Recent south-central Andes water crisis driven by Antarctic amplification is unprecedented over the last eight centuries

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F25%3A00643724" target="_blank" >RIV/86652079:_____/25:00643724 - isvavai.cz</a>
Result on the web
<a href="https://www.nature.com/articles/s43247-025-02858-1" target="_blank" >https://www.nature.com/articles/s43247-025-02858-1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s43247-025-02858-1" target="_blank" >10.1038/s43247-025-02858-1</a>

Result language
angličtina
Original language name
Recent south-central Andes water crisis driven by Antarctic amplification is unprecedented over the last eight centuries
Original language description
Rivers originating from the Andes Mountains are vital water sources for agricultural and societal needs in South America, yet are increasingly threatened by climate change. Here we reconstruct streamflow of the Negro River (Ri & oacute, Negro) in northern Patagonia over the past 827 years using tree-ring records from the south-central Andes foothills. This reconstruction reveals an unprecedented decline in river flow in recent decades. Moisture from the El Ni & ntilde,o-Southern Oscillation and the Southern Annular Mode provides a key water source, but temperature rise has increased atmospheric moisture demand and reduced availability. Antarctic amplification has further disrupted circulation patterns and accelerated warming, intensifying regional aridity. Since the 20th century, the Negro River has experienced a sustained flow reduction of approximately 10% per decade. Projections under various emission scenarios indicate continued decline, highlighting the urgent need for adaptive water management strategies to mitigate escalating water scarcity risks in the region.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10509 - Meteorology and atmospheric sciences

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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