• Assess both the need for synoptic-scale basic observational input for Regional RA and the historical data sources
containing surface observations at the sub-daily scale and gain access to their archives
• Link and coordinate with existing data rescue initiatives and projects to optimise resources, avoid duplication and
enhance data availability and accessibility
• Filling in gaps for available synoptic-scale observations for data-sparse European regions and periods post-1950
and further recovery and digitization of synoptic-scale observations for data-sparse European regions and periods
pre-1950
• Enhance high-quality synoptic-scale data development, including methodological improvements for climate timeseries
homogenisation at the hourly scale in support of enhanced Regional Reanalysis (RRA) development for
Europe
• Enhance gridding procedures within E-OBS, particularly for extremes
• Improve the uncertainty assessment within E-OBS, taking greater account of the changes in station density in
both space and time. These uncertainties should also be more explainable and understandable within and outside
the climate science community
• Continue to produce E-OBS in real time