In this paper, a multifractal downscaling technique is applied to adequately transformed and lag corrected normalized difference vegetation index (NDVI) in order to obtain daily estimates of rainfall in an area of the Peruvian Andean high plateau. This downscaling procedure is temporal in nature since the original NDVI information is provided at an irregular temporal sampling period between 8 and 11 days, and the desired final scale is 1 day. The spatial resolution of approximately 1 km remains the same throughout the downscaling process. The results were validated against on-site measurements of meteorological stations distributed in the area under study. © 2017 Duffaut Espinosa et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
DOI:
https://doi.org/10.1371/journal.pone.0168982Altmetric score:
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Publication year
2017
Authors
Espinosa L A D; Posadas A; Carbajal M; Quiroz R
Language
English
Keywords
rainfall, information, statistics, vegetation, ecosystem
Geographic
Chile
