Remarks
ECMWF is a world leader in data assimilation research and development. The quality of our forecasts depends on how well we use information received in real-time from the global observing system, which consists of numerous satellite instruments, weather stations, ships, buoys, and other components.
Real-time data:
You will find the Catalogue of Real-time data here: https://www.ecmwf.int/en/forecasts/datasets/search?f%5B0%5D=im_field_audience%3A608 .
You can order data through one of our catalogue contact points (https://www.ecmwf.int/en/about/contact-us/catalogue-contact-points) or, if you are located outside of the ECMWF Member States territory, directly through ECMWF Data Services (https://www.ecmwf.int/en/forecasts/accessing-forecasts/order-real-time-forecasts/).
Archive data:
Depending on your location you can order archive data (https://www.ecmwf.int/en/about/contact-us/catalogue-contact-points) directly through ECMWF. Specific data sets from our data portal (http://apps.ecmwf.int/datasets/) are available free of charge, subject to terms and conditions.