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A new reanalysis product ERA5 has more recently been released by ECMWF as part of Copernicus Climate Change Services. This product has higher spatial resolution (31 km) and covers the period from 1979 to present.
An atmospheric reanalysis (also: meteorological reanalysis and climate reanalysis) is a meteorological and climate data assimilation project which aims to assimilate historical atmospheric observational data spanning an extended period, using a single consistent assimilation (or "analysis") scheme throughout.
It is worth mentioning that, the equation (see previous section) is an integration of zenithal path on the grid points of pressure, temperature and relative humidity to measure atmospheric phase delays. These parameters are available in the ERA5 data: (ERA5 data download link Archived 2023-12-17 at the Wayback Machine)
Climate scientists working at the European Union's Copernicus Climate Change Service have announced that 2024 is "virtually certain" to be the warmest year on record.. According to its ERA5 ...
In 2017, the centre's member states accepted an offer from the Italian Government to move ECMWF's data centre to Bologna, Italy. [2] The new site, a former tobacco factory, would be redesigned by the architecture firm gmp. During 2020, the Centre arranged to move its Copernicus operations away from Reading and into European Union territory. [3]
Worldwide, January 2025 was 3.15 degrees warmer than it was before industrial times, Copernicus said. "January 2025 is another surprising month, continuing the record temperatures observed ...
The Copernicus Climate Change Service [1] (abbreviated as C3S) is one of the six thematic services provided by the European Union's Copernicus Programme.The Copernicus Programme is managed by the European Commission and the C3S is implemented by the European Centre for Medium-Range Weather Forecasts (ECMWF).
Four different data sets are shown - HadCRUT, NOAAGlobalTemp, GISTEMP, and Berkeley Earth - as well as two reanalyses - ERA5 and JRA-55. There is good agreement on the overall evolution of global temperatures and year-to-year variability.