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Quantitative estimation of black carbon in the glacier Ampay-Apurimac

Original scientific paper

Journal of Sustainable Development of Energy, Water and Environment Systems
ARTICLE IN PRESS (volume and issue assigned later), 1080342
DOI: http://dx.doi.org/10.13044/j.sdewes.d8.0342
Carolina Soto Carrión1 , Carl G. Schmitt2, Juan J. Zuñiga Negrón3, Wilber Jiménez Mendoza4, Oscar Arbieto Mamani5, Rosmery S. Pozo Enciso6, Sulema J. Guevara Sarmiento7, Maxwell S. Rado Cuchills8
1 University Tecnologhy of Andes, ABANCAY, Peru
2 Western Washington University, Bellingham, Washington University of Alaska, Fairbanks
3 Research Center on Climate Change and Environmental Management National University of San Antonio Abad of Cusco Environmental Consultant GEOING SAC, Cusco
4 National University Micaela Bastidas of Apurímac, ABANCAY, Peru
5 National University Micaela Bastidas of Apurímac, Abancay, Peru
6 Directorate of Research and Quality of the UAP subsidiary Abancay University Alas Peruanas, Abancay, Apurímac
7 Research Center on Climate Change and Environmental Management
8 National University of San Antonio Abad of Cusco, Cusco, Peru

Abstract

The presence of light-absorbing particles, including black carbon, in glaciers leads to a reduction in albedo (light reflection), leading to further melting of snow ice, as more amount of shortwave solar radiation and leads to the glacier. The objective has been to determine the variation in the temporal space of black carbon, the amount of light-absorbing particles and the decrease of albedo on the surface of the Ampay glacier. 10 snow samples were selected at various locations on the glacier during 2017. The light absorption heating method has been applied to measure light-absorbing particles, a technique that measures the temperature increase of the particle charge in a filter applying visible light that estimates the amount of light energy. The results show in terms of effective black carbon, the highest of 65,224 nanograms of black carbon per gram of water in the month of October and the minimum value of 20,941 nanograms of black carbon per gram of water in the month of February, typically associated with the rain. The energy absorbed by the light-absorbing particles in the Ampay glacier was highest in November with 8952922.44 (J * s / m2) and lowest in February with 2747259.24 (J * s / m2). In April the amount of snow melted due to light-absorbing particles was approximately 13.57 kilograms per square meter. Melting has increased considerably in other months with the largest melting, with a value of 26.65 57 kilograms per square meter, almost 7.0 kW / m2 of snow turned into water in the month of November. It is concluded that the technique of the Light absorption heating method is adequate because it is optimal for the achievement of the research objectives; it is economical, effective and has allowed quantifying light-absorbing particles in snow.

 

Keywords: Black carbon, Quantitative estimation, Solar radiation, Light absorbing particles, Albedo, Glacial mass.

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