Karymsky eruption on Kamchatka

November 3rd, 2021 |
Himawari-8 derived Ash Loading, 0440 – 1230 UTC on 3 November 2021

Imagery from the NOAA/CIMSS Volcanic Monitoring website (link) shows derived Ash loading (above) from the 3 November eruption of Karymsky on the Kamchatka peninsula. The website identified an eruption beginning around 0720 UTC, with an obvious eruptive plume by 0740 UTC. In addition to Ash Loading, shown above, Ash Height (click here for an 8-h mp4 animation) was also derived; a still image from 1110 UTC, below, shows two separate plumes, one around 6 km (indicated by the white arrow), one closer to 10-12 km (indicated by the magenta arrow).

Retrieved Volcanic Ash height, 1110 UTC on 3 November 2021 (Click to enlarge)

In addition to quantitative estimates of ash, Himawari-8 (and GOES-R and GK2A) channels can be combined in RGBs to highlight qualitatitely regions where ash is likely. The animation below (from Scott Bachmeier) shows the Ash RGB. (Click here for a Quick Guide on this RGB)

Himawari-8 Ash RGB Imagery showing the Karymsky Ash Cloud, 0710-1250 UTC 3 November 2021 (click to enlarge)

A tip of the (winter) Hat to Nathan Eckstein, NWS AAWU in Anchorage, for alerting us to this event.

La Palma volcano in the Canary Islands

November 2nd, 2021 |

GOES-16 True Color RGB images [click to play animated GIF | MP4]

GOES-16 (GOES-East) True Color RGB images created using Geo2Grid (above) showed the east-southeastward drift of ash-laden volcanic clouds from Cumbre Vieja on La Palma in the Canary Islands on 02 November 2021. Since this current eruptive period began on 19 September, intermittent periods of volcanic clouds with an elevated ash content have been observed — and on this particular day, the darker tan to light brown appearance was an indication that higher ash concentrations were likely.

The corresponding GOES-16 Ash RGB images (below) extended an hour further, past sunset. The hues of pink to purple suggested the presence of higher concentrations of volcanic ash.

GOES-16 Ash RGB images [click to play animated GIF | MP4]

Ash Loading product [click to play animated GIF | MP4]

Compared to previous eruptions on 19 September and 09 October, the Ash RGB signature was more pronounced on this day; this was due to a significantly higher ash loading (above) of larger-radius ash particles (below). These 2 radiometrically-retrieved products are from the NOAA/CIMSS Volcanic Cloud Monitoring site.

Ash Effective Radius product [click to play animated GIF | MP4]

Eruption of Manam in Papua New Guinea

October 19th, 2021 |

Himawari-8 True Color RGB images [click to play animated GIF | MP4]

The Manam volcano in Papua New Guinea erupted around 2200 UTC on 19 October 2021. JMA Himawari-8 True Color RGB images created using Geo2Grid (above) showed lower- to middle-altitude ash clouds (shades of tan to brown) moving westward and northward, while the main eruptive cloud — composed of a mixture of ash, SO2 and ice particles — spread out at high altitudes to the east and north. (Side note: brief flashes of sun glint off some of the island rivers were also seen.)  

Retrieved values of Ash Height from the NOAA/CIMSS Volcanic Cloud Monitoring site (below) indicated that the Manam eruption cloud reached maximum altitudes within the 16-18 km range. 

Himawari-8 Ash Height [click to play animated GIF | MP4]

Ongoing eruption of Cumbre Vieja (La Palma) in the Canary Islands

October 9th, 2021 |

GOES-16 True Color RGB images [click to play animation | MP4]

GOES-16 (GOES-East) True Color RGB images created using Geo2Grid (above) showed the south-southeastward drift of an ash-laden volcanic cloud from Cumbre Vieja on La Palma in the Canary Islands on 09 October 2021. Since this most recent ongoing eruptive period began on 19 September, intermittent periods of volcanic clouds with an elevated ash content have been observed — and on this day, the darker tan to light brown appearance was an indication that higher ash concentrations were likely.     

In the corresponding GOES-16 Ash RGB  images (below), increasing shades of pink — which suggest a higher ash content — became apparent within a semi-circular volcanic cloud element after 1100 UTC.  

GOES-16 Ash RGB images [click to play animation | MP4]

A NOAA-20 VIIRS True Color image as viewed using RealEarth (below) also showed the darker tan to light brown shades of the ash-laden volcanic cloud.

NOAA-20 VIIRS True Color RGB image [click to enlarge]

GOES-16 retrieved products from the NOAA/CIMSS Volcanic Cloud Monitoring site (below) indicated that the more distinct pulse of ash-laden volcanic cloud had a maximum height in the 5-6 km range, and was composed of ash particles having an effective radius 10 µm and smaller. 

GOES-16 Ash Probability [click to play animation | MP4]

GOES-16 Ash Loading [click to play animation | MP4]

GOES-16 Ash Height [click to play animation | MP4]

GOES-16 Ash Effective Radius [click to play animation | MP4]