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There is an application on the Climate Data Store (CDS) which allows users to compute and download selected daily statistics of variables from a number of hourly ERA5 datasets: Daily statistics calculated from ERA5 data It provides users with a simple tool to obtain ERA5 data aggregated at daily frequency without having to download the original sub-daily resolution data. The ERA5 data is subset to the selected rectangular spatial region of interest and sampled at the selected frequency. Time coordinates can optionally be shifted to a selected time zone. The data is then aggregated to a daily frequency using the selected statistic and returned to the user in a single netCDF file. It is possible also to use the CDS API to request daily data from the CDS ERA5 daily application as described on this user forum post: |
This knowledge base article shows you how to calculate daily total precipitation using ERA5 data.
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| For simplicity, data in the output NetCDF file of the second script is unpacked. You may want to pack the data to save some disk spaces. Refer to https://www.unidata.ucar.edu/software/netcdf/workshops/2010/bestpractices/Packing.html for detailed information. |
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This document has been produced in the context of the Copernicus Climate Change Service (C3S). The activities leading to these results have been contracted by the European Centre for Medium-Range Weather Forecasts, operator of C3S on behalf of the European Union (Delegation agreement Agreement signed on 11/11/2014 and Contribution Agreement signed on 22/07/2021). All information in this document is provided "as is" and no guarantee or warranty is given that the information is fit for any particular purpose. The users thereof use the information at their sole risk and liability. For the avoidance of all doubt , the European Commission and the European Centre for Medium - Range Weather Forecasts have no liability in respect of this document, which is merely representing the author's view. |
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