Effect of climate change on surface ozone over North America, Europe, and East Asia.
Geophys Res Lett
; 43(7): 3509-3518, 2016 Apr 16.
Article
in En
| MEDLINE
| ID: mdl-32818004
ABSTRACT
The effect of future climate change on surface ozone over North America, Europe, and East Asia is evaluated using present-day (2000s) and future (2100s) hourly surface ozone simulated by four global models. Future climate follows RCP8.5, while methane and anthropogenic ozone precursors are fixed at year-2000 levels. Climate change shifts the seasonal surface ozone peak to earlier in the year and increases the amplitude of the annual cycle. Increases in mean summertime and high-percentile ozone are generally found in polluted environments, while decreases are found in clean environments. We propose climate change augments the efficiency of precursor emissions to generate surface ozone in polluted regions, thus reducing precursor export to neighboring downwind locations. Even with constant biogenic emissions, climate change causes the largest ozone increases at high percentiles. In most cases, air quality extreme episodes become larger and contain higher ozone levels relative to the rest of the distribution.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Geophys Res Lett
Year:
2016
Document type:
Article
Affiliation country:
United States