2. Functions and responsibilities of Meteorological Telecommunication Centres
| 2.1 The WMCs (as regards telecommunications) and the RTHs shall be responsible for: |
(a) |
Collecting the bulletins from their associated NMCs and transmitting them in the appropriate
form on the MTN, either directly or through the appropriate WMC/RTH; |
(b) |
Transmitting on the MTN, either directly or through the appropriate RTH, as internationally
agreed and in the appropriate form, the processed meteorological information produced by the
WMC or RSMC associated with them; |
(c) |
Relaying selectively on the circuits of the MTN, as agreed, the bulletins which they receive from
these circuits and/or from RTHs not situated on the MTN; |
(d) |
|
(e) |
Before relaying a message issued from their zones of responsibility ( as an RTH in a Region and/or
as an RTH located on the MTN) on the GTS, checking the parts related to the telecommunications
of the message in order to maintain standard telecommunication procedures. The RTH informs
the associated centre originating or compiling the message of any correction to be made to the
message. The RTH and its associated centres make arrangements for the insertion of the message
without telecommunication errors on the GTS. Messages issued from outside the zone of responsibility
of an RTH shall not be corrected by the RTH except in case of special arrangements for
inserting data into the GTS; |
(f) |
Establishing data dissemination systems (terrestrial and/or via satellite) as required in accordance
with regional plans; |
(g) |
Carrying out the monitoring of the operation of the GTS of the WWW; |
(h) |
For WMCs/RTHs on the MTN, maintaining the Catalogue of Meteorological Bulletins as regards
bulletins issued from the zone for which they are responsible for the collection, exchange and
distribution of data, as given in paragraph 1, Attachment I–3, and also including data from the
Antarctica, as appropriate. WMCs/RTHs on the MTN may share their responsibility with the RTHs
(not on the MTN) included in their zone of responsibility through regional arrangements. |
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| Note: |
The plan for monitoring the operation of the WWW is given in Attachment I–5. |
| 2.2 RSMCs not combined with RTHs |
2.2 RSMCs not combined with RTHs should ensure distribution of their products by agreement
with an appropriate GTS centre or centres.
| 2.3 NMCs responsibility with regard to telecommunications |
NMCs shall be responsible for:
(a) |
Collecting observational data from their own territory or that of one or more Members according
to bilateral agreements, as well as observational data from aircraft and ships received by centres
located within the area of responsibility. This collection shall take place as soon as possible and
shall be completed within 15 minutes of the observing station’s filing time;
|
Notes: |
|
(1) |
The observing station’s fi ling time is defi ned as the time at which the coded meteorological report is
first presented to the telecommunication system. For an aircraft or ship weather report, it is the time
when it is received by the appropriate communication station (land station/coast station). |
(2) |
Under normal conditions, the report should be presented to the telecommunication system not later
than five minutes after the completion of its coding. |
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|
(b) |
Compiling such data into bulletins and transmitting them to the associated RTH, in compliance
with standard telecommunications procedures; |
Note: |
NMCs may be associated with more than one RTH. |
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|
(c) |
Receiving and distributing for their benefi t and that of Members that request them, in accordance with bilateral agreements, observational data and processed meteorological information, to
meet the requirements of the Members concerned; |
(d) |
Carrying out the relevant monitoring of the operation of the GTS of the WWW. |
Notes: |
|
(1) |
Checking of meteorological content of national observational data is to be accomplished by the
responsible NMCs, or the other originating centres as appropriate (see paragraph 2.4 below), before
such data are compiled into bulletins for further transmission on the GTS. |
(2) |
The plan for monitoring the operation of the WWW is given in Attachment I–5. |
2.4 Each member shall designate an NMC, or other centre as appropriate, for performing the
functions mentioned in paragraph 2.3 above, as well as for the meteorological checking of national
observational data before such data are presented for further transmission on the GTS. |
