Hawaiian Islands Coral Reef Hyperspectral Imagery

2000 hyperspectral imagery data for the main eight Hawaiian Islands, collected to develop coral reef mapping methods. The project was a cooperative effort by NOAA's National Centers for Coastal Ocean Science, the University of Hawaii, and Analytical Laboratories of Hawaii. Data includes 72 ten-nanometer bands in the visible and near-infrared range with 3-meter pixel resolution.

Use Cases

• Classify benthic habitat types from 72 spectral bands using supervised learning algorithms.
• Compare coral reef maps generated from hyperspectral imagery against those from IKONOS satellite or aerial photography.
• Analyze coral health and community structure time series using optimized spectral band widths for feature detection.
• Delineate feature boundaries for habitat mapping using the 3-meter pixel resolution georeferenced imagery.

Strengths

• 72 spectral bands provide high spectral resolution for feature discrimination.
• 3-meter pixel resolution offers detailed spatial information for habitat delineation.
• Data processed to optimize band widths for feature detection in both shallow and deep water.

Limitations

• Data is from the year 2000, potentially limiting analysis of recent coral reef changes.
• Specific sample size (row/area count) and geographic coverage details for the eight islands are unknown.
• No information provided on class balance or potential label noise from photointerpretation.

Provenance

Source

NOAA National Centers for Environmental Information (NCEI), from a cooperative project with the University of Hawaii and Analytical Laboratories of Hawaii.

Collection Method

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

Time Range

2000

Freshness

null

Geography

Main eight Hawaiian Islands