September 2014, and the Holuhraun eruption of Bárðarbunga is well under way. We stopped for the night at a farm to the south of Vatnajökull glacier, and the eruption plume filled the sky.
At 18:45 when the sun set, the afterglow caused by volcanic ejecta - oxides of sulphur and thin clouds of tiny sulphuric acid droplets lofted into the stratosphere - yielded lurid but beautiful colours.
photography group (npub1fcp…w85n)
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