"Heatwave days" means unusually hot and intense days with extremely high temperatures.
Full definition
Map showing ratio of total
heatwave days per summer (frequency times duration) in the mid-21st century compared to the end of the 20th century.
The average number of annual
heatwave days increased from less than three to more than six between 1950 and 2010, the report found.
This summer there were no reports of power failures due to gas shortages despite considerably more gas - powered generation being in the fuel mix reported by NEMWatch
on heatwave days.
Importantly, these trends can largely be explained by increases in mean ocean temperatures, suggesting that we can expect further increases in marine
heatwave days under continued global warming.»
«We find that from 1925 to 2016, global average marine heatwave frequency and duration increased by 34 % and 17 %, respectively, resulting in a 54 % increase in annual marine
heatwave days globally.
A study published yesterday in Nature Communications suggests that there's been a 54 percent increase in the number of annual «
marine heatwave days» since the 1920s — that is, the total number of days each year that a marine heat wave is occurring somewhere around the world.
The following chart shows
heatwave days per decade from 1950 to 2013, highlighting a trend toward more heatwave days in Australia over time:
Stockholm and Rome could expect the greatest increase in numbers of
heatwave days, while Prague and Vienna could see the greatest increases in maximum temperatures.