Lecture 3: Vegetation Sampling - Alaska Geobotany Center
Lecture 3: Vegetation Sampling - Alaska Geobotany Center
Lecture 3: Vegetation Sampling - Alaska Geobotany Center
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Normalized Difference Vegeta4on <br />
Index (NDVI) <br />
• One of several spectral vegeta4on indices that use <br />
reflectance in variance bands of the total spectrum to <br />
determine and index of vegeta4ve abundance. <br />
• The NDVI is based on the principle that red, R, wavelengths <br />
(near 0.6µm) are absorbed by chloroplasts and mesophyll, <br />
while near infrared, NIR, wavelengths (0.7-‐0.9µm) are <br />
reflected.