Journal
REMOTE SENSING LETTERS
Volume 8, Issue 1, Pages 78-85Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/2150704X.2016.1235811
Keywords
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Funding
- Fundacao de Amparo a Pesquisa do Estado do Rio Grande do Sul (FAPERGS)
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In this article, the possibility of using a Landsat image series to calculate the decadal changes in the area of mountain glaciers in the eastern cordillera of Peru is explored. In the pilot study site, changes in the glacier area at different elevation ranges to understand the altitudinal gradients and the directional properties of glacier retreat during the period 1975-2015 were calculated. This approach can be used in the entire tropical Andes, particularly in the outer tropics, depending on the availability of cloud-free images during the dry season. Similar to other regions in the tropical Andes, glaciers situated below 5000 ma.s.l. have lost nearly 81% of the initial area. It is observed that those glaciers directed towards north-east and east shows higher retreat and this may influence the glacier-fed rivers in the Amazon Basin. Future research will estimate the glacier variations in the entire eastern cordilleras and the corresponding changes in the water discharge volume in the Amazon Basin.
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