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RECORD NUMBER: 14 OF 24

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
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;
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB92-153865 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 08/28/1992
Collation 21p
Abstract 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.
Supplementary Notes Pub. in Chemosphere, v23 n1 p37-56. See also PB91-226480. Prepared in cooperation with ManTech Environmental Technology, Inc., Corvallis, OR., Oregon State Univ., Corvallis, and Battelle Pacific Northwest Labs., Richland, WA.
NTIS Title Notes Journal article.
Title Annotations Reprint: Climate Change and Isoprene Emissions from Vegetation.
Category Codes 55C; 55E; 68A; 57C
NTIS Prices PC A03/MF A01
Primary Description 600/02
Document Type NT
Control Number 212823319
Cataloging Source NTIS/MT
Origin NTIS
Type CAT


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