Mean age of stratospheric air derived from AirCore observations
نویسندگان
چکیده
منابع مشابه
Stratospheric age of air
The age of stratospheric air is computed with a trajectory model, using ECMWF ERA-40 3-D-Var and operational 4-D-Var winds. The sensitivity to the forecast period and assimilation technique are studied, and the results are compared with observations and with results from a chemistry transport model that uses the same data sets. A large 5 number of backward trajectories is started in the stratos...
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Global distributions of profiles of sulphur hexafluoride (SF6) have been retrieved from limb emission spectra recorded by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on Envisat covering the period September 2002 to March 2004. Individual SF6 profiles have a precision of 0.5 pptv below 25 km altitude and a vertical resolution of 4–6 km up to 35 km altitude. These data h...
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Global distribution of mean age of stratospheric air from MIPAS SF6 measurements G. P. Stiller, T. von Clarmann, M. Höpfner, N. Glatthor, U. Grabowski, S. Kellmann, A. Kleinert, A. Linden, M. Milz, T. Reddmann, T. Steck, H. Fischer, B. Funke, M. López-Puertas, and A. Engel Forschungszentrum Karlsruhe and University of Karlsruhe, Institut für Meteorologie und Klimaforschung, Karlsruhe, Germany I...
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Abstract. Trace gas transport in the lower stratosphere is investigated by analyzing seasonal and inter-annual variations of the age of air spectrum – the probability distribution of stratospheric transit times. Age spectra are obtained using the Lagrangian transport model CLaMS driven by ERA-Interim winds, and using a boundary-impulse-response method based on multiple tracer pulses. Seasonal a...
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ژورنال
عنوان ژورنال: Atmospheric Chemistry and Physics
سال: 2017
ISSN: 1680-7324
DOI: 10.5194/acp-17-6825-2017