Possibility of optimized indices for the assessment of heavy metal contents in soil around an open pit coal mine area.
International Journal of Applied Earth Observation and Geoinformation(2018)
Abstract
•Optimized Indices are a sensitive indicator for monitoring soil heavy metals.•NPDI1417 nm, 1246 nm showed good applicability for estimating soil arsenic.•The combination of (R1417+ R1246) × R1246 improved the estimation accuracy.
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Key words
Heavy metal,Optimized spectral indices,GWR model,Coal mine field,Hyperspectral
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