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Earth, Planets and Space
Fig. 10 | Earth, Planets and Space

Fig. 10

From: Mass eruption rates in pulsating eruptions estimated from video analysis of the gas thrust-buoyancy transition—a case study of the 2010 eruption of Eyjafjallajökull, Iceland

Fig. 10

Particles’ temperature within a pulse: Example for a typical FLIR image taken at 8 May 2010. Settings: emissivity 0.92; atmospheric temperature 4.2 °C; relative humidity 0.50; transmission 0.91. It shows an ash pulse suggesting a maximum temperature of ~400 °C within the marked rectangular area and ~480 °C near the top, where the entrainment at the margins is expected to have the least effect. In the absence of more precise thermal data, the latter temperature value is used as approximation for the bulk temperature of the pulse

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