Greenland-only sulfate around 1262: a northern eruption whose haze stayed low
Guillet et al. 2023 list a Northern Hemisphere extratropical eruption around 1262, found in Greenland ice only, and judge from eclipse colours and tree rings that its aerosol stayed mostly in the lower atmosphere with little effect on climate. A low haze can still redden sunsets and twilights.
How it connects
This clue from nature is a clue for
1261 carbon-14 candidate
This clue from nature argues against
Germany: the sky toward the northwest as if burning, 1262 alternative: a volcanic twilight, not an aurora
This clue from nature we read it in
Guillet et al. 2023, Lunar eclipses illuminate timing and climate impact of medieval volcanism, Nature 616, 90 to 95 (open access)
This clue from nature came from this step
Checked the 2023 eclipse study for our medieval eruptions, and corrected two mistakes