Filters: Tags: Bleaching (X)
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Reef polygons have been classified by integrated local threats, plus thermal stress and acidification projected to 2050. Values of 0 indicate low threat, 100 indicate medium threat, 1000 indicate high threat, 1500 indicate very high threat, and 2000 indicate critical threat.
Proportion of coral bleaching events that were high impact, by marine ecoregion. Data on coral bleaching is derived from ReefBase and represents bleaching from a single year (1998). This was the worst bleaching event on record, linked to an El Niño year. It was also very well monitored, partly because of its unprecedented nature. Bleaching has remained widespread since that time in locations around the world. The data was generously provided by Jamie Oliver from a subset that was prepared for another publication (Oliver et al. 2008), and we have only made minor corrections to errors for the Seychelles in this data set. Bleaching reports in ReefBase were derived from a broad range of sources, but each has been assigned...
The ReefBase Coral Bleaching dataset provides observation details of coral bleaching occurrences (or lack thereof) around the world. This dataset was built upon an original bleaching database developed at UNEP-WCMC, and has been maintained and updated regularly by ReefBase since early 2002. Main sources of information for this dataset have been: published records from the literature, postings on the coral-list (http://www.coral.noaa.gov/lists/), the ReefBase online Bleaching Report (http://www.reefbase.org/contribute/bleachingreport.aspx), and through collaborations with numerous institutions and individuals. ReefBase would like to particularly acknowledge the contributions made by: National Oceanographic and Atmospheric...
Reef polygons have been classified by all local threats and past thermal stress. Values of 0 indicate low threat, 100 indicate medium threat, 1000 indicate high threat, and 1500 indicate very high threat.
Grid cells classified by estimated severe thermal stress (1998-2007). Values of 0 indicate no stress, Values of 1 indicate severe thermal stress. Severe thermal stress is defined as a NOAA Bleaching Alert Level 2 (DHW is greater than 8) that occurred at least once during the period of 1998 to 2007, or an observation of severe coral bleaching from ReefBase between 1998 and 2007. See technical notes for more information.
Tags: bleaching,
coral reefs
Reef polygons have been classified by integrated local threats, plus thermal stress and acidification projected to 2030. Values of 0 indicate low threat, 100 indicate medium threat, 1000 indicate high threat, 1500 indicate very high threat, and 2000 indicate critical threat.
Forty samples of outcropping rock samples were collected from the Permian Cutler Formation exposed in the Sinbad Valley, Mesa County, Colorado by USGS volunteer Jon Thorson. This sample set includes 13 pairs of co-existing red unaltered and yellow-grey bleached sandstone. The decimal latitude and longitude locations of the sample collection sites are listed in the “All_Rock_Data” worksheet in the accompanying “All_Sinbad_Rocks” workbook. The samples were collected from rocks exposed on the eastern edge of a breached salt-cored anticline within about 1 to 100 meters from an active seep from which sulfurous brines supply water to Salt Creek. The co-existing red/bleached samples were collected within the same stratigraphic...
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