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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Communications Earth & Environment

ISSN

2662-4435

e-ISSN

2662-4435

Svazek periodika

6

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

937

Kód UT WoS článku

001620493500002

EID výsledku v databázi Scopus

2-s2.0-105022643999