Satellites reveal hotspots of global river extent change

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dc.contributor.authorWu, Qianhanen
dc.contributor.authorKe, Linghongen
dc.contributor.authorWang, Jidaen
dc.contributor.authorPavelsky, Tamlin M.en
dc.contributor.authorAllen, George H.en
dc.contributor.authorSheng, Yongweien
dc.contributor.authorDuan, Xuejunen
dc.contributor.authorZhu, Yunqiangen
dc.contributor.authorWu, Jinen
dc.contributor.authorWang, Leien
dc.contributor.authorLiu, Kaien
dc.contributor.authorChen, Tanen
dc.contributor.authorZhang, Wensongen
dc.contributor.authorFan, Chenyuen
dc.contributor.authorYong, Binen
dc.contributor.authorSong, Chunqiaoen
dc.date.accessioned2024-02-12T19:59:56Zen
dc.date.available2024-02-12T19:59:56Zen
dc.date.issued2023-03-22en
dc.description.abstractRivers are among the most diverse, dynamic, and productive ecosystems on Earth. River flow regimes are constantly changing, but characterizing and understanding such changes have been challenging from a long-term and global perspective. By analyzing water extent variations observed from four-decade Landsat imagery, we here provide a global attribution of the recent changes in river regime to morphological dynamics (e.g., channel shifting and anabranching), expansion induced by new dams, and hydrological signals of widening and narrowing. Morphological dynamics prevailed in ~20% of the global river area. Booming reservoir constructions, mostly skewed in Asia and South America, contributed to ~32% of the river widening. The remaining hydrological signals were characterized by contrasting hotspots, including prominent river widening in alpine and pan-Arctic regions and narrowing in the arid/semi-arid continental interiors, driven by varying trends in climate forcing, cryospheric response to warming, and human water management. Our findings suggest that the recent river extent dynamics diverge based on hydroclimate and socio-economic conditions, and besides reflecting ongoing morphodynamical processes, river extent changes show close connections with external forcings, including climate change and anthropogenic interference.en
dc.description.versionPublished versionen
dc.format.extent13 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifierARTN 1587 (Article number)en
dc.identifier.doihttps://doi.org/10.1038/s41467-023-37061-3en
dc.identifier.eissn2041-1723en
dc.identifier.issn2041-1723en
dc.identifier.issue1en
dc.identifier.orcidAllen, George [0000-0001-8301-5301]en
dc.identifier.other10.1038/s41467-023-37061-3 (PII)en
dc.identifier.pmid36949069en
dc.identifier.urihttps://hdl.handle.net/10919/117954en
dc.identifier.volume14en
dc.language.isoenen
dc.publisherNature Portfolioen
dc.relation.urihttps://www.ncbi.nlm.nih.gov/pubmed/36949069en
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectClimate Changeen
dc.subjectYellow Riveren
dc.subjectBrahmaputra Riveren
dc.subjectHuman Dominationen
dc.subjectWater Storageen
dc.subjectSurface Wateren
dc.subjectBasinen
dc.subjectVulnerabilityen
dc.subjectReservoirsen
dc.subjectDischargeen
dc.titleSatellites reveal hotspots of global river extent changeen
dc.title.serialNature Communicationsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherArticleen
dc.type.otherJournalen
dcterms.dateAccepted2023-02-21en
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Scienceen
pubs.organisational-group/Virginia Tech/Science/Geosciencesen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Science/COS T&R Facultyen

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