Hyperspectral Imaging Alaska

Hyperspectral imagery acquired using Hyspex VNIR-1800 and SWIR-384 camera systems have provided unique information on terrestrial and aquatic biogeochemical parameters, and diagnostic mineral properties in exposed outcrops in selected sites in the state of Alaska. The Hyspex system was configured for in-situ and field scanning by attaching it to a gimbal-mounted rotational stage on a robust tripod. Scans of vertical faces of
vegetation and rock outcrops were made close to the campus of the University of Alaska Fairbanks, in an abandoned mine near Fairbanks, and on exposures of Orange Hill in WrangellSt. Elias National Park. Atmospherically corrected integrated VNIR_SWIR spectra were extracted which helped to study varying nitrogen content in the vegetation, and helped to distinguish the various micas. Processed imagery highlighted carbonates, clays, sulfates, and alteration-related minerals. The same instrument was also mounted in airborne configuration on two different aircrafts, a DeHavilland Beaver and a Found Bush Hawk. Test flights were flown over urban and wilderness areas that presented a variety of landcover types. Processed imagery shows promise in mapping man-made surfaces, phytoplankton, and dissolved materials in inland water bodies.

Authors: Anupma Prakash, Marcel Buchhorn, Jordi Cristóbal, Raymond F. Kokaly, Patrick Graham, Christine F. Waigl , Don Hampton, Melanie Werdon, Nikki Guldager, Mark Bertram and Martin Stuefer

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.