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Persistent multi-scale fluctuations shift European hydroclimate to its millennial boundaries.

ABSTRACT: In recent years, there has been growing concern about the effect of global warming on water resources, especially at regional and continental scales. The last IPCC report on extremes states that there is medium confidence about an increase on European drought frequency during twentieth century. Here we use the Old World Drought Atlas palaeoclimatic reconstruction to show that when Europe's hydroclimate is examined under a millennial, multi-scale perspective, a significant decrease in dryness can be observed since 1920 over most of central and northern Europe. On the contrary, in the south, drying conditions have prevailed, creating an intense north-to-south dipole. In both cases, hydroclimatic conditions have shifted to, and in some regions exceeded, their millennial boundaries, remaining at these extreme levels for the longest period of the 1000-year-long record.

SUBMITTER: Markonis Y 

PROVIDER: S-EPMC5932079 | biostudies-other | 2018 May

REPOSITORIES: biostudies-other

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Persistent multi-scale fluctuations shift European hydroclimate to its millennial boundaries.

Markonis Y Y   Hanel M M   Máca P P   Kyselý J J   Cook E R ER  

Nature communications 20180502 1

In recent years, there has been growing concern about the effect of global warming on water resources, especially at regional and continental scales. The last IPCC report on extremes states that there is medium confidence about an increase on European drought frequency during twentieth century. Here we use the Old World Drought Atlas palaeoclimatic reconstruction to show that when Europe's hydroclimate is examined under a millennial, multi-scale perspective, a significant decrease in dryness can  ...[more]