Use of Large-Footprint Scanning Airborne Lidar To Estimate Forest Stand Characteristics in the Western Cascades of Oregon

Use of Large-Footprint Scanning Airborne Lidar To Estimate Forest Stand Characteristics in the... A scanning lidar, a relatively new type of sensor which explicitly measures canopy height, was used to measure structure of conifer forests in the Pacific Northwest. SLICER (Scanning Lidar Imager of Canopies by Echo Recovery), an airborne pulsed laser developed by NASA which scans a swath of five 10-m diameter footprints along the aircraft’s flightpath, captures the power of the reflected laser pulse as a function of height from the top of the canopy to the ground. Ground measurements of forest stand structure were collected on 26 plots with coincident SLICER data. Height, basal area, total biomass, and leaf biomass as estimated from field data could be predicted from SLICER-derived metrics with r 2 values of 0.95, 0.96, 0.96, and 0.84, respectively. These relationships were strong up to a height of 52 m, basal area of 132 m 2 /ha and total biomass of 1300 Mg/ha. In light of these strong relationships, large-footprint, airborne scanning lidar shows promise for characterizing stand structure for management and research purposes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Remote Sensing of Environment Elsevier

Use of Large-Footprint Scanning Airborne Lidar To Estimate Forest Stand Characteristics in the Western Cascades of Oregon

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Publisher
Elsevier
Copyright
Copyright © 1999 Elsevier Science Inc.
ISSN
0034-4257
DOI
10.1016/S0034-4257(98)00091-1
Publisher site
See Article on Publisher Site

Abstract

A scanning lidar, a relatively new type of sensor which explicitly measures canopy height, was used to measure structure of conifer forests in the Pacific Northwest. SLICER (Scanning Lidar Imager of Canopies by Echo Recovery), an airborne pulsed laser developed by NASA which scans a swath of five 10-m diameter footprints along the aircraft’s flightpath, captures the power of the reflected laser pulse as a function of height from the top of the canopy to the ground. Ground measurements of forest stand structure were collected on 26 plots with coincident SLICER data. Height, basal area, total biomass, and leaf biomass as estimated from field data could be predicted from SLICER-derived metrics with r 2 values of 0.95, 0.96, 0.96, and 0.84, respectively. These relationships were strong up to a height of 52 m, basal area of 132 m 2 /ha and total biomass of 1300 Mg/ha. In light of these strong relationships, large-footprint, airborne scanning lidar shows promise for characterizing stand structure for management and research purposes.

Journal

Remote Sensing of EnvironmentElsevier

Published: Mar 1, 1999

References

  • Estimation of tree heights and stand volume using an airborne lidar system
    Nilsson, M.
  • Canopy arthropod communities in relation to forest age and alternative harvest practices in western Oregon
    Schowalter, T.D.
  • Long-Term Ecological Research in the United States
  • Remote sensing of forest canopies
    Weishampel, J.F.; Ranson, K.J.; Harding, D.J.
  • Comparison of laser and field measurements of vegetation height and canopy cover
    Weltz, M.A.; Ritchie, J.C.; Fox, H.D.

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