Agrometeorological indicators time-series from 1979 to present derived from reanalysis

This catalogue entry provides the time series of the originally gridded Agrometeorological indicators from 1979 to present derived from reanalysis, also known as AgERA5. The main difference with the related entry is that the dataset is organised here to make time the primary dimension for analysis and extraction. For any user-defined location (point) or small area, the dataset returns the temporal evolution of the selected variables, enabling efficient time-series studies without requiring users to download and manage full global gridded files.
Variables included in the dataset are cloud cover, dewpoint temperature, precipitation flux, precipitation duration fraction (total, liquid, and solid), relative humidity at multiple times of day and derived 24-hour maximum and minimum, snow thickness (including liquid-water equivalent), solar radiation flux, 2m temperature statistics (mean, minimum, maximum for different time periods), vapour pressure, vapour pressure deficit at maximum temperature, reference evapotranspiration (Penman-Monteith FAO56), and wind speed.
AgERA5 provides daily surface meteorological data from 1979 to present as input for agriculture and agro-ecological studies. It is based on the hourly ECMWF ERA5 data at surface level, aggregated to daily time steps at the local time zone and corrected towards a finer topography at a 0.1° spatial resolution. The correction to the 0.1° grid is realised by applying grid- and variable-specific regression equations to the ERA5 dataset interpolated at 0.1°. The equations are trained on ECMWF's operational high-resolution atmospheric model (HRES) at a 0.1° resolution, so that the data is tuned to the finer topography, land-use pattern and land-sea delineation of the HRES model. The version used in this entry is AgERA5 v2.0.
Data Access
This time-series product is designed for efficient extraction of temporal data at specific locations or small areas. Users can extract a complete time series for a single geographic location (point query) or for all grid points within a small area (area query).
Output Formats
Data can be downloaded in NetCDF format, which preserves full metadata and coordinate information, or in CSV format, which is convenient for direct import into spreadsheets and analysis tools. Both formats are available for point and small-area queries.
Programmatic Access
This dataset is well suited to programmatic access via the CDS API. Users can request time series for individual points or small areas without transferring complete global gridded files. This "time-first" access pattern reduces data handling overhead for workflows focused on location-specific analyses and local-to-regional studies.