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Coral Bleaching Monitoring Dataset Pre-processing

This file describes the data pre-processing that was done to the Daily Global 5km Satellite Coral Bleaching Heat Stress Monitoring for display on Resource Watch.

This dataset is provided by the source in a number of separate NetCDF files. The following variables are shown on Resource Watch:

  • Bleaching Alert Area (bleaching_alert_area_7d): Areas where bleaching thermal stress satisfies specific criteria based on HotSpot and Degree Heating Week (DHW) values
  • HotSpot (hotspots): Measures the magnitude of daily thermal stress that can lead to coral bleaching
  • Degree Heating Week (degree_heating_week): Indicates duration and magnitude of thermal stress (one DHW is equal to one week of SST 1°C warmer than the historical average for the warmest month of the year)
  • Sea Surface Temperature Anomaly (sea_surface_temperature_anomaly): Difference between the daily SST and the corresponding daily SST climatology
  • Sea Surface Temperature (sea_surface_temperature): Night-time temperature of ocean at surface
  • Sea Surface Tempature Trend (sea_surface_temperature_trend_7d): Pace and direction of the SST variation and thus coral bleaching heat stress

To process this data for display on Resource Watch, each NetCDF file was downloaded, and the relevant subdatasets were extracted to individual, single-band GeoTIFFs. These GeoTIFF files were then merged into a single multi-band GeoTIFF, where each band corresponds to one variable.

Please see the Python script for more details on this processing.

You can view the processed dataset for display on Resource Watch.

You can also download the original data from the source website.

Note: This dataset processing was done by Taufiq Rashid and Peter Kerins.