Interaction of atmospheric chemistry and climate and its impact on stratospheric ozone

Schnadt, C.; Dameris, Martin; Ponater, M.; Hein, R.; Grewe, Volker; Steil, B.

doi:10.1007/s00382-001-0190-z

Cited by 70 publications

(96 citation statements)

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“…In E39/C, 39 vertical model levels reach from the surface up to 10 hPa (30 km) (Dameris et al, 2005), whereas in MAECHAM4-CHEM 39 model levels reach from the surface up to 0.01 hPa (80 km) Manzini et al, 2003). With more levels near the tropopause, E39/C is targeted more on processes around the tropopause Schnadt et al, 2002;Schnadt and Dameris, 2003). MAECHAM4-CHEM, on the other hand, is a full troposphere-stratosphere-mesosphere model (Manzini et al, 1997;Manzini et al, 2003).…”

Section: Simulations and Observationsmentioning

confidence: 99%

Interannual variation patterns of total ozone and lower stratospheric temperature in observations and model simulations

et al. 2006

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Section: Simulations and Observationsmentioning

confidence: 99%

Interannual variation patterns of total ozone and lower stratospheric temperature in observations and model simulations

et al. 2006

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“…Gas emissions, Sea Surface Temperature (SST), and boundary conditions were assumed similar to those measured or determined for the year 1990. A detailed model description and model applications can be found in Hein et al (2001) and Schnadt et al (2001). Table 2 summarizes the Nitrogen Oxide emissions as considered for this model simulation.…”

Section: Datamentioning

confidence: 99%

Tropospheric NO<sub>2</sub> columns: a comparison between model and retrieved data from GOME measurements

Lauer¹,

Dameris²,

Richter

et al. 2002

Atmos. Chem. Phys.

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Abstract. Tropospheric NO 2 plays a variety of significant roles in atmospheric chemistry. In the troposphere it is one of the most significant precursors of photochemical ozone (O 3 ) production and nitric acid (HNO 3 ). In this study tropospheric NO 2 columns were calculated by the fully coupled chemistry-climate model ECHAM4.L39(DLR)/CHEM. These have been compared with tropospheric NO 2 columns, retrieved using the tropospheric excess method from measurements by the Global Ozone Monitoring Experiment (GOME) of up-welling earthshine radiance and the extraterrestrial irradiance. GOME is part of the core payload of the second European Research Satellite (ERS-2). For this study the first five years of GOME measurements have been used. The period of five years of observational data is sufficiently long to facilitate for the first time a comparison based on climatological averages with global coverage, focussing on the geographical distribution of the tropospheric NO 2 .A new approach of analysing regional differences (i.e. on continental scales) by calculating individual averages for different environments provides more detailed information about specific NO x sources and of their seasonal variations. The results obtained enable the validity of the model NO 2 source distribution and the assumptions used to separate tropospheric and stratospheric parts of the NO 2 column amount from the satellite measurements to be investigated.

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“…To get a first idea, four different time-slice experiments of the past and future have been carried out (e.g. Hein et al, 2001;Schnadt et al, 2002). They represent 1960They represent , 1980They represent , 1990They represent and 2015 conditions.…”

Section: Streamer Activity In a Changing Climatementioning

confidence: 99%

Climatologies of subtropical mixing derived from 3D models

Eyring¹,

Dameris²,

Grewe³

et al. 2003

Atmos. Chem. Phys.

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Abstract.Fingerlike structures reaching from lower into extra-tropical latitudes significantly contribute to the tropical-extratropical exchange of air masses. This is also an exchange of upper tropospheric and stratospheric air. Those so called streamers can, on a horizontal plane, be detected in N 2 O or O 3 since they are characterised by high N 2 O or low O 3 values compared to undisturbed mid-latitude values. A climatology of streamer events has been established, employing the chemical-transport model KASIMA, which is driven by ECMWF re-analyses (ERA) and operational analyses. For the first time, the seasonal and geographical distribution of streamer frequencies has been determined on the basis of 9 years of meteorological analyses.For the current investigation, a meridional gradient criterion has been newly formulated and applied to the N 2 O distributions calculated with KASIMA. A climatology has been derived by counting all streamer events between 21 and 25 km for the years 1990 to 1998. The results have been compared with a streamer climatology which has been established in the same way employing data of a multiyear simulation with the coupled chemistry-climate model

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Interaction of atmospheric chemistry and climate and its impact on stratospheric ozone

Cited by 70 publications

References 0 publications

Interannual variation patterns of total ozone and lower stratospheric temperature in observations and model simulations

Interannual variation patterns of total ozone and lower stratospheric temperature in observations and model simulations

Tropospheric NO<sub>2</sub> columns: a comparison between model and retrieved data from GOME measurements

Climatologies of subtropical mixing derived from 3D models

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Interaction of atmospheric chemistry and climate and its impact on stratospheric ozone

Cited by 70 publications

References 0 publications

Interannual variation patterns of total ozone and lower stratospheric temperature in observations and model simulations

Interannual variation patterns of total ozone and lower stratospheric temperature in observations and model simulations

Tropospheric NO&lt;sub&gt;2&lt;/sub&gt; columns: a comparison between model and retrieved data from GOME measurements

Climatologies of subtropical mixing derived from 3D models

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Tropospheric NO<sub>2</sub> columns: a comparison between model and retrieved data from GOME measurements