Jeffrey T. Walton

Year Started at Paul Smith’s: 2006
Department: Forestry

Interests and Activities

Software tools at GitHub
Publications listed at Google Scholar
My former USDA Forest Service web page

Academic Background

PhD, Environmental  Resources/Forest Engineering, SUNY ESF
MS, Aerospace Engineering, University of Texas at Austin
MS, Agriculture, Texas A&M University
BS, Aeronautical Engineering, Embry-Riddle Aeronautical University

Publications

2009       Jarrod S. Doucette, William M. Stiteler, Lindi J. Quackenbush, and Jeffrey T. Walton

A rules-based approach for predicting the eastern hemlock component of forests in the northeastern United States. Canadian Journal of Forest Research, Volume 39, Number 8, Pages 1453-1464. (pdf)

2009       Eric J. Greenfield, David J. Nowak, and Jeffrey T. Walton

Assessment of 2001 NLCD Percent Tree and Impervious Cover Estimates. Photogrammetric Engineering & Remote Sensing, 75(11): 1279-1286. (PE&RS)

2008       Walton, Jeffrey T.

Difficulties with estimating city-wide urban forest cover change from national, remotely-sensed tree canopy maps. Urban Ecosystems. 11(1):81-90. (pdf)

2008       Walton, J.T., D.J. Nowak, and E.J. Greenfield.

Assessing urban forest canopy cover using airborne or satellite imagery. Arboriculture & Urban Forestry. 34(6):334-340. (pdf)

2008       Walton, Jeffrey T.

Subpixel urban land cover estimation: comparing cubist, random forests, and support vector regression. Photogrammetric Engineering & Remote Sensing. 74(10): 1213-1222. (pdf)

2008       Nowak, D.J., J.T. Walton, J.C. Stevens, D.E. Crane, and R.E. Hoehn.

Effect of plot and sample size on timing and precision of urban forest assessments. Arboriculture & Urban Forestry. 34(6):386-390. (pdf)

2008       Nowak, David J.; Crane, Daniel E.; Stevens, Jack C.; Hoehn, Robert E.; Walton, Jeffrey T.; Bond, Jerry

A ground-based method of assessing urban forest structure and ecosystem services. Aboriculture & Urban Forestry, 34(6): 347-358. (pdf)

2005       Nowak, D.J. and J.T. Walton.

Projected urban growth (2000 – 2050) and its estimated impact on the U.S. forest resource. Journal of Forestry. 103(8):383-389. (pdf)

2005       Walton, Jeffrey T.

An investigation of national tree canopy assessments applied to urban forestry. Ph.D. Dissertation. State University of New York, College of Environmental Science and Forestry. Syracuse, NY. 95 p. (pdf)

2005       Nowak, D.J., J.T. Walton, J.F. Dwyer, L.G. Kaya and S. Myeong.

The increasing influence of urban environments on U.S. forest management. Journal of Forestry. 103(8):377-382. (pdf)

Courses Taught

GIS 220 Aerial Photo Interpretation
GIS 260 Geodesy, GPS, and GIS
GIS 350 Introduction to Remote Sensing
SRV 210 Photogrammetry

Relevant Work Experience

• 2000-2007 USDA Forest Service, Northern Research Station; Syracuse, NY Urban forestry research using remote sensing techniques and GIS.
• 1998-1999 New York State Technology Enterprise Corporation (NYSTEC); Rome, NY GIS, remote sensing, GPS business development.
• 1997 Chesapeake Bay Program, SAIC; Annapolis, MD Data management and GIS for the EPA’s Chesapeake Bay watershed analysis program.
• 1996-1998 American Forests; Washington, DC Urban forest modeling and mapping with GIS and remote sensing technologies.
• 1993-1996 Urban Forestry Program, City of Austin, Texas Ecosystem assessment, tree inventory, GIS development.
• 1993 Austin Community College; Austin, TX Adjunct instructor; taught Solar System Astronomy.
• 1987-1990 Rockwell Space Operations Company; Houston, TX Designed launch trajectories for the space shuttle program.