Classification of volcanic ash using VIIRS sensor data

Abstract

The dispersion of volcanic ash in the atmosphere, caused by eruptions or subsequent resuspension of volcanic ash deposits, causes environmental impacts and affects human activities at different scales. Through remote sensors mounted on board satellites, it is possible to monitor and track volcanic ash clouds. This work presents a satellite based algorithm using three infrared bands of the VIIRS sensor on board the NOAA- 20 satellite for the classification of pixels with volcanic ash, taking as a case study the eruption of the Ubinas Volcano on July 19, 2019 in Perú. These results could contribute as a tool for analysis and verification in the Buenos Aires Volcanic Ash Advisory Center (VAAC).