Τίτλος:
Assessment of the Impacts of Climate Change on European Ozone Levels
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
The objective of this study is to investigate the potential impact of
future climate change on ozone air quality in Europe. To provide a full
assessment, simulations with the global chemical transport model
GEOS-CHEM driven by the NASA Goddard Institute for Space Studies general
circulation model (NASA/GISS GCM) are conducted. To isolate the effects
from changes in climate and anthropogenic emissions four types of
simulations are performed: (1) present-day climate and emissions (2)
future climate following the IPCC Special Report on Emission Scenarios
(SRES) A1B scenario and present-day anthropogenic emissions of ozone
precursors (3) present-day climate and future emissions and (4) future
climate and future emissions. Results indicate that climate change
impact on its own leads to an increase of less than 3 ppb in western and
central Europe whereas decreases are evident for the rest of the areas
with the highest (about 2.5 ppb) in southeastern Europe (Italy, Greece).
Increases are attributed to the increases of isoprene biogenic emissions
due to increasing temperatures whereas decreases are associated with the
increase of water vapor over sea which tends to decrease the lifetime of
ozone as well as the increased wind speeds in the 2050 climate. When
future emissions are implemented in the future climate simulations, the
greatest increases are seen in the southwest and southeast Mediterranean
(about 16 ppb) due to the increased isoprene biogenic emissions under
higher levels of NOx in the model. Decreases up to 2 ppb of ozone are
shown for France, Switzerland, Northern Italy and northern Europe.
Συγγραφείς:
Varotsos, K. V.
Giannakopoulos, C.
Tombrou, M.
Περιοδικό:
Water, Air, and Soil Pollution: Focus
Εκδότης:
SPRINGER INTERNATIONAL PUBLISHING AG
Λέξεις-κλειδιά:
Climate change; Ozone; Europe; Future emissions
DOI:
10.1007/s11270-013-1596-z
