Archive for October, 2008

Remote Sensing

I think it would be useful to spread my knowledge in this subject so I wrote down basic methods that are commonly used in Remote Sensing analysis.

Enjoy !!

Single Band
Band 2 (Green) is useful for vegetation discrimination, water quality and chlorophyll concentration. Band 3 (red) is used to analyze the amount of chlorophyll in the vegetation. Since leaf chlorophyll absorbs red band energy, the lower the reflected energy, the greater chlorophyll amount.
Near-infrared band (band 4) picks up the portion of the reflected light spectrum created by the plant’s mesophyll leaf tissue. Consequently vigorously growing healthy vegetation has low red-light reflectance (due to its chlorophyll) and high near-infrared reflectance (due to its total biomass). Band 5 (shortwave infrared) is useful to analyze moisture levels in soil and monitoring plant vigor.

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