More extreme Indian monsoon rainfall in El Niño summers.
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| Title: | More extreme Indian monsoon rainfall in El Niño summers. |
|---|---|
| Authors: | Hill, Spencer A., Meyers, Destiny Zamir, Sobel, Adam H., Biasutti, Michela, Cane, Mark A., Tippett, Michael K., Ahmed, Fiaz |
| Source: | Science. 9/18/2025, Vol. 389 Issue 6766, p1220-1224. 5p. |
| Subjects: | Monsoons, Meteorological precipitation, Rainfall frequencies, Extreme weather, Weather records |
| Abstract: | Extreme rainfall during the Indian summer monsoon can be destructive and deadly to the world's third-largest economy and most populous country. Although El Niño events in the equatorial Pacific are known to suppress total summer rainfall throughout India, we show using observational data spanning 1901 to 2020 that, counterintuitively, they simultaneously intensify extreme daily rainfall. This is partly driven by increases in extreme daily values of convective buoyancy, provided that both the undilute instability of near-surface air and the dilution by mixing with drier air above are considered. El Niño could plausibly drive similar changes in other tropical regions, and our framework could be further applied to changes in hourly extremes, to other internal variability modes, and to forced trends under climate change. Editor's summary: India, the world's most populous country and third-largest economy, depends on the rainfall it receives during the summer monsoon season. How much and when that rain falls has major implications for the environment, agriculture, water supply, and river flow. Hill et al. found that although the well-documented effect of El Niño events is to decrease summer rainfall, it also paradoxically intensifies extreme daily precipitation amounts, thereby resulting in hazardous conditions across the region. The processes that create this intensification may be important in other tropical locations as well. —Jesse Smith [ABSTRACT FROM AUTHOR] |
| Copyright of Science is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
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| Header | DbId: pbh DbLabel: Psychology and Behavioral Sciences Collection An: 188104188 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: More extreme Indian monsoon rainfall in El Niño summers. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Hill%2C+Spencer+A%2E%22">Hill, Spencer A.</searchLink><br /><searchLink fieldCode="AR" term="%22Meyers%2C+Destiny+Zamir%22">Meyers, Destiny Zamir</searchLink><br /><searchLink fieldCode="AR" term="%22Sobel%2C+Adam+H%2E%22">Sobel, Adam H.</searchLink><br /><searchLink fieldCode="AR" term="%22Biasutti%2C+Michela%22">Biasutti, Michela</searchLink><br /><searchLink fieldCode="AR" term="%22Cane%2C+Mark+A%2E%22">Cane, Mark A.</searchLink><br /><searchLink fieldCode="AR" term="%22Tippett%2C+Michael+K%2E%22">Tippett, Michael K.</searchLink><br /><searchLink fieldCode="AR" term="%22Ahmed%2C+Fiaz%22">Ahmed, Fiaz</searchLink> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Science%22">Science</searchLink>. 9/18/2025, Vol. 389 Issue 6766, p1220-1224. 5p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Monsoons%22">Monsoons</searchLink><br /><searchLink fieldCode="DE" term="%22Meteorological+precipitation%22">Meteorological precipitation</searchLink><br /><searchLink fieldCode="DE" term="%22Rainfall+frequencies%22">Rainfall frequencies</searchLink><br /><searchLink fieldCode="DE" term="%22Extreme+weather%22">Extreme weather</searchLink><br /><searchLink fieldCode="DE" term="%22Weather+records%22">Weather records</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Extreme rainfall during the Indian summer monsoon can be destructive and deadly to the world's third-largest economy and most populous country. Although El Niño events in the equatorial Pacific are known to suppress total summer rainfall throughout India, we show using observational data spanning 1901 to 2020 that, counterintuitively, they simultaneously intensify extreme daily rainfall. This is partly driven by increases in extreme daily values of convective buoyancy, provided that both the undilute instability of near-surface air and the dilution by mixing with drier air above are considered. El Niño could plausibly drive similar changes in other tropical regions, and our framework could be further applied to changes in hourly extremes, to other internal variability modes, and to forced trends under climate change. Editor's summary: India, the world's most populous country and third-largest economy, depends on the rainfall it receives during the summer monsoon season. How much and when that rain falls has major implications for the environment, agriculture, water supply, and river flow. Hill et al. found that although the well-documented effect of El Niño events is to decrease summer rainfall, it also paradoxically intensifies extreme daily precipitation amounts, thereby resulting in hazardous conditions across the region. The processes that create this intensification may be important in other tropical locations as well. —Jesse Smith [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Science is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=188104188 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1126/science.adg5577 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 5 StartPage: 1220 Subjects: – SubjectFull: Monsoons Type: general – SubjectFull: Meteorological precipitation Type: general – SubjectFull: Rainfall frequencies Type: general – SubjectFull: Extreme weather Type: general – SubjectFull: Weather records Type: general Titles: – TitleFull: More extreme Indian monsoon rainfall in El Niño summers. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Hill, Spencer A. – PersonEntity: Name: NameFull: Meyers, Destiny Zamir – PersonEntity: Name: NameFull: Sobel, Adam H. – PersonEntity: Name: NameFull: Biasutti, Michela – PersonEntity: Name: NameFull: Cane, Mark A. – PersonEntity: Name: NameFull: Tippett, Michael K. – PersonEntity: Name: NameFull: Ahmed, Fiaz IsPartOfRelationships: – BibEntity: Dates: – D: 18 M: 09 Text: 9/18/2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 00368075 Numbering: – Type: volume Value: 389 – Type: issue Value: 6766 Titles: – TitleFull: Science Type: main |
| ResultId | 1 |
