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Persistent multi-scale fluctuations shift European hydroclimate to its millennial boundaries.
Y Markonis1, M Hanel2, P Máca2
1Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Praha - Suchdol, 165 00, Czech Republic. markonis@fzp.czu.cz.
Nature Communications
|May 4, 2018
Summary
Global warming impacts European water resources, with central and northern Europe becoming less dry since 1920. Southern Europe, however, faces intensifying drought conditions, creating a significant north-to-south climate dipole.
Area of Science:
- Paleoclimatology
- Climate Science
- Hydrology
Background:
- Global warming raises concerns about regional and continental water resources.
- Previous assessments indicated medium confidence in increased European drought frequency during the 20th century.
Purpose of the Study:
- To analyze millennial-scale hydroclimatic changes in Europe.
- To investigate the long-term trends and boundaries of European drought and wetness.
Main Methods:
- Utilized the Old World Drought Atlas palaeoclimatic reconstruction.
- Examined hydroclimate from a millennial, multi-scale perspective.
Main Results:
- Observed a significant decrease in dryness in central and northern Europe since 1920.
- Identified prevailing drying conditions in southern Europe, forming a north-to-south dipole.
- Noted that hydroclimatic conditions in both regions have shifted beyond, or to the extremes of, their millennial boundaries.
Conclusions:
- European hydroclimate has experienced significant shifts beyond millennial norms.
- The observed changes represent the longest period of extreme hydroclimatic conditions in the 1000-year record.
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