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Full catalog/SHIFT_AVNG_L1B_RDN_V2_2432
SHIFT_AVNG_L1B_RDN_V2_2432·v2·dataset

Calibrated airborne imaging-spectrometer light (AVIRIS-NG)

SHIFT: AVIRIS-NG L1B Calibrated Radiance, V2
land NASA ORNL_CLOUD Level 1A multiple
In plain English

What it measures. Calibrated measurements of reflected light across hundreds of narrow color bands from visible into shortwave infrared, plus the viewing and lighting geometry for each scene. Light values are calibrated but not yet corrected to true ground reflectance.

How it's made. Collected by the airborne AVIRIS-NG imaging spectrometer flown on a B-200 aircraft during the 2022 SHIFT campaign over Santa Barbara County, California, at roughly weekly intervals.

How & where you'd use it. A calibrated intermediate product feeding studies of plant communities and surface change; many users will work from higher-level reflectance products derived from it.

What's measured

SPECTRAL/ENGINEERING › INFRARED WAVELENGTHS › INFRARED RADIANCESPECTRAL/ENGINEERING › VISIBLE WAVELENGTHS › VISIBLE RADIANCE

Coverage & cadence

  • Time span2022-02-24 → 2022-09-15
  • Measured byB-200 (AVIRIS-NG)
  • Processing levelLevel 1A
  • Spatial extent-120.643, 33.9047, -118.036, 35.1161
  • Formatsmultiple
  • StatusCOMPLETE

What you can do with it

  • Track deforestation, fire scars and land-cover change
  • Monitor crop and vegetation health (NDVI/EVI)
  • Map how built-up vs. green an area is over time
Official description

This dataset contains Level 1B (L1B) unrectified calibrated surface radiance images as well as files of observational geometry and illumination parameters and supporting sensor band information from NASA's Airborne Visible / Infrared Imaging Spectrometer-Next Generation (AVIRIS-NG) instrument. This imagery was collected at regular (approximately weekly) intervals in 2022 between February and May, as well as in September as part of the Surface Biology and Geology High-Frequency Time Series (SHIFT) campaign. The SHIFT campaign leveraged NASA's AVIRIS-NG facility instrument to collect VSWIR data at approximately a weekly cadence across a broad study area, enabling traceability analyses related to the science value of VSWIR revisits. This campaign will generate precise, high-frequency data on plant communities collected over nearly 1,656 square kilometers across Santa Barbara County, California, US, and nearby coastal Pacific waters. AVIRIS-NG is a pushbroom spectral mapping system with high signal-to-noise ratio (SNR), designed and toleranced for high performance spectroscopy. AVIRIS-NG measures reflected radiance at 5-nm intervals in the Visible to Shortwave Infrared (VSWIR) spectral range from 380-2510 nm. The AVIRIS-NG sensor has a 1 milliradian instantaneous field of view, providing altitude dependent ground sampling distances from 20 m to sub-meter range. In this dataset, for each flight line, the data include: orthocorrected calibrated radiance imagery, geometric lookup table, observation geometry and illumination information, input geometry, and orthocorrected locations of each pixel.These AVIRIS-NG L1B data are provided in netCDF format along with RGB quicklook images in TIFF image format.

Get the data

shift_avng_l1b_rdn_v2_2432_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="SHIFT_AVNG_L1B_RDN_V2_2432",
    version="2",
    bounding_box=(-122.5, 37.2, -121.8, 37.9),  # your area (W,S,E,N)
    temporal=("2024-01-01", "2024-12-31"),       # your dates
)
files = earthaccess.open(results)   # stream straight from ORNL_CLOUD
Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package.