Baldocchi, T. P. Meyers, and K. B. Wilson
4:00 PM 11.2 MULTIFRACTAL ANALYSIS OF SCALAR CONCENTRATION FLUCTUATIONS IN SURFACE LAYER FLOWS. Dennis D. Finn, Washington State Univ., Pullman, WA; and B. Lamb and M. Y. Leclerc
4:20 PM 11.3 LIDAR MEASUREMENTS OF PESTICIDE SPRAY DRIFT IN DIFFERENT ATMOSPHERIC STABILITIES. David R. Miller, Univ. of Connecticut, Storrs, CT; and T. E. Stoughton, K. Thorpe, J. Podgwaite, R. Reardon, and M. McManus
4:40 PM 11.4 MEASURING METHANE AND NITROUS OXIDE EMISSIONS DURING GRAZING. O. T. Denmead, CSIRO Land and Water, Canberra, ACT, Australia; and R. Leuning, L. A. Harper, I. M. Jamie, C. H. Hsu, and S. K. Baker
5:00 PM 11.5 ESTIMATING SURFACE ENERGY FLUX ON CONTINENTAL SCALES USING AN ATMOSPHERIC LAND-EXCHANGE MODEL AND REMOTELY SENSED DATA. John R. Mecikalski, Univ. of Wisconsin, Madison, WI; and G. R. Diak, M. C. Anderson, and J. M. Norman

THU 5 NOV __________________________
8:20 AM SESSION 12: FOOTPRINT THEORIES AND MICROCLIMATE OF HETEROGENEOUS SURFACES
Chairpersons: Monique Y. Leclerc, Univ. of Georgia, Griffin, GA; and Peter Schuepp, McGill Univ. Ste-Anne-de-Bellevue, PQ, Canada
8:20 AM 12.1 TRACER MEASUREMENTS AND MODELING OF FLUX FOOTPRINT ABOVE A ROUGH CANOPY. Nicholas Meskhidze, Univ. of Georgia, Griffin, GA; and M. Y. Leclerc
8:40 AM 12.2 LARGE-EDDY SIMULATION OF TRACER FOOTPRINTS FROM INFINITE CROSSWIND LINE SOURCES INSIDE A FOREST CANOPY. Hong-Bing Su, Univ. of Georgia, Griffin, GA; and M. Y. Leclerc
9:00 AM 12.3 A THREE-DIMENSIONAL FOOTPRINT MODEL FOR INHOMOGENEOUS FOREST CANOPIES. Hans Peter Schmid, Indiana Univ., Bloomington, IN; and M. W. Rotach
9:20 AM 12.4 DIFFICULTIES IN THE DETERMINATION OF SURFACE ENERGY BALANCE OF ARID LANDSCAPES. Lawrence E. Hipps, Utah State Univ., Logan, UT; and K. Ramalingam, W. P. Kustas, and J. H. Prueger
9:40 AM 12.5 MEASUREMENTS IN COMPLEX TERRAIN- RESULTS OF THE SLIMM EXPERIMENT. Joost P.L. Vermeulen, Vrije Univ., Amsterdam, The Netherlands; and N. J. Bink, H. F. Vugts, and A. G. C. A. Meesters
10:00 AM COFFEE BREAK
10:30 AM 12.6 ADVECTION OF SENSIBLE AND LATENT HEAT NEAR A FOREST EDGE. Peter B. van Breugel, Univ. of Groningen, Groningen, The Netherlands; and W. Klaassen and E. J. Moors
10:50 AM 12.7 WITHDRAWN.
11:10 AM 12.8 USING A WIND FLOW MODEL TO IDENTIFY HARVEST DESIGNS THAT REDUCE WINDTHROW. Tom K. Flesch, Univ. of Alberta, Edmonton, AB, Canada; and J. D. Wilson, D. A. MacIssac, and S. J. Lux
11:30 AM 12.9 THE IMPLEMENTATION AND VALIDATION OF A TILE SURFACE EXCHANGE SCHEME WITHIN A SITE-SPECIFIC MODEL OVER PARTLY FORESTED AREAS. William P. Hopwood, UK Met Office, Bracknell, Berks., UK
11:50 PM 12.10 THE COUPLING OF A SOURCE AREA MODEL TO A SITE-SPECIFIC MODEL FOR DIAGNOSIS OF LAND SURFACE CHARACTERISTICS WITHIN PARTLY FORESTED AREAS. William P. Hopwood, UK Met Office, Bracknell, Berks., UK
12:10 PM LUNCH BREAK
1:30 PM 12.11 ESTIMATING CO2 FLUXES FOR A WIDE RANGE OF COVER TYPES. J. M. Chen, Canada Center for Remote Sensing, Ottawa, ON, Canada; and R. L. Desjardins, S. G. Leblanc, J. Cihlar, . MacPherson, P. H. Schuepp, and E. Pattey
1:50 PM 12.12 LINKING PATCHY LANDSCAPES TO OBSERVED FLUX PATTERNS—A NEURAL NETWORK APPROACH. Behzad Abareshi, McGill Univ., Ste-Anne-de-Bellevue, PQ, Canada; and P. H. Schuepp
2:10 PM 12.13 HIGH RESOLUTION METEOROLOGICAL TRANSPORT AND DIFFUSION SIMULATIONS IN A COMPLEX RIVER VALLEY. Ronald M. Cionco, US Army Research Lab., Adelphi, MD; and H. Weber and W. aufm Kampe
2:30 PM SESSION 13: TURBULENCE AND ATMOSPHERIC EXCHANGE UNDER STABLE STRATIFICATION
Chairpersons: Dennis D. Baldocchi, NOAA/ATDD, Oak Ridge, TN
2:30 PM 13.1 ON OBSERVATIONS OF NET ECOSYSTEM EXCHANGE BETWEEN FOREST VEGETATION AND THE ATMOSPHERE. Xuhui Lee, Yale Univ., New Haven, CT
2:50 PM 13.2 VERTICAL MIXING IN THE SUBCANOPY. Larry Mahrt, Oregon State Univ., Corvallis, OR; and X. Lee, T. A. Black, R. M. Staebler, and H. H. Neumann
3:40 PM 13.3 LIDAR MEASUREMENTS OF NOCTURNAL BOUNDARY LAYER STRUCTURES ABOVE A FOREST. Thomas E. Stoughton, Univ. of Connecticut, Storrs, CT; and D. R. Miller, X. Lee, and X. Yang
4:00 PM 13.4 KELVIN-HELMHOLTZ BILLOWS OVER FOREST CANOPY. Xinzhang Hu, Yale School of Forestry and Environmental Studies, New Haven, CT; and X. Lee
4:20 PM 13.5 BELOW-CANOPY AND NOCTURNAL CO2 FLUXES IN A PONDEROSA PINE FOREST. Beverly E. Law, Oregon State Univ., Corvallis, OR; and P. M. Anthoni, D. D. Baldocchi, and M. H. Unsworth
4:40 PM 13.6 MEASURING NIGHTTIME CO2 FLUX. E. Pattey, Agriculture and Agri-Food Canada, Ottawa, ON, Canada; and R. L. Desjardins and D. W. Dow

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