Publication:
How Important is Vegetation Phenology for European Climate and Heat Waves?

cris.virtual.author-orcid0000-0003-3322-9330
cris.virtualsource.author-orcidd8bb91bf-4c20-418a-87a3-1cedf330b3f0
dc.contributor.authorLorenz, Ruth
dc.contributor.authorDavin, Édouard Léopold
dc.contributor.authorLawrence, David M.
dc.contributor.authorStöckli, Reto
dc.contributor.authorSeneviratne, Sonia I.
dc.date.accessioned2024-10-09T17:09:37Z
dc.date.available2024-10-09T17:09:37Z
dc.date.issued2013
dc.description.abstractIt has been hypothesized that vegetation phenology may play an important role for the midlatitude climate. This study investigates the impact of interannual and intraseasonal variations in phenology on European climate using regional climate model simulations. In addition, it assesses the relative importance of interannual variations in vegetation phenology and soil moisture on European summer climate. It is found that drastic phenological changes have a smaller effect on mean summer and spring climate than extreme changes in soil moisture (roughly ¼ of the temperature anomaly induced by soil moisture changes). However, the impact of phenological anomalies during heat waves is found to be more important. Generally, late and weak greening has amplifying effects and early and strong greening has dampening effects on heat waves; however, regional variations are found. The experiments suggest that in the extreme hot 2003 (western and central Europe) and 2007 (southeastern Europe) summers the decrease in leaf area index amplified the heat wave peaks by about 0.5°C for daily maximum temperatures (about half of the effect induced by soil moisture deficit). In contrast to earlier hypotheses, no anomalous early greening in spring 2003 is seen in the phenological dataset employed here. Hence, the results indicate that vegetation feedbacks amplified the 2003 heat wave but were not responsible for its initiation. In conclusion, the results suggest that phenology has a limited effect on European mean summer climate, but its impact can be as important as that induced by soil moisture anomalies in the context of specific extreme events.
dc.description.numberOfPages24
dc.description.sponsorshipOeschger Centre for Climate Change Research (OCCR)
dc.description.sponsorshipPhysics Institute, Climate and Environmental Physics
dc.description.sponsorshipWyss Academy for Nature, Climate Change Scenarios (CCSN)
dc.identifier.doi10.48350/167147
dc.identifier.publisherDOI10.1175/JCLI-D-13-00040.1
dc.identifier.urihttps://boris-portal.unibe.ch/handle/20.500.12422/68620
dc.language.isoen
dc.publisherAmerican Meteorological Society
dc.relation.ispartofJournal of Climate
dc.relation.issn0894-8755
dc.titleHow Important is Vegetation Phenology for European Climate and Heat Waves?
dc.typearticle
dspace.entity.typePublication
dspace.file.typetext
oaire.citation.endPage10100
oaire.citation.issue24
oaire.citation.startPage10077
oaire.citation.volume26
oairecerif.author.affiliationWyss Academy for Nature, Climate Change Scenarios (CCSN)
unibe.additional.sponsorshipOeschger Centre for Climate Change Research (OCCR)
unibe.additional.sponsorshipPhysics Institute, Climate and Environmental Physics
unibe.contributor.rolecreator
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unibe.contributor.rolecreator
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unibe.date.licenseChanged2022-04-26 09:51:54
unibe.description.ispublishedpub
unibe.eprints.legacyId167147
unibe.journal.abbrevTitleJ CLIMATE
unibe.refereedTRUE
unibe.subtype.articlejournal

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