UNIDEF   23986
UNIDAD DE INVESTIGACION Y DESARROLLO ESTRATEGICO PARA LA DEFENSA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Aerosol Monitoring Network in Argentina and Chile to Mitigate the Effect of Volcanic, Biomass Burning, Dust and Air Pollution Aerosol Events in the Frame of SAVER.Net SATREPS Program
Autor/es:
RISTORI P, OTERO L, JIN Y , SHIMIZU A , PAPANDREA S , GONZÁLEZ F, SALVADOR J, NISHIZAWA T , ZAMORANO F , SUGIMOTO N, MIZUNO A, ; QUEL E
Lugar:
Kobe
Reunión:
Conferencia; The 13th International Conference on Atmospheric Sciences and Applications to Air Quality (ASAAQ13); 2015
Resumen:
A tri-national collaboration between Argentinean, Chilean and Japanese researchers has been established under a SATREPS program promoted by JST and JICA to create a social management system to mitigate atmospheric environmental risk in South America. The main atmospheric risk to humans, animals, agriculture transportation and tourism that are focused by this project in this region comes from high aerosol loads from transported or re-suspended volcanic ash, Patagonian dust, biomass burning and air pollution, and from the increased ultraviolet radiation due to the depletion of the stratospheric ozone layer in the southern Patagonian region. This work is focused on the recent actions done by this tri-national SATREPS program called SAVER.Net in collaboration with local risk management programs in Argentina and Chile facing the recent volcanic eruption of the Chilean volcano Calbuco (41°19′ S 72°36′ W on April 22nd, 2015). Traces of this eruption were observed at five of the six lidars locations of the aerosol monitoring network close to important airports of Buenos Aires and in Patagonia. SAVER.Net is actively contributing to these efforts by two main initiatives. First by reinforcing the sations observing and data processing capabilities and second by adding three new lidars to the network. Those are a lidar in Punta Arenas, Chile and two high spectral resolution lidars in the central and northern region of Argentina. It must be noted that high spectral resolution lidar monitoring is a very powerful technique very well-known and developed by Japanese researchers and being learned and deployed by latin American researchers of this collaboration to extend the current aerosol identification capabilities done actually by Raman lidars during nighttime to full-day observation. This kind of observation drastically increases aerosol detection knowledge in terms of identification and classification over the region, improving lidar synergy with other instruments that use daylight perform their aerosol observations. This work also shows two main kind of volcanic ash transportation events which are the most frequent over the region through the last volcanic episode observation made by several lidars of the network. The first kind of events correspond to volcanic ash transport from the volcanic source through the local wind field to the monitoring station. The second kind of events correspond to volcanic ash transportation due to wind resuspension of reservoirs reaching the observation places at lower heights. These last events are important in the region since they can be observed even months after the main volcanic eruption event.