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s2k_canopy_struc SAFARI 2000 Canopy Structural Measurements, Kalahari Transect, Wet Season 2001 BOWYER, P.; TRODD, N.M.; DANSON, F.M. SAFARI 2000 Canopy Structural Measurements, Kalahari Transect, Wet Season 2001 2005 Oak Ridge, Tennessee, U.S.A. Oak Ridge National Laboratory Distributed Active Archive Center Online Files doi:10.3334/ORNLDAAC/768 768

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.

2001-02-28 2001-03-08 COMPLETE -25.75 -24.16 21.83 22.3294 ESIP Earth Science Information Partners Program EOSDIS Earth Observing System Data Information System TECHNICAL CONTACT ORNL DAAC User Services ORNL DAAC USER SERVICES OFFICE OAK RIDGE NATIONAL LABORATORY OAK RIDGE, TENNESSEE 37831 USA DIF AUTHOR ORNL DAAC User Services ornldaac@ornl.gov (865) 241-3952 (865) 574-4665

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Oak Ridge Tennessee 37831-6407 USA 2005-02-07 ORNL_DAAC THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) http://daac.ornl.gov/ 768 DATA CENTER CONTACT ORNL DAAC USER SERVICES ornldaac@ornl.gov +1(865)241-3952 +1(865)574-4665

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Oak Ridge Tennessee 37831-6407 USA EARTH SCIENCE BIOSPHERE ECOSYSTEMS TERRESTRIAL ECOSYSTEMS EARTH SCIENCE BIOSPHERE VEGETATION CANOPY CHARACTERISTICS EARTH SCIENCE BIOSPHERE VEGETATION LEAF CHARACTERISTICS EARTH SCIENCE BIOSPHERE VEGETATION PHOTOSYNTHETICALLY ACTIVE RADIATION LICOR PLANT CANOPY ANALYZER FIELD INVESTIGATION EARTH SCIENCE CLINOMETERS FIELD INVESTIGATION EARTH SCIENCE LAI CANOPY EOSDIS SAVANNAS LEAF ANGLE TREE COVER VEGETATION SAFARI 2000 LEAF AREA INDEX KALAHARI TRANSECT GET DATA http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=768 VIEW RELATED INFORMATION https://daac.ornl.gov//S2K/guides/kt_canopy_structure.html SAFARI 2000 Canopy Structural Measurements, Kalahari Transect, Wet Season 2001 USA/NASA ENGLISH GCMD CEOS IDN DIF VERSION 9.0