Mauricio Ormachea
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View article: Arsenic mobility in hydrogeologic system of Bolivian Altiplano: Status and comparison of the Lower Katari and Southern Poopó Basins
Arsenic mobility in hydrogeologic system of Bolivian Altiplano: Status and comparison of the Lower Katari and Southern Poopó Basins Open
Water resource in LKB (Lower Katari Basin) and SPB (Southern Poopó Basin) [TDPS (Lake Titicaca – Desaguadero River – Lake Poopó – Salt Flat of Coipasa) system] the southeastern part of Lake Titicaca and Lake Poopó in Bolivian Altiplano are…
View article: Towards the Improvement of Soil Salinity Mapping in a Data-Scarce Context Using Sentinel-2 Images in Machine-Learning Models
Towards the Improvement of Soil Salinity Mapping in a Data-Scarce Context Using Sentinel-2 Images in Machine-Learning Models Open
Several recent studies have evidenced the relevance of machine-learning for soil salinity mapping using Sentinel-2 reflectance as input data and field soil salinity measurement (i.e., Electrical Conductivity-EC) as the target. As soil EC m…
View article: Towards a comprehensive understanding of the “Origin, distribution, and biogeochemistry of arsenic in the Altiplano-Puna plateau of South America” with the IGCP-707 project
Towards a comprehensive understanding of the “Origin, distribution, and biogeochemistry of arsenic in the Altiplano-Puna plateau of South America” with the IGCP-707 project Open
Arsenic (As) is one of the most prevalent geogenic trace elements in the groundwater environment that presents a worldwide health concern.In South America, the "Altiplano-Puna" plateau exhibits high As concentrations in water that could be…
View article: Artificial recharge effects in water balance of a peri-urban semi-arid catchment: a case study in an Andean aquifer using WEAP-MODFLOW
Artificial recharge effects in water balance of a peri-urban semi-arid catchment: a case study in an Andean aquifer using WEAP-MODFLOW Open
<p>Artificial recharge in urban and peri-urbans areas is not a typical practice, but the prolonged severe drought in central Chile has encouraged the study of this practice as an option for optimal and sustainable water management. T…
View article: Geochemical mechanisms of natural arsenic mobility in the hydrogeologic system of Lower Katari Basin, Bolivian Altiplano
Geochemical mechanisms of natural arsenic mobility in the hydrogeologic system of Lower Katari Basin, Bolivian Altiplano Open
Arsenic (As) contamination of drinking water is a worldwide problem. The natural origin of As, its mobility, and transport are of paramount interest in Bolivian Altiplano due to its presence in mineral deposits, brines, hot springs, and vo…
View article: Hydrogeochemical contrasts in the shallow aquifer systems of the Lower Katari Basin and Southern Poopó Basin, Bolivian Altiplano
Hydrogeochemical contrasts in the shallow aquifer systems of the Lower Katari Basin and Southern Poopó Basin, Bolivian Altiplano Open
Drinking water sources in the southeastern part of Lake Titicaca (Lower Katari Basin: LKB) and the southern part of Lake Poopó (Southern Poopó Basin: SPB) have high concentrations of arsenic (As), >10 μg/L compared to the WHO and NB-512 gu…
View article: Spatial variability of trace elements with Moran’s I Analysis for shallow groundwater quality in the Lower Katari Basin, Bolivian Altiplano
Spatial variability of trace elements with Moran’s I Analysis for shallow groundwater quality in the Lower Katari Basin, Bolivian Altiplano Open
The southeastern part of the Titicaca Lake near the Cohana Bay in the Bolivian Altiplano, has environmental problems caused mainly by urban and industrial wastes upstream of the Katari Basin and by natural geological conditions. This envir…