Hyperspectral data captures 72 ten-nanometer bands in the visible and near-infrared range for coral reef analysis. The imagery, with a 3-meter pixel resolution, was collected by the AURORA system for mapping benthic habitats around the eight main Hawaiian Islands. This cooperative project involved NOAA, the University of Hawaii, and Analytical Laboratories of Hawaii, with data processed around the year 2000.
Use Cases
- Classify benthic habitat types using the 72 spectral bands to distinguish coral, algae, sand, and rock substrates.
- Analyze coral reef community structure over time by comparing hyperspectral band responses for health assessment.
- Develop feature detection algorithms optimized for different water depths by processing selected band widths from the imagery.
- Compare mapping accuracy between hyperspectral, multispectral IKONOS, and color aerial photography for coral reef delineation.
Strengths
- 72 spectral bands provide high-resolution data for detailed feature discrimination.
- 3-meter pixel resolution offers fine spatial detail for habitat boundary delineation.
- Data processed to optimize band selection for feature detection in both shallow and deep water.
Limitations
- Data is from circa 2000, making it temporally stale for analyzing current reef conditions.
- Unknown sample size and geographic extent beyond the eight main islands limits assessment of coverage.
Provenance
- Source
- Cooperative project among NOAA National Centers for Coastal Ocean Science, University of Hawaii, and Analytical Laboratories of Hawaii.
- Collection Method
- Collected by the AURORA hyperspectral imaging system and processed for band selection; habitats were delineated via photointerpretation using software like the Habitat Digitizer.
- Time Range
- null
- Freshness
- null
- Geography
- The eight main Hawaiian Islands.