Attachment 2: Reproduced from Annex 1 to the WMO draft Resolution 11.4 (Cg-XII) - New Practice for the Exchange of Meteorological and Related Data and Products

APPENDIX E (page 2-3, section A: Policy)

"ADOPTS the following policy on the international exchange of meteorological and related data and products:

As a fundamental principle of the World Meteorological Organization (WMO), and in consonance with the expanding requirements for its scientific and technical expertise, WMO commits itself to broadening and enhancing the free and unrestricted* international exchange of meteorological and related data and products;

STRESSES that the data and products exchanged among Members are essential to the provision of services in support of the protection of life and property and the well-being of all nations;

URGES Members to:

1. Strengthen their commitment to the free and unrestricted exchange of meteorological and related data and products;

2. Provide to the research and education communities free and unrestricted access to data and products for their non-commercial activities;

3. Strengthen their commitments to the WMO and ICSU (International Council of Scientific Unions) World Data Centres;"

APPENDIX E (Annex 1, page 6-7)

"Data and products required to sustain WMO Programmes should be placed in Tier 1, unless the Member originating them is reasonably certain that their re-export for commercial purposes by a receiving Member would cause harm to the originating NMS. In such cases the data and products may be placed in Tier 2.

Content of Tier 1 and Tier 2

7. Tier 1 shall include as a mandatory component:

(a) Six-hourly surface synoptic data from Regional Basic Synoptic Networks e.g. in SYNOP, BUFR or other general purpose WMO code;

(b) All available in situ observations from the marine environment e.g. in SHIP, DRIBU, BATHY, TESAC code, etc.;

(c) All available aircraft reports e.g. in ASDAR, AMDAR, AIREP code, etc.;

(d) All available data from upper air sounding networks e.g. in TEMP, PILOT, TEMP SHIP, PILOT SHIP code etc.;

(e) All reports from the network of stations recommended by the Regional Association as necessary to provide a good representation of climate e.g. in CLIMAT/CLIMAT TEMP and CLIMAT SHIP/CLIMAT TEMP SHIP code, etc.;

(f) Products distributed by WMCs and RSMCs to meet their WMO obligations, respecting paragraph 10 below;

(g) Severe weather warnings and advisories for the protection of life and property targeted upon end-users.

8. Tier 1 should also include:

(a) As many additional data as possible from the Regional Basic Synoptic Networks;

(b) Additional data required to define the state of the atmosphere at least on a scale of the order of 200 km in the horizontal and 6 to 12 hours in time;

(c) Data and products from operational meteorological satellites as agreed between WMO and satellite operators, to include those data and products necessary for operations regarding severe weather warnings and tropical cyclone warnings.

9. Noting the criterion, Tier 2 should consist of those meteorological and related data and products required to sustain WMO programmes which are not included in Tier 1.

10. Meteorological and related model products, should be classified as follows:

(a) Products whose construction adds little value to the data on which they are based, or from which the original data can easily be retrieved, should carry the same restrictions as those data;

(b) Products from global NWP models may be distributed without regard to restrictions which were attached to the original data used in the models;

(c) Products from a Member's regional NWP model employing Tier 2 data from other NMSs may be exported for commercial purposes outside the territory of the Member running the model, unless objected to by an affected Member. Considering the guidelines for relations among NMSs in Annex 3 every effort should be made to coordinate the provision of such services prior to implementation to avoid possible harm to other Members."

* "Free and unrestricted" means non-discriminatory and without charge [Res. 23 (EC-XLII)]. "Without charge", in the context of Resolution 11.4 (Cg-XII) means at no more than the cost of reproduction and delivery, without charge for the data and products themselves.

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Last Update: 4/3/95