Two new remotely sensed leaf area index (LAI) and surface soil moisture (SSM) satellite-derived products are compared with two sets of simulations of the ORganizing Carbon and Hydrology In Dynamic EcosystEms (ORCHIDEE) and Interactions between Soil, Biosphere and Atmosphere, CO2-reactive (ISBA-A-gs) land surface models. We analyse the interannual variability over the period 1991–2008. The leaf onset and the length of the vegetation growing period (LGP) are derived from both the satellite-derived LAI and modelled LAI. The LGP values produced by the photosynthesis-driven phenology model of ISBA-A-gs are closer to the satellite-derived LAI and LGP than those produced by ORCHIDEE. In the latter, the phenology is based on a growing degree day model for leaf onset, and on both climatic conditions and leaf life span for senescence. Further, the interannual variability of LAI is better captured by ISBA-A-gs than by ORCHIDEE. In order to investigate how recent droughts affected vegetation over the Euro-Mediterranean area, a case study addressing the summer 2003 drought is presented. It shows a relatively good agreement of the modelled LAI anomalies with the observations, but the two models underestimate plant regrowth in the autumn. A better representation of the root-zone soil moisture profile could improve the simulations of both models. The satellite-derived SSM is compared with SSM simulations of ISBA-A-gs only, as ORCHIDEE has no explicit representation of SSM. Overall, the ISBA-A-gs simulations of SSM agree well with the satellite-derived SSM and are used to detect regions where the satellite-derived product could be improved. Finally, a correspondence is found between the interannual variability of detrended SSM and LAI. The predictability of LAI is less pronounced using remote sensing observations than using simulated variables. However, consistent results are found in July for the croplands of the Ukraine and southern Russia.
en
dc.description.sponsorship
GEOLAND2
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dc.language
English
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dc.language.iso
en
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dc.publisher
Copernicus Publications
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dc.relation.ispartof
Geoscientific Model Development
-
dc.rights.uri
http://creativecommons.org/licenses/by/3.0/
-
dc.title
Suitability of modelled and remotely sensed essential climate variables for monitoring Euro-Mediterranean droughts
en
dc.type
Article
en
dc.type
Artikel
de
dc.rights.license
Creative Commons Attribution 3.0 Unported
en
dc.rights.license
Creative Commons Namensnennung 3.0 Unported
de
dc.contributor.affiliation
CNRM-GAME, UMR3589 (Météo France, CNRS) Toulouse, France
-
dc.contributor.affiliation
CNRM-GAME, UMR3589 (Météo France, CNRS) Toulouse, France
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dc.contributor.affiliation
Laboratoire des Sciences du Climat et de l'Environnement, IPSL, CEA/CNRS/UVSQ - UMR8212, Gif-sur-Yvette, France
-
dc.contributor.affiliation
INRA, EMMAH - UMR1114, Avignon, France
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dc.contributor.affiliation
Laboratoire des Sciences du Climat et de l'Environnement, IPSL, CEA/CNRS/UVSQ - UMR8212, Gif-sur-Yvette, France
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dc.relation.grantno
218795
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dc.rights.holder
The Author(s) 2014
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dc.type.category
Original Research Article
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tuw.journal.peerreviewed
true
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tuw.peerreviewed
true
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tuw.version
vor
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wb.publication.intCoWork
International Co-publication
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dcterms.isPartOf.title
Geoscientific Model Development
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tuw.publication.orgunit
E120 - Department für Geodäsie und Geoinformation
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tuw.publisher.doi
10.5194/gmd-7-931-2014
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dc.identifier.eissn
1991-9603
-
dc.identifier.libraryid
AC11360619
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dc.identifier.urn
urn:nbn:at:at-ubtuw:3-2312
-
dc.rights.identifier
CC BY 3.0
en
dc.rights.identifier
CC BY 3.0
de
wb.sci
true
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item.openaccessfulltext
Open Access
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item.openairecristype
http://purl.org/coar/resource_type/c_2df8fbb1
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item.grantfulltext
open
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application/pdf
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item.languageiso639-1
en
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item.openairetype
research article
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item.fulltext
with Fulltext
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item.cerifentitytype
Publications
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crisitem.author.dept
CNRM-GAME, UMR3589 (Météo France, CNRS) Toulouse, France
-
crisitem.author.dept
CNRM-GAME, UMR3589 (Météo France, CNRS) Toulouse, France
-
crisitem.author.dept
Laboratoire des Sciences du Climat et de l'Environnement, IPSL, CEA/CNRS/UVSQ - UMR8212, Gif-sur-Yvette, France
-
crisitem.author.dept
E120-08 - Forschungsbereich Klima- und Umweltfernerkundung
-
crisitem.author.dept
INRA, EMMAH - UMR1114, Avignon, France
-
crisitem.author.dept
Laboratoire des Sciences du Climat et de l'Environnement, IPSL, CEA/CNRS/UVSQ - UMR8212, Gif-sur-Yvette, France