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Earth, Planets and Space
Fig. 8 | Earth, Planets and Space

Fig. 8

From: Continuous monitoring of the 2015–2018 Nevado del Ruiz activity, Colombia, using satellite infrared images and local infrasound records

Fig. 8

Comparison of infrasound and thermal data with surface-activity parameters recorded between September 1, 2014, and December 31, 2018. a Maximum pick pressure from the Chaparral sensor data at ACOLM station since December 2016. The periods shown by the blue arrows are the same as those in Fig. 7. b The same thermal anomaly data as in Fig. 4b. c Daily counts of icequakes at NRV (gray) and NTV (light blue). d Air temperature recorded by OLLETA weather station

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