#6296. Drying conditions in Switzerland–indication from a 35-year Landsat time-series analysis of vegetation water content estimates to support SDGs

September 2026publication date
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Journal’s subject area:
Computers in Earth Sciences;
Computer Science Applications;
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Abstract:
Exacerbated by climate change, Europe has experienced series of hot and dry summer since the beginning of the 21st century. The importance of land conditions became an international concern with a dedicated sustainable development goal (SDG), the SDG 15. It calls for developing and finding innovative solutions to follow and evaluate impacts of changing land conditions induced by various driving forces. In Switzerland, drought risk will significantly increase in the coming decades with severe consequences on agriculture, energy production and vegetation. In this paper, we used a 35-year satellite-derived annual and seasonal times-series of normalized difference water index (NDWI) to follow vegetation water content evolution at different spatial and temporal scales across Switzerland and related them to temperature and precipitation to investigate possible responses of changing climatic conditions.
Keywords:
big Earth data; Climate change; drought; Earth Observation; ecosystems; land degradation; Landsat; NDWI; SDG 15; Switzerland; vegetation

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