Normalised Difference Vegetation Index (NDVI)
Real time NDVI monitoring system for pasture, turf and plant management and research, supporting LoRaWAN, CAT-M1 and NB-IoT.
The MFR-NODEÂ (LoRaWAN or CATM1/NB-IoT) supports up to 1 x NDVI Sensor Pair (S2-411/S2-412)
The S-NODE (LoRaWAN or CATM1/NB-IoT) supports up to 2 x NDVI Sensor Pair (S2-411/S2-412)
NDVI (Normalised Difference Vegetation Index) is calculated from measurements of electromagnetic radiation reflected from plant canopy surfaces.
NDVI is a standardised index use to measure the state of plant health. Leaf chlorophyll absorbs red light (approximately 680mm), and the cellular structure of the leaves strongly reflect near-infrared light, approximately 730mm. When the plant is water stressed or diseased the spongy layer deteriorates and the plant absorbs more of the near-infrared light (NIR), rather than reflecting it. By observing how NIR changes compared to red light provides an accurate indication of the presence of chlorophyll, which correlates with plant health.
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