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Resuspended ash from the Novarupta-Katmai volcano in Alaska

By Scott Bachmeier •

GOES-17 “Red” Visible (0.64 µm) images [click to play animated GIF | MP4]

1-minute Mesoscale Domain Sector GOES-17 (GOES-West) “Red” Visible (0.64 µm) images (above) showed a hazy plume of resuspended volcanic ash — from the 1912 eruption of Novarupta-Katmai — moving southeastward then eastward across the Shelikof Strait toward Kodiak Island in southern Alaska on 08 April 2022.

The corresponding 1-minute GOES-17 Dust RGB images (below) displayed faint hues of magenta associated the plume — which appeared to increase somewhat around 00 UTC on 09 April.

GOES-17 Dust RGB images [click to play animated GIF | MP4]

1-minute GOES-17 True Color RGB images created using Geo2Grid (below) helped to confirm the emergence of a second pulse of resuspended ash that began around 00 UTC.

GOES-17 True Color RGB images [click to play animated GIF | MP4]

Categories: Geo2Grid, GOES-17, Red-Green-Blue (RGB) images