Spectral Library for Weeds in Alpine Vegetation Communities

This project examines the potential to use remote sensing for monitoring of the distribution of several weed species in the alpine region of NSW, specifically targeting Orange Hawkweed, Mouse-ear Hawkweed and Ox-eye Daisy, as requested by NPWS. The project is based on the premise that plants
absorb and reflect different amounts of different wavelengths of light in the visible and near infrared spectra, which can be plotted as spectral reflectance profiles. We aimed to determine whether the spectral profiles of the weeds were separable from the spectral profiles of other common co-occurring native plants, and if so, determine whether it was possible to detect the weeds using spectral sensors attached to a drone, and/or using high-resolution satellite imagery.

Authors: Kerrie Tomkins, Michael Chang

Spectral Evolution is a leading manufacturer of field-portable UV-Vis-NIR remote sensing spectroradiometers and spectrometers for applications including geological remote sensing, ground-truthing, spectral remote sensing, environmental and climate research, crop and soil research, vegetative studies, forestry and canopy studies, radiometric calibration transfer, upwelling and downwelling measurement and more. Our UV-Vis-NIR spectrometers and spectroradiometers provide the best combination of high resolution and high sensitivity resulting in the most precise field portable instruments available on the market.

NaturaSpec UltraSpectral Evolution UV-Vis-NIR spectroradiometers provide:

  • Fast, full-spectrum UV-Vis-NIR measurements – 350-2500 nm with just one scan
  • Superior reliability in the field with 100% diode array optics with no moving parts
  • Wireless Bluetooth® Connection
  • Lithium-ion rechargeable batteries for field use
  • Lightweight and rugged
  • Rugged handheld tablet for field use running DARWin™ LT on Windows 10 with digital camera, and GPS
  • Field switchable optics for varying target sizes and measurement modes

All Spectral Evolution UV-Vis-NIR spectroradiometers include our exclusive DARWin™ SP Data Acquisition and Analysis software for one-touch, full range spectroscopic analysis of samples. DARWin™ SP automatically saves data as ASCII files for use with 3rd party software without post-processing.