3 WAFSOPSG5WP3 INTERNATIONAL CIVIL AVIATION ORGANIZATION WORKING PAPER WAFSOPSG5WP3

Update to ICAO WAFS-Related Provisions in ANP/FASID

WAFSOPSG/5-WP/3

International Civil Aviation Organization

WORKING PAPER

WAFSOPSG/5-WP/3

19/6/09

WORLD AREA FORECAST SYSTEM OPERATIONS GROUP (WAFSOPSG)

FIFTH MEETING

Paris, France, 16 to 18 September 2009

Agenda Item	4:	Review of ICAO provisions related to WAFS
	4.1:	Review of ANP/FASID procedures
	4.2:	Status of draft Amendment 75 to Annex 3 related to WAFS

UPDATE TO ICAO WAFS-RELATED PROVISIONS IN ANP/FASID

(Presented by the Secretary)

SUMMARY

This paper proposes updates to WAFS-related provisions in the ANP/FASID, and describes the status of the amendment to Annex 3 concerning WAFS.

INTRODUCTION
1. The group will recall that it is tasked to review the regional procedures contained in the ANP/FASID at every meeting. The group is also invited to take note of the changes introduced by the Air Navigation Commission to the draft amendment to WAFS-related provisions in Annex 3 — Meteorological Service for International Air Navigation endorsed by the WAFSOPSG/4 Meeting.
Review of ANP/FASID procedures
1. The group will note that a draft amendment to the global version of the ANP/FASID procedures related to WAFS has been developed by the Secretariat (Appendix refers). If endorsed by the group, it will introduce the following changes:

deletion of FASID Tables MET 6 concerning the responsibilities of world area forecast centres (WAFC); these tables have become redundant since such responsibilities are now global and included in detail in Annex3; and
replacement of FASID Tables MET 7 by links to the appropriate websites containing the up-to-date lists of international satellite communications system (ISCS) and satellite distribution system for information relating to air navigation (SADIS) users.

The group is invited to review these procedures and formulate the following conclusion:

Conclusion 5/... — Amendment to WAFS-related regional procedures in the ANP/FASID

That, the Secretariat forward the WAFS-related regional procedures as shown in Appendix^¹.... to this report to the ICAO Regional Offices concerned for onward transmission to States for comment, as necessary in view of their prompt inclusion in ANP/FASID concerned.

STATUS of DRAFT Amendment 75 to Annex 3 RELATEd to WAFS
1. In view of the three-year amendment cycle of Annex 3, the group is expected to review WAFS-related amendments thereto at every second WAFSOPSG meeting. The group will recall that it undertook a review of WAFS-related elements of draft Amendment 75 to Annex 3 at its fourth meeting (2008). Subsequently, the proposal was reviewed by the Commission, which agreed that the proposed amendment should be transmitted to States and international organizations for comment with some modifications. In particular, the Commission agreed that the SIGWX forecasts should continue to include information on:

the accidental release of radioactive materials into the atmosphere;
severe squall lines; and
widespread sandstorm/dustdstorm.

The group may wish to note that the amendment proposal has been circulated to States and international organizations for comment; broad support for the draft amendment has been expressed by them as far as the WAFS-related proposals are concerned. Therefore, it may be expected that the final amendment will be similar to the one endorsed by the group at its fourth meeting with the exception of items a) to c) above which will be retained in Annex 3 for the time being.
Finally, it may be noted that all the WAFS-related elements to be included in draft Amendment 76 to Annex 3 (for applicability in 2013) will have to be prepared in time for the WAFSOPSG/6 Meeting (expected to be convened during the first half of 2011).

ACTION BY THE WAFSOPSG
1. The WAFSOPSG is invited to:

note the information in this paper; and
decide on the draft conclusion proposed for the group’s consideration.

— — — — — — — —

WAFSOPSG/5-WP/3

Appendix

APPENDIX

DRAFT REGIONAL PROVISIONS IN THE ANP/FASID

BASIC ANP

World area forecast system (WAFS)

(FASID Tables MET 5, MET 6 and MET 7)

FASID Table MET 5 sets out the [AFI, ASIA/PAC, CAR/SAM, EUR, MID, NAT] Region[s] requirements for WAFS forecasts to be provided by WAFC [London, Washington]. [WAFSOPSG Conclusion 1/2]
FASID Table MET 6 sets out the responsibilities of WAFCs London and Washington for the production of WAFS forecasts. For back-up purposes, each WAFC should have the capability to produce WAFS forecasts for all the required areas of coverage. [WAFSOPSG Conclusion 1/2 5/…]
WAFS forecasts should be disseminated by WAFC [London, Washington] using the [satellite distribution system for information relating to air navigation (SADIS), international satellite communications system (ISCS1, ISCS2)] covering the reception area shown in FASID Chart CNS [4]. [WAFSOPSG Conclusion 4/2]
Each State should make the necessary arrangements to receive and make full operational use of WAFS forecasts disseminated by WAFC [London, Washington]. FASID Table MET 7 The lists of the authorized users of the [SADIS, ISCS1, ISCS2] satellite broadcast in the [AFI, ASIA/PAC, CAR/SAM, EUR, MID, NAT] Region[s] and location of the operational VSATs are. available from the following websites:

www.icao.int/anb/sadisopsg (click: “Status of implementation”) for SADIS

[Site to be provided by the ISCS Provider State in time for the WAFSOPSG/5 Meeting] for ISCS.

[WAFSOPSG Conclusion 4/2 5/…].

FASID

World area forecast system (WAFS)

(FASID Tables MET 5, MET 6 and MET 7)

1. FASID Table MET 5 sets out the [AFI, ASIA/PAC, CAR/SAM, EUR, MID, NAT] Region[s] requirements for WAFS forecasts, to be provided by WAFC [London, Washington].

2. FASID Table MET 6 sets out the responsibilities of WAFCs London and Washington for the production of WAFS forecasts.

3. FASID Table MET 7 lists the authorized users of the [SADIS, ISCS1, ISCS2] satellite broadcast in the [AFI, ASIA/PAC, CAR/SAM, EUR, MID, NAT] Region[s] and location of the operational VSATs. The table is included in the FASID for information purposes and kept up-to-date by the Regional Offices concerned.

FASID TABLE MET 5 — REQUIREMENTS FOR WAFS FORECASTS

EXPLANATION OF THE TABLE

Column

1. WAFS forecasts required by the [AFI, ASIA/PAC, CAR/SAM, EUR, MID, NAT] States, to be provided by WAFC [London, Washington].

2. Area of coverage required for the WAFS forecasts, to be provided by WAFC [London, Washington].

FORECAST REQUIRED

AREAS REQUIRED

SWH forecasts (FL 250-630) in the BUFR code form

GLOBAL

SWM forecasts (FL 100-250) in the BUFR code form

[NIL or ASIA SOUTH, EUR, MID, NAT]

Forecasts of upper-air wind, temperature and humidity, cumulonimbus clouds, icing, and clear-air and in-cloud turbulence and of altitude of flight levels in the GRIB code form

GLOBAL

SWM forecasts are provided for limited geographical areas as determined by regional air navigation agreement. Areas “ASIA SOUTH”, “EUR” and “MID” provided by WAFC London; area “NAT” provided by WAFC Washington.
. WAFCs will continue to issue forecasts of SIGWX in PNG chart form for back-up purposes for fixed areas of coverage as specified in Annex 3
Forecasts of cumulonimbus clouds, icing, and clear-air and in-cloud turbulence are experimental forecasts which are expected to become available by the end of 2009.

FASID TABLE MET 6 —

RESPONSIBILITIES OF THE WORLD AREA FORECAST CENTRES

Editorial Note.— Delete in toto.

FASID TABLE MET 7 —

AUTHORIZED USERS OF THE [SADIS, ISCS1, ISCS2] SATELLITE BROADCAST AND THE INTERNET-BASED WAFS FTP SERVICE IN THE [AFI, ASIA/PAC, CAR/SAM, EUR, MID, NAT] REGION[S]

Editorial Note.— Delete in toto.

— END —

1The draft procedures are at Appendix A to this working paper.

Tags: wafsopsg5wp3, working, aviation, international, civil, organization, paper