SAFARI 2000 CANOPY STRUCTURAL MEASUREMENTS, KALAHARI TRANSECT, WET SEASON 2001Entry ID: s2k_canopy_struc
Abstract: This data set contains leaf area index (LAI), leaf inclination angle, and canopy dimension data from study sites along the Kalahari Transect in southwest Botswana. The data were collected during the 2001 wet season field campaign of the SAFARI 2000 at a total of seven plots of 200 x 150 meter dimensions; two plots each at Tshane and Mabuasehube, and three plots at Tsabong. The data set consists of ... measurements of leaf angle for plot dominant woody species, LAI calculated from overstory and understory photosynthetically active radiation (PAR) measurements, and canopy dimension data (i. e., crown height, crown width, and height to crown) for grass and woody vegetation, for use in the parameterization of plant canopy reflectance models.Measurements of LAI were made with a plant canopy analyzer which records direct and diffuse PAR at the top of the canopy using a beam fraction sensor. PAR beneath the canopy was measured simultaneously with a one-meter long probe held horizontally beneath the canopy. Leaf inclination angle measurements were made using a clinometer. Measurements of tree height, crown height, height-to-crown, and crown width were made for 10 to 20 individual trees of the dominant species at each field plot using a tape measure or simple trigonometry, and calculations based on these data.The data files are stored as ASCII table files, in comma-separated-value (.csv) format, with column headers. Photographs (.jpg) are provided of each plot to provide an idea of site conditions. The photographs can be viewed on the S2K Photo Gallery pages.
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Data Set Citation
Dataset Originator/Creator: BOWYER, P.DANSON, F.M.TRODD, N.M.
Dataset Title: SAFARI 2000 CANOPY STRUCTURAL MEASUREMENTS, KALAHARI TRANSECT, WET SEASON 2001
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/768Online Resource: http://mercury.ornl.gov/ornldaac/send/query?term2=768&term2attribut...
Start Date: 2001-02-28Stop Date: 2001-03-08
ISO Topic Category
Distribution Media: Electronic/Download
Distribution Size: 907KB
Distribution Format: zip
Role: TECHNICAL CONTACT
Email: atkinson.dennis at epa.gov
US EPA Office of Air Quality Planning and Standards (OAQPS) Technology Transfer Network Mail Code D143-02
City: Research Triangle Park
Province or State: NC
Postal Code: 27711
Role: SERF AUTHOR
Phone: (301) 614-6898
Email: Tyler.B.Stevens at nasa.gov
NASA Goddard Space Flight Center Global Change Master Directory
Province or State: MD
Postal Code: 20771
Creation and Review Dates