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Developmental changes in the reflectance spectra of temperate deciduous tree leaves and implications for thermal emissivity and leaf temperature

hal.structure.identifierNorthern Arizona University [Flagstaff]
dc.contributor.authorRICHARDSON, Andrew
hal.structure.identifierNorthern Arizona University [Flagstaff]
dc.contributor.authorAUBRECHT, Donald
hal.structure.identifierHarvard University
dc.contributor.authorBASLER, David
hal.structure.identifierUniversiteit Gent = Ghent University = Université de Gand [UGENT]
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorHUFKENS, Koen
hal.structure.identifierUniversity of Hawaii
dc.contributor.authorMUIR, Christopher
hal.structure.identifierNational Institute of Standards and Technology [Boulder] [NIST]
dc.contributor.authorHANSSEN, Leonard
dc.date.accessioned2024-04-08T11:52:15Z
dc.date.available2024-04-08T11:52:15Z
dc.date.issued2021
dc.identifier.issn0028-646X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195473
dc.description.abstractEnLeaf optical properties impact leaf energy balance and thus leaf temperature. The effect of leaf development on mid-infrared (MIR) reflectance, and hence thermal emissivity, has not been investigated in detail. We measured a suite of morphological characteristics, as well as directional-hemispherical reflectance from ultraviolet to thermal infrared wavelengths (250 nm to 20 µm) of leaves from five temperate deciduous tree species over the 8 wk following spring leaf emergence. By contrast to reflectance at shorter wavelengths, the shape and magnitude of MIR reflectance spectra changed markedly with development. MIR spectral differences among species became more pronounced and unique as leaves matured. Comparison of reflectance spectra of intact vs dried and ground leaves points to cuticular developmentand not internal structural or biochemical changesas the main driving factor. Accompanying the observed spectral changes was a drop in thermal emissivity from about 0.99 to 0.95 over the 8 wk following leaf emergence. Emissivity changes were not large enough to substantially influence leaf temperature, but they could potentially lead to a bias in radiometrically measured temperatures of up to 3 K. Our results also pointed to the potential for using MIR spectroscopy to better understand species-level differences in cuticular development and composition.
dc.language.isoen
dc.publisherWiley
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.endirectional-hemispherical reflectance (DHR)
dc.subject.encuticle
dc.subject.enFourier transform infrared (FT-IR)
dc.subject.enleaf development
dc.subject.enleaf temperature
dc.subject.enmid-infrared (MIR)
dc.subject.enphenology
dc.subject.enthermal remote sensing
dc.title.enDevelopmental changes in the reflectance spectra of temperate deciduous tree leaves and implications for thermal emissivity and leaf temperature
dc.typeArticle de revue
dc.identifier.doi10.1111/nph.16909
dc.subject.halSciences de l'environnement
bordeaux.journalNew Phytologist
bordeaux.page791 - 804
bordeaux.volume229
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue2
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-03173200
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03173200v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=New%20Phytologist&rft.date=2021&rft.volume=229&rft.issue=2&rft.spage=791%20-%20804&rft.epage=791%20-%20804&rft.eissn=0028-646X&rft.issn=0028-646X&rft.au=RICHARDSON,%20Andrew&AUBRECHT,%20Donald&BASLER,%20David&HUFKENS,%20Koen&MUIR,%20Christopher&rft.genre=article


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