Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Mark NelsonSean HealeyW. Keith MoserMark HansenWarren CohenMark Hatfield; Nancy Thomas; Jeff Masek
    Date: 2009
    Source: In: McWilliams, Will; Moisen, Gretchen; Czaplewski, Ray, comps. Forest Inventory and Analysis (FIA) Symposium 2008; October 21-23, 2008; Park City, UT. Proc. RMRS-P-56CD. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 11 p.
    Publication Series: Proceedings (P)
    Station: Rocky Mountain Research Station
    PDF: View PDF  (720 B)

    Description

    The North American Forest Dynamics (NAFD) Program is assessing disturbance and regrowth in the forests of the continent. These forest dynamics are interpreted from per-pixel estimates of forest biomass, which are produced for a time series of Landsat 5 Thematic Mapper (TM) and Landsat 7 Enhanced TM Plus images. Image data are combined with sample plot data from the Forest Inventory and Analysis (FIA) program using Random Forests, a tree-based estimation method implemented here in the R statistical environment. The NAFD approach is based on a sample of image Path/Rows, resulting in most images being disjunct from and independent of other images in the sample. Increases in sample intensity and needs for assessing forest dynamics over geographic extents larger than a single image are leading to increased frequency of adjacent, overlapping images in the sample. We assessed the consistency of estimates of forest biomass and classification of forest/nonforest in southern Missouri, USA, across space and time, for adjacent images in Path 25/Row 34 and Path 24/Row 34, and for coincident images in Path 25/Row 34 acquired in 2000 and 2007. Results were consistent across space and time, implying consistency of both Landsat and FIA data, and supporting the NAFD image sample strategy and subsequent augmentation with overlapping images.

    Publication Notes

    • You may send email to rmrspubrequest@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Nelson, Mark; Healey, Sean; Moser, W. Keith; Hansen, Mark; Cohen, Warren; Hatfield, Mark; Thomas, Nancy; Masek, Jeff. 2009. Analyzing Landsat time-series data across adjacent path/rows and across multiple cycles of FIA: Lessons learned in southern Missouri. In: McWilliams, Will; Moisen, Gretchen; Czaplewski, Ray, comps. Forest Inventory and Analysis (FIA) Symposium 2008; October 21-23, 2008; Park City, UT. Proc. RMRS-P-56CD. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 11 p.

    Keywords

    North American Forest Dynamics, NAFD, Landsat, consistency analyses, forest inventory, FIA

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/33340