Category: Volcanic activity
Eruptive period of Popocatépetl in Mexico
![](https://cimss.ssec.wisc.edu/satellite-blog/wp-content/uploads/sites/5/2023/05/popo_2p-20230525_155117.png)
GOES-16 (GOES-East) Ash RGB images and Dust RGB images (above) showed numerous volcanic plumes emanating from Popocatépetl in central Mexico during the 5-day period from 21 May – 25 May 2023. On 21 May, the airport at Puebla (MMPB) was temporarily closed, due to the potential adverse impact of volcanic ash to... Read More
Comparing three different RGBs after the eruption of Shiveluch
![](https://cimss.ssec.wisc.edu/satellite-blog/wp-content/uploads/sites/5/2023/04/HIMAWARI-9_AHI_so2_20230412_0500003Tile.png)
There are different RGBs available to monitor volcanic signatures within a cloud, and three common ones are shown above. The Dust RGB and the Ash RGB use identical channels/channel differences that are scaled differently. All three RGBs (here is the The SO2 RGB Quick Guide) include Band 11 information; Band 11 detects radiation... Read More
Eruption of Shiveluch on the Kamchatka Peninsula
![](https://cimss.ssec.wisc.edu/satellite-blog/wp-content/uploads/sites/5/2023/04/Himawari-9_AHI_FLDK_ash_2023101_073000Z.png)
JMA Himawari-9 Ash RGB images created using Geo2Grid (above) showed a complex volcanic cloud resulting from an eruption of Shiveluch that began just after 1300 UTC on 10 April 2023. Much of the volcanic cloud exhibited brighter shades of yellow (indicating a mixture of ash and SO2), but there were also areas of brighter green (indicating... Read More