What is the Product Requirements Editor (PREd)?

The Product Requirements Editor (PREd) is a web application for the configuration and maintenance of real-time dissemination requirements.

The PREd is currently available to the following real-time forecast data users:

• ECMWF Member and Co-operating States (ECMWF members)

• NMHS licence holders

• Maximum charge licence holders

Access to PREd is arranged as part of your real-time forecast data delivery set up.

After you have selected the data you require by browsing the ECMWF catalogue of real-time products. ​Your data is installed in the Product Requirements Editor (PREd), where the requirements are validated according to: 1) what's available and 2) which data you are permitted to access (not all customers pay to access the high-frequency products). Once the data has been installed, files are produced by the product generation system - you can review these files on the ECMWF Production Data Store (ECPDS)