Physics
Scientific paper
Sep 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30rasc4s&link_type=abstract
Geophysical Research Letters, Volume 30, Issue 18, pp. ASC 4-1, CiteID 1936, DOI 10.1029/2003GL017642
Physics
47
Atmospheric Composition And Structure: Biosphere/Atmosphere Interactions, Atmospheric Composition And Structure: Troposphere-Composition And Chemistry, Atmospheric Composition And Structure: Evolution Of The Atmosphere, Global Change: Atmosphere (0315, 0325)
Scientific paper
The effect of climate change on vegetation, isoprene emissions and surface ozone levels was investigated using a global three-dimensional general circulation model coupled to a dynamic vegetation and chemistry models. Integrations for the 1990s and 2090s were performed. Isoprene emissions increased from 549 Tg yr-1 (1990s) to 736 Tg yr-1 (2090s) as a result of climate change with fixed vegetation. However, the isoprene emissions only increase to 697 Tg yr-1 in the 2090s when vegetation changes were included. Surface ozone levels rose by 20-30 ppbv in some locations with fixed vegetation owing to increases in precursor gases, but only by 10-20 ppbv if the vegetation changes were included. Ozone levels in parts of China, Korea and the eastern USA are predicted to exceed the World Health Organisation health limit of 60 ppbv, however, when changes in vegetation are accounted for, a much smaller area exceeds this limit.
Collins Jesse W.
Derwent Richard G.
Johnson Elliott C.
Jones Carl D.
Sanderson M. G.
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