Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Biogenic Hydrocarbon Emission Inventory for the U.S.A. Using a Simple Forest Canopy Model.
Author Lamb, B. ; Gay, D. ; Westburg, H. ; Pierce., T. ;
CORP Author Washington State Univ., Pullman. Lab. for Atmospheric Research. ;National Oceanic and Atmospheric Administration, Silver Spring, MD. Atmospheric Sciences Modeling Div.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher c6 Jan 93
Year Published 1993
Report Number EPA-R-818572-01-0; EPA/600/J-94/105;
Stock Number PB94-155397
Additional Subjects Acidification ; Hydrocarbons ; Forests ; Atmospheric composition ; Inventories ; Emission ; Coniferous trees ; Solar radiation ; Temperature ; Humidity ; Wind velocity ; Oxidants ; Leaves(Botany) ; Isoprene ; Terpene hydrocarbons ; Mathematical models ; Field tests ; Reprint ; Foreign technology ; Plant canopies ; Acid rain
Library Call Number Additional Info Location Last
NTIS  PB94-155397 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 09/01/1994
Collation 19p
A biogenic hydrocarbon emission inventory system, developed for acid deposition and regional oxidant modeling, is described, and results for a U.S. emission inventory are presented. For deciduous and coniferous forests, scaling relationships are used to account for canopy effects upon solar radiation, temperature, humidity, and wind speed as a function of height through the canopy. Leaf temperature is calculated iteratively from a leaf energy balance as a function of height through the canopy. The predicted light and temperature levels are used with mean empirical emission rate factors and laboratory emission algorithms to predict hydrocarbon emission rates. For application to a U.S. inventory, diurnal emission fluxes of isoprene, alpha-pinene, other monoterpenes, and other hydrocarbons are predicted for eight land cover classes by state climatic division by month. The total U.S. emissions range from 22 to 50 Tg yr/-1 depending upon the formulation of different emission rate factors. Further evaluation of the inventory using field measurements is required to determine the overall accuracy of the emission estimates.