Articles | Volume 15, issue 6
Atmos. Meas. Tech., 15, 1903–1916, 2022
https://doi.org/10.5194/amt-15-1903-2022
Atmos. Meas. Tech., 15, 1903–1916, 2022
https://doi.org/10.5194/amt-15-1903-2022
Research article
28 Mar 2022
Research article | 28 Mar 2022

Fill dynamics and sample mixing in the AirCore

Pieter Tans

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Cited articles

Baier, B., Sweeney, C., Tans, P., Newberger, T., Higgs, J., Wolter, S., and NOAA Global Monitoring Laboratory: NOAA AirCore atmospheric sampling system profiles, Version 20210813, NOAA GML [data set], https://doi.org/10.15138/6AV0-MY81, 2021. 
Battle, M., Bender, M., Sowers, T., Tans, P. P., Butler, J. H., Elkins, J. W., Ellis, J. T., Conway, T., Zhang, N., Lang, P., and Clarke, A. D.: Atmospheric gas concentrations over the past century measured in air from firn at the South Pole, Nature, 383, 231–235, 1996. 
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Short summary
The AirCore collects a continuous air sample in a long tube that can be read later when the captured air is slowly pushed through an analyzer. Much of the variation of gas composition encountered during collection is preserved, like having up to ~ 100 separate air samples. This is illustrated through examples of actual flights, and the analysis algorithm is described. The AirCore provides access to air as high as the mid stratosphere, enabling validation for satellite air composition soundings.