Fig. 1: Volcanic injection and initial HT plume evolution.
From: The unexpected radiative impact of the Hunga Tonga eruption of 15th January 2022
Selected Ash RGB Himawari images for three sequences of the initial dispersion of the HT volcanic plume (15th January at 4:40 to 20th January at 14:00). a HT explosion and plume rise; b disappearing ash/ice signal; c sulphur-rich plume dispersion across Australia. All times are UTC. By a RGB band combination, this product allows to qualitatively distinguish thick ash plumes or ice clouds (brown), thin ice clouds (dark blue) and sulphur-containing plumes (green). Mixed ash/sulphur-containing volcanic species would appear in reddish and yellow shades.
