What does this research mean for the field?

The record-low 2023 western North Pacific tropical cyclone season was driven by seasonal asymmetry, where a weakened Indian summer monsoon counteracted unfavorable ocean conditions to maintain summer cyclogenesis, before remote ocean forcing dominated to suppress autumn cyclogenesis. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.CHALLENGES_CONSENSUS.

What question did this study set out to answer?

Investigate the atmospheric and oceanic mechanisms driving the record-low 2023 western North Pacific tropical cyclone season across different months.

August 22, 2026npj Climate and Atmospheric ScienceOpen Access

Monsoon–ocean competition shapes the record-low 2023 western North Pacific tropical cyclone season

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Authors

LPLixia PanShanghai Jiao Tong University JCJiepeng ChenShenyang Pharmaceutical University SCSheng ChenSouth China Sea Institute Of Oceanology

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Implication

Atmospheric analysis reveals that monsoon and ocean competition drove the record-low 2023 western North Pacific typhoon season, highlighting new pathways for tropical cyclone prediction.

Key Points

Investigate the atmospheric and oceanic mechanisms driving the record-low 2023 western North Pacific tropical cyclone season across different months.
Analyzed seasonal tropical cyclone genesis frequency and large-scale atmospheric circulation anomalies across the western North Pacific during 2023.
Evaluated the interactive effects of remote ocean forcing from El Niño–Southern Oscillation and atmospheric Kelvin-wave responses from the Indian summer monsoon.
Summer tropical cyclone genesis remained near climatological averages because a weakened Indian summer monsoon generated an atmospheric Kelvin wave, creating a cyclonic anomaly that offset unfavorable ocean conditions.
Remote oceanic forcing dominated the basin during autumn, producing unprecedented suppression of storm genesis and establishing the record-low seasonal total.

Cite This Study

Pan et al. (2026) studied this question.

synapsesocial.com/papers/6a895fc4ca7ade938187ea4d https://doi.org/10.1038/s41612-026-01515-4

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Implication

Atmospheric analysis reveals that monsoon and ocean competition drove the record-low 2023 western North Pacific typhoon season, highlighting new pathways for tropical cyclone prediction.

Monsoon–ocean competition shapes the record-low 2023 western North Pacific tropical cyclone season

Discussion

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Implication

Key Points

Cite This Study

Monsoon–ocean competition shapes the record-low 2023 western North Pacific tropical cyclone season

Discussion

Member takes

Implication

Key Points

Cite This Study

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