Figure 6
From: Continuous monitoring of Hawaiian volcanoes with thermal cameras
Automated lava lake level compared with summit tilt data. Lava level (a) is calculated from the HTcam thermal images (from Script H2b). The summit frequently experiences deflation-inflation (DI) cycles as measured by ground tilt (b) (UWE tiltmeter location is shown in Figure 1c), and these fluctuations are closely followed by the summit lava lake level. This indicates that the summit lava lake acts as a liquid pressure gauge for the summit magma reservoir. The thermal images have not been corrected for atmospheric or volcanic gas effects, and actual surface temperatures may be higher than the apparent temperatures shown here.