Aerosols measurement as product of biomass burning on cryosphere in the Central Andes

BOLAÑO-ORTIZ, TOMÁS; PASCUAL, ROMINA; LÓPEZ NOREÑA, ANA; RUGGERI, M. FLORENCIA; LAKKIS, GABRIELA; PULIAFITO, S. ENRIQUE

San Juan

Workshop; School of Atmospheric Measurements in Latin America and the Caribbean (SAMLAC): Reactive Gases and Aerosols; 2018

IGAC Americas Working Group and the Caribbean Aerosol-Health Network

The cryosphere on the Central Andes between Argentina and Chile is an important water reservoir, therefore, it is important to ensure the sustainability of thisresource for the ecosystem and millions of people in this region. Then, the knowledge about hydrological cycle and the different phenomena that are affecting its radiative balance caused by absorbing aerosols of solar radiation, some of these aerosols can be generated by large burning of biomass, a practice that occurs during crop changes in the austral spring in South America.This study shows that approximately 11% of the spring snow albedo reduction over the Centras Andes is could by an increase in aerosol optical depth and t, thus having a significant impact on the resources available to ecosystem and cities that are supplied from this area. The outputs of the model show a significant presence of fine particulate material (Pm2.5 and BC) that increase in this area simultaneously with the increment of sources of biomass burning identified in our emissions inventories.