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s2k_leaf_voc SAFARI 2000 Leaf-Level VOC Emissions, Maun, Botswana, Wet Season 2001 JAMES, A.E.; OWEN, S.M.; HEWITT, C.N.; GREENBERG, J.P.; GUENTHER, A.B.; OTTER, L.; VEENENDAAL, E.M.; MANTLANA, K.B. SAFARI 2000 Leaf-Level VOC Emissions, Maun, Botswana, Wet Season 2001 2004 Oak Ridge, Tennessee, U.S.A. Oak Ridge National Laboratory Distributed Active Archive Center Online Files doi:10.3334/ORNLDAAC/763 763

ABSTRACT: Biogenic volatile organic compounds (VOCs) comprise a significant proportion of trace gases in the atmospheric environment and play an important role in the formation of secondary air pollutants. Emissions of monoterpenes from vegetation were studied at adjacent sites in Botswana as part of the SAFARI 2000 (Southern African Regional Science Initiative). Using a LI-COR leaf cuvette, VOC emissions were measured from the dominant tree species (Colophospermum mopane) and other vegetation near Maun, Botswana. The aims of this work were to: (1) determine the VOC emission potential of C. mopane; (2) investigate any differences in VOC emission potential between the tall and short C. mopane morphology types; (3) investigate environmental controls of VOC emissions from C. mopane; and (4) screen other non-dominant vegetation for high VOC emission potential. The data are contained in an ASCII text file (maun_leaf-level_voc.csv) in comma-delimited format with column headers. The data file contains leaf-level VOC emission rates for C. mopane and other plant species growing near Maun, Botswana recorded under different types of experiments associated with the measurements (e.g., preliminary light dependency, emission potential, tall/short and water potential, light dependency, screening). In addition, the data file contains physical measurements, such as leaf area and dry biomass, which are used in calculating leaf-level emissions rates. Environmental parameters in the leaf cuvette (PAR, temperature, relative humidity, and CO2 concentration) are also recorded. All measurements were made during the wet season campaign (February) of 2001.

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Oak Ridge Tennessee 37831-6407 USA EARTH SCIENCE ATMOSPHERE AIR QUALITY VOLATILE ORGANIC COMPOUNDS EARTH SCIENCE ATMOSPHERE ATMOSPHERIC PRESSURE ATMOSPHERIC PRESSURE MEASUREMENTS EARTH SCIENCE BIOSPHERE VEGETATION BIOMASS EARTH SCIENCE BIOSPHERE VEGETATION LEAF CHARACTERISTICS EARTH SCIENCE BIOSPHERE VEGETATION PHOTOSYNTHETICALLY ACTIVE RADIATION LICOR GAS EXCHANGE SYSTEM FIELD INVESTIGATION EARTH SCIENCE BALANCE FIELD INVESTIGATION EARTH SCIENCE VOC PAR EOSDIS VEGETATION SAFARI 2000 MONOTERPENES AIR PRESSURE LEAF CHEMISTRY BIOMASS EMISSIONS VOC EMISSION POTENTIAL VOLATILE ORGANIC COMPOUNDS PHOTOSYNTHETICALLY ACTIVE RADATION BIOGENIC VOLATILE ORGANIC COMPOUNDS GET DATA http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=763 VIEW RELATED INFORMATION https://daac.ornl.gov//S2K/guides/leaf_voc_emissions.html SAFARI 2000 Leaf-Level VOC Emissions, Maun, Botswana, Wet Season 2001 USA/NASA ENGLISH GCMD CEOS IDN DIF VERSION 9.0