Resumen

MEDINA, Gilberto  y  MEJIA, Abel. Multitemporal and multifractal analysis of the Paron Range deglaciation in the Andes of Perú. Ecol. apl. [online]. 2014, vol.13, n.1, pp.35-42. ISSN 1726-2216.

The loss of glacier volume in the tropical glaciers in our country can be regarded as an indicator of global climate change. According to Urrutia & Vuille (2009), all glaciers below 5 500 meters could disappear by the year 2050. One of the scientific techniques used to describe soil pores’ system (Montero, 2003) and ulexite concentrations in a salt mine (Posadas et al., 2005) is the use of multifractals, which has been poorly applied in glacier’s systems. The focus of this study was to quantify the glacier volume at Parón Range during the last 24 years using multifractal techniques and geographic system information in order to determine to what extent the El Niño and La Niña events influence its deglaciation. To differentiate the glacier mass from other elements such as clouds, water, etc., in the selected images the NDSI or snow index was used as well as the image ratio of 4/5 in the binarized images. The glacier surface at Parón Range has suffered a reduction of 18% in the last 24 years.

Palabras clave : multifractals; fractal dimension; NDSI; ratio image 4/5; box counting; multitemporal analysis.

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