While flying to create a 2D orthomosaic, UpAngle flew over a developing Corn field and generated an NDVI image of the crop.
During flight, the pivot was active and watering West edge of the field. The flight was continued regardless so that UA could determine the change in reflectance due to water.
The vegetative index revealed that the areas that the water was active caused a large swing in index values. This showed the importance of having consistent weather/water/etc across the image.