Disruption of Drought Teleconnections Between ENSO-Influenced Regions Around 1700 CE

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F25%3A00637733" target="_blank" >RIV/86652079:_____/25:00637733 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/25:00141839 RIV/62156489:43210/25:43927244

Výsledek na webu

<a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL115600" target="_blank" >https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL115600</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1029/2025GL115600" target="_blank" >10.1029/2025GL115600</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Disruption of Drought Teleconnections Between ENSO-Influenced Regions Around 1700 CE

Popis výsledku v původním jazyce

Our understanding of pre-modern El Ni & ntildeo Southern Oscillation (ENSO) variability is reliant on proxy records, often distant from the center of ENSO activity in the equatorial Pacific Ocean. Here, we assess the relationship between reconstructed soil moisture in four distant ENSO-influenced regions over the past 400 years. A major breakdown in the teleconnection of regional drought conditions in Asia, Eastern Australia, and North America is identified around 1700 CE. The statistically significant decline in inter-series correlations (p < 0.01) represents a previously unknown aspect of global hydroclimate dynamics. We hypothesize that the disruption was driven by ENSO weakening and/or by a large-scale multi-decadal reconfiguration of ocean-atmosphere circulation. Data assimilation estimates of soil moisture from the same regions fail to produce results of the same magnitude, potentially due to an overreliance of ENSO influence on the boundaries of spatial covariance in the underlying climate models.

Název v anglickém jazyce

Disruption of Drought Teleconnections Between ENSO-Influenced Regions Around 1700 CE

Popis výsledku anglicky

Our understanding of pre-modern El Ni & ntildeo Southern Oscillation (ENSO) variability is reliant on proxy records, often distant from the center of ENSO activity in the equatorial Pacific Ocean. Here, we assess the relationship between reconstructed soil moisture in four distant ENSO-influenced regions over the past 400 years. A major breakdown in the teleconnection of regional drought conditions in Asia, Eastern Australia, and North America is identified around 1700 CE. The statistically significant decline in inter-series correlations (p < 0.01) represents a previously unknown aspect of global hydroclimate dynamics. We hypothesize that the disruption was driven by ENSO weakening and/or by a large-scale multi-decadal reconfiguration of ocean-atmosphere circulation. Data assimilation estimates of soil moisture from the same regions fail to produce results of the same magnitude, potentially due to an overreliance of ENSO influence on the boundaries of spatial covariance in the underlying climate models.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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

Geophysical Research Letters

ISSN

0094-8276

e-ISSN

1944-8007

Svazek periodika

52

Číslo periodika v rámci svazku

14

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

e2025GL115600

Kód UT WoS článku

001526910200001

EID výsledku v databázi Scopus

2-s2.0-105010566617