Table of Contents
Remote Sens., Volume 9, Issue 3 (March 2017)
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Cover Story (view full-size image) Climatic changes and increasing water demands are threatening water resources in many regions of [...] Read more. Climatic changes and increasing water demands are threatening water resources in many regions of the world. In 2015, a state of emergency was declared in Bolivia when Poopó Lake, the second biggest national lake, completely dried up. In this region, geopolitical and socio-economic contexts prevent the maintenance of a suitable hydrological network for water resources monitoring. Alternatively, we proposed the use of remote sensing products to analyze the respective weight of climate variability and water demand related to increasing cultivated areas. Landsat imagery provided the opportunity to observe the extent of the variation of Lake Poopó over the period 1990–2015. Lake extent fluctuations were accounted for by regional precipitation and evapotranspiration, derived from remote sensing data. Results show that climate variability alone does not explain Lake Poopó drying up, but that agriculture also played a major role. View this paper.