Program: 26th Conference on Agricultural and Forest Meteorology (26th Agricultural and Forest Meteorology/13th Air Pollution/5th Urban Environment/16th Biometeorology and Aerobiology)

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Sunday, 22 August 2004

6:00 AM-6:00 AM: Sunday, 22 August 2004

SUN 22 AUG

5:00 PM-7:00 PM: Sunday, 22 August 2004

Conference Registration

Monday, 23 August 2004

7:30 AM-7:30 AM: Monday, 23 August 2004

Conference Registration Continues through Thurs, 26 Aug

9:00 AM-12:15 PM: Monday, 23 August 2004

Session 1

Canopy micrometeorology 1

Host: 26th Conference on Agricultural and Forest Meteorology

Organizers: Tilden P. Meyers, NOAA/ATDD; Peter D. Blanken, University of Colorado

9:00 AM

1.1

Welcoming Remarks

9:30 AM

1.2

Response of net ecosystem production of a coastal Douglas-fir forest to photosynthetically active radiation and saturation deficit

T. Cai, University of British Columbia, Vancouver, BC, Canada; and A. Black, K. Morgenstern, E. R. Humphreys, and Z. Nesic

Recorded presentation

9:45 AM

1.3

Flux partitioning in an Old-Growth rainforest and the canopy microclimate: Daily, seasonal and interannual dynamics

Matthias Falk, University of California, Davis, CA; and M. Schroeder, S. Wharton, and K. T. Paw U

Recorded presentation

Presentation PDF (117.8 kB)

10:00 AM

1.4

A humidity-free calculation of canopy conductance

Peter D. Blanken, University of Colorado, Boulder, CO

Recorded presentation

10:15 AM

1.5

The differential response of transpiration and bare-soil evaporation to precipitation in a Chihuahuan Desert shrubland

Russell L. Scott, USDA-ARS Southwest Watershed Research Center, Tucson, AZ; and W. L. Cable

Recorded presentation

10:30 AM

1.6

The role of epiphytes in the interception and evaporation of rainfall in old-growth Douglas-fir forests in the Pacific Northwest

Thomas G. Pypker, Oregon State University, Corvallis, OR; and B. J. Bond and M. Unsworth

Recorded presentation

Presentation PDF (144.1 kB)

10:45 AM

1.7

Biologically-effective UV-B exposures in understories of forest canopies: potential impacts of climate change

Richard H. Grant, Purdue University, W. Lafayette, IN; and K. Apostol and W. Gao

Recorded presentation

Presentation PDF (465.4 kB)

11:00 AM

1.8

An in situ investigation of the influence of a controlled burn on the thermophysical properties of a dry soil

Bill Massman, USDA/Forest Service, Fort Collins, CO; and J. M. Frank

Recorded presentation

Presentation PDF (2.4 MB)

11:15 AM

1.9

Sonic anemometers tested in a wind tunnel

R. Vogt, Unversity of Basel, Basel, Switzerland; and C. Feigenwinter

11:30 AM

1.3a

Coffee Break

12:00 PM-1:30 PM: Monday, 23 August 2004

Lunch Break

1:30 PM-5:00 PM: Monday, 23 August 2004

Session 2

Carbon dioxide exchange 1

Host: 26th Conference on Agricultural and Forest Meteorology

Organizers: Andrew Black, University of British Columbia; Michael Unsworth, Oregon State University

1:30 PM

2.1

In search of the ‘typical’ year of forest-atmosphere exchange

H. P. Schmid, Indiana University, Bloomington, IN; and H. B. Su, C. S. B. Grimmond, C. S. Vogel, and D. Dragoni

Recorded presentation

1:45 PM

2.2

The Annual Carbon and Water Balance of a Mid-Western No-Till Corn/Soybean Ecosystem

Tilden Meyers, NOAA/ATDD, Oak Ridge, TN; and S. Hollinger and T. B. Wilson

Recorded presentation

2:00 PM

2.3

Carbon and water fluxes over a temperate Eucalyptus forest and a tropical wet/dry savanna in Australia

Ray Leuning, CSIRO, Canberra, ACT, Australia; and H. A. Cleugh, D. E. Hughes, and S. J. Zegelin

Recorded presentation

2:15 PM

2.4

Mangrove forest-atmosphere interactions in the Florida coastal Everglades

Jordan G. Barr, University of Virginia, Charlottesville, VA; and J. D. Fuentes, T. L. O'Halloran, J. C. Zieman, and D. L. Childers

2:30 PM

2.5

Partitioning the net CO₂ flux of a deciduous forest into respiration and assimilation using stable carbon isotopes

Alexander Knohl, Max Planck Institute for Biogeochemistry, Jena, Germany; and N. Buchmann

Recorded presentation

Presentation PDF (134.5 kB)

2:45 PM

2.6

Six years of CO₂ and water vapour exchange measurement in a West Coast Douglas-fir stand

Kai Morgenstern, University of British Columbia, Vancouver, BC, Canada; and T. A. Black, E. R. Humphreys, T. Cai, Z. Li, R. Jassal, D. L. Spittlehouse, and Z. Nesic

3:00 PM

2.7

Is flux divergence in the tower layer important in estimating annual NEE using eddy-covariance measurements?

Hong-Bing Su, East Carolina University, Greenville, NC; and H. P. Schmid, C. S. B. Grimmond, C. S. Vogel, and P. S. Curtis

Recorded presentation

Presentation PDF (343.8 kB)

3:15 PM

2.8

Carbon Dioxide Transport over Complex Terrain

Jielun Sun, NCAR, Boulder, CO; and S. P. Burns, A. C. Delany, S. P. Oncley, A. Turnipseed, B. B. Stephens, A. Guenther, D. E. Anderson, and R. Monson

Recorded presentation

Presentation PDF (672.0 kB)

3:30 PM

2.9

Upscaling fluxes from tower to landscape: Overlaying flux footprints on high resolution (IKONOS) images of vegetation cover

Joon Kim, Yonsei University, Seoul, Korea, Republic of (South); and Q. Guo, D. D. Baldocchi, M. Y. Leclerc, L. Xu, and H. P. Schmid

Recorded presentation

Presentation PDF (712.8 kB)

3:45 PM

2.10

Seasonal course of a normalized differential vegetation index ‘NDVI’ derived from tower data

Matthias Falk, University of California, Berkeley, CA; and T. Meyers, A. Black, A. G. Barr, S. Yamamoto, S. B. Verma, and D. Baldocchi

Recorded presentation

Presentation PDF (177.8 kB)

4:00 PM

2.11

Long-Term Dynamics of Production, Respiration, and Light-Use Efficiency in Two Sagebrush Steppe Ecosystems of the U.S. Intermountain West in Relation to NDVI: Scaling-Up CO2 Fluxes

Tagir G. Gilmanov, South Dakota State University, Brookings, SD; and T. J. Svejcar, D. A. Johnson, R. F. Angell, N. Z. Saliendra, and B. K. Wylie

4:15 PM

2.12

Simulations of Net CO2 Flux at Takayama (Central Japan) with BEPS Ecosystem Model

Kaz Higuchi, MSC, Toronto, ON, Canada; and A. Shashkov, D. Chan, N. Saigusa, S. Murayama, S. Yamamoto, H. Kondo, J. Chen, J. Liu, and B. Chen

Recorded presentation

4:30 PM

2.6a

Coffee Break

5:00 PM-5:00 PM: Monday, 23 August 2004

Sessions end for the day

6:00 PM-6:00 PM: Monday, 23 August 2004

Opening Reception

Tuesday, 24 August 2004

8:30 AM-2:30 PM: Tuesday, 24 August 2004

Session 3

Canopy micrometeorology 2

Host: 26th Conference on Agricultural and Forest Meteorology

Organizers: Jose Fuentes, Univ. of Virginia; Roger H. Shaw, University of California; Ray Leuning, CSIRO

8:30 AM

3.1

Use of footprint modelling for the characterization of complex measurement sites

Mathias Goeckede, University of Bayreuth, Bayreuth, Germany; and T. Markkanen, C. B. Hasager, and T. Foken

Presentation PDF (565.0 kB)

8:45 AM

3.2

Estimating leaf area index using onsite measurements of radiation fluxes

Timothy B. Wilson, NOAA/ERL/ARL/ATDD, Oak Ridge, TN; and T. P. Meyers and S. E. Hollinger

Recorded presentation

9:00 AM

3.3

COHERENT MICROSCALE SURFACE STRUCTURES OBSERVED BY A SCANNING LIDAR AND THEIR CONTRIBUTION TO MASS EXCHANGE IN THE STABLE BOUNDARY LAYER

Daniel I. Cooper, LANL, Los Alamos, NM; and W. E. Eichinger, M. Y. Leclerc, J. Archuleta, and C. Y. J. Kao

Recorded presentation

Presentation PDF (1.1 MB)

3.4

Characteristics of Nocturnal Low Level Jets and their influence on the eddy covariance fluxes at the Florida slash Pine AmeriFlux site

9:30 AM

3.5

An EOF analysis of the structure of the large-eddy motion in a simulated vegetation canopy

Roger H. Shaw, University of California, Davis, CA; and J. J. Finnigan and E. G. Patton

Recorded presentation

Presentation PDF (267.5 kB)

9:45 AM

3.6

A study of the subcanopy flow kinematics in two forests

Ralf M. Staebler, MSC, Toronto, ON, Canada; and D. R. Fitzjarrald

Recorded presentation

Presentation PDF (498.6 kB)

10:00 AM

3.7

Two and three dimensional numerical airflow modelling along forest edges

Timothy J. Phaneuf, University of Northern British Columbia, Prince George, BC, Canada; and P. L. Jackson, Y. Q. Wang, and M. D. Novak

Recorded presentation

Presentation PDF (259.5 kB)

3.8

The influence of stability on the turbulent transfer of heat, moisture and momentum fluxes in the surface layer over an agricultural farmland at a tropical location

Presentation PDF (140.8 kB)

10:30 AM

3.9

Surface renewal measurements of sensible heat flux in an irrigated desert pecan orchard

Luke J. Simmons, New Mexico State University, Las Cruces, NM; and D. R. Miller and T. W. Sammis

Recorded presentation

Presentation PDF (122.4 kB)

10:45 AM

3.10

Nocturnal air drainage in forest canopies: a new way of studying physiological responses to the weather?

Michael Unsworth, Oregon State University, Corvallis, OR; and B. J. Bond, A. C. Mix, T. G. Pypker, and L. Mahrt

Recorded presentation

Presentation PDF (201.7 kB)

11:00 AM

3.11

Simple first-order turbulent transfer model to predict canopy momentum, heat, and moisture regimes

Michael D. Novak, University of British Columbia, Vancouver, BC, Canada

Recorded presentation

11:15 AM

3.12

Numerical simulation of canopy flow and CO2 flux at the West Coast Flux station

Haizhen Sun, University of British Columbia, Vancouver, BC, Canada; and T. L. Clark, R. B. Stull, and T. A. Black

Recorded presentation

Presentation PDF (2.2 MB)

11:30 AM

3.13

Large-eddy simulation of stably stratified canopy turbulence

Edward G. Patton, NCAR, Boulder, CO; and P. P. Sullivan

Recorded presentation

11:45 AM

3.14

Advanced modeling and experimental analysis of the flow field above and within the forest canopy at the Wind River Canopy Crane AmeriFlux site

Alejandro Zermeno-Gonzalez, University of Georgia, Saltillo, Coahuila, Mexico; and M. Y. Leclerc, A. Karipot, K. T. Paw U, R. D. Pyles, and M. Schroeder

Recorded presentation

12:00 PM

3.15

Flux profiles in and above an olive and a cork oak canopy

Roland Vogt, University of Basel, Basel, Switzerland; and A. Christen and A. Pitacco

12:15 PM

3.16

LES study on organized turbulence structures over plant canopies

Tsutomu Watanabe, Forestry and Forest Products Research Institute, Tsukuba, Ibaraki, Japan

Presentation PDF (2.3 MB)

12:30 PM

3.6a

Coffee Break

1:00 PM

3.12a

Lunch Break

2:30 PM-5:15 PM: Tuesday, 24 August 2004

Session 4

Carbon dioxide exchange 2

Host: 26th Conference on Agricultural and Forest Meteorology

Organizers: Ray Leuning, CSIRO; John H. Prueger, USDA/ARS

2:30 PM

4.1

Diurnal CO₂ profiles from a Zea mays L. canopy

Steven E. Hollinger, ISWS, Champaign, IL; and C. Bernacchi and T. P. Meyers

Recorded presentation

Presentation PDF (321.1 kB)

2:45 PM

4.2

Carbon dioxide exchange in maize and soybeans

Andrew E. Suyker, Univ. of Nebraska, Lincoln, NE; and S. B. Verma

Recorded presentation

Presentation PDF (7.1 kB)

3:00 PM

4.3

A test of strategies to improve NEE in corn-soybean ecosystems

John M. Baker, USDA, St. Paul, MN; and T. J. Griffis

Recorded presentation

Presentation PDF (118.0 kB)

3:15 PM

4.4

Seasonal variation in the isotope ratio of ecosystem respiration and canopy-scale discrimination of a corn-soybean ecosystem

Timothy J. Griffis, University of Minnesota, St. Paul, MN; and J. M. Baker and J. Zhang

Recorded presentation

Presentation PDF (213.0 kB)

3:30 PM

4.5

Carbon budget of grassland under two management regimes

Christof Ammann, Swiss Federal Research Station for Agroecology and Agriculture, Zurich, Switzerland; and A. Neftel, C. Flechard, J. Leifeld, and J. Fuhrer

Recorded presentation

3:45 PM

4.6

Savanna fires and their impact on net ecosystem productivity

Jason Beringer, Monash University, Melbourne, Vic., Australia; and L. B. Hutley and N. J. Tapper

Recorded presentation

Presentation PDF (400.3 kB)

4:00 PM

4.7

Evaluating autotrophic and heterotrophic respiration in an oak grass savanna using flux-gradient measurements of soil respiration with new infra-red CO2 sensors

Dennis D. Baldocchi, University of California, Berkeley, CA; and J. Tang and L. Xu

Recorded presentation

Presentation PDF (92.4 kB)

4:15 PM

4.8

New type of CO2 sensor for ecological measurements

Christer P. Helenelund, Vaisala Oyj, Helsinki, Finland

Presentation PDF (215.6 kB)

4:30 PM

4.9

Soil respiration source density profiles using steady-state inverse methods

Michael D. Novak, University of British Columbia, Vancouver, BC, Canada; and R. Jassal and A. Black

Recorded presentation

4:45 PM

4.2a

Coffee Break

5:45 PM-5:45 PM: Tuesday, 24 August 2004

Sessions end for the day

Wednesday, 25 August 2004

8:30 AM-9:45 AM: Wednesday, 25 August 2004

Session 5

Effects of weather and climate on plant growth (parallel with session 6)

Host: 26th Conference on Agricultural and Forest Meteorology

Organizer: Claudia Wagner-Riddle, University of Guelph

8:30 AM

5.1

Leaf Wetness within a Lily Canopy

Adrie F. G. Jacobs, Wageningen University, Wageningen, Netherlands; and B. G. Heusinkveld and R. Wichink Kruit

Recorded presentation

Presentation PDF (89.5 kB)

8:45 AM

5.2

Use of hyperspectral remote sensing in evaluating the rate of net photosynthesis and stressed areas of agricultural fields

Ian B. Strachan, McGill University, Ste-Anne de Bellevue, QC, Canada; and E. Pattey, J. R. Miller, and C. Salustro

Recorded presentation

Presentation PDF (110.4 kB)

9:00 AM

5.3

The use of probabilistic weather forecasts to predict crop failure

A. J. Challinor, University of Reading, Reading, Berks., United Kingdom; and J. M. Slingo, T. R. Wheeler, and F. J. Doblas-Reyes

Recorded presentation

9:15 AM

5.4

Effects of diverse microclimates and soil water contents on water-use efficiency and carbon isotope discrimination for bush bean

Mahmoud Raeini Sarjaz, Mazandaran University, Sari, Mazandaran, Iran; and V. Chalavi

Recorded presentation

Presentation PDF (191.2 kB)

9:30 AM

5.5

Atmospheric Regional Reanalysis simulations, based on RAMS model, as input for crop modeling

Massimiliano Pasqui, Institute of Biometeorology/National Research Council, Sesto Fiorentino (FI), Italy; and B. Gioli, B. Gozzini, and F. Miglietta

Recorded presentation

Presentation PDF (2.2 MB)

5.6

Artificial Neural Networks Application in order to Predicting of the Apparent Date of Wheat Phenological Stages Using Climatic Data

8:30 AM-11:30 AM: Wednesday, 25 August 2004

Session 6

Regional land/atmosphere interactions (parallel with session 5)

Host: 26th Conference on Agricultural and Forest Meteorology

Organizer: Jon Warland, University of Guelph

8:30 AM

6.1

Global solar radiation in a southern African savanna environment

Mungandi Nasitwitwi, Douglas College, New Westminster, BC, Canada; and W. G. Bailey and L. J. B. McArthur

Recorded presentation

Presentation PDF (369.0 kB)

8:45 AM

6.2

Evaluation of alternative spatial models of vapour pressure in Canada

Daniel W McKenney, Natural Resources Canada/Canadian Forest Service, Sault Ste. Marie, ON, Canada; and M. F. Hutchinson, P. Papadopol, and D. T. Price

Recorded presentation

Presentation PDF (708.5 kB)

9:00 AM

6.3

Topoclimate effects on agriclimates at the local scale

Katrina Richards, University of Otago, Dunedin, New Zealand

Recorded presentation

9:15 AM

6.4

ClearSky: development and evaluation of an automated, MM5-CALMET-CALPUFF modeling system providing web-mediated support for management of smoke from agricultural field burning

Joe Vaughan, Washington State Univeristy, Pullman, WA; and R. Jain, B. Lamb, and C. Claiborn

Recorded presentation

9:30 AM

6.5

Impact of savanna fire scars on heat and moisture fluxes to the atmosphere and feedbacks to the local boundary layer

Chris Wendt, Monash University, Melbourne, Victoria, Australia; and J. Beringer, N. Tapper, and L. B. Hutley

Recorded presentation

Presentation PDF (693.2 kB)

6.6

Using combined large-eddy simulation and remote sensing to assess land-atmosphere coupling

10:00 AM

6.7

Evaluation of fire weather indices predicted based on real-time high-resolution MM5 forecasts over central and upper Great Plains

Hee-Jin In, University of Houston, Houston, TX; and S. Zhong

Recorded presentation

6.8

Land-atmosphere coupling strength in an AGCM

10:30 AM

6.9

Investigating crop-climate interactions within a General Circulation Model (GCM)

Tom M Osborne, NCAS Centre for Global Atmospheric Modelling, Reading, Berkshire, United Kingdom; and J. M. Slingo, T. R. Wheeler, and A. J. Challinor

Recorded presentation

10:45 AM

6.6a

Coffee Break

10:30 AM-3:30 PM: Wednesday, 25 August 2004

Session 7

Impacts and Implications of Climate/Weather Variability and Change (Joint Sessions / parallel with session 8)

Host: 26th Conference on Agricultural and Forest Meteorology

Organizers: N. J. Rosenberg, Joint Global Change Research Institute; Philip W. Mote, University of Washington

10:30 AM

7.1

Analysis of Satellite observed outgoing long-wave radiation and its relationshp with Indian monsoon in Floods and Drought Years over India :A Case Study

Chandra Vir Singh, AER, New Delhi, India

10:45 AM

7.2

Windstorms and risk analysis related to forest damage in the Swiss Alps using GIS techniques

Paula Casals, University of Fribourg, Fribourg, Switzerland; and M. Beniston and S. Goyette

Recorded presentation

Presentation PDF (22.8 kB)

11:00 AM

7.3

Impact of extreme temperature and/or ultraviolet radiation on grape cultivation

Franklin P. Mills, Australian National University, Canberra, ACT, Australia; and L. Lemus-Deschamps and S. R. Wilson

Presentation PDF (252.8 kB)

11:15 AM

7.4

Spatial and temporal variability of soil moisture and temperature in response to fire in a montane ponderosa pine forest

Taryn M Oakley, University of Colorado, Boulder, CO; and P. D. Blanken

Recorded presentation

Presentation PDF (124.4 kB)

11:30 AM

7.5

Impact of climate variability and land cover dynamics on natural resources, management and conservation in West Africa (GLOWA Volta / BIOTA West Africa research network)

Joerg Szarzynski, Center for Development Research, Bonn, Germany; and P. L. G. Vlek, T. B. Yao, M. O. Roedel, and D. Anhuf

Recorded presentation

7.6

Phenological models for evaluating the effects of climatic trends on apple cv. “Golden Delicious” flowering dates

12:00 PM

7.7

High resolution future scenario climate data for North America

David T Price, Natural Resources Canada/Canadian Forest Service, Edmonton, Alberta, Canada; and D. W. McKenney, P. Papadopol, T. Logan, and M. F. Hutchinson

Recorded presentation

Presentation PDF (668.8 kB)

12:15 PM

7.8

Integrated assessment of GCM-derived climate change on grain production, water supply and unmanaged ecosystems in the conterminous USA

N. J. Rosenberg, Joint Global Change Research Institute, College Park, MD; and A. Thomson, R. C. Izaurralde, and S. J. Smith

Recorded presentation

12:30 PM

7.9

Modelling the impacts of climate variability and change on tropical crop yields

A. J. Challinor, The University of Reading, Reading, Berks., United Kingdom; and T. R. Wheeler, J. M. Slingo, P. Q. Craufurd, and D. I. F. Grimes

Recorded presentation

12:45 PM

7.10

Effect of future climatic variability on agriculture in a Mediterranean region

Pierpaolo Duce, CNR-Institute of Biometeorology, Sassari, Sardinia, Italy; and A. Arca, S. Canu, D. Spano, and A. Motroni

Recorded presentation

Presentation PDF (1.3 MB)

1:00 PM

7.11

The Effect of Future Anthropogenic Emissions on Ozone Concentrations in the Great Lakes Region

Jerome D. Fast, PNNL, Richland, WA; and W. E. Heilman

Presentation PDF (739.3 kB)

1:15 PM

7.12

Climate variability and wild fire in the western U.S., with disturbing implications for a warmer future

Philip W. Mote, University of Washington, Seattle, WA; and Z. Gedalof

Recorded presentation

1:30 PM

7.7a

Lunch Break

3:00 PM

7.12a

Coffee Break

1:30 PM-3:45 PM: Wednesday, 25 August 2004

Session 8

Turbulence and dispersion in canopies (parallel with session 7)

Host: 26th Conference on Agricultural and Forest Meteorology

Organizer: Kyaw Tha Paw U, University of California, Davis

1:30 PM

8.1

Relative Effects of Terrain and Morphology Complexities upon very local Airflow and Diffusion

Ronald M. Cionco, US Army Research Laboratory, White Sands Missile Range, NM

Recorded presentation

Presentation PDF (682.3 kB)

1:45 PM

8.2

Quantifying aerial dispersal of pollen in relation to outcrossing in maize

Donald E. Aylor, Connecticut Agricultural Experiment Station, New Haven, CT; and M. T. Boehm and E. J. Shields

Presentation PDF (117.4 kB)

2:00 PM

8.3

Plume fluctuations in surface layer canopies

Valerio Bisignanesi, Monash University, Clayton, Vic., Australia; and M. S. Borgas

Recorded presentation

2:15 PM

8.4

Numerical simulation of turbulent flow in a forested park damaged by a windstorm

Sylvain Dupont, INRA, Villenave d'Ornon, France; and Y. Brunet and S. Dayau

Recorded presentation

Presentation PDF (245.9 kB)

2:30 PM

8.5

Evidence of nighttime wave-turbulence interactions above a hardwood forest canopy

April L. Hiscox, University of South Carolina, Columbia, SC; and C. J. Nappo and D. R. Miller

Recorded presentation

Presentation PDF (1.7 MB)

2:45 PM

8.6

Direct measurement of dispersive fluxes within a cork oak plantation

Andreas Christen, University of Basel, Basel, Switzerland; and R. Vogt

Recorded presentation

Presentation PDF (822.3 kB)

3:00 PM

8.7

An Experimental Study of Scalar Turbulence and Advective Exchange

Matt Schroeder, University of California, Davis, CA; and M. Falk and K. T. Paw U

Recorded presentation

3:15 PM

8.7a

Coffee Break

3:30 PM-4:45 PM: Wednesday, 25 August 2004

Session 9

Evaporation and the energy balance 1

Host: 26th Conference on Agricultural and Forest Meteorology

Organizer: Helen A. Cleugh, CSIRO

3:30 PM

9.1

Temporal variability of the controls on evapotranspiration from grazed pastureland during extreme drought

Joseph G. Alfieri, University of Colorado, Boulder, CO; and P. D. Blanken and D. N. Yates

Presentation PDF (473.1 kB)

3:45 PM

9.2

Spatial and temporal variation of water, energy and carbon fluxes from tower and aircraft measurements

John H. Prueger, USDA/ARS, Ames, IA; and J. L. Hatfield, W. P. Kustas, L. E. Hipps, F. Li, I. MacPherson, M. C. Anderson, T. B. Parkin, W. E. Eichinger, and D. I. Cooper

Recorded presentation

Presentation PDF (137.1 kB)

4:00 PM

9.3

Micrometeorological Measurement of Riparian Vegetation Evapotranspiration

John Kochendorfer, University of California, Davis, CA; and K. T. Paw U

Recorded presentation

Presentation PDF (122.2 kB)

9.4

Energy partitioning at an ombrotrophic bog

4:30 PM

9.5

Determination of scalar fluxes over Mediterranean vegetation

Donatella Spano, University of Sassari, Sassari, Italy; and P. Duce, R. L. Snyder, K. T. Paw U, P. Zara, and A. Ventura

Recorded presentation

Presentation PDF (322.8 kB)

4:45 PM

9.6

Land surface evaporation and surface conductance from MODIS and flux towers

Helen A. Cleugh, CSIRO, Canberra, ACT, Australia; and R. Leuning and S. W. Running

5:00 PM-5:00 PM: Wednesday, 25 August 2004

Oral Sessions End for the Day

5:30 PM-5:30 PM: Wednesday, 25 August 2004

Formal Poster Viewing

5:30 PM-8:30 PM: Wednesday, 25 August 2004

Poster Session 1

Posters for the 26th Conference on Agricultural and Forest Meteorology

Host: 26th Conference on Agricultural and Forest Meteorology

P1.1

Use of Precipitation Duration Data from Weather Radar in Leaf Wetness Estimates for Plant Disease Management

Tracy L. Rowlandson, University of Guelph, Guelph, ON, Canada; and T. J. Gillespie and R. P. Ford

P1.2

Turbulent exchange processes in and above tall vegetation

Thomas Foken, University of Bayreuth, Bayreuth, Germany; and C. Thomas, J. Ruppert, J. Lueers, and M. Goeckede

Handout (340.0 kB)

P1.3

Photosynthetically active radiation in Zambia

D. A. Finch, Queen's University, Kingston, ON, Canada; and W. G. Bailey, L. J. B. McArthur, and M. Nasitwitwi

Handout (189.1 kB)

P1.4

Operational exposure of leaf wetness sensors

P. C. Sentelhas, Universidade de Sao Paulo, Piracicaba, Sao Paulo, Brazil; and T. J. Gillespie, M. L. Gleason, J. E. B. A. Monteiro, and S. T. Helland

P1.5

Measurement and estimation of total radiation absorbed by a hedgerow in a coffee crop

L. R. Angelocci, Universidade de São Paulo, Piracicaba, Sao Paulo, Brazil; and F. R. Marin, E. Z. Righi, F. G. Pilau, and P. C. Sentelhas

P1.6

Leaf wetness simulation model and its impact on grapevine downy mildew (Plasmopara viticola) forecasting in Tuscany (Italy)

Anna Dalla Marta, University of Florence, Florence, Italy; and S. Orlandini and R. D. Magarey

P1.7

Atmospheric tracer measurements and Lagrangian modeling of CO2 advective fluxes in nighttime drainage flows

Tara Strand, Washington State University, Pullman, WA; and B. Lamb, G. Allwine, A. Turnipseed, and R. Monson

P1.8

An Evaluation of some Meteororological and Topographical Parameters Factors Influencing Levels of Airborne Lead in Soils Near a Point Source Using Using Artificial Neural Networks (ANNs)

P1.9

Albedo of wheat during a growing season: Diurnal symmetry and asymmetry

R. H. Dexter, Simon Fraser University, Burnaby, BC, Canada; and W. G. Bailey and B. McArthur

Handout (160.3 kB)

P1.10

A Comparison of Soil Moisture Measurements using Different Commercial Sensors

Mark Heuer, NOAA/ERL/ARL/ATDD, Oak Ridge, TN; and T. Meyers

P1.11

Using continuous stable isotope measurements to partition net ecosystem CO₂ exchange into photosynthesis and respiration of a corn-soybean rotation ecosystem

Jianmin Zhang, University of Minnesota, St. Paul, MN; and T. J. Griffis and J. M. Baker

Handout (223.7 kB)

P1.12

The Temporal Fluctuations in Soil Respiration when Precipitation is intercepted above the Forest Floor

Koji Tamai, Forestry & Forest Products Research Institute, Tsukuba, Ibaraki, Japan

Handout (138.1 kB)

P1.13

Short-term changes in below-ground carbon dioxide concentrations

G. B. Drewitt, University of Guelph, Guelph, ON, Canada; and J. S. Warland

Handout (182.3 kB)

P1.14

Seasonal change of H2O and CO2 flux linked with withering progress

Satoshi Inoue, National Institute for Agro-Environmental Sciences, Tsukuba, Japan; and S. Kawashima, M. Du, and S. YONEMURA

P1.15

Pressure pumping effects on soil efflux measurements of CO₂

Alan Joseph Ideris, University of California, Davis, CA; and K. T. Paw U

Handout (95.6 kB)

P1.16

Net ecosystem productivity following fire in the Canadian boreal forest

Alberto L. Orchansky, Edmonton, AB, Canada; and B. D. Amiro

Handout (181.1 kB)

P1.17

Carbon exchange of a recently harvested boreal Jack Pine stand

Joseph Kidston, University of British Columbia, Vancouver, BC, Canada; and T. A. Black, Z. Nesic, K. Morgenstern, A. G. Barr, and J. H. McCaughey

P1.18

An intercomparison eddy correlation system for the Fluxnet-Canada Research Network

Kai Morgenstern, University of British Columbia, Vancouver, BC, Canada; and Z. Nesic and T. A. Black

P1.19

A tall-tower study of CO2, water vapor, and energy exchange from developed land use in the U.S. Upper Midwest

Joe McFadden, University of Minnesota, Saint Paul, MN

P1.20

Contrasting the interannual variability in net ecosystem exchange of carbon dioxide in a northern peatland with the variability observed in northern forests

E. R. Humphreys, Trent University, Peterborough, ON, Canada; and P. M. Lafleur, S. W. Admiral, and N. T. Roulet

Handout (122.9 kB)

P1.21

Use of the nocturnal boundary layer budget method in estimating farm-scale greenhouse gas emissions

Laura A. Wittebol, McGill University, Ste-Anne-de-Bellevue, QC, Canada; and I. B. Strachan and E. Pattey

Handout (332.1 kB)

P1.22

An Examination of Measured CH4 and N2O Emissions from Swine Manure Compared with Estimated Emissions Using Default IPCC Factors

Michèle Marinier, University of Guelph, Guelph, ON, Canada; and K. H. Park, A. G. Thompson, and C. Wagner-Riddle

P1.23

Application of open-path TDL analysers for determination of methane and ammonia emissions from livestock facilities

Trevor Coates, Agriculture and Agri-Food Canada, Lethbridge, AB, Canada; and S. McGinn and J. Bauer

Handout (302.3 kB)

P1.24

Numerical estimations of the horizontal advection of scalars inside canopies

Young-San Park, University of California, Davis, CA; and K. T. Paw U

P1.25

Denoising atmospheric turbulence signal with wavelet-packet transform

Hu Fei, Chinese Academy of Sciences, Beijing, China; and Y. Jing

P1.26

Scintillometer measurements inside two tree canopies

Roland Vogt, University of Basel, Basel, Switzerland; and A. Christen and A. Pitacco

P1.27

A numerical study of near-field dispersion within and above forest canopies

Steven L. Edburg, Washington State University, Pullman, WA; and D. E. Stock, B. K. Lamb, and H. W. Thistle

Handout (306.9 kB)

P1.28

Simulation of energy and water budgets in aspen, black spruce and jack pine forests during winter using the Canadian Land Surface Scheme

Paul A. Bartlett, MSC, Toronto, ON, Canada; and M. D. MacKay and D. L. Verseghy

Handout (2.0 MB)

P1.29

On the spatial scaling of a complex adaptive system

Theresa A. Krebs, University of California, Berkeley, CA; and D. Baldocchi

Handout (145.5 kB)

P1.30

On the quality assurance of surface energy flux measurements

Matthias Mauder, Agriculture and Agri-Food Canada, Ottawa, ON, Canada; and C. Liebethal, M. Goeckede, and T. Foken

Handout (2.2 MB)

P1.31

Evaluation of footprint models using surface fluxes over clearly defined heterogeneity

Tiina Markkanen, University of Helsinki, Helsinki, Finland; and M. Göckede, Ü. Rannik, T. Foken, and T. Vesala

P1.32

Estimating the turbulent eddy difussion and aerodynamic resistance for heat under unstable conditions using air temperature measurements as input

F. Castellví, University of Lleida, Lleida, Spain; and R. L. Snyder, D. D. Baldocchi, and K. T. Paw U

P1.33

Estimating spatial and temporal variation of evapotranspiration in South Korea

Jin I. Yun, Kyung Hee University, Suwon, Gyeonggi, Korea, Republic of (South); and J. C. Nam, S. Y. Hong, J. Kim, and K. S. Kim

Handout (913.5 kB)

P1.34

Validation of GOES-based insolation estimates using pyranometer insolation data from the United States Climate Reference Network

Jason A. Otkin, SSEC/CIMSS, Madison, WI; and M. C. Anderson and J. R. Mecikalski

Handout (491.5 kB)

P1.35

Site-specific frost warning in mountainous regions by estimating geographic potential for cold-air accumulation

Uran Chung, Kyung Hee University, Suwon, Gyeonggi, Korea, Republic of (South); and J. I. Yun

Handout (231.1 kB)

P1.36

Response of plant growth to surface water balance during a summer dry period in Central Eurasian steppe

Yoshihiro Iijima, Hydrological Cycle Observational Research Program, Yokohama, Kanagawa, Japan; and T. Kawaragi, T. Ito, K. Akshalov, A. Tsunekawa, and M. Shinoda

Handout (190.7 kB)

P1.37

Assessment of Available Water Capacity for Estimating the Evapotranspiration of Agricultural Areas in Austria

Hartwig Dobesch, Central Institute for Meteorology and Geodynamics, Vienna, Austria; and S. Zach and E. Murer

P1.38

The impact of extreme temperatures on crop yield: observations and modelling

A. J. Challinor, University of Reading, Reading, Berks., United Kingdom; and T. R. Wheeler, J. M. Slingo, and P. Q. Craufurd

P1.39

Biogenic emissions in the face of climate change

Shelley Pressley, Washington State University, Pullman, WA; and B. K. Lamb, H. Westberg, J. Chen, A. Guenther, and C. Wiedinmyer

P1.40

Mediterranean shrublands growth responses to warming and drought conditions

Grazia Pellizzaro, CNR-IBIMET, National Research Council, Sassari, Italy; and C. Cesaraccio, C. Sirca, and G. De Dato

Handout (26.4 kB)

P1.41

Italian agricultural production and the heat wave during the summer 2003

Luigi Perini Sr., Ministry of Agriculture, Rome, Italy; and M. C. Beltrano

Handout (729.1 kB)

P1.42

Impacts of precipitation and crop–tillage decisions on soil moisture regimes during the 2002 drought on the southern Canadian Prairies

W. G. Bailey, Simon Fraser University, Burnaby, BC, Canada; and L. J. B. McArthur and R. H. Dexter

Handout (331.6 kB)

P1.43

The climate and the long-term water balance of Fluxnet Canada’s coastal Douglas-fir forest

David L. Spittlehouse, British Columbia Ministry of Forests, Victoria, BC, Canada

Handout (128.1 kB)

Thursday, 26 August 2004

8:30 AM-11:45 AM: Thursday, 26 August 2004

Session 10

Trace gases exchange (parallel with session 11)

Host: 26th Conference on Agricultural and Forest Meteorology

Organizers: Sean McGinn, Agriculture and Agri-Food Canada; Monique Y. Leclerc, University of Georgia

8:30 AM

10.1

Comparison between four Methods to estimate Leaf Wetness Duration caused by Dew on Grassland

Roy J. Wichink Kruit, Wageningen University and Research Centre, Wageningen, Netherlands; and W. A. J. Van Pul, A. F. G. Jacobs, and B. G. Heusinkveld

Recorded presentation

Presentation PDF (190.3 kB)

8:45 AM

10.2

Validation of the nocturnal boundary layer technique

Nathalie Mathieu, McGill University, Montreal, QC, Canada; and I. B. Strachan and M. Y. Leclerc

Recorded presentation

Presentation PDF (112.6 kB)

9:00 AM

10.3

The mean flux component associated with eddy covariance measurements

Jon S. Warland, University of Guelph, Guelph, ON, Canada; and G. W. Thurtell

10.4

Evaluation of the Tunable Diode Laser Trace Gas Analyzer System for Eddy Correlation Measurements of Methane

9:30 AM

10.5

A Micrometeorological Mass Balance Approach for Greenhouse Gas Flux Measurements from Stored Animal Manure

Claudia Wagner-Riddle, University of Guelph, Guelph, ON, Canada; and K. H. Park and G. W. Thurtell

Recorded presentation

9:45 AM

10.6

Measurement of methane emissions from cattle using chambers and micrometeorological techniques

Sean M. McGinn, Agriculture and Agri-Food Canada, Lethbridge, AB, Canada; and K. A. Beauchemin and T. Coates

Recorded presentation

Presentation PDF (138.7 kB)

10:00 AM

10.7

Spring and summer measurements of N₂O flux from an agricultural field

Lynda G. Blackburn, McGill University, Ste-Anne de Bellevue, QC, Canada; and E. Pattey, I. B. Strachan, and C. Forget

Recorded presentation

Presentation PDF (154.6 kB)

10:15 AM

10.8

Long-term results of management practices aimed at reducing nitrous oxide emissions from agricultural fields

Ivan Lee, University of Guelph, Guelph, ON, Canada; and A. Furon, J. Warland, and C. Wagner-Riddle

Recorded presentation

10:30 AM

10.9

Airborne Measurement of Mass and Energy Exchange from Agricultural Lands

Ramesh Srinivasan, National Research Council Canada, Ottawa, ON, Canada; and I. MacPherson, R. L. Desjardins, and E. Pattey

Presentation PDF (637.3 kB)

10:45 AM

10.10

Emissions of sulfur gases from acid sulfate soils

O.T. Denmead, CSIRO, Canberra, ACT, Australia; and B. C. T. Macdonald, A. Kinsela, I. White, and M. D. Melville

Recorded presentation

11:00 AM

10.11

Mercury Fluxes above a Deciduous Forest Measured with a Relaxed Eddy Accumulation System

David R. Miller, University of Connecticut, Storrs, CT; and J. O. Bash

11:15 AM

10.12

In-situ measurement of water vapor isotopes for atmospheric and ecological applications

Xuhui Lee, Yale University, New Haven, CT; and S. D. Sargent, R. Smith, and B. D. Tanner

Presentation PDF (471.2 kB)

11:30 AM

10.6a

Coffee Break

9:00 AM-11:30 AM: Thursday, 26 August 2004

Session 11

Evaporation and the energy balance 2 (parallel with session 10)

Host: 26th Conference on Agricultural and Forest Meteorology

Organizers: William J. Massman, US Forest Service; Terry J. Gillespie, University of Guelph

9:00 AM

11.1

Evaluation of a Penman-Monteith approach to provide a “standard” leaf wetness duration estimate

Terry J. Gillespie, University of Guelph, Guelph, ON; and P. C. Sentelhas, M. L. Gleason, J. E. B. A. Monteiro, J. R. M. Pezzopane, and M. J. Pedro Jr.

Recorded presentation

9:15 AM

11.2

Simulation of land surface albedo—a case study

Shusen Wang, Canada Centre for Remote Sensing, Ottawa, ON, Canada

Recorded presentation

11.3

Remote sensing of two-stage evaporation from soil surfaces

9:45 AM

11.4

An analogic model of water extraction by grass roots

Clovis Angeli Sansigolo, INPE, Sao Paulo, Brazil; and E. S. B. Ferraz

Presentation PDF (131.1 kB)

10:00 AM

11.5

A project summary: Water and energy budget assessment for a non-tidal wetland in the Sacramento-San Joaquin Delta

Frank E. Anderson, California Department of Water Resources, Sacramento, CA; and R. L. Snyder, K. T. Paw U, and J. Z. Drexler

Recorded presentation

Presentation PDF (122.0 kB)

10:15 AM

11.6

Energy and water vapour fluxes over a heterogeneous land surface: The EVA-GRIPS project

Heinz-Theo Mengelkamp, GKSS Research Center, Geesthacht, Germany

Recorded presentation

Presentation PDF (2.5 MB)

10:29 AM

11.7

Paper 11.7 moved, new paper number 11.3a

10:30 AM

11.8

Multi-objective calibration of the land surface model SEWAB

Sven Huneke, GKSS Research Centre, Geesthacht, Germany; and J. Geyer, K. P. Johnsen, H. Lohse, and H. T. Mengelkamp

Recorded presentation

Presentation PDF (399.6 kB)

11.9

Soil-vegetation-atmosphere relationship: A model for estimating evapotranspiration of different land covers in the Ivory Coast (West Africa)

11:00 AM

11.10

A 3D model of mass and energy transfers in vegetated canopy

Alice Belot, Centre D'études Spatiales de la Biosphère, Toulouse, France; and J. P. Gastellu-Etchegorry and A. Perrier

Presentation PDF (537.3 kB)

11:15 AM

11.3a

Micrometeorogical measurements to assess fire fuel dryness (formally paper 11.7)

Donatella Spano, University of Sassari, Sassari, Italy; and P. Duce, R. L. Snyder, K. T. Paw U, D. Baldocchi, and L. Xu

Recorded presentation

Presentation PDF (1.2 MB)

11:30 AM

11.4a

Coffee Break

12:00 PM-1:30 PM: Thursday, 26 August 2004

Lunch Break

1:30 PM-4:30 PM: Thursday, 26 August 2004

Session 12

Carbon dioxide exchange 3

Host: 26th Conference on Agricultural and Forest Meteorology

Organizer: Bertrand D. Tanner, Campbell Scientific, Inc.

1:30 PM

12.1

Relationship between soil CO₂ concentrations and forest-floor CO₂ effluxes

R. S. Jassal, University of British Columbia, Vancouver, BC, Canada; and T. A. Black, M. D. Novak, K. Morgenstern, D. Gaumont-Guay, Z. Li, and Z. Nesic

1:45 PM

12.2

Interpreting the temperature sensitivity of soil CO₂ efflux from forest soils

D. Gaumont-Guay, University of British Columbia, Vancouver, BC, Canada; and T. A. Black, T. J. Griffis, R. S. Jassal, A. G. Barr, and Z. Nesic

Recorded presentation

2:00 PM

12.3

Whole-forest and understory measurements of carbon dioxide fluxes at a boreal black spruce forest

Allison L. Dunn, Worcester State University, Worcester, MA; and S. C. Wofsy and A. V. H. Bright

Recorded presentation

2:15 PM

12.4

Relationship between CO2 Flux and CO2 Concentration at a Boreal Forest

D. Chan, MSC, Toronto, ON, Canada; and K. Higuchi, A. Shashkov, D. Worthy, J. Chen, J. Liu, and C. W. Yuen

Recorded presentation

2:30 PM

12.5

Net Carbon Exchange of three Boreal Forests during a Drought

N. Kljun, University of British Columbia, Vancouver, BC, Canada; and T. A. Black, T. J. Griffis, A. G. Barr, D. Gaumont-Guay, K. Morgenstern, J. H. McCaughey, and Z. Nesic

Presentation PDF (229.8 kB)

2:45 PM

12.6

Inter-annual variability of carbon budget components in an AsiaFlux forest site estimated by long-term flux measurement

Nobuko Saigusa, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan; and S. Yamamoto, S. Murayama, and H. Kondo

Recorded presentation

Presentation PDF (140.7 kB)

12.7

Biophysical Regulation of Energy Budget in Disturbed Forest Ecosystems of a Northern Wisconsin Landscape

12.8

Delineating the effects of water demand and availability on assimilatory and respiratory carbon fluxes in managed forest ecosystems in northern Wisconsin

3:30 PM

12.9

Comparison of net ecosystem production at mature and disturbed forest sites, Saskatchewan, Canada 2001–02

B. D. Amiro, Canadian Forest Service, Edmonton, AB, Canada; and A. G. Barr, T. A. Black, H. Iwashita, N. Kljun, J. H. McCaughey, K. Morgenstern, S. Murayama, Z. Nesic, A. L. Orchansky, and N. Saigusa

Recorded presentation

Presentation PDF (251.4 kB)

3:45 PM

12.10

Higher-order closure turbulence modeling of long term carbon exchange in an old-growth temperate forest: implications for land-use and climate changes

R. David Pyles, University of California, Davis, CA; and S. Wharton, L. Xu, K. T. Paw U, M. Falk, and M. Schroeder

Recorded presentation

Presentation PDF (273.6 kB)

4:00 PM

12.11

Linking interannual variability of carbon exchange in an old-growth forest to seasonal and interannual variations in water availability

Sonia Wharton, LLNL, Livermore, CA; and L. Xu, E. Gonzalez, M. Falk, M. Schroeder, and K. T. Paw U