Introduction
Starting from the The starting point for this work was the list of parameters requested in the ITT (see here), a review process on them was carried on. An in-depth review of this list was performed, and some modifications were proposed to the different providers to C3S seasonal activity (ECMWF, Met Office, MeteoFrance, DWD and CMCC). Additionally, it was recognised that the original list of parameters was (to a certain extent) incomplete, as it just used GRIB parameter codes to describe the variables, in a context where . This was an issue, as most of the contributors data providers are currently using (or will do in the near future) netCDF format for their provision the files they will supply to C3S.
Taking all of that into account, a revisited list of parameters to be used by the seasonal forecasting providers has been summarized in the tables below, including . This includes some basic information for encoding both in GRIB and netCDF.
A more detailed information page about the encoding in netCDF will be found in the Guide to NetCDF encoding for C3S seasonal providers, and this page should be considered the definitive specification for the data files to be provided.
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Due to the current characteristics of the C3S service , (in its transition from the Proof-of-Concept phase to the Pre-operational phase, ) this list needs to should be understood considered as a reference of what should be mandatory in the future provisions of data to C3S. In this sense, comparing the data streams' contents from the providers and there are slight differences between what is included in the list of requested variables , some slight and the content of the actual data streams' from the providers. These differences are tolerated, even they are not desirable. |
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