Volcanoes

Overview

Volcanic ash can damage aircraft and disrupt air traffic. Agencies around the world track volcanic clouds and issue alerts to the aviation community. Now data from NASA earth-observing satellites is improving the ability to detect and forecast the hazard to aviation from volcanic clouds.

 

Latest Updates

July 17, 2018
MODIS thermal time series for Fuego
The upper-right figure shows a plot of total emitted radiance (at 4 microns) from Fuego observed by MODIS (MODVOLC product) from 2000 to present. The time-series data appear that the recent Fuego eruption (June 03, 2018) came at the end of a long waxing-then-waning period of thermal output which began in 2015, and peaked sometime late 2017.
June 28, 2018
Landsat 8 image aquired June 24th, 2018.
Landsat 8 image aquired June 24th, 2018. On June 3, 2018, torrents of hot ash, rock, and gas poured down ravines and stream channels on the slopes of Volcán de Fuego—Guatamala’s Volcano of Fire. More than three weeks after the eruption, the Landsat 8 satellite continued to detect elevated temperatures in some of the pyroclastic flow deposits. The...
May 26, 2018
ALOS-2 interferogram from June 23rd, 2018 acquisition relative to June 9th, 2018.
The Advanced Land Observing Satellite-2 (ALOS-2), a Japanese Aerospace Exploration Agency (JAXA) satellite, is a follow-on mission from the "DAICHI", which contributed to cartography, regional observation, disaster monitoring, and resource surveys. ALOS-2 will succeed this mission with enhanced capabilities. Specifically, JAXA is conducting research and development activities to improve wide and high-resolution observation technologies developed for DAICHI in order to further fulfill social needs. Each interferometric synthetic aperature radar (InSAR) image, or interferogram, shows the amount...
May 6, 2018
MISR highlights June 23rd 2018
June 23rd, 2018 Volcanic eruptions can generate significant amounts of atmospheric aerosols that often have regional to global impacts. To determine the influence of volcanic eruptions, accurate plume heights are needed, but are difficult to obtain  due to the hazardous nature of such eruptions. Stereo images from NASA’s Multi-Angle Imaging Spectroradiometer (MISR) make it possible to map plume heights in ongoing eruptions using parallax in the stereo imagery. We can also...
June 6, 2018
VIIRS_Thermal_Anomalies__Kilauea_June08_2018
VIIRS fires and thermal anomalies from 6/8/18, with VIIRS nighttime basemap. VIIRS fires and thermal anomalies from 6/6/18, with VIIRS nighttime basemap. VIIRS fires and thermal anomalies from 6/6/18...

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