WILLIAM WALTER HARGROVE

Oak Ridge National Laboratory
Environmental Sciences Division
P.O. Box 2008, M.S. 6407
Oak Ridge, TN 37831-6407
(865) 241-2748 (work)
(865) 574-4665 (fax)
hnw@fire.esd.ornl.gov

Education
Institution Degree Year Concentration
Oak Ridge National Laboratory Postdoc 1992 Spatial Modeling, GIS
University of Georgia Postdoc 1991 GIS, UNIX
University of Georgia MS 1983 Entomology
Vanderbilt University BS1978 General Biology

Professional Employment

ORNL Research Scientist, ORNL Environmental Sciences Division, Ecosystem Sciences Group - 2003-present

Adjunct Faculty, University of Tennessee, Ecology and Evolutionary Biology Department - 2003-present

Adjunct Faculty, University of Tennessee, Forestry, Wildlife, and Fisheries Department - 2005-present

ORNL Research Scientist, ORNL Environmental Sciences Division, Computational and Data Management Technologies Group - 2001-2003

ORNL Research Scientist, ORNL Computational Physics and Engineering Division, Geographic Information and Spatial Technologies Group - 2000-2001

University of Tennessee, under subcontract to ORNL Computational Physics and Engineering Division, Geographic Information and Spatial Technologies Group - 1997-2000

University of Tennessee, under subcontract to ORNL Environmental Sciences Division, Clinch River Environmental Restoration Project - 1994-1997

Professional Experience - Current Projects

Professional Experience - Past Projects

Honors and Advisory Committees

Peer-reviewed Publications

Hargrove, W.W. and F.M. Hoffman. 2005. Minimum Required Migration Distances: A new tool for estimating climate change impacts. Journal of Geophysical Research - Biogeosciences (submitted).

Hargrove, W.W., F.M. Hoffman, and P.F. Hessburg. 2005. Mapcurves: A generalized algorithm for quantitative comparison of categorical maps. Journal of Geographical Systems (in press).

Hargrove, W.W., F.M. Hoffman, and R.A. Efroymson. 2005. A practical map-analysis tool for detecting potential dispersal corridors. Landscape Ecology 20(4):in press.

White, M.A., F.M. Hoffman, W.W. Hargrove, and R.R. Nemani. 2005. A global framework for monitoring phenological responses to climate change. Geophysical Research Letters 32(4):L04705, doi:1029/2004GL021961.

Saxon, E., B. Baker, W.W. Hargrove, F.M. Hoffman, and C. Zganjar. 2005. Mapping environments at risk under different global climate change scenarios. Ecology Letters 8:53-60.

Hoffman, F.M., W.W. Hargrove, D.J. Erickson, III, and R. Oglesby. 2005. Using clustered climate regimes to analyze and compare predictions from fully coupled general circulation models. Earth Interactions 9:1-27.

Efroymson, R.A, T.M. Carlsen, H.I. Jager, T. Kostova, E.A. Carr, W.W. Hargrove, J. Kercher, and T.L. Ashwood. 2004. Toward a framework for assessing risk to vertebrate populations from brine and petroleum spills at exploration and production sites. Pp. 261-285 in: Landscape Ecology and Wildlife Habitat Evaluation: Critical Information for Ecological Risk Assessment, Land-Use Management Activities, and Biodiversity Enhancement Practices, ASTM STP 1458, L. Kapustka, H. Galbraith, M. Luxon, and G.R. Biddinger (eds.), American Society for Testing and Materials, West Conshohocken, PA.

Hargrove, W.W., and F.M. Hoffman. 2004. The potential of multivariate quantitative methods for delineation and visualization of ecoregions. Environmental Management 34(5):S39-S60.

Martinez-Meyer, E., A. Townsend Peterson, and W.W. Hargrove. 2004. Ecological niches as stable distributional constraints on mammal species, with implications for Pleistocene extinctions and climate change projections for biodiversity. Global Ecology and Biogeography 13:305-314.

Peterson, A.T., R. Scachetti-Pereira, and W.W. Hargrove. 2004. Potential distribution of Anoplophora glabripennis (Coleoptera: Cerambycidae) in North America. American Midland Naturalist 151(1):170-178.

Hargrove, W.W., F.M. Hoffman, and B.E. Law. 2003. New Analysis Reveals Representativeness of the AmeriFlux Network. Eos 84(48):529-535.

Hargrove, W.W., and F.M. Hoffman. 2003. An analytical assessment tool for predicting changes in a species distribution map following changes in environmental conditions. Proceedings, GIS/EM4 Conference, Banff, Alberta, Canada, Sept. 2-8, 2000. CD-ROM, ISBN: 0-9743307-0-1.

Hargrove, W.W., F.M. Hoffman, and P.M. Schwartz. 2002. A Fractal Landscape Realizer for generating synthetic maps. Conservation Ecology 6(1): 2. [online]: http://www.consecol.org/vol6/iss1/art2

Huff, D.D., W.W. Hargrove, R.L. Graham, N.T. Nikolov, and M. Lynn Tharp. 2002. A GIS/simulation framework for assessing change in water yield over large spatial scales. Environmental Management 29(2):164-181.

Luxmoore, R.L., W.W. Hargrove, M. Lynn Tharp, W. Mac Post, M.W. Berry, K.S. Minser, W.P. Cropper, Jr., D.W. Johnson, B. Zeide, R.L. Amateis, H.E. Burkhart, V.C. Baldwin, Jr., and K.D. Peterson. 2002. Addressing multi-use issues in sustainable forest management with signal-transfer modeling. Forest Ecology and Management 165:295-304.

Chen, L., M.W. Berry, and W.W. Hargrove. 2001. Using dendronal signatures for feature extraction and retrieval. International Journal of Imaging Systems and Technology 11(4):243-253.

Clark, M.E., K.A. Rose, D.A. Levine, and W.W. Hargrove. 2001. Predicting climate change effects on Appalachian trout: combining GIS and individual-based modeling. Ecological Applications 11(1):161-178.

Hargrove, W.W., F.M. Hoffman, and T.L. Sterling. 2001. The do-it-yourself supercomputer. Scientific American 256(2):72-79.

Hargrove, W.W., R.H. Gardner, M.G. Turner, W.H. Romme, and D.G. Despain. 2000. Simulating fire patterns in heterogeneous landscapes. Ecological Modelling 135(2-3):243-263.

Huff, D.D., W.W. Hargrove, M.L. Tharp, and R.L. Graham. 2000. Managing forests for water yield: the importance of scale. Journal of Forestry 98(12):15-19.

Jager, H.I., W.W. Hargrove, C.C. Brandt, A.W. King, R.J. Olson, J.M.O. Scurlock, and K.A. Rose. 2000. Constructive contrasts between modeled and measured climate responses over a regional scale. Ecosystems 3(4):396-411.

Gwo, J.P., F.M. Hoffman, and W.W. Hargrove. 2000. Mechanistic-based genetic algorithm search on a Beowulf cluster of Linux PCs. Proceedings of the High-Performance Computing 2000 (HPC 2000) Conference, Washington, DC. http://www.pdv.cs.tu-berlin.de/HPC/hpc2000.html.

Luxmoore, R.J., W.W. Hargrove, M.L. Tharp, W.M. Post, M.W. Berry, K.S. Minser, W.P. Cropper, D.W. Johnson, B. Zeide, R.L. Amateis, H.E. Burkhart, V.C. Baldwin, Jr., and K.D. Peterson. 2000. Signal-transfer modeling for regional assessment of forest responses to environmental changes in the southeastern United States. Environmental Modeling and Assessment 5(2):125-137.

Mahinthakumar, G., F.M. Hoffman, W.W. Hargrove, and N.T. Karonis. 2000. Multivariate Geographic Clustering in a metacomputing environment using Globus. Proceedings of the ACM/IEEE Supercomputing '99 (SC99) Conference, Nov. 13-15, Portland, OR. http://climate.ornl.gov/~forrest/sc99/

Mann, L.K., A.W. King, R.A. Washington-Allen, W.W. Hargrove, V.H. Dale, T.L. Ashwood, and L.R. Pounds. 2000. The role of soil classification in GIS modeling of habitat pattern: threatened calcareous ecosystems. Ecosystems 2(6):524-538.

Stoms, D.M., and W.W. Hargrove. 2000. Modeling potential NDVI to monitor environmental stress. International Journal of Remote Sensing 21(2):401-407.

Hargrove, W.W., and F.M. Hoffman. 1999. Using multivariate clustering to characterize ecoregion borders. Computers in Science and Engineering 1(4):18-25. Invited. Special Issue on Scientific Visualization of Massive Data Sets

Zartman, R., R.J. Luxmoore, and W.W. Hargrove. 1999. Climate. pp. 14-19 In: H. Don Scott (ed.), Water and Chemical Transport in Soils of the Southeastern United States. Special Report 197, Arkansas Agricultural Experiment Station, University of Arkansas, Fayetteville, Arkansas. 388 pgs.

Turner, M.G., W.H. Romme, R.H. Gardner, and W.W. Hargrove. 1997. Effects of fire size and pattern on early succession in Yellowstone National Park. Ecological Monographs 67(4):411-433.

Tyler, J.A., and W.W. Hargrove 1997. Predicting spatial distribution of foragers over large resource landscapes: a modeling analysis of the Ideal Free Distribution. Oikos 79(2):376-386.

Romme, W.H., M.G. Turner, R.H. Gardner, W.W. Hargrove, G.A. Tuskan, D.G. Despain, and R. Renkin. 1997. A rare episode of sexual reproduction in Aspen (Populus tremuloides Michx.) following the 1988 Yellowstone fires. Natural Areas Journal 17(1):17-25.

Gardner, R.H., W.W. Hargrove, M.G. Turner, and W.H. Romme. 1996. Climate change, disturbances, and landscape dynamics. Pages 149-172 In: B. Walker and W. Steffen (eds.). Global Change and Terrestrial Ecosystems. International Geosphere-Biosphere Programme Book Series - Book # 2. Cambridge University Press, Cambridge, Great Britain. 619 pgs.

Plotnick, R.E., R.H. Gardner, W.W. Hargrove, K. Prestegaard, and M. Perlmutter. 1996. Lacunarity analysis: A general technique for the analysis of spatial patterns. Physical Review E 53(5):5461-5468.

Tinker, D.B., W.H. Romme, W.W. Hargrove, R.H. Gardner, and M.G. Turner. 1994. Landscape-scale heterogeneity in lodgepole pine serotiny. Canadian Journal of Forest Research 24:897-903.

Turner, M.G, W.W. Hargrove, R.H. Gardner, and W.H. Romme. 1994. Effects of fire on landscape heterogeneity in Yellowstone National Park, Wyoming. Journal of Vegetation Science 5:731-742.

Hargrove, W.W., and J. Pickering. 1992. Pseudoreplication: a sine qua non for regional ecology. Landscape Ecology 6(4):251-258.

Pickering, J., W.W. Hargrove, J.D. Dutcher, and HC Ellis. 1989. RAIN - a novel approach to computer-aided decision making in agriculture and forestry. Computers and Electronics in Agriculture 4(4):275-285.

Hargrove, W.W. 1988. A photographic technique for tracking herbivory on individual leaves through time. Ecological Entomology 13:359-363.

Hargrove, W.W., and D.A. Crossley, Jr. 1988. Video digitizer for the rapid measurement of leaf area lost to herbivorous insects. Annals of the Entomological Society of America 81(4):593-598.

Hargrove, W.W., and J.R. O'Hop. 1988. A computer algorithm to estimate leaf area removal (LAR) by insects. Laboratory Microcomputer 7(1):36-40. Errata: 7(2):76.

Crossley, D.A., Jr., C.S. Gist, W.W. Hargrove, L.S. Risley, T.D. Schowalter, and T.R. Seastedt. 1987. Foliage Consumption and Nutrient Dynamics in Canopy Insects. Chapter 14, pp. 193-205 In: W.T. Swank and D.A. Crossley, Jr. (eds.), Forest Hydrology and Ecology at Coweeta. Proc. symp. in Athens, Ga., Oct. 15-17, 1984. Springer-Verlag Ecological Studies Series, Vol. 66, New York. 469 pgs.

Schowalter, T.D., D.A. Crossley, Jr., and W.W. Hargrove. 1986. Herbivory in Forested Ecosystems. Annual Review of Entomology 31:177-196.

Hargrove, W.W., D.A. Crossley, Jr., and T.R. Seastedt. 1985. Shifts in insect herbivory in the canopy of black locust, Robinia pseudoacacia L., following fertilization. Oikos 43(3):322-328.

Seastedt, T.R., D.A. Crossley, Jr., and W.W. Hargrove. 1983. The effects of low-level consumption by canopy arthropods on the growth and nutrient dynamics of black locust and red maple trees in the southern Appalachians. Ecology 64(5):1040-1048.

Non-peer-reviewed Publications

Efroymson, R.A., M.J. Peterson, N.R. Giffen, M.G. Ryon, J.G. Smith, W.K. Roy, C.J. Welsh, D.L. Druckenbrod, W.W. Hargrove, and H.D. Quarles. 2005. Investigating habitat value in support of remedial decisions: a case study of six sites at the East Tennessee Technology Park. Technical Report BJC/OR-2268. Bechtel Jacobs Company, Oak Ridge, TN.

Hargrove, W.W., and F.M. Hoffman. 2004. A Flux Atlas for Representativeness and Statistical Extrapolation of the AmeriFlux Network. ORNL Technical Memorandum ORNL/TM-2004/112. Available at http://geobabble.ornl.gov:/flux-ecoregions

Lozar, R.C., W.W. Hargrove, and F.M. Hoffman. 2004. Use of the Corridor Tool in Support of Threatened and Endangered Species Habitat Fragmentation: Input Procedure and Initial Results. U.S. Army Corps of Engineers, Engineer Research and Development Center, Technical Report ERDC/CERL TR-04, 60 pgs. Available at http://www.cecer.army.mil

Hargrove, W.W., C.C. Brandt, H.I. Jager, and R.A. McCord. 2002. A "make-a-difference" experiment to assess the value of ARM data in carbon cycle models. Twelfth ARM Science Team Meeting Proceedings, St. Petersburg, Florida, April 8-12, 2002.

Efroymson, R.A., W.W. Hargrove, M.J. Peterson, D.S. Jones, W.H. Rose, L.L. Pater, G.W. Suter II, and K.A. Reinbold. 2001. Demonstration of the Military Ecological Risk Assessment Framework (MERAF): Apache Longbow-Hellfire missile test at Yuma Proving Ground. ORNL Technical Memorandum ORNL/TM-2001/211. 119 pgs.

Hargrove, W.W. 2001. Book review of Terrestrial Ecoregions of North America. Quarterly Review of Biology 76(2):256-257.

King, A.W., L.K. Mann, W.W. Hargrove, T.L. Ashwood, and V.H. Dale. 2001. Assessing the persistence of an avian population in a managed landscape: A case study with Henslow's Sparrow at Ft. Knox, Kentucky. ORNL. Technical Memorandum ORNL/TM-13734.

Hoffman, F.M., and W.W. Hargrove. 2000. High performance computing: an introduction to parallel programming with Beowulf. Open Source Developers Journal 1(1)24-31. Available at http://climate.ornl.gov/~forrest/osdj-2000-11/.

Hoffman, F.M., and W.W. Hargrove. 1999. Multivariate Geographic Clustering using a Beowulf-style parallel computer. In: Parallel and Distributed Processing Techniques and Applications (PDPTA '99), Vol. III, H.R. Arabina, Ed., ISBN 1-892512-11-4, CSREA Press, pp. 1292-1298.

Hoffman, F.M., and W.W. Hargrove. 1999. Parallel computing with Linux. Fall, 1999. Crossroads: Association for Computing Machinery 6(1).

Hoffman, F.M., and W.W. Hargrove. 1999. Cluster computing: Linux taken to the extreme. Linux Magazine 1(1):56-59.

Huff, D.D., W.W. Hargrove, and R.L. Graham. 1999. Adaptation of WRENSS Fortran 77 for a GIS application for water-yield changes.i ORNL Technical Memorandum ORNL/TM-13747.

Hargrove, W.W. 1998. Maps are not paper! Readers' Forum, GEOWorld 11(11):11.

Hargrove, W.W. 1996. Visualization techniques aid environmental restoration efforts. Scientific Computing and Automation, October 1996:35-36.

Hargrove, W.W. 1996. Over the horizon - Perspectives on future directions in GIS. Readers' Forum, GIS World 9(3):28.

Hargrove, W.W. 1987. A video digitizer for the rapid measurement of leaf area removed by herbivorous insects. Technological Tools, Bulletin of the Ecological Society of America 68(2):185.

Hargrove, W.W. 1986. An annotated species list of insects associated with black locust, Robinia pseudoacacia L., in the southern Appalachians. Entomological News 97(1):36-40.

Web Publications

Hargrove, W.W., and F.M. Hoffman. 2005. ORNL-TNC Quantitative Global Ecoregions Using Similarity Colors. Available at http://research.esd.ornl.gov/~hnw/global/ORNL-TNC/index.simcolors.html

Hargrove, W.W., and F.M. Hoffman. 2004. A Flux Atlas for Representativeness and Statistical Extrapolation of the AmeriFlux Network. Available at http://geobabble.ornl.gov:/flux-ecoregions

Hargrove, W.W., and F.M. Hoffman. 2004. A Practical Map-Analysis Tool for Detecting Potential Dispersal Corridors. Available at http://research.esd.ornl.gov/~hnw/walkers/presentation6

Hargrove, W.W., and F.M. Hoffman. 2003. Dynamic Oceanic Water-Masses for the World's Oceans Based on Quantitative Ecoregions. Available at http://research.esd.ornl.gov/~hnw/oceans

Hargrove, W.W., and F.M. Hoffman. 2002. Recent changes in the configuration of the DOE AmeriFlux network and their effects on network representation.. Available at http://research.esd.ornl.gov/~hnw/networks2

Hargrove, W.W., and F.M. Hoffman. 2002. Representativeness and network site analysis based on quantitative ecoregions. Available at http://research.esd.ornl.gov/~hnw/networks

Hargrove, W.W., C.C. Brandt, H.I. Jager, and R.M. McCord. 2002. A "make-a-difference" experiment to assess the value of ARM data in carbon cycle models. Available at http://www.archive.arm.gov/Carbon

Hargrove, W.W., and F.M. Hoffman. 2002. New high-resolution national map series of vegetation ecoregions produced empirically using multivariate spatial clustering. Available at http://research.esd.ornl.gov/~hnw/ecoregions/ecoregions.html

Hargrove, W.W., R.A. Efroymson, M. Peterson, and D.S. Jones. 2001. Hydrologic and Noise Assessment of Apache Longbow Hellfire Training at Yuma Proving Ground. Available at http://research.esd.ornl.gov/~hnw/ypg

Hargrove, W.W., and F.M. Hoffman. 2000. National clustered ecoregion products and the input layers from which they were statistically derived Available at http://geobabble.ornl.gov/cgi-bin/pzs

Hargrove, W.W., and F.M. Hoffman. 1999. Optimizing Master/Slave Dynamic Load-Balancing in Heterogeneous Parallel Environments. Available at http://research.esd.ornl.gov/~hnw/sc99

Hargrove, W.W., and F.M. Hoffman. 1999. Using multivariate clustering to characterize ecoregion borders. Available at http://research.esd.ornl.gov/~hnw/borders

Hargrove, W.W., and J. Adams. 1999. Estimating temperature and precipitation at the Last Glacial Maximum. Available at http://research.esd.ornl.gov/~hnw/valdai

Hargrove, W.W. 1997. Interpolation of Rainfall in Switzerland using a Regularized Spline with Tension, Available at http://research.esd.ornl.gov/~hnw/sic97

Hoffman, F.M., and W.W. Hargrove. 1997. The Stone SouperComputer - the first Beowulf-style parallel supercomputer at Oak Ridge National Laboratory. Available at http://stonesoup.esd.ornl.gov

Hargrove, W.W., and R.J. Luxmoore. 1997. A Clustering Technique for the Generation of Customizable Ecoregions. Proceedings, ESRI Arc/INFO Users Conference, Palm Springs, Ca. Available at http://gis.esri.com/library/userconf/proc97/proc97/TO250/pap226/p226.htm

Hargrove, W.W., D.A. Levine, M.R. Miller, P.R. Coleman, D.L. Pack, and R.C. Durfee. 1996. GIS and Risk Assessment: A fruitful combination. Proceedings, ESRI Arc/INFO Users Conference, Palm Springs, Ca. Available at http://gis.esri.com/library/userconf/proc96/TO50/PAP028/P28.HTM

Hargrove, W.W., R.F. Winterfield, and D.A. Levine. 1995. Dynamic Segmentation and Thiessen polygons: a solution to the River Mile problem. Proceedings, ESRI Arc/INFO Users Conference, Palm Springs, Ca. Available at http://gis.esri.com/library/userconf/proc95/to150/p114.html

Hargrove, W.W. 1994. Using EMBYR, a large-scale probabilistic fire model, to re-create the Yellowstone Forest Lake fire. Environmental Research News, http://research.esd.ornl.gov/EMBYR/embyr.html

Recent Presentations (of more than 150)

March 2006
21st Annual U.S. International Association of Landscape Ecology Meeting - San Diego, CA
Developing a Map of Domains for the National Ecological Observatory Network (NEON)

January 2006
1st Integrated Land Ecosystem-Atmosphere Processes Study (iLEAPS) Science Conference - Boulder, CO
Quantifying Representativeness Importance Values for AmeriFlux Tower Locations.

December 2005
American Geophysical Union - San Francisco, CA
Quantifying Representativeness Importance Values for AmeriFlux Tower Locations.

October 2005
AmeriFlux Science Team Meeting - Boulder, CO
Quantifying Representativeness Importance Values for AmeriFlux Sites.

April 2005
University of Tennessee Environmental Semester - Knoxville, TN
A Practical Map-analysis Tool for Potential Corridor Detection (invited).

March 2005
20th Annual U.S. International Association of Landscape Ecology Meeting - Syracuse, NY
Mapcurves: A Quantitative Method for Comparing Categorical Maps.

March 2005
ARM Science Team Meeting - Daytona Beach, FL
Using Clustering to Establish Climate Regimes for PCM Output.

December 2004
American Geophysical Union - San Francisco, CA
Quantifying Representation and Using Representation Weights to Interpolate Flux Tower Measurements across the United States.

October 2004
AmeriFlux Science Team Meeting - Boulder, CO
Representativeness of the AmeriFlux Network.

September 2004
Society for Conservation GIS - National Conservation Training Center, WVa
Panel Discussion - Evaluation of Conservation Strategies and Systems (invited).

September 2004
Society for Conservation GIS - National Conservation Training Center, WVa
A Practical Map-analysis Tool for Potential Corridor Detection.

September 2004
CERL Army Corps of Engineers - Champaign, IL
Using a Corridor Tool to Define Threatened and Endangered Species FOR Areas near Military Bases (invited).

August 2004
Innovative Computing Laboratory (ICL) Colloquium - Knoxville, TN
Why Linux Clusters are Good for the Environment (invited).

August 2004
NACP Remote Sensing Workshop - Missoula, MT
No formal presentation.

August 2004
MODIS Vegetation Workshop - Missoula, MT
Improving Representativeness of the AmeriFlux Network based on MODIS Vegetation Information.

April 2004
19th Annual U.S. International Association of Landscape Ecology Meeting - Las Vegas, NV
A Practical Map-analysis Tool for Potential Corridor Detection.

December 2003
American Geophysical Union Meeting - San Francisco, CA
Using Clustering to Establish Climate Regimes from PCM Output.

December 2003
American Geophysical Union Meeting - San Francisco, CA
Environmental Representativeness of the AmeriFlux Network.

November 2003
AmeriFlux Meeting - Boulder, CO
Optimization of the AmeriFlux Network Based on Environmental Clustering.

July 2003
NBII Biodiversity Modeling Meeting - Maui, HI
Statistical Location of Hutchinsonian Environmental Niche Hypervolumes using Fixed-Radius Multivariate Geographic Clustering.

June 2003
USDA Forest Service NACP Tier III Meeting - Portsmouth, NH
Representativeness and Network Site Analysis Based on Quantitative Ecoregions.

May 2003
North American Carbon Program Planning Meeting - Washington, D.C.
Optimization of Sampling Network-design Within a Quantitative Ecoregion Framework.

April 2003
ASTM Symposium on Landscape Ecology and Wildlife Habitat Evaluation - Kansas City, MO
A Practical Map-analysis Tool for Corridor Detection.

April 2003
ASTM Symposium on Landscape Ecology and Wildlife Habitat Evaluation - Kansas City, MO
Toward a Framework for Assessing Risk to Vertebrate Populations from Brine and Petroleum Spills at Exploration and Production Sites.

March 2003
Atmospheric Radiation Measurement Science Team Meeting - Broomfield, CO
Characterizing and Filling Temporal Gaps in Hour-Aggregated ARM Measurements for Use in Carbon Models.

March 2003
Atmospheric Radiation Measurement Science Team Meeting - Broomfield, CO
Multivariate Spatio-Temporal Clustering of Time-Series Data: an Approach for Diagnosing Cloud Processes and Understanding ARM Site Representativeness.

February 2003
83rd Annual Meeting of the American Meteorological Society - Long Beach, CA
Using Clustered Climate Regimes for Understanding Water Cycle Variability.

January 2003
U.S.-Japan Climate Change Workshop - Irvine, CA
Regional Water Cycle Studies: Models versus Observational Data.

December 2002
American Geophysical Union Meeting - San Francisco, CA
A "Make-a-Difference" Experiment to Assess the Value of ARM Data in Carbon Cycle Models.

December 2002
American Geophysical Union Meeting - San Francisco, CA
Using Clustering to Establish Climate Regimes from PCM Output.

November 2002
NASA Marshall Space Flight Center - Huntsville, AL
Using Clustering to Establish Climate Regimes from PCM Output.

October 2002
Carbon Data Assimilation Meeting - College Park, MD
No formal presentation.

September 2002
Southern Appalachian Information Node, NBII - Knoxville, TN
A Map-Analysis Tool for Corridor Detection.

August 2002
Insurance catastrophe-modeling workshop - Peoria, IL
EMBYR, a Probabilistic Model of Wildfire Propagation Risk. (invited)

August 2002
Fish and Wildlife Service Regional GIS workshop, Management track - Cookeville, TN
Computer-generated Ecoregions as a Basis for Sampling-network Design. (invited)

July 2002
National GAP Program annual meeting - Shepardsville, Wva
Statistical Delineation of Ecoregions of Nebraska using GAP Data.

July 2002
USDA Agricultural Research Service Germplasm Research Information Network - Beltsville, MD
Computer-generated Ecoregions as a Basis for Sampling-network Design. (invited)

July 2002
MODIS Vegetation workshop - Missoula, MT
A "Make-a-difference" Experiment to Assess the Value of ARM Data in Carbon Cycle Models.

June 2002
Climate Change and Assessment Working Group - Breckenridge, CO
Animations and Early Clustering Results using PCM Model Output. (invited)

June 2002
Ecosystem Health Conference - Washington, D.C.
Investigations of Environmental Factors and Cancer Mortality using GIS and Spatial Analytical Tools.

May 2002
Nashville Linux Users Group - Nashville, TN
The Stone SouperComputer: a Beowulf-style Cluster for Tackling Ecological Computational Problems. (invited)

April 2002
17th Annual U.S. International Association of Landscape Ecology Meeting - Lincoln, NE
Computer-generated Ecoregions as a Basis for Sampling-network Design.

April 2002
Atmospheric Radiation Measurement (ARM) Science Team Meeting - St. Petersburg, FL
A "Make-a-difference" Experiment to Assess the Value of ARM Data in Carbon Cycle Models.

August 2001
ORNL Physics Division Colloquium - Oak Ridge, TN
The Stone SouperComputer: a Beowulf-style Cluster for Tackling Ecological Computational Problems. (invited)

May 2001
Applications of GIS to Bioinformatics - Blacksburg, VA
No formal presentation.

April 2001
16th Annual U.S. International Association of Landscape Ecology Meeting - Tempe, AZ
Multivariate Ecoregions of the United States: a Statistical Delineation.

March 2001
2001 North Carolina GIS Conference - Winston-Salem, NC
Multivariate Spatio-Temporal Clustering (MSTC) using a Beowulf-style parallel supercomputer. (invited)

December 2001
American Geophysical Union Fall Meeting - San Francisco, CA
FLUXNET: Distribution of a Global Network of Eddy-covariance Towers and their Role in Validating Models and Remote Sensing Products.

November 2000
Supercomputing '00 - Dallas, TX
Climate Change Effects Predicted by Two Leading Global Circulation Models Compared to Present-day Climate.

October 2000
Friends of ORNL - Oak Ridge, TN
From Fable to Beowulf: the Legend of the Stone SouperComputer. (invited)

September 2000
Fourth International Conference on Integrating GIS and Environmental Modeling - Banff, Alberta, CANADA
An Analytical Assessment Tool for Predicting Changes in a Species Distribution Map Following Changes in Environmental Conditions.

August 2000
IUFRO World Congress - Kuala Lumpur, Malaysia
Nutrient Management Guidance for Enhancing Sustainable Forest Productivity.

July 2000
Synthetic Aperture Radar Workshop - Los Angeles, CA
Southern California Earthquake Center/NASA/NSF

April 2000
15th Annual U.S. International Association of Landscape Ecology Meeting - Ft. Lauderdale, FL
An Analytical Assessment Tool for Predicting Changes in a Species Distribution Map Following Changes in Environmental Conditions.

March 2000
High-Performance Computing 2000 - Washington, DC
Mechanistic-Based Genetic Algorithm Search on a Beowulf Cluster of Linux PCs.

March 2000
Horizon Day - Bloomington, IN
Linking Computers to Solve Environmental Problems: optimistic Clairvoyance from an Applied Perspective (invited).