The Starzach site’s main mofette area. nork Yann Georg Büchau (22683667)

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A series of Gaussian puffs fitted to station 6 data based on Eq (10). Time and location match the white rectangle in Fig 6. nork Yann Georg Büchau (22683667)

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Qualitative comparison of Gaussian puff spread parametrisations in terms of time or distance, based on with realistic (i.e. physically sensible or for Starzach data well-matching)... nork Yann Georg Büchau (22683667)

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Zoomed view of Fig 3. nork Yann Georg Büchau (22683667)

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Time series of concentration, best cross-correlation and shift of two stations at the Starzach site. nork Yann Georg Büchau (22683667)

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Average daily emission rates at the Starzach site over 47 days. nork Yann Georg Büchau (22683667)

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Typical 24 hour time series of a near-surface station 6 at the Starzach site’s main mofette area with global average concentration reference of 415 ppm [2] (top), and peak duration... nork Yann Georg Büchau (22683667)

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Snapshot of transport vector field at the Starzach site in July 2022, derived from cross-correlations between concentration time series according to Eq (5) on a horizontal grid wit... nork Yann Georg Büchau (22683667)

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Boxplots of the best cross-correlation between time series during one day (31.07.2022). nork Yann Georg Büchau (22683667)

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Time series of total mass emission rate at the Starzach site, calculated from integrated transport divergence according to Eq (5) for the white rectangle downstream fo the groundwa... nork Yann Georg Büchau (22683667)

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