Publications by authors named "M C FREPPAZ"
Rock glaciers (RGs) provide significant water resources in mountain areas under climate change. Recent research has highlighted high concentrations of solutes including trace elements in RG-fed waters, with negative implications on water quality. Yet, sparse studies from a few locations hinder conclusions about the main drivers of solute export from RGs.
View Article and Find Full Text PDFRock glaciers are the most prominent permafrost-related mountain landforms. This study investigates the effects of the discharge from an intact rock glacier on the hydrological, thermal and chemical dynamics of a high-elevation stream in the NW Italian Alps. Despite draining only 39 % of the watershed area, the rock glacier sourced a disproportionately large amount of discharge to the stream, with the highest relative contribution to the catchment streamflow occurring in late summer - early autumn (up to 63 %).
View Article and Find Full Text PDFSoil erosion can present a major threat to agriculture due to loss of soil, nutrients, and organic carbon. Therefore, soil erosion modelling is one of the steps used to plan suitable soil protection measures and detect erosion hotspots. A bibliometric analysis of this topic can reveal research patterns and soil erosion modelling characteristics that can help identify steps needed to enhance the research conducted in this field.
View Article and Find Full Text PDFArticle Synopsis
- The study reviewed soil erosion prediction models from peer-reviewed literature published between 1994 and 2017, aiming to identify key processes, application regions, and gaps in research.
- A collaborative effort involving 67 soil-erosion scientists led to the creation of the 'Global Applications of Soil Erosion Modelling Tracker (GASEMT)', which compiled 3030 modeling records from 126 countries, covering all continents except Antarctica.
- The GASEMT database is open-source, designed to support future soil erosion research and the United Nations' global soil erosion assessment, allowing for community contributions and enhancements.
Large amounts of dissolved organic matter (DOM) are stored in mountain glaciers. However, few researches have analysed the optical characteristics of DOM in surface waters fed by mountain glaciers and their seasonal variations. In a pond fed by a glacier we observed simultaneous decreases in the dissolved organic carbon, and increases in both absorbance at 254 nm and specific absorption coefficient (SUVA) during the ice-free season 2015.
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