FORESTRY
REMOTE SENSING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Band Ratio
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Classification
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Sharpening
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Radiometric
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Detailed explanation-1: -(NIR-R) / (NIR + R) In Landsat 4-7, NDVI = (Band 4 – Band 3) / (Band 4 + Band 3). In Landsat 8-9, NDVI = (Band 5 – Band 4) / (Band 5 + Band 4). NDVI is delivered as a single band product, specified as shown in the table below.
Detailed explanation-2: -What is NDVI in Agriculture? Put simply, normalized difference vegetation index is a measure of the state of plant health based on how the plant reflects light at certain frequencies (some waves are absorbed and others are reflected).
Detailed explanation-3: -NOAA Center for Satellite Applications and Research (STAR) normalized difference vegetation index (NDVI) maps. NDVI is a simple graphical indicator that can be used to analyze remote sensing measurements and assess whether the target being observed contains live green vegetation or not.