Temporal hydrological drought clustering varies with climate and land-surface processes
dc.contributor.author
Brunner, Manuela
dc.contributor.author
Stahl, Kerstin
dc.date.accessioned
2023-03-06T09:18:55Z
dc.date.available
2023-03-04T04:52:05Z
dc.date.available
2023-03-06T09:18:55Z
dc.date.issued
2023-03
dc.identifier.issn
1748-9326
dc.identifier.issn
1748-9318
dc.identifier.other
10.1088/1748-9326/acb8ca
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/601521
dc.identifier.doi
10.3929/ethz-b-000601521
dc.description.abstract
Recurrent hydrological droughts (streamflow deficits) are highly impactful and challenge water management. Regional studies have provided some evidence of drought-rich periods at specific time scales. However, it is yet unclear where and when droughts cluster in time. Here, we test for significant temporal hydrological drought clustering at subseasonal to multi-year time scales in different climate zones around the world using two different clustering metrics, i.e. the dispersion index and Ripley’s K. We find that (1) only 10% of the catchments show temporal hydrological drought clustering, (2) hydrological droughts cluster from seasonal to 3-year time scales with clustering being strongest at an annual time scale; (3) arid catchments with a low snow fraction are most prone to temporal drought clustering; and (4) temporal clustering is more pronounced for hydrological than for meteorological droughts. These results suggest that besides climatic drivers, land-surface processes importantly influence the temporal clustering behavior of hydrological droughts.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
IOP Publishing
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
streamflow drought
en_US
dc.subject
hydrological drought
en_US
dc.subject
temporal clustering
en_US
dc.subject
successive droughts
en_US
dc.subject
large-sample datasets
en_US
dc.subject
multi-year droughts
en_US
dc.title
Temporal hydrological drought clustering varies with climate and land-surface processes
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2023-02-14
ethz.journal.title
Environmental Research Letters
ethz.journal.volume
18
en_US
ethz.journal.issue
3
en_US
ethz.journal.abbreviated
Environ. Res. Lett.
ethz.pages.start
034011
en_US
ethz.size
11 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Bristol
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02717 - Institut für Atmosphäre und Klima / Inst. Atmospheric and Climate Science::09788 - Brunner, Manuela Irene / Brunner, Manuela Irene
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02717 - Institut für Atmosphäre und Klima / Inst. Atmospheric and Climate Science::09788 - Brunner, Manuela Irene / Brunner, Manuela Irene
ethz.date.deposited
2023-03-04T04:52:06Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2023-03-06T09:18:57Z
ethz.rosetta.lastUpdated
2024-02-02T20:43:57Z
ethz.rosetta.versionExported
true
ethz.COinS
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