HEAT WAVES CAUSING HEALTH
STRESS IN AUSTRALIA
Climate impact indicators
Global essential climate variables/indicators used
Observations and model simulations from CMIP5 (available in the CDS catalogue) of daily maximum and minimum surface air temperature
Regional/local indicators used and produced
Excessive Heat Factor
Step 1: Observed temperature from the Australian Bureau of Meteorology high-quality observational data set and global observed temperature from the Climatic Reseach Unit in UK were collected. Model simulations from CMIP5 (daily minimum and maximum temperature), available in the CDS catalogue, were also collected.
Step 2: Global simulations of mean surface air temperature over historical period were evaluated using the observations and several reanalysis products in order to evaluate the observational uncertainty as well.
Step 3: Some models failed the evaluation and therefore will not be used further. A group of model simulations to calculate the Excessive Heat Factor (EHF) was selected.
Step 4: The methodology used for calculating the EHF to both observations and simulations over the historical period was applied.
Step 5: The Australian region was sub-selected and heat wave metrics were checked and compared against the Bureau of Meteorology high-quality observational data set.
Step 6: Using the remaining model simulations, future EHF characteristics were calculated under high and low emission scenarios.
Step 7: The results are visualized in the Interactive Climate Atlas.