Hawaiian Islands Coral Reef Hyperspectral Imagery

72 ten-nanometer spectral bands in the visible and near-infrared range were collected by the AURORA hyperspectral imaging system at 3-meter pixel resolution. This dataset was developed for coral reef mapping and benthic habitat analysis through a collaboration between NOAA's National Centers for Coastal Ocean Science, the University of Hawaii, and Analytical Laboratories of Hawaii. The project aimed to compare mapping methods using hyperspectral, IKONOS satellite, and aerial photography imagery.

Use Cases

• Classify benthic habitat types by analyzing spectral signatures across 72 bands.
• Assess coral reef community structure and health changes over time using the time-series imagery.
• Compare feature detection accuracy in shallow versus deep water using the processed band widths.
• Delineate habitat boundaries for mapping by photointerpreting the georeferenced hyperspectral data.

Strengths

• 72 spectral bands provide high-resolution data for feature discrimination
• 3-meter pixel resolution offers detailed spatial information for habitat mapping
• Data processed to optimize band widths for feature detection in different water depths

Limitations

• Dataset is from 2000, making it temporally stale for current reef condition analysis
• Specific row count, geographic coordinates, and sample size are unknown
• Limited to the main eight Hawaiian Islands, not globally representative

Provenance

Source

Cooperative project among NOAA NOS/NCCOS/CCMA, University of Hawaii, and Analytical Laboratories of Hawaii, LLC.

Collection Method

Data collected by the AURORA hyperspectral imaging system and processed for band selection; maps generated by photointerpreting georeferenced imagery.

Time Range

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Freshness

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Geography

Main eight Hawaiian Islands