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- W2153397382 abstract "Leaf water content as a percentage of dry mass (LWC <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>D</sub> ), also termed fuel moisture content, is a critical variable for fire risk modeling. To date, the relationship between spectral reflectance and LWC <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>D</sub> is poorly understood due to the mixed effect of leaf water and dry mass on spectral response. Few studies have reported an adequate estimation of LWC <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>D</sub> from leaf reflectance spectra, in particular for a variety of species. In this study, we propose an effective approach, using continuous wavelet analysis, to determine LWC <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>D</sub> from reflectance spectra for 47 tropical forest species in Panama. The proposed method provides a new way to select a small number of wavelet features (wavelet coefficients) that are sensitive to changes in LWC <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>D</sub> . Wavelet features derived using this new method are compared with common spectral indices in terms of their relationship with LWC <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>D</sub> . Results demonstrate that LWC <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>D</sub> is poorly correlated to the water indices but strongly correlated to the derived wavelet features. Accurate estimates of LWC <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>D</sub> across a range of species are achieved using any of those wavelet features and can be slightly improved using a combination of them." @default.
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- W2153397382 date "2010-07-01" @default.
- W2153397382 modified "2023-09-23" @default.
- W2153397382 title "Spectroscopic determination of leaf water content using continuous wavelet analysis" @default.
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- W2153397382 doi "https://doi.org/10.1109/igarss.2010.5654453" @default.
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