Mass coral bleaching has occurred on the Great Barrier Reef (GBR) in 2016 and 2017 as part of global bleaching event that started in late 2014 (NOAA). The combined effect has meant that more area of the reefs throughout the GBR have bleached to some degree of severity, depending the duration and extreme temperature stress above the historical summer maximum temperature for each location.
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28.6
30.3
29
28.4
2016/2017
The time series corresponding to 2015, 2016 and 2017, when available, are plotted in its climatological year, starting at October 1st of the previous year and ending September 30 of its year. For example, the 2016 time series starts at 2015-10-01 and ends 2016-09-30.
The default climatology is the one extracted for the site’s coordinates from the SST Atlas of Australian Regional Seas (SSTAARS) (see Wijffels et al. 2018), at a spatial resolution of ~2km. When at least ten years of data were available, a climatology was derived from temperature loggers records for the reef flat and/or reef slope. In this case, one and two standard deviation bands are ploted as reference (grey bands).
The maximun temperature reported in the value Box is the maximum value of the 95% percentile of the day. This quantile avoids the effect of over-heating in some loggers located in the reef flat due to an occasional exposure to the air.