Advancement in NIR Reflectance Measurements of Small Leaves and Pine Needles

Wednesday, March 20, 2024, 10:00 AM – 10:30 AM EST

With rapidly changing environmental conditions due to climate change, novel UV-Vis-NIR remote sensing techniques for vegetation are critical to observing environmental metrics. Capturing reflectance data from small vegetation samples, such as pine needles and tiny leaves, is a technical challenge to overcome. The very small field of view needed for the measurement, as well as the required high sensitivity of the spectrometer, can be an obstacle to obtaining high-quality data. To address this problem, we deployed Spectral Evolution’s novel leaf clip reflectance probe and small leaf adapter using both a standard and a high-resolution spectroradiometer. Through this experiment, we explore the enhanced ability to analyze small samples with a more controlled field of view and discuss some of the limitations of this method.