The switch will happen at 13:00 UTC, after which time there will be a risk period of approximately 1 hour. During this period DCP data provided via the internet on the “Public DCP Service” may be interrupted, delayed or duplicated.

The changes that will affect the users are as follows:

-    DCP Bulletins will no longer be distributed via EUMETCast
-    DCP Bulletins will no longer be distributed via the direct dissemination service
-    DCP messages sent over the internet (Auxiliary Data (Quality Records)) will now be available on User accounts
-    DCP Bulletins sent on the GTS will continue to be sent as normal.

Following the change the MSG DCPs downloaded from the Public DCP Service on the internet will include a DCP quality record.

The downloaded gzip DCP files will have the following format:

The first 86 Bytes will contain the DCP Service header, as explained on this table.

The following 31 Bytes will contain the DCP Quality record (DCP_QUALITY), as described in appendix A.7 of MSG Ground Segment LRIT/HRIT Mission Specific Implementation.

The DCP message (DCP_MESSAGE) will appear after the DCP Quality record. This is also described at appendix A.7 of the above document. The size of the DCP_Message is variable.

The above sequence is repeated in subsequent messages throughout the gzip file.

For further information, please contact our User Service Helpdesk.

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