Physics
Scientific paper
Feb 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011georl..3803810b&link_type=abstract
Geophysical Research Letters, Volume 38, Issue 3, CiteID L03810
Physics
Atmospheric Composition And Structure: Middle Atmosphere: Constituent Transport And Chemistry (3334)
Scientific paper
Satellite observations and model studies have previously established the impact of the Asian Summer Monsoon on the composition of the upper troposphere and lower stratosphere, where a region of enhanced water vapour and decreased ozone is found in the Monsoon anticyclone. We investigate a potential link between the magnitude of the Monsoon-induced ozone minimum and water vapour concentrations. In three idealised climate model experiments we prescribe ozone climatologies, decreasing or increasing ozone in the anticyclone region relative to the annual cycle during northern hemisphere summer. We discuss the modelled temperature and water vapour response. While water vapour decreases significantly when lower ozone is prescribed, it changes very little when higher ozone is prescribed, illustrating an important asymmetry between forcing and response.
Braesicke Peter
Pyle John A.
Smith Oliver J.
Telford Paul
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