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ZENODO
Dataset . 2026
License: CC BY
Data sources: Datacite
ZENODO
Dataset . 2026
License: CC BY
Data sources: Datacite
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Mean residence time in the stratosphere

Authors: Pletzer, Johannes;

Mean residence time in the stratosphere

Abstract

Data production Residence time is determined from idealized tracers with the EMAC model (Jöckel et al. 2016). These tracers are released at 480 points distributed across 20~latitudes in both hemispheres (mirrored around the equator) and 24~altitudes from the surface to the stratopause. While these tracers do not affect chemistry, radiation, or dynamics in the model and vice versa, cloud loss processes are applied at each time step. Hence, the tracers can be seen as idealized water vapor tracers. Employing this "soft" sink around the tropopause and in the troposphere allows tracer loss to follow the tropopause transition layer instead of a "rigid" tropopause definition. In an equilibrium of tracer emission to tracer loss, their ratio then gives residence time values on a multi-year mean basis. Post processing Age of air values are available at each grid box of the EMAC model, while residence time is computed at the 480 source locations only. To enable consistent comparison and ensure full spatial coverage, residence time values were interpolated onto the EMAC model grid within the tracer emission domain (0.5-57 km, 80° S-80° N). The tracer release grid is sufficiently dense in altitude and latitude that oversampling should not affect the multi-annual mean residence time patterns (2016-2019). Dynamics are specified with Newtonian relaxation, i.e. nudging, up to 10~hPa with ERA5 (Hersbach et al. 2020). Condition of use The work is licensed under Creative Commons Attribution 4.0 International. We further kindly ask to credit the creators by citing the following publication analysing the data set: 

Keywords

Air transport, Atmosphere, Atmosphere dynamics

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average