Mean circulation and ozone buildup
نویسنده
چکیده
The mean meridional circulation and midlatitude ozone buildup G. Nikulin and A. Karpechko Swedish Institute of Space Physics, Atmospheric Research Programme, Box 812, SE-98112 Kiruna, Sweden Finnish Meteorological Institute, Arctic Research Centre, Tähteläntie 62, FIN-99600 Sodankylä, Finland Received: 9 May 2005 – Accepted: 26 May 2005 – Published: 30 June 2005 Correspondence to: G. Nikulin ([email protected]) © 2005 Author(s). This work is licensed under a Creative Commons License.
منابع مشابه
The mean meridional circulation and midlatitude ozone buildup
The wintertime ozone buildup over the Northern Hemisphere (NH) midlatitudes and its connection with the mean meridional circulation in the stratosphere are examined statistically on a monthly basis from October to March (1980–2002). The ozone buildup begins locally in October with positive total ozone tendencies over the North Pacific, which spread eastward and westward in November and finally ...
متن کاملTransport and the Seasonal Variation of Ozone
are deduced from the comparison of model results to stratospheric data. The seasonal transport is dominated by a combination of the diabatic circulation and transient planetary wave activity acting on a diffusively and photochemically determined background state. The seasonal variation is not correctly modeled as a diffusive process. The buildup of total ozone at high latitudes during winter is...
متن کاملSeasonal persistence of midlatitude total ozone anomalies
[1] Temporal autocorrelations of monthly mean total ozone anomalies over the 35–60 S and 35–60 N latitude bands reveal that anomalies established in the wintertime midlatitude ozone buildup persist (with photochemical decay) until the end of the following autumn, and then are rapidly erased once the next winter’s buildup begins. The photochemical decay rate is found to be identical between the ...
متن کاملSimulated versus observed patterns of warming over the extratropical Northern Hemisphere continents during the cold season.
A suite of the historical simulations run with the Intergovernmental Panel on Climate Change Fourth Assessment Report (IPCC AR4) models forced by greenhouse gases, aerosols, stratospheric ozone depletion, and volcanic eruptions and a second suite of simulations forced by increasing CO(2) concentrations alone are compared with observations for the reference interval 1965-2000. Surface air temper...
متن کاملTropospheric ozone climatology over Irene , South Africa , from 1990 to 1994 and 1998 to 2002
[1] Ozonesonde measurements over Irene in South Africa are reported for the period 1990 to 1994 and a more recent period, 1998 to 2002, when the station became part of the Southern Hemisphere Additional Ozonesondes (SHADOZ) network. Irene displays the characteristic Southern Hemisphere springtime tropospheric ozone maximum, but its seasonal features are modulated by both tropical and midlatitud...
متن کامل