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OLS Field Name OLS Field Data
Main Title Evaluation of Forest Canopy Models for Estimating Isoprene Emissions.
Author Lamb, B. ; Allwine, E. ; Dilts, S. ; Westberg, H. ; Pierce, T. ;
CORP Author Washington State Univ., Pullman. Dept. of Civil and Environmental Engineering. ;National Oceanic and Atmospheric Administration, Oak Ridge, TN. Atmospheric Turbulence and Diffusion Div. ;National Center for Atmospheric Research, Boulder, CO.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher 1996
Year Published 1996
Report Number EPA/600/A-96/105;
Stock Number PB97-123111
Additional Subjects Natural emissions ; Air pollution sources ; Photosynthesis ; Isoprene ; Hydrocarbons ; Biomass ; Canopies(Vegetation) ; Leaves(Botany) ; Deciduous trees ; Solar radiation ; Respiration ; Transpiration ; Monitoring ; Estimating ; Air-biosphere interactions ; Uncertainty ; Mathematical models ; Biogenic emissions
Library Call Number Additional Info Location Last
NTIS  PB97-123111 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 02/22/1997
Collation 12p
Abstract The paper gives results of an evaluation of forest canopy models for estimating isoprene emissions. Three approaches are compared for determining the leaf microclimate as input to biogenic emission inventory systems: (1) no-canopy effects, (2) a simple scaling model based on empirical vertical scaling relationships and a leaf energy balance, and (3) a numerical canopy model that explicitly accounts for leaf-sun geometries, photosynthesis, respiration, and transpiration. Model-to-model comparisons and sensitivity analyses are presented to highlight the uncertainties involved in modeling leaf-level biogenic hydrocarbon emissions. A preliminary evaluation of these models is also presented based on measured isoprene fluxes from a southeastern deciduous forest.
Supplementary Notes Presented at the Air and Waste Management Association Conference on Regional Photochemical Measurement and Modeling, San Diego, CA., November 8-12, 1993. Prepared in cooperation with National Oceanic and Atmospheric Administration, Oak Ridge, TN. Atmospheric Turbulence and Diffusion Div. and National Center for Atmospheric Research, Boulder, CO.
Highlights Notes %AUT:C. /Geron ;D. /Baldocchi ;A. /Guenther ;L. /Klinger ;P. /Harley ;P. /Zimmerman
Category Codes 68D; 48D; 99F
NTIS Prices PC A03/MF A01
Primary Description 600/13
Document Type NT
Cataloging Source NTIS/MT
Control Number 703402480
Origin NTIS
Type CAT