OREGON STATE UNIVERSITY

Temesgen, Hailemariam

Associate Professor in Forest Biometrics & Measurements

Office Location: 
Peavy 237
Phone: 
541-737-8549
Email Address: 
Education: 

PhD, 1999, Forest Biometrics, University of British Columbia
MS, 1992, Forest Management, Lakehead University
BS, 1986, Plant Sciences, Alemaya University of Agriculture

Areas of Interest: 

Forest measurements and biometrics, modeling, and LiDAR

Current Programs: 

Develop imputation and sampling techniques to assess, monitor, and analyze forest resources; develop quantitative methods to characterize, quantify, and integrate tree/crown attributes and site productivity; and integrate airborne LiDAR and ground data to estimate status, change, and trends.

Graduate Students: Elijah Allensworth (MS), Lacey Jeroue (MS), Krishna Poudel (PhD), Joonghon Shin (PhD), Michael Shettles (MS)

Courses: 
  • FOR 321, Forest Mensuration
  • FOR 524, Forest Biometrics
Recent Publications: 

For PDF copies of all publications, please visit the Forest Measurements and Biometrics Lab Publications website.

2013

Strunk, J., H. Temesgen, H.E. Andersen, and Packalen, P.  2013. (in press). Prediction of Forest Attributes with Landsat and a Sample of Lidar Strips: A Case Study on the Kenai Peninsula, Alaska.  Photogrammetric Engineering and Remote Sensing.

Temesgen, H., C. Zhang, and X. Zhao. 2013.  (in press). Modelling spatial variation in tree height-diameter  relationships of multi-species and multi-layered forests.  Forest Ecology and Management. 276: 139-145.

Goerndt, M.E., V.J. Monleon, and H. Temesgen. 2013.  Small area estimation of county-level forest attributes using ground data and remote sensed auxiliary information.  Forest Science. 59(2):1-13.

Ver Hoef J. and H. Temesgen. 2013. A comparison of the spatial linear model to nearest neighbor (k-NN) methods for forestry applications. PLOS ONE. (3):1-11.

Eskelson, B.N.I., P. D. Anderson, and H. Temesgen. 2013.  Monitoring of relative humidity in headwater forests using correlation with air temperature. Northwest Science. 87(1): 40-58.

2012

Strunk, J., H. Temesgen, and H.E. Andersen. 2012. Effects of LIDAR Pulse Density and Sample Size on the Precision of Selected Forest Inventory Attributes. Canadian Journal of Remote Sensing. 38(5): 644-654.

Packalen, P., Temesgen, H., and Maltamo, M. 2012. Variable Selection Strategies for Nearest Neighbor Imputation in Remote Sensing Based Forest Inventory. Canadian Journal of Remote Sensing. 38(5): 557-569.

Andersen, H. E., J. Strunk, and H. Temesgen. 2012. Using multi-level remote sensing and ground data to estimate forest biomass resources in remote regions: a case study in boreal forests of interior Alaska. Canadian Journal of Remote Sensing. 37: 596-611.

Haxton, Z., H. Temesgen, and Marquardt. 2012. Evaluation of n-tree distance sampling for inventory of headwater riparian forests of western Oregon. Western Journal of Applied Forestry. 27:109-117

Groom, J.D., Hann, D.W., and Temesgen, H. 2012. Evaluation of mixed-effects models for predicting Douglas-fir mortality. Forest Ecology and Management. 276: 139-145.

Eskelson, B.N.I., Hagar, J.C., and H. Temesgen. 2012. Estimation of snag density and snag quality attributes in western Washington and Oregon. Forest Ecology and Management. 272: 26–34.

Marquardt, T., H. Temesgen, B.N.I. Eskelson, and P. Anderson. 2012. Evaluation of sampling methods to quantify abundance of hardwoods and snags within conifer dominated riparian zones.  Annals of Forest Science.

Barrett, T.M., G. Latta, P. E. Hennon, B. N.I. Eskelson, and H. Temesgen. 2012. Modeling host-parasite distributions under changing climate Tsuga heterophylla and Arceuthobium tsugense in Alaska. Canadian Journal of Forest research. 42: 642-656.

2011

Temesgen, H., B.N.I Eskelson, T. Maness, D. Adams, and H. Burkhart. 2011. Teaching in Contemporary Forestry Resources Curricula: Applications to the Teaching of Forest measurements. Journal of Forestry. 109 (7):371-377.

Andersen, H. E., J. Strunk, and H. Temesgen. 2011. Using multi-level remote sensing and ground data to estimate forest biomass resources in remote regions: a case study in boreal forests of interior Alaska. Canadian Journal of Remote Sensing. 37: 596-611.

Andersen, H. E., J. Strunk, and H. Temesgen. 2011. Using airborne lidar as a sampling tool for estimating forest biomass resources in the upper Tanana Valley of interior Alaska. Western Journal of Applied Forestry. 26: 157-164.

Eskelson, B.N.I., P. D. Anderson, J. Hagar, and H. Temesgen. 2011. Geostatistical modeling of riparian forest microclimate and its implications for sampling. Canadian Journal of Forest Research. 41:974-985.

Eskelson, B.N.I., L. Madison, J. Hagar, and H. Temesgen.  Estimating riparian understory vegetation cover with beta regression and copula models. Forest Science.  57: 212-221.

Goerndt, M. E., V. J. Monleon, and H. Temesgen. 2011. A comparison of small-area estimation techniques to estimate selected stand attributes using LiDAR-derived auxiliary variables. Canadian Journal of Forest Research. 41: 1189-1201.

Temesgen, H., V.J. Monleon, A. R. Weiskittel, and D.S. Wilson. 2011. Sampling strategies for efficient estimation of tree foliage biomass.  Forest Science. 57: 153-163.

2010

Goerndt, M.E., V.J. Monleon, and H. Temesgen. 2010.  Relating forest attributes with area- and tree-based LiDAR metrics for western Oregon. Western Journal of Applied Forestry. 25: 105-111.

Marquardt, T, H. Temesgen and P. Anderson. 2010. Accuracy and suitability of selected sampling methods within conifer dominated riparian zones. Forest Ecology and Management. 260: 313-320.

Latta, G., H. Temesgen, D.A. Adams, and T. Barrett. 2010. Analysis of potential impacts of climate change on forests of the United States Pacific Northwest. Forest Ecology and Management. 259: 720-729.

Selected Publications: 

2009

Eskelson, B.N.I., H. Temesgen, and T.M. Barrett. 2009. Imputing Mean Annual Change and Estimating Current Forest Attributes. Silva Fennica. 43:649-658.

Eskelson, B.N.I, H. Temesgen, and T. Barrett. 2009. Estimating cavity tree and snag abundance using negative binomial regression models and nearest neighbor imputation methods. Canadian Journal of Forest Research. 39: 1749-1765.

Latta, G., Temesgen, H., and T. Barrett. 2009. Mapping and imputing potential productivity of Pacific Northwest Forests using climate variables. Can. J. For. Res. 39: 1197-1207.  

Eskelson, B.N.I, H. Temesgen, V. LeMay, T. Barrett,  A. Hudak, and N. Crookston. 2009. The roles of nearest neighbor methods in imputing missing data in forest inventory and monitoring databases. Scand. J. For. Res. 24:193-205.

Garber, S.M., Temesgen, H., V.J. Monleon, and D.W. Hann. 2009.  Effects of height imputation strategies on stand volume estimation. Can. J. For. Res. 39: 694-703.

Eskelson, B.N.I, H. Temesgen, and T. Barrett.  2009. Estimating current forest attributes from paneled inventory data using plot-level imputation: a study from the Pacific Northwest. For. Sci. 55 (1): 64-71.

Weiskittel, A. R., P.J. Gould, and H. Temesgen. 2009. Sources of variation in the self-thinning boundary line for three ecologically-distinct species. For. Sci. 55 (1): 84-93.

2008

Temesgen, H., T. Barrett, and G. Latta. 2008. Estimating Cavity Tree Abundance Using Nearest Neighbor Imputation Methods for western Oregon and Washington Forests.  Silva Fennica. 42(3): 337-354.

Eskelson, B.N.I, H. Temesgen, and T.M. Barrett.  2008. Comparison of Stratified and Non-stratified Most Similar Neighbour Approaches for Estimating Stand Tables. Forestry: Int. J. For. Res. 81: 125-134.

Temesgen, H., V.J. Monleon, and D.W. Hann.  2008. Analysis of nonlinear tree height prediction strategies for Douglas-fir forests. Can. J. For. Res. 38: 553-565.

Younger, N., H. Temesgen, and S. Garber. 2008. Taper and volume responses to sulfur treatment in coastal Oregon Douglas fir stands. West. J. Appl. For.  23(3): 142-148.

Weiskittel, A.R, H. Temesgen, D.S. Wilson, and D. A. Maguire.  2008. Sources of within- and between-stand variability in specific leaf area of three ecologically distinct conifer species.  Annals of Forest Sciences 65, 103-113.

2007

Temesgen, H., M.E. Goerndt, G. P. Johnson, D.M. Adams, and R.A. Monserud. 2007. Forest measurement and biometrics in forest management: status and future needs of the Pacific Northwest USA. Journal of Forestry. 105: 233-238.

Temesgen, H., D.W. Hann, and V.J. Monleon. 2007. Regional height-diameter equations for major tree species of southwest Oregon. West. J. Appl. For.  22(3): 213-219.

2006

Temesgen, H, P.J. Martin, D.A. Maguire, J.C. Tappeiner. 2006. Quantifying effects of different levels of dispersed canopy tree retention on stocking and yield of the regeneration cohort. For. Ecol. & Manage.  235: 44-53.

Temesgen, H. and A.R. Weiskittel. 2006. Leaf mass per area relationships across light gradients in hybrid spruce crowns. Trees: Structure & Function. 20: 522-530.  

2005

Temesgen, H. and S.J. Mitchell. 2005.  An individual tree mortality model for South-eastern British Columbia.  West. J. Appl. For.  20(2): 101-109.

LeMay, V. and H. Temesgen. 2005. Connecting inventory information sources for landscape level analyses.   J. Forest Biometry, Modeling and Information Sciences. 1: 37-49.

LeMay, V.  and Temesgen, H.  2005.  Comparison of nearest neighbor methods for estimating basal area and stems per ha using aerial auxiliary variables.  For. Sci. 51 (2): 109-119.

Temesgen, H., V.M. LeMay, and S. J. Mitchell. 2005. Tree crown ratio models for multi-species and multi-layered stands.  For. Chron. 81(1): 133-141.

2004

Boisvenue, C., H. Temesgen, and P.L. Marshall. 2004. Selecting a small tree height growth model for mixed-species stands in the Southern Interior of British Columbia, Canada. For. Ecol. & Manage. 177: 301-312.

Temesgen, H. and K. v. Gadow. 2004. Generalized height-diameter models for major tree species in complex stands of interior British Columbia, Canada. Europ. J. For. Res. 123(1): 45-51.

Hassani, B., T., P.L. Marshall, V.M. LeMay, Temesgen, H., and Zumrawi. 2004. Regeneration imputation models for complex stands of southeastern British Columbia. For. Chron. 80(2): 271-278.

2003

Temesgen, H., V. LeMay, and I.R. Cameron. 2003. Bivariate distribution functions for predicting twig leaf area within hybrid spruce crowns. Can. J. For. Res. 33: 2044-2051.

Temesgen, H. 2003. Estimating tree-lists from aerial information: a comparison of a parametric and most similar neighbor approaches. Scand. J. For. Res. 18:279-288.

Temesgen, H. 2003. Evaluation of sampling alternatives to quantify tree leaf area. Can. J. For. Res. 33: 82-95. (Abstract)

Temesgen, H., V.M. LeMay, P.L. Marshall, and K. Froese. 2003. Imputing tree-lists from aerial attributes for complex stands of British Columbia. For. Ecol. & Manage. 177: 277-285.

Rowan, C.A., S.J. Mitchell and H. Temesgen. 2003. Effectiveness of wind firming treatments in Coastal British Columbia. Forestry. 76: 55-65.

pre 2003

Mitchell, S.J., H. Temesgen and Y.P. Kulis. 2001. Empirical modelling of cutblock edge windthrow risk on Vancouver Island, Canada, using stand level information. For. Ecol. & Manage. 154: 117-130.

Howard, A.F. and H. Temesgen. 1997. Potential financial returns from alternative silvicultural prescriptions in second-growth stands of coastal British Columbia. Can. J. For. Res. 27:1483-1495.

Recent Theses

Strunk, Jacob. 2012. Estimation of Modeling of Selected Forest Metrics with Lidar and Landsat. PhD. Oregon State University.

Gagliasso, Donald. 2012. Evaluating the Accuracy of Imputed Forest Biomass Estimates at the Project Level. MS. Oregon State University.

Goerndt, Michael. 2010. Comparison and analysis of small area estimation methods for improving estimates of selected forest attributes. PhD. Oregon State University.

Haxton, Zane. 2010. An examination of several methods of quantifying forest structure in headwater riparian forests of western Oregon. MS. Oregon State University.

Marquardt, Theresa. 2010. Accuracy and suitability of several stand sampling methods in riparian zones. MS. Oregon State University.

Eskelson, Bianca. 2008. Examination of imputation methods to estimate status and change of forest attributes from paneled inventory data. PhD. Oregon State University.

Drake, Timothy. 2008. Empirical modeling of windthrow occurrence in streamside buffer strips. MS. Oregon State University.