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Jerry C. Ritchie, Ph.D.
Ecologist/Soil Scientist
USDA-ARS Hydrology and Remote Sensing Laboratory
Bldg. 007, Rm. 104, BARC-West
Beltsville, MD 20705-2350 USA
Voice: (301) 504-8717
Fax: (301) 504-8931
Jerry.Ritchie@ars.usda.gov
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Research Interests: (click here to see a list of current research projects)
Education:
- 1960 B.A. (Biology) Pfeiffer University, Misenheimer, NC.
- 1962 M.S. (Botany/Soils, emphasis Radioecology) University of Tennessee, Knoxville, TN.
- 1967 Ph.D. (Botany, emphasis Ecology) University of Georgia, Athens,GA.
Professional Experience:
- 1962 - 1962: Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN; Research Associate
- 1962 - 1964: Medical Research Laboratory, U.S. Army Biological Research Division, Edgewood Arsenal, MD; Biological Research Specialist
- 1964 - 1967: University of Georgia, Athens, GA; Graduate Research Fellow
- 1967 - 1968: USDA-ARS, Southeast Watershed Research Laboratory and the University of Georgia, Little River Hydrologic Study Team, Tifton, GA; Post-Doctoral Fellow in Plant and Soil Sciences
- 1968 - 1978: USDA-ARS National Sedimentation Laboratory, Oxford, MS; Botanist/Soil Scientist
- 1978 - 1983: ARS National Program Staff, USDA-ARS, Beltsville, MD; Staff Scientist
- 1983 - 1993: USDA-ARS Hydrology Laboratory, Beltsville, MD; Ecologist/Soil Scientist
- 1993 - 1995: USDA-ARS Systems Research Laboratory, Beltsville, MD; Acting Research Leader
- 1995 - present: USDA-ARS Hydrology and Remote Sensing Laboratory, Beltsville, MD; Ecologist/Soil Scientist
Selected Publications: (please contact the author to determine reprint availability)
(view author's publications/interpretive summaries/technical abstracts since 1999)
Ritchie, J.C. and P.E. Rasmussen. 2000. Application of Cesium-137 to estimate erosion rates for understanding soil carbon loss on long-term experiments at Pendleton, Oregon. Land Degradation and Development 11(1):75-81.
Ritchie, J.C. 2000. Soil Erosion, pp. 271-286, 349-350. In: G.A. Schultz and E.T. Engman (eds.), Remote Sensing in Hydrology and Water Management, Springer-Verlag, Berlin, Germany.
Ritchie, J.C. and F.R. Schiebe 2000. Water Quality, pp. 287-303, 351-352. In: G.A. Schultz and E.T. Engman (eds.), Remote Sensing in Hydrology and Water Management, Springer-Verlag, Berlin, Germany.
Havstad, K.M., W.P. Kustas, A. Rango, J.C. Ritchie, and T.J. Schmugge. 2000. Jornada experimental Range: A unique arid land location for experimentals to validate satellite systems and to understand climate change. Remote Sensng of Environment 74:13-25.
Rango, A., M.Chopping, J.C. Ritchie, K. Havstad, W. Kustas, and T. Schmugge. 2000. Morphological characteristics of shrub coppice dunes in desert grasslands of siuthern New Mexico derived from scanning lidar. Remote Sensing of Environment 74:26-44.
Ritchie, J.C. 2000. Combining Cesium-137 and topographic surveys for measuring soil erosion/deposition pattern in a rapidly accreting area. Acta Geologica Hispanica 35(3-4):207-212.
Ritchie, J.C. 2001. Cesium-137 for measuring soil erosion and redeposition: Applications for understanding soil carbon, pp. 403-415. In: R. Lal, J.M. Kimble, R.F. Follett, and B.A. Stewart (Editor), Assessment Methods for Soil Carbon, Lewis Publishers, Boca Raton, FL.
Ritchie, J.C., M.S. Seyfried, M.J. Chopping, and Y. Pachepsky. 2001. Airborne laser technology for measuring rangeland conditions. Journal of Range Management 54(2):A8-A21.
Ritchie, J.C. and C.M. Cooper. 2001. Remote sensing of water quality: Application to TMDL, pp. 367-375. In: TMDL Science Issues Conference, Water Environment Federation, Alexandria, VA.
Ritchie, J.C. and G.W. McCarty. 2001. Sediment deposition rates and carbon content in the soils and sediments of an agricultural riparian ecosystem. Seventh Federal Interagency Sedimentation Conference Proceedings Vol 2: IX41-IX46.
Ritchie, J.C., T. Schmugge, A. Rango, F.R. Schiebe, and W. Kustas. 2001. Monitoring physical and biological properties at the Sevilleta LTER using remote sensing, pp. 234-238. In: Owe, M., K. Brubaker, J. Ritchie, and A. Rango (Editors), Remote Sensing and Hydrology 2000, International Association of Hydrological Sciences Publication No. 267, International Association of Hydrolocical Sciences Press, Wallingford, United Kingdom.
Schmugge, T., A. French, J.C. Ritchie, A. Rango, and H. Pelgrum. 2002. Temperature and emissivity separation from multispectral thermal infrared observations. Remote Sensing of Environment 79(1/2):189-198.
McCarty, G.W. and Ritchie, J.C. 2002. Impact of soil movement on carbon sequestration in agricultural ecosystems. Enviromental Pollution 116(3):423-430.
Ritchie, J.C. and McCarty, G.W. 2003. Using Cs-137 to understand soil carbon redistribution on agricultural watersheds. Soil and Tillage Research 69(1-2):45-51.
Ritchie, J.C., Walling, D.E., and Peters, J. 2003. Application of geographic information systems and remote sensing for quantifying patterns of erosion and water quality. Hydrological Processes 17(5):885-886.
Krizek, D.T., Ritchie, J.C., Sadeghi, A.M., Foy, C.D., Rhoden, E.G., Davis, J.R., and Camp, M.J. 2003. A four-year study of yields of eastern gamagrass grown on an acid compact soil. Communications in Soil Science and Plant Analysis 34(3/4):457-480.
Pinter, P.J. Jr., Ritchie, J.C., Hatfiled, J.L., and Hart, G.L. 2003. The Agricultural Research Service's Remote Sensing Program: An example of Interagency Collaboration. Photogrammetric Engineering and Remote Sensing 69(6):631-646.
Ritchie, J.C., Zimba, P.V., and Everitt, J.H. 2003. Remote sening techniques to assess water quality. Photogrammetric Engineering and Remote Sensing 69(6):695-7004.
Rawls, W.J., Pachepsky, Y.A., Ritchie, J.C., Sobecki, T.M., and Bloodwort, H. 2003. Effects of soil organic matter on soil water retention. Geoderma 116(1):61-76.
Ritchie, J.C., Herrick, J.E., and Ritchie, C.A. Variability in soil redistribution in the northern Chihuahuan desert based on Cs-137 measurements. Journal of Arid Environments 55(4):737-746, 2003.
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