> Then Monday, the planet’s average temperature ticked up to 17.15 degrees Celsius… <
So now they claim they can measure the temperature of the Earth to the nearest hundredth of a degree. Given how huge and varied the Earth is, that’s laughably impossible. It would be like determining the age of an old tree to the nearest hundredth of a second.
Scientists who supports this nonsense should be drummed out of the profession. But instead, they will get awards and research grants.
The ERA5 dataset is a reanalysis of hourly meteorological conditions back to 1979. The dataset combines a weather model with observational data from satellites and ground sensors to build a consistent long-term record of our climate. … It contains estimates of atmospheric variables such as air temperature, pressure and wind at different altitudes, as well as surface variables such as rainfall, soil moisture content and ocean wave height. ERA5 is replacing ECMWF’s previous atmospheric reanalysis, ERA-Interim, and will be extended even further in the course of this year with meteorological data going back to 1950.
Parenthetically, “data” is a plural word.