BOREAS TE-06 MULTIBAND VEGETATION IMAGER DATAEntry ID: BOREAS_TE6MLTVG
Abstract: A newly developed ground-based canopy imaging system called an MVI was tested and used by the BOREAS TE-06 team to collect measurements of the canopy gap fraction (sky fraction), canopy gap-size distribution (size and frequency of gaps between foliage in canopy), branch architecture, and leaf angle distribution (fraction of leaf area in specific leaf inclination classes assuming azimuthal ... symmetry). Measurements of the canopy gap-size distribution are used to derive canopy clumping indices that can be used to adjust indirect LAI measurements made in nonrandom forests. These clumping factors will also help to describe the radiation penetration in clumped canopies more accurately by allowing for simple adjustments to Beer's law. Measurements of the above quantities were obtained at BOREAS NSA OJP site in IFC-2 in 1994, at the SSA OA in July 1995, and at the SSA OBS and SSA OA sites in IFC-2 in 1996. Modeling studies were also performed to further validate MVI measurements and to gain a more complete understanding of boreal forest canopy architecture. By using MVI measurements and Monte Carlo simulations, clumping indices as a function of zenith angle were derived for the three main boreal species studied during BOREAS.
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Data Set Citation
Dataset Originator/Creator: KUCHARIK, C.J.NORMAN, J.M.
Dataset Title: BOREAS TE-06 MULTIBAND VEGETATION IMAGER DATA
Dataset Release Date: 1999
Dataset Release Place: Oak Ridge, Tennessee, U.S.A.
Dataset Publisher: Oak Ridge National Laboratory Distributed Active Archive Center
Data Presentation Form: Online Files
Dataset DOI: doi:10.3334/ORNLDAAC/331Online Resource: http://mercury.ornl.gov/ornldaac/send/query?term2=331&term2attribut...
Start Date: 1994-07-26Stop Date: 1996-07-26
ISO Topic Category
Data Set Progress
Role: TECHNICAL CONTACT
Phone: (608) 262-0415
Fax: (608) 265-2595
Email: kucharik at bob.soils.wisc.edu
University of Wisconsin-Madison Dept. of Soil Science 1525 Observatory Drive
Province or State: WI
Postal Code: 53706
Role: DIF AUTHOR
Phone: (865) 574-7447
Email: uso at daac.ornl.gov
ORNL DAAC User Services Office Oak Ridge National Laboratory
City: Oak Ridge
Province or State: TN
Postal Code: 37831-6407
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 1999-01-30
Last DIF Revision Date: 2011-08-22