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| Observatorio Volcanológico de los Andes del Sur (OVDAS) | |
|---|---|
| Name | Observatorio Volcanológico de los Andes del Sur (OVDAS) |
Observatorio Volcanológico de los Andes del Sur (OVDAS) is a Chilean volcanic monitoring observatory focused on the southern segment of the Andes volcanoes. It provides real-time surveillance, hazard assessment, and scientific research for volcanic centers in regions associated with the Andes, Los Lagos Region, and Aysén Region. OVDAS contributes to national risk management frameworks by issuing alerts used by authorities such as the Servicio Nacional de Geología y Minería and regional civil protection agencies like Onemi.
OVDAS conducts continuous geophysical and geochemical monitoring across volcanic systems including Calbuco, Chaitén, Villarrica, Llaima, and Osorno. The observatory integrates data from seismic networks deployed near Puyehue, Cleveland Volcano, Cordon Caulle, and islands of the Southern Volcanic Zone. It issues alerts coordinated with the Dirección General del Territorio Marítimo for maritime implications and with the Dirección Meteorológica de Chile when ash clouds affect airspace used by carriers such as LATAM Airlines and Sky Airline.
OVDAS traces its operational roots to seismic and volcanic monitoring efforts intensified after the 1960s eruptions of Ojos del Salado region volcanoes and institutional consolidation following the 1991 eruption of Mount Hudson. Upgrades accelerated after the 2008 and 2011 episodes at Chaitén and Cordon Caulle respectively, leading to expanded networks and collaborations with international bodies like the United States Geological Survey and the Global Volcano Model. Historical engagement includes advisory roles during crises involving Osorno and the 2015 activity at Calbuco.
OVDAS is structured with technical teams specializing in seismology, geodesy, gas geochemistry, and remote sensing, often interacting with academic units at the University of Chile, Universidad de Concepción, and Universidad Austral de Chile. Facilities include seismic stations interoperable with the Global Seismographic Network, gas spectrometers compatible with standards from the International Association of Volcanology and Chemistry of the Earth's Interior, and satellite reception linked to the European Space Agency and National Aeronautics and Space Administration. Field camps are established near hazard-prone edifices such as Villarrica and Llaima for rapid response.
OVDAS operates permanent seismic arrays, continuous GPS networks, and multi-parameter gas monitoring on volcanoes including Puyehue-Cordón Caulle and Calbuco. Research programs focus on eruption forecasting methodologies developed alongside the Smithsonian Institution's Global Volcanism Program, studies of magmatic systems comparable to work at Mount St. Helens and Sakurajima, and ash dispersion modelling using tools adopted by International Civil Aviation Organization protocols. Collaborative projects include petrological investigations with the Geological Society of America and hazard mapping initiatives referenced by United Nations Office for Disaster Risk Reduction.
OVDAS monitored the 2008–2011 eruptive sequence at Chaitén and the 2011 Cordon Caulle eruption that disrupted trans-Pacific air routes, comparable in aviation impact to the 2010 Eyjafjallajökull eruption. The 2015 eruption of Calbuco and recurrent activity at Villarrica drew multi-agency responses involving Onemi and Servicio Nacional de Geología y Minería. OVDAS contributions were critical during scenarios requiring coordination with the Dirección Meteorológica de Chile, regional airports such as El Tepual International Airport, and shipping authorities for events near Puerto Montt.
OVDAS maintains formal and informal partnerships with the Servicio Nacional de Geología y Minería, international institutions like the United States Geological Survey, the Smithsonian Institution, and academic partners including Universidad de Chile and Universidad de Concepción. It participates in regional networks such as the Andean Volcanological Observatory Network and contributes data to the Global Volcano Model and the Global Seismographic Network. Collaborations also extend to aviation stakeholders including International Air Transport Association and national agencies like Onemi for integrated risk communication.
OVDAS engages the public through outreach with municipalities such as Puerto Montt and Coyhaique, produces hazard maps referenced by regional planners, and collaborates with educational institutions like Universidad Austral de Chile for student training. It issues bulletins used by media outlets covering Chaitén and Calbuco activity, and participates in workshops co-hosted with the United Nations Office for Disaster Risk Reduction and International Civil Aviation Organization to improve community preparedness and airspace safety.
Category:Volcanology Category:Scientific organisations based in Chile Category:Andes