Reply to Townsend et al.: Decoupling contributions from canopy structure and leaf optics is critical for remote sensing leaf biochemistry (Letter)
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Other documents of the author: Latorre Carmona, Pedro; Knyazikhin, Yuri; Lewis, Philip; Disney, Mathias I.; Stenberg, Pauline; Mõttus, Matti; Rautiainen, Miina; Kaufmann, Robert K.; Marshak, Alexander; Schull, Mitchell A.; Vanderbilt, Vern; Davis, Anthony B.; Baret, Frédéric; Jacquemoud, Stéphane; Lyapustin, Alexei; Yang, Yan; Myneni, Ranga B.
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Title
Reply to Townsend et al.: Decoupling contributions from canopy structure and leaf optics is critical for remote sensing leaf biochemistry (Letter)Author (s)
Date
2013Publisher
National Academy of SciencesISSN
1091-6490Type
info:eu-repo/semantics/articlePublisher version
http://www.pnas.org/content/110/12/E1075.full.pdf+htmlVersion
info:eu-repo/semantics/publishedVersionSubject
Abstract
Townsend et al. (1) agree that we explain the observed relationship (2) between foliar nitrogen (%N) and near-infrared (NIR) canopy reflectance is largely due to structure - i.e.,
structural variation due to fraction ... [+]
Townsend et al. (1) agree that we explain the observed relationship (2) between foliar nitrogen (%N) and near-infrared (NIR) canopy reflectance is largely due to structure - i.e.,
structural variation due to fraction of broadleaf canopy. Our conclusion that the observed correlation with %N is spurious (i.e., lacking a causal basis) is thus clearly justified: we
demonstrate that structure explains the great majority of observed correlation, where the structural influence is derived precisely via reconciling the observed correlation with
radiative transfer theory. [-]
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PNAS (2013) vol. 110, no. 12, E1075Rights
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