Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Climate Change and Isoprene Emissions from Vegetation.
Author Turner, D. P. ; Baglio, J. V. ; Pross, D. ; McVeety, B. D. ; Phillips., D. L. ;
CORP Author Corvallis Environmental Research Lab., OR. ;ManTech Environmental Technology, Inc., Corvallis, OR. ;Oregon State Univ., Corvallis. ;Battelle Pacific Northwest Labs., Richland, WA.
Publisher c1991
Year Published 1991
Report Number EPA/600/J-92/094;
Stock Number PB92-153865
Additional Subjects Climatic changes ; Natural emissions ; Mathematical models ; Vegetation ; Air pollution ; Isoprene ; Global aspects ; Carbon dioxide ; Study estimates ; Atmospheric composition ; Ozone ; Air-biosphere interactions ; Methane ; Greenhouse effects ; Atmospheric chemistry ; Spatial distribution ; Temporal distribution ; Non-methane hydrocarbons ; Reprints ;
Library Call Number Additional Info Location Last
NTIS  PB92-153865 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 08/28/1992
Collation 21p
A global model was developed for estimating spatial and temporal patterns in the emission of isoprene from vegetation under the current climate and used to estimate emissions under doubled-CO2 climate scenarios. Current emissions were estimated on the basis of vegetation type, foliar biomass (derived from the satellite-generated Global Vegetation Index), and global databases for air temperature and photoperiod. The model had a monthly time step and the spatial resolution was 0.5 degrees latitude and longitude. Doubled-CO2 climate emissions were estimated based on predicted changes in the areal extent of different vegetation types, each having a specific rate of annual isoprene emissions. The global total for current emissions was 285 Tg. The calculated isoprene emissions under a doubled-CO2 climate were about 25% higher than current emissions due mainly to the expansion of tropical humid forests which had the highest annual emission rates. An increase in isoprene emissions is expected to increase atmospheric concentrations of ozone and methane which are important greenhouse gases, and thus act as a positive feedback to global warming. Detailed treatment of the question, however, will require incorporation of these emission surfaces into atmospheric chemistry models.