Drought Influences the Accuracy of Simulated Ecosystem Fluxes: A Model-Data Meta-analysis for Mediterranean Oak Woodlands Vargas, R en_US Sonnentag, O en_US Abramowitz, Gabriel en_US Carrara, A en_US Chen, J en_US Ciais, P en_US Correia, A en_US Keenan, T en_US Kobayashi, H en_US Ourcival, J en_US Papale, D en_US Pearson, D en_US Pereira, J en_US Piao, S en_US Rambal, S en_US Baldocchi, D en_US 2021-11-25T12:30:08Z 2021-11-25T12:30:08Z 2013 en_US
dc.description.abstract Water availability is the dominant control of global terrestrial primary productivity with concurrent effects on evapotranspiration and ecosystem respiration, especially in water-limited ecosystems. Process-oriented ecosystem models are critical tools for understanding land-atmosphere exchanges and for up-scaling this information to regional and global scales. Thus, it is important to understand how ecosystem models simulate ecosystem fluxes under changing weather conditions. Here, we applied both time-series analysis and meta-analysis techniques to study how five ecosystem process-oriented models-simulated gross primary production (GPP), ecosystem respiration (Reco), and evapotranspiration (ET). Ecosystem fluxes were simulated for 3 years at a daily time step from four evergreen and three deciduous Mediterranean oak woodlands (21 site-year measurements; 105 site-year-simulations). Mediterranean ecosystems are important test-beds for studying the interannual dynamics of soil moisture on ecosystem mass and energy exchange as they experience cool, wet winters with hot, dry summers and are typically subject to drought. Results show data-model disagreements at multiple temporal scales for GPP, Reco, and ET at both plant functional types. Overall there was a systematic underestimation of the temporal variation of Reco at both plant functional types at temporal scales between weeks and months, and an overestimation at the yearly scale. Modeled Reco was systematically overestimated during drought for all sites, but daily GPP was systematically underestimated only for deciduous sites during drought. In contrast, daily estimates of ET showed good data-model agreement even during drought conditions. This meta-analysis brings attention to the importance of drought conditions for modeling purposes in representing forest dynamics in water-limited ecosystems. en_US
dc.identifier.issn 1432-9840 en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.title Drought Influences the Accuracy of Simulated Ecosystem Fluxes: A Model-Data Meta-analysis for Mediterranean Oak Woodlands en_US
dc.type Journal Article en
dcterms.accessRights open access
dspace.entity.type Publication en_US
unsw.description.publisherStatement The final publication is available at Springer via en_US
unsw.identifier.doiPublisher en_US
unsw.relation.FunderRefNo 152671 en_US
unsw.relation.FunderRefNo GA01101
unsw.relation.faculty Science
unsw.relation.fundingScheme CarboeuropeIP FAO-GTOS-TCO iLEAPS Max Planck Institute for Biogeochemistry National Science Foundation University of Tuscia US Department of Energy Berkeley Water Center Lawrence Berkeley National Laboratory Microsoft Research eScience Oak Ridge National Laboratory, University of Virginia Ciencia Basica CONACyT 152671 UK DECC/Defra Met Office Hadley Centre Climate Programme GA01101 GHG-Europe FP7 European project en_US
unsw.relation.ispartofissue 5 en_US
unsw.relation.ispartofjournal Ecosystems en_US
unsw.relation.ispartofpagefrompageto 749-764 en_US
unsw.relation.ispartofvolume 16 en_US
unsw.relation.originalPublicationAffiliation Vargas, R en_US
unsw.relation.originalPublicationAffiliation Sonnentag, O en_US
unsw.relation.originalPublicationAffiliation Abramowitz, Gabriel, Climate Change Research Centre (CCRC), Faculty of Science, UNSW en_US
unsw.relation.originalPublicationAffiliation Carrara, A en_US
unsw.relation.originalPublicationAffiliation Chen, J en_US
unsw.relation.originalPublicationAffiliation Ciais, P en_US
unsw.relation.originalPublicationAffiliation Correia, A en_US
unsw.relation.originalPublicationAffiliation Keenan, T en_US
unsw.relation.originalPublicationAffiliation Kobayashi, H en_US
unsw.relation.originalPublicationAffiliation Ourcival, J en_US
unsw.relation.originalPublicationAffiliation Papale, D en_US
unsw.relation.originalPublicationAffiliation Pearson, D en_US
unsw.relation.originalPublicationAffiliation Pereira, J en_US
unsw.relation.originalPublicationAffiliation Piao, S en_US
unsw.relation.originalPublicationAffiliation Rambal, S en_US
unsw.relation.originalPublicationAffiliation Baldocchi, D en_US School of Biological, Earth & Environmental Sciences *
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