AVIRIS-3 Airborne Spectral Imagery for Alaska and Canada in 2023

2023 airborne imaging spectroscopy data includes L1B radiance and L2A surface reflectance imagery for portions of Alaska and northwestern Canada. The Airborne Visible / Infrared Imaging Spectrometer-3 (AVIRIS-3) instrument measured reflected radiance at 7.4-nm intervals across the 390-2500 nm spectral range. These data were collected for NASA's Arctic-Boreal Vulnerability Experiment (ABoVE) project and processed by ORNL_CLOUD.

Use Cases

• Analyze L2A surface reflectance to map vegetation species and health across the Arctic-boreal zone.
• Use the 7.4-nm interval spectral data from 390-2500 nm to detect and quantify biochemical properties of surface materials.
• Combine L1B radiance imagery with other ABoVE airborne datasets for multi-sensor analysis of ecosystem vulnerability.
• Apply the GeoJSON imagery boundaries to subset and mosaic specific flight lines for regional studies.
• Model surface energy balance and albedo using the high-spectral-resolution radiance measurements in the visible to shortwave infrared range.

Strengths

• Spectral data captured at high resolution of 7.4-nm intervals across a broad 390-2500 nm range.
• Imagery provides altitude-dependent ground sampling distances from 12 meters to sub-meter detail.
• Data is part of a coordinated multi-sensor airborne campaign involving eleven different aircraft teams.

Limitations

• Spatial coverage is limited to specific flight lines over portions of Alaska and northwestern Canada, not a complete regional mosaic.
• Data is provided in ENVI format, which requires specialized remote sensing software (e.g., ENVI, GDAL) for analysis.
• The dataset represents a single year (2023) of observations, limiting temporal trend analysis.

Provenance

Source

NASA's Airborne Visible / Infrared Imaging Spectrometer-3 (AVIRIS-3) instrument, processed for the ABoVE project.

Collection Method

Airborne remote sensing data collected via aircraft-mounted imaging spectrometer.

Time Range

2023

Freshness

Data from 2023, last updated in August 2023.

Geography

Portions of Alaska and northwestern Canada.