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REOPTRAM: a reconstructed optical trapezoidal model that utilizes drone spectra to optimize satellite feature spaces for enhanced soil moisture mapping in irrigation areas
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DOI：10.1016/j.geoderma.2026.117955.png)
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Abstract
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• Proposed a REconstructed OPtical TRApezoidal Model (REOPTRAM) • Introduced UAV spectral data to optimize the satellite feature space. • The reconstructed feature space became more amenable to linear fitting. • REOPTRAM yielded about a 24.1% (RMSE) improvement in soil moisture estimation.
Keywords:
Soil moisture
OPTRAM
Shortwave infrared
Spectral reconstruction
Drone
Upscaling
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