Temperature and discharge variations in natural mineral water springs due to climate variability: a case study in the Piedmont Alps (NW Italy)

• DOI: 10.1007/s10653-021-00864-8
• Publication Date: 2021-03-03T20:02:40Z
• Authors: Leone Bastiancich; Manuela Lasagna; Susanna Mancini; Mauro Falco; Domenico Antonio ...
• Keywords: Original Paper; Climate variability; Discharge; Mountain aquifer resilience; Natural mineral water spring; Temperature; Trend; 13. Climate action; Climate Change; Temperature; 0207 environmental engineering; Natural Springs; 02 engineering and technology; Mineral Waters; 15. Life on land; Groundwater

In the context of global climate change, understanding relationships between and groundwater is increasingly important. This study in NW Alps represents first regional-scale investigation feature variation mountain aquifers due to variability. The analysis temperature discharge 28 natural mineral water springs meteorological parameters (rainfall air temperature) permitted us evaluate annual behaviour possible trends these during period from 2001 2018. showed a positive trend almost everywhere, with rise up 0.03 °C/year. contrast, only ten for temperature, but smallest rates increase. Moreover, despite substantial stability rainfall amount, 50% analysed (29 21% negative trends, respectively) low variations. Finally, cross-correlation analyses proved close relationship temperatures, time lag 0 3 months, spring 1 months. particular, closely connected snow melting subordinate rainfall. These results highlight existing correlations various topographic studied area provide preliminary framework impacts climatic variability on availability exploited resources.