On April 22, 2015, Calbuco volcano in southern Chile began erupting for the first time since 1972. An ash cloud rose at least 15 kilometers (50,000 feet) above the volcano, the nearby communities of Puerto Montt (Chile) and San Carlos de Bariloche (Argentina) were evacuated in places where the ash load was considerable.
MODIS’s images below were taken on April 23 revealing the fast displacement the ash plumes took right after. Satellite instruments also acquired unusual nighttime views of the eruption (below) in the early morning hours of April 23. The joint NOAA/NASA Suomi NPP satellite observed atmospheric waves above Calbuco and its plume.
A fast warning was made for the LALINET stations to start measuring the plume evolution in height and optical properties. In parallel HYSPLIT back and forward trajectories have been simulated.
This is the Calipso overpass on the day of the eruption.
The next day, the plume was already travelling towards Buenos Aires, as can be seen in the Caliso data shown in the GoogleEarth below.
The Argentinian stations soon started to run as they already have an agreement with the national air traffic office and is in conducts operational measurements for ash identification and plume detection . Other stations in the continent started also special ops in order to observe plume events.
The fist observation came from Buenos Aires Aeroparque, Bariloche, Comodoro, Neuquen and Rio Gallegos stations, where plumes at heights from 3000 – 10000 m could be observed.
For real time data from Argentina, please see: http://www.division-lidar.com.ar/lidaronline
or our Lalinet page with all Argentina's lidar Real-Time quicklooks. Quick looks from Argentina lidars in REAL TIME
we have also put together a page for all data from Argentina since April 22nd: Quick looks from Argentina since 22nd
Soon after the lidar station in Concepcion, Chile, also observed the plumes, visually and with their lidar system.
All lidars in Argentina are fully operational:
Other stations in the network were alert : La Paz (Bolivia) , Medellin (Colombia), Manaus (Brazil) and São Paulo (Brazil). These stations are far way from the event location and plume pathways, however started measuring.
Four days after the event started, the lidar system in São Paulo detected a plume at 19000 m which could be a volcanic plume event which should be still confirmed.
At the same time, Buenos Aires were able to see some kind of cirrus cloud (but in fact this "cloud" was actually volcanic ashes above 12 km up to 20 km)
Measurements at La Paz, on the same day, did not show any sign of the volcano plume.
And today we got news from the CALIPSO team:
hey Eduardo and Fabio... cool web site! are you taking data pretty much continuously? if so, then (based on CALIPSO images) I bet you're seen a much stronger plume now, eh? it looks like the plume is moving north and east fairly rapidly... Mark
and also from the AUGER team, the cosmic rays observatory in Mendoza-AR! They sent a 23-page report of their Lidar observations close to Calbuco:
Dear all, this is a report of the AUGER Raman lidar observations after the Calbuco eruptions. Please forward to whom it may concern. Best Regards Vincenzo for the CRLF people and AUGER collaboration. -- Vincenzo Rizi CETEMPS/Dipartimento di Scienze Fisiche e Chimiche Università Degli Studi dell'Aquila
This is the last information from Chilean volcanic services.