Cited by 241Climate variability and modelsGeology and Paleoclimatology ResearchMeteorological Phenomena and Simulations

Low-frequency variability of the Indian monsoon-ENSO relationship and the tropical Atlantic: the “weakening” of the 1980s and 1990s.

Open access
Kucharski, F., Bracco, A., Yoo, J. H., Molteni, F.·2007·Journal of Climate

Abstract

The Indian monsoon–El Niño–Southern Oscillation (ENSO) relationship, according to which a drier than normal monsoon season precedes peak El Niño conditions, weakened significantly during the last two decades of the twentieth century. In this work an ensemble of integrations of an atmospheric general circulation model (AGCM) coupled to an ocean model in the Indian Basin and forced with observed sea surface temperatures (SSTs) elsewhere is used to investigate the causes of such a weakening. The observed interdecadal variability of the ENSO–monsoon relationship during the period 1950–99 is realistically simulated by the model and a dominant portion of the variability is associated with changes in the tropical Atlantic SSTs in boreal summer. In correspondence to ENSO, the tropical Atlantic SSTs display negative anomalies south of the equator in the last quarter of the twentieth century and weakly positive anomalies in the previous period. Those anomalies in turn produce heating anomalies, which excite a Rossby wave response in the Indian Ocean in both the model and the reanalysis data, impacting the time-mean monsoon circulation. The proposed mechanism of remote response of the Indian rainfall to tropical Atlantic sea surface temperatures is further tested forcing the AGCM coupled to the ocean model in the Indian Basin with climatological SSTs in the Atlantic Ocean and observed anomalies elsewhere. In this second ensemble the ENSO–monsoon relationship is characterized by a stable and strong anticorrelation through the whole second half of the twentieth century.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1175/jcli4254.1

Cites

48 of 48 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The AZM impacts the Indian summer monsoon, altering the ENSO-ISM connection.

    “The AZM impacts the Indian summer monsoon (ISM), altering the ENSO-ISM connection (Kucharski et al., 2007(Kucharski et al., , 2008;;Wang et al., 2009;Barimalala et al., 2012Barimalala et al., , 2013)).”

    From The tropical atlantic observing system (2019) · cites this paper as Kucharski et al., 2007

    The section “The role of tropical Atlantic SSTs” reports that Atlantic SST anomalies affect Indian monsoon circulation and reduce the anticorrelation between ENSO and Indian monsoon rainfall. The Discussion and conclusions likewise links south-equatorial Atlantic SST anomalies to a weakened ENSO–monsoon relationship. Neither passage identifies those anomalies specifically as the Atlantic Zonal Mode (AZM), so the AZM-specific attribution is not established by our copy. Page numbers were not supplied. (LLM, conf=0.84)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

10 of the 58 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Kucharski, F., Bracco, A., Yoo, J. H., & Molteni, F.
Affiliations
  • The Abdus Salam International Centre for Theoretical Physics (ICTP) (IT)
  • Woods Hole Oceanographic Institution (US)
Venue
Journal of Climate
Published
2007-08-15
Volume
20
Issue
16
Pages
4255-4266
ISSN
  • 0894-8755 (ISSN-L)
  • 1520-0442
OpenAlex
W2000641221
Cited by
241
References
58
Citations by year
2026: 7 · 2025: 7 · 2024: 13 · 2023: 13 · 2022: 19 · 2021: 29 · 2020: 29 · 2019: 12 · 2018: 12 · 2017: 11 · 2016: 8 · 2015: 15 · 2014: 10 · 2013: 10 · 2012: 4
FWCI
7.84
Type
journal article
Language
en
Open access
Locations
  • Journal of Climate (publishedVersion)
  • Open Access Server of the Woods Hole Scientific Community (Woods Hole Scientific Community) (submittedVersion)
Funders
European Commission
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Climate variability and models
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Meteorological Phenomena and Simulations
Keywords
Indian monsoon, ENSO, interdecadal variability, Rossby wave response

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review