Fig. 4: Water vapour in the HT plume.
From: The unexpected radiative impact of the Hunga Tonga eruption of 15th January 2022
Water vapour radio-sounding observations over western Australia on 18th January (unperturbed background in RF estimations, black line), 19th (dark red line), 20th (red line), and 8th February (yellow line), and over Saint Helena island (blue line) (a). Plume and sounding positions (red crosses) are shown in b–f, using IMS/IASI SO2 and sulfate-specific AOD observations.
