E. Raymond Hunt, Jr. (Ray)
Physical Scientist 
E. Raymond Hunt, Jr. (Ray)  
USDA-ARS Hydrology & Remote Sensing Lab
Bldg. 007, Rm. 104, BARC-West 
Beltsville, MD  20705-2350 USA 
(301) 504-5278 
Email:erhunt@hydrolab.arsusda.gov
 

Education:

Ph.D., 1984, Botany, University of Michigan, Ann Arbor, Michigan, 48109

M.S., 1981, Botany, University of Michigan, Ann Arbor, Michigan, 48109

B.S., 1978, Botany, Ohio University, Athens, Ohio 45701



Professional Experience:

Research Physical Scientist, 1999-present. United States Department of Agriculture, Agricultural Research Service, Hydrology and Remote Sensing Laboratory, Beltsville, Maryland 20705

Assistant Professor, 1995-1999. University of Wyoming, Department of Botany, Laramie, Wyoming 82071

Research Assistant Professor, 1989-1995. University of Montana, School of Forestry, Missoula, Montana 59812

Member of the Technical Staff and Postdoctoral Research Associate, 1986-1989. NASA Jet Propulsion Laboratory, Pasadena, California 91109

Postdoctoral Research Associate, 1984-1986. University of California at Los Angeles, Laboratory of Biomedical and Environmental Sciences, Los Angeles, California 90024

Graduate Research and Teaching Assistant, 1978-1984. University of Michigan, Biological Station and Division of Biological Sciences, Ann Arbor, Michigan 48109



Tektran For selected publications, a short summary may be found on the National Agricultural Library's Technology Transfer Automated Retrieval System (TEKTRAN).  To view this summary, click on the icon beside the publication.  To perform your own search, click here.

Publications in press:    

Selected Publications:

Hunt, E. R., Jr., McMurtrey, J. E., III, Parker-Williams, A. , and Corp, L. A., Spectral characteristics of leafy spurge leaves and flower bracts, Weed Science 52:492-497, 2004.download pdf, 132 Kb

Tektran Hunt, E. R. Jr., Kelly, R. D., Smith, W. K., Fahnestock, J. T., Welker, J. M., and Reiners, W. A. Carbon sequestration in two rangeland ecosystems from remote sensing and net ecosystem exchange, Environmental Management 33(supplement):S432-S441, 2004. download pdf, 402 Kb

Jackson, T. J., Chen, D., Cosh, M., Li, F., Anderson, M., Walthall, C., Doraiswamy, P., and Hunt, E. R., Vegetation water content mapping using Landsat data derived normalized difference water index for corn and soybeans, Remote Sensing of Environment 92:475-482, 2004. download pdf, 681 Kb

Daughtry, C. S. T., Hunt, E. R., Jr., and McMurtrey, J. E., III. Assessing crop residue cover using shortwave infrared reflectance, Remote Sensing of Environment 90:126-134, 2004. download pdf, 348 Kb

Hanson, P. J., Amthor, J. S., Wullschleger, S. D., Wilson, K. B., Grant, R. F., Hartley, A., Hui, D., Hunt, E. R., Jr., Johnson, D. W., Kimball, J. S., King, A. W., Luo, Y., McNulty, S. G., Sun, G., Thornton, P. E., Wang, S., Williams, M., Baldocchi, D. D., and Cushman, R. M. Oak forest carbon and water simulations: Model intercomparisons and evaluations against independent data, Ecological Monographs 74:443-489, 2004. download pdf, 1.7 Mb

Tektran Gillham, J. H., Hild, A. L., Johnson, J., Hunt, E. R., Jr., and Whitson, T. H., WISP: weed invasion susceptibility prediction model for rangeland geographic information systems, Arid Lands Research and Management 18:1-12, 2004. download pdf, 5.3 Mb

Parker-Williams, A., and Hunt, E. R. Jr., Accuracy assessment of leafy spurge detection with hyperspectral remote sensing, Journal of Range Management 56:106-112, 2004. download pdf, 154 Kb

Hunt, E.R., Jr., Daughtry, C. S. T., Walthall, C. L., McMurtrey, J. E., III, and Dulaney, W. P., Agricultural remote sensing using radio-controlled model aircraft, p191-199, In: VanToai, T. (Ed.), Digital Imaging and Spectral Techniques: Applications to Precision Agriculture and Crop Physiology, ASA Special Publication. ASA-CSSA-SSSA, Madison, Wisconsin, 2003. download pdf, 2.1 Mb

Tektran Hunt, E. R., Jr., Everitt, J. H., Ritchie, J. C., Moran, M. S., Booth, D. T., Anderson, G.L., Clark, P. E., and Seyfried, M. S., Applications and research using remote sensing for rangeland management, Photogrammetric Engineering & Remote Sensing 69: 675-693, 2003. download pdf, 6.0 Mb

Hunt, E. R., Jr., Biomass and cover of shortgrass steppe using AVIRIS imagery, p.163-169, In: Green, R. O. (Ed.), Proceedings of the Eleventh JPL Airborne Earth Science Workshop, JPL Publication 03-4, Jet Propulsion Laboratory, Pasadena, California, 2003. download pdf, 320 Kb

Tektran Smith, W. K., Kelly, R. D., Welker, J. M., Fahnestock, J. T., Reiners, W. A., and Hunt, E. R., Jr., Leaf-to-aircraft measurements of net CO2 exchange in a sagebrush steppe ecosystem, Journal of Geophysical Research - Atmospheres 108(D3):9.1-9.9 (DOI: 10.1029/2002JD002512), 2003. download pdf, 229 Kb

Tektran Winslow, J. C., Hunt, E. R., Jr., and Piper, S. C., A phenological model of the global C3 and C4 grass distribution with application to the United States Great Plains under a VEMAP climatic change scenario, Ecological Modelling 163:153-173, 2003. download pdf, 550 Kb

Tektran Parker-Williams, A., and Hunt, E. R., Jr., Estimation of leafy spurge cover from hyperspectral imagery using mixture tuned matched filtering, Remote Sensing of Environment 82:446-456, 2002. download pdf, 330 Kb

Tektran Kelly, R. D., Hunt, E. R., Jr., Reiners, W. A., Smith, W. K., and Welker, J. M., Relationships between daytime carbon dioxide uptake and absorbed photosynthetically active radiation for three different mountain/plains ecosystems, Journal of Geophysical Research - Atmospheres 107(D14):19.1-19.8, (DOI 10.1029/2001JD001181), 2002. download pdf, 160 Kb

Tektran Hunt, E. R., Jr., Fahnestock, J. T., Kelly, R. D., Welker, J. M., Reiners, W. A., and Smith, W. K., Carbon sequestration from remotely sensed NDVI and net ecosystem exchange, p.161-174, In: Muttiah, R. S. (Ed.), From Laboratory Spectroscopy to Remotely Sensed Spectra of Terrestrial Ecosystems, Kluwer, Dordrecht, The Netherlands, 2002. download pdf, 1.1 Mb

Hunt, E. R., Jr., Daughtry, C. S. T, McMurtrey, J. E., Walthall, C. L., Baker, J. A., Schroeder, J. C., and Liang, S., Comparison of Remote Sensing Imagery for Nitrogen Management, Proceedings of the Sixth International Conference on Precision Agriculture on CD-ROM, American Society of Agronomy, Madison, Wisconsin, 2002. download pdf, 180 Kb

Tektran Winslow, J. C., Hunt, E. R., Jr., and Piper, S. C., A globally applicable model of daily solar irradiance estimated from air temperature and precipitation data, Ecological Modelling 143:227-243, 2001. download pdf, 1.0 Mb

Slaton, M. R., Hunt, E. R., Jr., and Smith, W. K., Estimating near-infrared leaf reflectances from leaf structural characteristics, American Journal of Botany 88:278-284, 2001. download pdf, 462 Kb

Hunt, E. R., Jr., Lavigne, M. B., and Franklin, S. E., Factors controlling the decline of net primary production with stand age for balsam fir in Newfoundland assessed using an ecosystem simulation model, Ecological Modelling 22:151-164, 1999. download pdf, 240 Kb

Franklin, S. E., Lavigne, M. B., Deuling, M. J., Wulder, M. A., and Hunt, E. R., Jr., Estimation of forest leaf area index using remote sensing and GIS data for modelling net primary production, International Journal of Remote Sensing 18: 3459-3471, 1997. download pdf, 2.6 Mb

Franklin, S. E., Lavigne, M. B., Deuling, M. J., Wulder, M. A., and Hunt, E. R., Jr., Landsat TM derived forest covertypes for modelling net primary production, Canadian Journal of Remote Sensing 23: 243-251, 1997.

Hunt, E. R., Jr., Piper, S. C., Nemani, R., Keeling, C. D., Otto, R. D., and Running, S. W., Global net carbon exchange and intra-annual atmospheric CO2 concentrations predicted by an ecosystem process model and three-dimensional atmospheric transport model, Global Biogeochemical Cycles 10:431-456, 1996. download pdf, 39.1 Mb

Lavigne, M. B., Franklin, S. E., and Hunt, E. R., Jr., Estimating stem maintenance respiration rates of dissimilar balsam fir stands, Tree Physiology 16:687-695, 1996. download pdf, 3.2 Mb

Kremer, R. G., Hunt, E. R., Jr., Running, S. W., and Coughlan, J. C., Simulating vegetational and hydrologic responses to natural climatic variation and GCM-predicted climate change in a semi-arid ecosystem in Washington, U.S.A., Journal of Arid Environments 33:23-38, 1996. download pdf, 150 Kb

Zheng, D., Hunt, E. R., Jr., and Running, S. W., Prediction of available soil water capacity based on topographic analysis for regional applications, Landscape Ecology 11:3-14, 1996.

Running, S. W., Loveland, T. R., Pierce, L. L., Nemani, R., and Hunt, E. R., Jr., A remote sensing based vegetation classification logic for global land cover analysis, Remote Sensing of Environment 51:39-48, 1995. download pdf, 1.0 Mb

Waring, R. H., Way, J. B., Hunt, E. R., Jr., Morrisey, L., Oren, R., Ranson, J., and J. Weishampel, J., Imaging radar for ecosystem studies. Bioscience 45:715-723, 1995. download pdf, 6.5 Mb

Hunt, E. R., Jr., Relationship between woody biomass and PAR conversion efficiency for estimating net primary production from NDVI, International Journal of Remote Sensing 15:1725-1730, 1994. download pdf, 306 Kb

Zheng, D., Hunt, E. R., Jr., and Running, S. W., A daily soil temperature model derived from air temperature and precipitation for continental applications, Climate Research 2:183-191, 1993.

Hunt, E. R., Jr. and Running, S. W., Simulated dry matter yields for aspen and spruce stands in the North American boreal forest, Canadian Journal of Remote Sensing 16:126-134, 1992. download pdf, 5.1 Mb

Hunt, E. R., Jr., Airborne remote sensing of canopy water thickness scaled from leaf spectrometer data, International Journal of Remote Sensing 12:643-649, 1991. download pdf, 354 Kb

Hunt, E. R., Jr., Running, S. W., and Federer, C. A., Extrapolating plant water flow resistances and capacitances to regional scales, Agricultural and Forest Meteorology 54:169-195, 1991. download pdf, 1.6Mb

Hunt, E. R., Jr., Martin, F. C., and Running, S. W., Simulating the effects of climatic variation on stem carbon accumulation of a ponderosa pine stand: comparison to annual growth increment data, Tree Physiology 9:161-171, 1991. download pdf, 2.8 Mb

Hunt, E. R., Jr. and Rock, B. N., Detection of changes in leaf water content using near- and middle-infrared reflectances, Remote Sensing of Environment 30:43-54, 1989. download pdf, 1.0 Mb

Hunt, E. R., Jr., Rock, B. N., and Nobel, P. S., Measurement of leaf relative water content by infrared reflectance, Remote Sensing of Environment 22:429-435, 1987. download pdf, 473 Kb

Hunt, E. R., Jr. and Nobel, P. S., Non-steady-state water flow for three desert perennials with different capacitances, Australian Journal of Plant Physiology 14:363-375, 1987.

Hunt, E. R., Jr. and Nobel, P. S., Allometric root/shoot relationships and predicted water uptake for desert succulents, Annals of Botany 59:571-577, 1987.

Hunt, E. R., Jr. and Nobel, P. S., A two-dimensional model for water uptake by desert succulents: implications of root distribution, Annals of Botany 59:559-569, 1987.

Hunt, E. R., Jr., Weber, J. A., and Gates, D. M., Effects of nitrate application on Amaranthus powellii Wats. III. Optimal allocation of leaf nitrogen for photosynthesis and stomatal conductance, Plant Physiology 79:619-624, 1985.

Hunt, E. R., Jr., Weber, J. A., and Gates, D. M., Effects of nitrate application on Amaranthus powellii Wats. II. Stomatal response to vapor pressure difference is consistent with optimization of stomatal conductance, Plant Physiology 79:614-618, 1985.

Hunt, E. R., Jr., Weber, J. A., and Gates, D. M., Effects of nitrate application on Amaranthus powellii Wats. I. Changes in photosynthesis, growth rates, and leaf area, Plant Physiology 79:609-613, 1985.

Hunt, E. R., Jr. and Jaffe, M. J., Thigmomorphogenesis: The interaction of wind and temperature in the field on the growth of Phaseolus vulgaris L., Annals of Botany 45:665-672, 1980.


Hydrology & Remote Sensing Lab