Hawaiian Coral Reef Benthic Cover From Image Analysis

NOAA_NCEI's National Coral Reef Monitoring Program dataset provides benthic cover data derived from photo-quadrat surveys across the Hawaiian Archipelago. Analysis of images collected from 2010 to present quantifies cover across three taxonomic tiers, from functional groups to genus-level identification. The collection includes the source imagery alongside the derived cover percentages.

Use Cases

• Tracking changes in hard coral versus macroalgae cover over time using Tier 1 functional group columns.
• Analyzing shifts in coral morphology (e.g., massive, branching) using Tier 2 classification data.
• Studying genus-level coral composition (e.g., Astreopora sp, Pocillopora) across different sites via Tier 3 annotations.
• Assessing benthic habitat health by correlating cover percentages with environmental data from climate stations.
• Validating automated image analysis algorithms against the manually annotated source imagery included in the collection.

Strengths

• Data spans a multi-year time series from 2010 to present, enabling longitudinal studies of reef change.
• Annotations provide three levels of taxonomic detail, from broad functional groups to specific genera like 'Favia sp'.
• Methodology is documented, using standardized tools (CPCe and CoralNet) for consistent analysis across years.
• Cross-platform presence on NASA Earthdata and Data.gov signals its importance and reliability for the scientific community.

Limitations

• Critical metadata such as row count, column names, and dataset size are unavailable across all sources.
• Source descriptions are identical and lack specific quantitative scope, limiting assessment of dataset scale.
• License information is not provided, which may restrict certain uses.

Provenance

Source

NOAA_NCEI, Ocean and Climate Change team, National Coral Reef Monitoring Program.

Collection Method

Benthic photo-quadrat surveys along transects at climate stations and permanent sites, with images analyzed manually using CPCe (2010-2014) and CoralNet (2015-present).

Time Range

2010 to present

Freshness

2026-03-05 23:52:52.033903

Geography

Climate stations and permanent sites across the Hawaiian Archipelago, Central Pacific Ocean.