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Eruption of the Sierra Negra volcano in the Galapagos

By Scott Bachmeier •

GOES-16 False Color RGB images [click to play animation]

GOES-16 False Color RGB images [click to play animation]

GOES-16 (GOES-East) False Color Red-Green-Blue (RGB) images from the NOAA/CIMSS Volcanic Cloud Monitoring site (above) showed another eruption of the Sierra Negra volcano on the Galapagos, which began late in the day on 01 July 2018. Since the volcanic plume was rich in SO2, it exhibited a cyan appearance in the RGB imagery.

As was demonstrated following the 26 June eruption, GOES-16 Low-level Water Vapor (7.3 µm) imagery (below) can also be used to initially track volcanic plumes that have high concentrations of SO2 (since this spectral band is also sensitive to SO2 absorption).

GOES-16 Low-level Water Vapor (7.3 µm) images [click to play animation | MP4]

GOES-16 Low-level Water Vapor (7.3 µm) images [click to play animation | MP4]

Categories: GOES-16, Red-Green-Blue (RGB) images, Volcanic activity