From the YOPP news section at https://www.polarprediction.net/news/:
MET Norway and the YOPP International Coordination Office are publishing the first of a series of video tutorials on how data can be searched in the YOPP Data Portal. YOPP maintains this metadata portal as an overview archive for Arctic and Antarctic data generated during the Year of Polar Prediction. The community is invited to find YOPP data from a specific area or time to use for their various purposes.
Through discovery metadata, the YOPP Data Portal offers a web interface to find information about YOPP datasets. The YOPP Data Portal utilizes interoperability interfaces to harvest metadata describing YOPP datasets from the data centers where they are archived. The YOPP Data Portal also serves as the interface for YOPP datasets feeding into the WMO Information System (WIS). It facilitates real-time access to data through the internet and the WMO Global Telecommunication System (GTS) as requested by the user community.
A new video tutorial is now available to learn more on how to search for metadata at the YOPP Data Portal. This video is the first of a series of video tutorials to be produced in order to make the use of the YOPP Data Portal as easy as possible.