Find in this page technical specification of the required input data and processing workflow.

Parameters

• Parameters

Encoding

All details about the required data format can be found in the page Encoding details.

Sample data

• Providers are asked to provide full sample data from one model run containing all expected parameters, steps, forecast types etc.
• Naming convention for sample data:
  lcgcr_<centre WMO origin>_<YYYYMMDDRR>_<prod/test>_an.grib2
  prod/test ... production or test version of the data
• Merge all parameters from all steps for given model run and output type into one file:
  e.g. test reanalyses from ECMWF on the 1st of September 2017, 12Z  => lcgcr_ecmf_2017090112_test_an.grib2
• Put sample data on this host via sftp:

host: acq.ecmwf.int
user: observations
passwd: ***
directory: lcgcr

Production data acquisition

• The ECMWF's acquisition system (ECPDS) will be used for handling the production data exchange.
• The data will be pulled via recommended protocol (sftp/https/aws etc) from an agreed server location at the data producer's site (please avoid using obsolete ftp).
  • alternatively providers can push their data to the provided ECPDS destination via recommended protocols
• Participants are committed to guarantee a steady and reliable provision of their data and to communicate any relevant changes.
• The support mailing list on provider's side will be required to allow smooth communication related to common production issues in the future.

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