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- W2465969429 abstract "Abstract. Leaf area index (LAI) is an important essential biodiversity variable due to its role in many terrestrial ecosystem processes such as evapotranspiration, energy balance, and gas exchanges as well as plant growth potential. A novel approach presented here is the retrieval of LAI using thermal infrared (8–14 μm, TIR) measurements. Here, we evaluate LAI retrieval using TIR hyperspectral data. Canopy emissivity spectral measurements were recorded under controlled laboratory conditions using a MIDAC (M4401-F) illuminator Fourier Transform Infrared spectrometer for two plant species during which LAI was destructively measured. The accuracy of retrieval for LAI was then assessed using partial least square regression (PLSR) and narrow band index calculated in the form of normalized difference index from all possible combinations of wavebands. The obtained accuracy from the PLSR for LAI retrieval was relatively higher than narrow-band vegetation index (0.54 < R2 < 0.74). The results demonstrated that LAI may successfully be estimated from hyperspectral thermal data. The study highlights the potential of hyperspectral thermal data for retrieval of vegetation biophysical variables at the canopy level for the first time." @default.
- W2465969429 created "2016-07-22" @default.
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- W2465969429 date "2016-06-20" @default.
- W2465969429 modified "2023-09-30" @default.
- W2465969429 title "LEAF AREA INDEX RETRIEVED FROM THERMAL HYPERSPECTRAL DATA" @default.
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- W2465969429 doi "https://doi.org/10.5194/isprs-archives-xli-b7-99-2016" @default.
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