NASA HWHYP Project: Hyperspectral Reflectance at 1mm Resolution for Prairie Grassland

920 to 924 hyperspectral bands of reflectance data at 1 millimeter spatial resolution in the 400 to 1,000 nanometer spectral range. The data were collected by a Headwall Series E imaging spectrometer mounted on a tram system 3 meters above ground at the Cedar Creek Ecosystem Science Reserve in Minnesota. Images were acquired during June/July 2014 and July 2015 for the Long-Term Ecological Research (LTER) biodiversity experiment.

Use Cases

• Modeling the optical diversity-biodiversity relationship based on fine-scale hyperspectral reflectance.
• Investigating the spatial sensitivity of biodiversity indicators at local scales based on 1mm resolution imagery.
• Analyzing prairie grassland ecosystem properties using hyperspectral field image cubes.
• Developing computer vision methods for high-resolution ecological remote sensing data.

Strengths

• Provides hyperspectral imagery at an exceptionally fine 1 millimeter ground pixel spatial resolution.
• Covers a broad spectral range of 400 to 1,000 nanometers across 920 to 924 bands.
• Data is associated with a well-established Long-Term Ecological Research (LTER) site and experiment.

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 is limited to two specific time periods (mid-2014 and mid-2015) and a single geographic site.

Provenance

Source

NASA, collected at the Cedar Creek Ecosystem Science Reserve (CCESR).

Collection Method

A Headwall Series E imaging spectrometer mounted on a tram system collected the data.

Time Range

June/July 2014 and July 2015.

Freshness

Data collection occurred in 2014 and 2015; last update date is unknown.

Geography

Cedar Creek Ecosystem Science Reserve, Minnesota, USA.