NASA AEHYP Project: Airborne Hyperspectral Imagery for Forest and Grassland Biodiversity
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Description
Airborne hyperspectral data collected between 2014 and 2022 from three ecological research sites in Nebraska, Oklahoma, and Minnesota. The data, with spatial resolutions of 0.3 to 1 meter and spectral ranges from 400 to 2450 nanometers, were collected by the Nebraska Earth Observatory and other contractors using Aisa-series sensors mounted on fixed-wing aircraft. It is provided under a CC-BY-4.0 license.
Use Cases
Developing new capabilities for remote sensing of forest diversity and function based on 1-meter resolution hyperspectral data.
Creating approaches for studying grassland biodiversity using data from the Tallgrass Prairie Preserve.
Investigating the optical diversity-biodiversity relationship at local scales using the 0.3-meter resolution mosaic from Cedar Creek.
Supporting the development of a global biodiversity monitoring system with calibrated, multi-date airborne imagery.
Strengths
Data spans multiple collection dates from 2014 to 2022, providing temporal context.
Includes 178 to 323 hyperspectral bands per product, offering detailed spectral information.
Data has been radiometrically, geometrically, and atmospherically corrected, indicating a processed state.
Covers specific, well-defined ecological research plots (ForestGeo, Tallgrass Prairie Preserve, Cedar Creek LTER).
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count and total dataset size are unknown, which may limit suitability assessment.
Data may reflect geographic bias inherent to the three specific U.S. Midwest sites.
Provenance
Source
Nebraska Earth Observatory (NEO), SpecTIR Remote Sensing Division, and other contractors.
Collection Method
Airborne collection using AisaKESTREL, AisaFENIX 1K, and AisaEAGLE hyperspectral pushbroom sensors mounted on fixed-wing aircraft.
Time Range
2014-2022
Freshness
Last update date is unknown; freshness unverified.
Geography
Indian Cave State Park, Nebraska; Tallgrass Prairie Preserve, Oklahoma; Cedar Creek Ecosystem Science Reserve, Minnesota, USA.
Data is stored in S3 format; specific tools for handling hyperspectral imagery may be required.