Extension of the Third European Stratospheric Experiment on Ozone (THESEO) balloon-borne measurements of atmospheric tracers and chemically active gases in the mid-latitude lower stratosphere for tests of atmospheric transport UTLS Round 1 project led by Dr R.L.Jones, Dr J.A.Pyle and Dr Neil Harris, Centre for Atmospheric Sciences, University of Cambridge and P.T. Woods, National Physical Laboratory (NPL).

This dataset contains atmospheric methane measurements from a balloon-borne near-IR laser spectrometer.

The data shows the methane mixing ratio at different atmospheric pressures. The overall scientific objective within this proposal was to contribute to the understanding of middle latitude ozone loss by making measurements of a number of important tracers of atmospheric motion and photochemistry, and by interpreting these measurements with state-of-the-art models of atmospheric chemistry and transport.