Temperature range at -1.5m (GBR4)
| < | ---- | > |
| Jan | Feb | Mar |
| Apr | May | Jun |
| Jul | Aug | Sep |
| Oct | Nov | Dec |
Note: The near-real time GBR1 and GBR4 models (including hydro, river tracer and BGC) are currently paused at December 17th 2023 due to infrastructure damage from the recent flooding events around the Daintree River region (see here). These floods have damaged the real-time river temperature and flow sensors across surrounding catchments, and Queensland government is working to recover and restore these as quickly as possible. We will provide further updates when available.
This page shows the daily minimum, maximum and temperature range on the Great Barrier Reef based on the 4km eReefs Hydrodynamic model. This is an experimental product that is intended to help investigate whether daily temperature range is a useful indicator of resistence to coral bleaching.
Source data
The videos/images on this page are based on the 4km eReefs Hydrodynamic model (v2.0) of the Great Barrier Reef. The raw data is available from the NCI THREDDS server (hourly) and the aggregate data from the AIMS eReefs THREDDS server (daily, monthly, yearly, all). These map layers are also available for inspection as an interactive map.
Recent data
The results are updated in near-real-time, however sometimes they can be behind real time up to 2 weeks. This happens due to delays in the model runs being held up for technical reasons or delays in source data that drive the model. This visualisation portal can sometimes also delay the products by up to 1 day. To check the latest available model data look at the date on the NCI THREDDS server. If the model data is more up to date than this portal let us know.