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Description
Coral bleaching survey data from the Hawaiian Archipelago was collected from August 20 to December 7, 2019. The dataset provides metrics on live coral cover, the percentage of bleached coral, and average bleaching severity, with some taxon-specific detail. It is a multi-institutional compilation by the Hawaii Coral Bleaching Collaborative involving NOAA, state agencies, universities, and conservation groups.
Use Cases
Analyzing spatial patterns of bleaching severity across the Main and Northwestern Hawaiian Islands using site location data.
Assessing taxon-specific vulnerability by examining metrics for live coral cover and bleaching percentage per coral type.
Comparing bleaching impacts between sites surveyed via different methods like rapid visual assessments, photoquadrats, or transect-intercept.
Investigating the relationship between environmental covariates and bleaching metrics at sites selected via stratified random sampling.
Strengths
Data represents a coordinated multi-institutional effort from eight contributing organizations, ensuring broad spatial coverage.
Surveys capture a specific bleaching event peak across a defined 3.5-month time range in 2019.
Multiple standardized assessment methods were used, including visual, photoquadrat, and transect techniques.
Limitations
Exact row count, column names, and dataset size are unknown from all provided sources.
Survey methodologies varied by institution, which may affect direct comparability of some metrics.
Conflicting last updated dates exist between platforms (2019-12-07 vs 2026-03-05), indicating potential metadata inconsistency.
Provenance
Source
Hawaii Coral Bleaching Collaborative (HCBC), compiled from NOAA ESD, Hawaii DLNR/DAR, Scripps, ASU, NPS, HIMB, and The Nature Conservancy.
Collection Method
Surveys conducted at fixed and random sites using rapid visual assessments, photoquadrat assessments, and transect-intercept assessments.
Time Range
2019-08 20 to 2019-12-07
Freshness
2026-03-05 23:32:08.654693
Geography
Hawaiian Archipelago, including Main and Northwestern Hawaiian Islands.
License information is not provided in any source description. File format is listed only as HTML, which may indicate a metadata page rather than the direct data files.