SciELO - Scientific Electronic Library Online

 
vol.13 issue1Grasses (Poaceae) diversity of Lircay (Angaraes, Huancavelica, Peru)Eco-efficiency plan and human water quality analysis in academic and administrative areas at la Molina National Agrarian University author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

  • Have no cited articlesCited by SciELO

Related links

Share


Ecología Aplicada

Print version ISSN 1726-2216

Abstract

MEDINA, Gilberto  and  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.

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

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License