International exchange of
"ADDITIONAL" DATA AND PRODUCTS
Definition of "Additional data and products"= data and products additional to those with no conditions on their use
The Twelfth World Meteorological Congress (1995) adopted Resolution 40 "WMO Policy and Practice for the Exchange of Meteorological and Related data and products including Guidelines on Relationships in Commercial Meteorological Activities" to facilitate worldwide co-operation in the establishment of observing networks and to promote the exchange of meteorological and related information in the interest of all nations. |
When adopting the Resolution, Congress reminded Members of their obligations, under Article 2 of the WMO Convention, to facilitate world-wide co-operation in the establishment of observing networks and to promote the exchange of meteorological and related information in the interest of all nations, and urged Members to implement the practice on the international exchange of meteorological and related data and products.
According to the practice adopted by Congress, all meteorological and related data and products required to fulfil Members’ obligations under WMO Programmes would be encompassed by the combination of essential and additional data and products exchanged by Members.
In Annex 1 to Resolution 40 (Cg-XII) Congress urged Members to make known to all Members, through the WMO Secretariat, those additional meteorological and related data and products on which Members placed conditions related to their re-export for commercial purposes outside the receiving country (or group of countries forming a single economic group). Congress believed that, as a result of the implementation of the practice by all Members, the volume of data and products exchanged internationally will increase.
Notifications to "additional" data and products and the conditions some Members have attached to these data are available and via the Operational Newsletter of the World Weather Watch.
NOTIFICATIONS FROM MEMBERS:
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DATA FILES - ADDITIONAL DATA/PRODUCTS:
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UPDATING PROCEDURES AND NOTIFICATION PROCEDURES:
The Secretariat of the World Meteorological Organization seeks to maintain a high standard of accuracy in the material published. We would like to remind you that changes/updates to your set of additional data/products, related to Resolution 40 (Cg-XII), are to be sent to the Secretary-General by way of formal correspondence.
Updates can be provided using our:
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Reference material
WMO No. 386 - Manual on the GTS: Volume I & Volume II
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WMO No. 827 - World Meteorological Congress (Cg-XII) (Geneva, 1995) [En] [Fr] [Es]
- Resolution 40 (Cg-XII)—WMO policy and practice for the exchange of meteorological and related data and products including guidelines on the relationships in commercial meteorological activities.
- Annex I: Data and products to be exchanged without charge and with no conditions on use
- Annex II: Guidelines for relations among National Meteorological or Hydrometeorological Services (NMSs) regarding commercial activities
- Annex III: Guidelines for relations between National Meteorological or Hydrometeorological Services (NMSs) and the commercial sector
- Annex IV: Definitions of terms in the practice and guidelines
WMO No. 837 - Exchanging Meteorological Data [En] [Fr] [Es]
WMO No. 902 - World Meteorological Congress (Cg-XIII) (Geneva, 1999) [En]
- Resolution 25—Exchange of Hydrological Data and Products
- Annex IV - Geneva Declaration of Thirteenth World Meteorological Congress
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