@article{boyina_catts_smith_devine_2017, title={Hydrologic Web-Mapping Application of Hofmann Forest with GIS Approach: Case Study}, volume={22}, ISSN={["1943-5584"]}, DOI={10.1061/(asce)he.1943-5584.0001285}, abstractNote={AbstractIn this study, a hydrologic web-mapping application for North Carolina State University’s Hofmann Forest is developed using geospatial information science (GIS) resources, measured point precipitation, and radar precipitation data obtained from the National Weather Service (NWS). The development of such a web application will enhance the visualization and manipulation techniques for hydrologic modeling. This paper’s main focus is on the various steps involved in the development of the web-mapping application and the hydrologic analysis. The two different interpolation methods, one a deterministic method, inverse distance weighting (IDW), and another, a probabilistic method, Kriging, are used to obtain NWS precipitation estimates at 14 forest rain gauge locations. The eventual goal of this project is to use the rain gauge data from the Hofmann Forest to calibrate the spatial pattern of daily radar estimates for use in research and forest operations; however, the accuracy of radar estimates has yet ...}, number={5}, journal={JOURNAL OF HYDROLOGIC ENGINEERING}, author={Boyina, Ramana Prasad V. and Catts, Glenn P. and Smith, Charlynne T. and Devine, Hugh A.}, year={2017}, month={May} }
 @article{mohan_silva_klauberg_jat_catts_cardil_hudak_dia_2017, title={Individual Tree Detection from Unmanned Aerial Vehicle (UAV) Derived Canopy Height Model in an Open Canopy Mixed Conifer Forest}, volume={8}, ISSN={["1999-4907"]}, DOI={10.3390/f8090340}, abstractNote={Advances in Unmanned Aerial Vehicle (UAV) technology and data processing capabilities have made it feasible to obtain high-resolution imagery and three dimensional (3D) data which can be used for forest monitoring and assessing tree attributes. This study evaluates the applicability of low consumer grade cameras attached to UAVs and structure-from-motion (SfM) algorithm for automatic individual tree detection (ITD) using a local-maxima based algorithm on UAV-derived Canopy Height Models (CHMs). This study was conducted in a private forest at Cache Creek located east of Jackson city, Wyoming. Based on the UAV-imagery, we allocated 30 field plots of 20 m × 20 m. For each plot, the number of trees was counted manually using the UAV-derived orthomosaic for reference. A total of 367 reference trees were counted as part of this study and the algorithm detected 312 trees resulting in an accuracy higher than 85% (F-score of 0.86). Overall, the algorithm missed 55 trees (omission errors), and falsely detected 46 trees (commission errors) resulting in a total count of 358 trees. We further determined the impact of fixed tree window sizes (FWS) and fixed smoothing window sizes (SWS) on the ITD accuracy, and detected an inverse relationship between tree density and FWS. From our results, it can be concluded that ITD can be performed with an acceptable accuracy (F > 0.80) from UAV-derived CHMs in an open canopy forest, and has the potential to supplement future research directed towards estimation of above ground biomass and stem volume from UAV-imagery.}, number={9}, journal={FORESTS}, author={Mohan, Midhun and Silva, Carlos Alberto and Klauberg, Carine and Jat, Prahlad and Catts, Glenn and Cardil, Adrian and Hudak, Andrew Thomas and Dia, Mahendra}, year={2017}, month={Sep} }
 @article{roise_harnish_mohan_scolforo_chung_kanieski_catts_mccarter_posse_shen_2016, title={Valuation and production possibilities on a working forest using multi-objective programming, Woodstock, timber NPV, and carbon storage and sequestration}, volume={31}, ISSN={["1651-1891"]}, DOI={10.1080/02827581.2016.1220617}, abstractNote={ABSTRACT This study analyzes the trade-off between net present value (NPV) of timber resources, and carbon sequestration and storage for a working forest, the Hofmann Forest in North Carolina, USA. Multi-objective optimization is used to determine the production possibility curves showing the relationship between NPV and carbon. We then perform a sensitivity analysis to explore alternative management strategies. For carbon yields we used aboveground pools: branches, leaves, tops and bole as estimated by the Forest Vegetation Simulator (FVS) and LOBDSS using the California Carbon Market Protocols, including product carbon. Timber yields of sawtimber, chip-n-saw and pulpwood were estimated by LOBDSS for planted stands less than 49 years of age, and FVS was used for all natural stands and planted stands 49 years and over. Our results reveal that NPV opportunity costs associated with increasing carbon sequestration at Hofmann Forest are less than the current California carbon market price.}, number={7}, journal={SCANDINAVIAN JOURNAL OF FOREST RESEARCH}, author={Roise, J. P. and Harnish, K. and Mohan, M. and Scolforo, H. and Chung, J. and Kanieski, B. and Catts, G. P. and McCarter, J. B. and Posse, J. and Shen, T.}, year={2016}, pages={674–680} }
 @book{roise_catts_hazel_a. hobbs a._hopkins_2013, title={Balancing biomass harvesting and drying tactics with delivered payment practice}, journal={Technical Report- Not held in TRLN member libraries}, institution={Greenville, S.C.: US Endowment for Forestry and Community}, author={Roise, J. P. and Catts, G. and Hazel, D. and A. Hobbs A. and Hopkins, C.}, year={2013} }
 @article{leung_catts_2013, title={The joy of bioresources: Sustainable forest-recreation connections}, volume={8}, DOI={10.15376/biores.8.1.1-2}, abstractNote={Forests have long-standing relationships with humanity beyond the material aspects. Recreation is an essential human need, and forests possess intrinsic values to support such a need in direct, authentic, and emotional ways. Quality recreation experiences can lead to a greater appreciation of bioresources and deeper support for forest conservation. The forest-recreation connections should be celebrated and sustained in this age of rapid social, environmental, and technological changes.}, number={1}, journal={BioResources}, author={Leung, Yu-Fai and Catts, G.}, year={2013}, pages={1–2} }
 @inproceedings{roise_hannum_catts_2009, title={Machine system for harvesting small diameter woody biomass and reducing hazardous fuels: A developmental report}, DOI={10.13031/2013.28860}, abstractNote={This is a report on field testing and refinement of the first generation FECON Bio-Harvester, designed to swath harvest small diameter woody biomass of mixed species and size classes. The machine system consisted of a unique harvesting head, a FECON FTX440, a silage dump wagon and roll-on-roll-off bins. The cutting system consists of a rotating drum with cutting tools, followed by an auger and a material fan which blew the harvested biomass into the silage dump wagon. The harvesting head is PTO driven. The machine system was tests in natural forest understory, between rows of pine plantations and in a Pocosin ecosystem. The sites had 6 to 20 green tons per acre of small diameter woody biomass. Below are the resulting harvesting productivity and cost.}, booktitle={2009 Bioenergy Engineering Conference}, author={Roise, Joseph and Hannum, L. C. and Catts, G. P.}, year={2009} }
 @article{mckeand_abt_allen_li_catts_2006, title={What are the best loblolly pine genotypes worth to landowners?}, volume={104}, number={7}, journal={Journal of Forestry}, author={McKeand, S. E. and Abt, R. C. and Allen, H. L. and Li, B. L. and Catts, G. P.}, year={2006}, pages={352–358} }