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Abstract The characterisation of mineral dust at emission sources is essential for quantifying the wider-scale environmental impacts dust has, as well as improving its incorporation in modelling. Methods of sampling… Click to show full abstract
Abstract The characterisation of mineral dust at emission sources is essential for quantifying the wider-scale environmental impacts dust has, as well as improving its incorporation in modelling. Methods of sampling sediments at these source areas for the purposes of dust characterisation are varied and can produce different representations of emitted dust. This study systematically compared dust characterisations from three established approaches for estimating dust emission potential, namely: Big Spring Number Eight (BSNE) traps, a Portable In-situ Wind Erosion Laboratory (PI-SWERL) wind tunnel, and bulk surface sampling, at a known Namib Desert dust source. Individual particle analysis by auto-SEM (QEMSCAN) allowed comparison of size, shape, mineralogy and elemental composition at micrometre-scale for samples from the three approaches. BSNE samples consisted of a lower proportion of fine sediment (
Journal Title: Aeolian Research
Year Published: 2021
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