SAFARI 2000 LEAF AREA INDEX AND CANOPY STRUCTURE, KALAHARI TRANSECT, 1999-2000Entry ID: s2k_kt_lai_trac
Abstract: Data from the Tracing Radiation and Architecture of Canopies (TRAC) instrument were collected at five sites along the International Geosphere-Biosphere Programme (IGBP) Kalahari Transect, including Mongu in Zambia and Pandamatenga, Maun, Okwa River Crossing, and Tshane in Botswana, during the 2000 wet season field campaign (March-April) of SAFARI 2000. At the Mongu site, TRAC measurements began in ... August of 1999 and continued beyond the 2000 wet season field campaign, about every month for the rest of 2000.The TRAC instrument contains pyranometers that are sensitive to photosynthetically active radiation (PAR) at 400-700 nm. The TRAC measures the PAR flux transmitted through the overstory canopy continuously at 32 Hz. The parameters derived from the TRAC instrument include estimates of plant or leaf area index (PAI, LAI), overstory gap fraction, and clumping index.At each site, the TRAC instrument was carried along three parallel transects, each 750 m long and spaced 250 m apart. Measurements were made every 25 m along the transects. The length and spacing of the transects were chosen to sample an area large enough to be representative of a 1 km MODIS pixel.The data files are stored as ASCII text files, one file per transect, site, and date, with column headers. There are also summary files (ASCII text) containing mean values of each derived parameter over an entire transect for each collection date.
Data Set Citation
Dataset Originator/Creator: MUKELABAI,M.M.PRIVETTE, J.L.
Dataset Title: SAFARI 2000 LEAF AREA INDEX AND CANOPY STRUCTURE, KALAHARI TRANSECT, 1999-2000
Dataset Release Date: 2005
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/771Online Resource: http://mercury.ornl.gov/ornldaac/send/query?term2=771&term2attribut...
Start Date: 1999-08-10Stop Date: 2000-12-19
ISO Topic Category
Data Set Progress
Role: TECHNICAL CONTACT
Email: muke_mukufute at yahoo.com
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: 2005-02-07
Last DIF Revision Date: 2009-02-10