Crop monitoring / remote sensing
Remote sensing is a technique which is mainly used in the agriculture. It can be used to monitor the progress (growth) and the health of the crops by using NIR (near infrared).
NIR is located between 780nm and 2500nm in the electromagnetic spectrum. This part is not visible for the human eye. The NIR technique can be used to measure the crop reflection, which can be used to calculate a vegetation index (NDVI). The vegetation index is a reflection of the differences in the crop its vitality and biomass. Stress factors, including water and nutrient shortage, become clear with this technique. With crop monitoring we can map the growth and status of the crops on agricultural land.