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METPWGMOG_6 SN20 IATA Alignment of SADIS and WIFS.docx

MEETING OF THE METEOROLOGY PANEL (METP)

WORKING GROUP MOG

FIRST MEETING

Offenbach, Germany, 10 to 11 April 2018

Agenda Item 3: Matters relating to SADIS

3.1: Status of outstanding WG - MOG (SADIS) Actions

ALIGNMENT OF THE OPMET CONTENT OF SADIS AND WIFS

(Presented by the SADISOPSG Member from

the International Air Transport Association (IATA))

SUMMARY

Global meteorological en-route forecasts and information about

meteorological phenomena, required for flight planning and operation, are

supplied by the world area forecast system (WAFS).

The data is distributed in digital form via the internet based services SADIS

and WIFS. In order to give all users access to all available data, it is required

that the content of SADIS and WIFS is identical.

The following paper gives an overview about the differences of the two

systems (SADIS and WIFS).

Action by the METP-WG/MOG is in paragraph 2.

1. INTRODUCTION

1.1 The world area forecasts centers (WAFCs), London and Washington, were established

when the International Civil Aviation Organization (ICAO) sets up the world area forecast system (WAFS)

in 1982.

With the introduction of internet based services (Secure SADIS FTP and WIFS) it was decided that all

users must be approved and registered to either Secure SADIS FTP or WIFS.

International Civil Aviation Organization

WORKING PAPER

METP-WG/MOG/6-SN20 11/04/18

METP-WG/MOG/6 SN20

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WAFS Internet File Service (WIFS) is provided by WAFC Washington. The Secure Aviation Data

Information Service (SADIS) is provided by the WAFC London.

Users under the footprint of the former SADIS satellite should use Secure SADIS FTP while all others

should be registered for WIFS.

In the unlikely event of a SADIS outage, SADIS users can request access to WIFS as a back-up and vice

versa. However SADIS FTP services are not available as a primary means of obtaining WAFS data to WIFS

users and WIFS is not available as a primary means of obtaining WAFS data to SADIS users.

1.2 Due to this separation of user access, users, especially airlines, expect that the content of

Secure SADIS FTP is identical to WIFS and that all important information available for flight planning and

operation are distributed via both systems.

2. DISCUSSION

2.1 Although data redundancy is required for back-up functionality and due to the separation

of user access there are differences between SADIS and WIFS.

This working paper highlights these differences in order to align the OPMET content in both systems.

In chapter 2.2 a comparison of SADIS and WIFS data is presented. As additional source for meteorological

data, Deutsche Wetterdienst (DWD) is listed there. DWD gets most of the data directly from Sates via

global telecommunication system (GTS) or aeronautical fixed telecommunication network (AFTN).

2.2 scheduled OPMET data (METAR and TAF) for AOP aerodromes

The requirements for OPMET information are described in Annex 1 of the SADIS User Guide (FASID

Table MET2A). The latest edition of FASID table is from 28th April 2014. It also contains the AOP table

of the ICAO regions.

Next to Annex 1 regional requirements according Table MET II-2 of European Air Navigation Plan (EUR

ANP) were considered for the IATA monitoring presented below.

The monitoring of SADIS and WIFS broadcast was performed over a period of 9 weeks, starting at 25th of

January 2018.

The presented table gives a brief overview on the availability of METAR/TAF data on both reception

systems (SADIS and WIFS).

METP-WG/MOG/1-SN/20

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The columns of table in the appendices can be interpreted as described in following example:

ICAO DWD/day SADIS/day WIFS/day FASID AOP SA/SP FC/FT Service

Code

AGGH AAAAAAA AAAAAAA AAAAAAA Y Y Y T F

VOCB WWWWWWW WWWWWWW _______ Y Y Y T F

WAPP _______ _______ XXXXXXX Y Y Y T F

[Provider]/day Each of these columns contains a string of 7 characters. Each character represents one

weekday, starting from Monday till Sunday from left to right.

Legend:

“_” – no data received or data received on SADIS and WIFS

“A” – data not received on SADIS and WIFS, but available via AFTN either from BoM or

from SIN DB or other national data server

“D” – data are only available via DWD

“S” – data are only available via SADIS

“W” – data are only available via WIFS

“X” – data are available on one of the other two sources

FASID: Aerodrome is listed in FASID MET 2A

AOP: Aerodrome is listed (“Y”) or not listed (“N”) in the AOP table

SA/SP: METAR/SPECI is required for these aerodrome TAF

FC/FT “C” – 9H TAF required

“T” – 18/24H TAF required

“X” – 30H TAF required

Service: “F” – Full 24H service

“P” – Partial service only

“N” – No OPMET data issued

Explanation to example table above:

AGGH: only available via AFTN

VOCB: only available on WIFS, but not on SADIS

WAPP: not available on WIFS, but available on SADIS and DWD

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METPWGMOG_6 SN20 IATA Alignment of SADIS and WIFS.docx

METAR

ICAO DWD/day SADIS/day WIFS/day FASID AOP SA/SP FC/FT Service Name Country ICAO region

DNIL _X_____ _______ _______ Y Y Y T F ILORIN Nigeria AFI

DNMA _______ _______ X______ Y Y Y T F MAIDUGURI Nigeria AFI

DNSO _______ _______ X______ Y Y Y T F SOKOTO/SADDIQ_ABUBAKAR_III Nigeria AFI

EDOP _X_____ _______ _______ Y Y Y T P SCHWERIN-PARCHIM Germany EUR

EIKY XXXXXXX _______ _______ Y Y Y C P KERRY Ireland EUR

FDMS _______ ______X _______ Y Y Y T F MANZINI/MATSAPHA Swaziland AFI

FGSL _XXXXXX _______ _______ Y Y Y X F MALABO Equatorial_Guinea AFI

FMCV _X_____ __D___D __D___D Y Y Y _ F ANJOUAN/OUANI Comoros AFI

FMNA _XXXX__ _______ _______ Y Y Y _ F ANTSIRANANA/ARRACHART Madagascar AFI

FNHU WWWXXWW WWW__WW _______ Y Y Y _ F HUAMBO/ALBANO_MACHADO Angola AFI

FNLU XXXXXXX _______ _______ Y Y Y X F LUANDA/4_DE_FEVEREIRO Angola AFI

FPST XXXXXXX _______ _______ Y Y Y X F SAO_TOME/INTERNATIONAL, SAO_TOME_ISLAND Sao_Tome_and_Principe AFI

FVFA _______ _______ X______ Y Y Y _ F VICTORIA_FALLS Zimbabwe AFI

FWCL _______ XX_X_XX _______ Y Y Y _ F BLANTYRE/CHILEKA Malawi AFI

FZAA XXXXXXX _______ _______ Y Y Y X F KINSHASA/N'DJILI Democratic_Republic _of_the_Congo AFI

FZIC __W____ __W____ _______ Y Y Y _ P KISANGANI-BANGOKA Democratic_Republic _of_the_Congo AFI

FZQA X_X_XXX _______ _______ Y Y Y _ F LUBUMBASHI Democratic_Republic _of_the_Congo AFI

FZWA X_XXX_X _______ _______ Y Y Y _ P MBUJI-MAYI Democratic_Republic _of_the_Congo AFI

GFLL _X____X _______ _______ Y Y Y X F FREETOWN/LUNGI Sierra_Leone AFI

GQNI XXXXXXW ______W _______ Y Y Y _ F NEMA Mauritania AFI

GQPA XXXXXXX _______ _______ Y Y Y _ F ATAR Mauritania AFI

GQPZ XXXXXXX _______ _______ Y Y Y _ F ZOUERATT/TAZADIT Mauritania AFI

KDLF _______ XXXXXXX _______ Y Y Y T F DEL_RIO/LAUGHLIN_AFB,_TX. United_States NAM

LDSB _______ _______ _X_____ Y Y Y T P BRAC/BRAC_I. Croatia EUR

LIPU _______ _DDDDDD _DDDDDD Y Y Y C P PADOVA Italy EUR

MGGT XXXXXXX _______ _______ Y Y Y T F LA_AURORA Guatemala CAR

METP-WG/MOG/6 SN20

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MGMM XXXXXXX _______ _______ Y Y N _ _ MUNDO_MAYA Guatemala CAR

MMCV _______ _______ _X_____ Y Y Y T P CD._VICTORIA Mexico CAR

NCRG _______ XXXXXXX _______ Y Y Y T F RAROTONGA_INTL. Cook_Islands ASI

NGFU WWW__WW WWW__WW _______ Y Y Y T F FUNAFUTI/INTL Tuvalu ASI

NVSS XXXXXXX _______ _______ Y Y Y T F SANTO/PEKOA Vanuatu ASI

NVVV XXXXXXX _______ _______ Y Y Y T F PORT_VILA/BAUERFIELD Vanuatu ASI

OAKB X_XXXXX _______ _______ Y Y Y T F KABUL_INTERNATIONAL Afghanistan ASI

OAKN WWWWWWW WWWWWWW _______ Y Y Y T F KANDAHAR Afghanistan ASI

ORMM XXXXXXX _______ _______ Y Y Y T F BASRAH_INTL_AIRPORT Iraq MID

ORNI XXXXXXX _______ _______ Y Y Y T F AL_NAJAF Iraq MID

ORSU XXXXXXX _______ _______ Y Y Y T F SULAYMANIYAH_ INTERNATIONAL_AIRPORT Iraq MID

SMZO XXXXXXX _______ _______ Y Y Y T P ZORG_EN_HOOP Suriname CAR

SYCJ XXXXXXX _______ _______ Y Y Y T F CHEDDI_JAGAN_ INTL_AIRPORT Guyana CAR

TRPG WWWWWWW WWWWWWW _______ Y Y Y T P JOHN_A._OSBORNE, _MONTSERRAT

Montserrat_(United _Kingdom) CAR

TVSM _S_____ _______ XSXXX__ Y Y N _ N MUSTIQUE,ST.VINCENT_ AND_THE_GRENADINES

Saint_Vincent_and_ the_Grenadines CAR

ULPB _______ _______ XXXXXXX Y Y Y C P PETROZAVODSK/BESOVETS Russian_Federation EUR

UUOO _______ _______ XXXXXXX Y Y Y C F VORONEZH/CHERTOVITSKOYE Russian_Federation EUR

VRMG _______ ____D__ __X_D__ Y Y Y X F GAN/GAN_INTERNATIONAL _AIRPORT Maldives ASI

WAAA WWWWWWW WWWWWWW _______ Y Y Y X F MAKASSAR/SULTAN_ HASANUDDIN Indonesia ASI

WABB _______ _______ XXXXXXX Y Y Y X F BIAK/FRANS_KAISIEPO Indonesia ASI

WAKK _______ _______ XXXXXXX Y Y Y T P MERAUKE/MOPAH Indonesia ASI

WAQQ AAAAAAA AAAAAAA AAAAAAA Y Y Y T P TARAKAN/JUWATA Indonesia ASI

WIDN _______ _______ XXXXXXX Y Y Y T P TANJUNG_PINANG/RAJA _HAJI_FISABILILLAH Indonesia ASI

ZSJN _______ _______ XXXXXXX Y Y Y T F JINAN/YAOQIANG China ASI

METP-WG/MOG/1-SN/20

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Long TAF

CAO DWD/day SADIS/day WIFS/day FASID AOP SA/SP FC/FT Service Name Country ICAO region

EGLC AAAAAAA AAAAAAA AAAAAAA Y Y Y C F LONDON/CITY United_Kingdom EUR

EHEH XXXXXXX _______ _______ Y Y Y X F EINDHOVEN/EINDHOVEN Netherlands EUR

EKYT XXXXXXX _______ _______ Y Y Y T F AALBORG_(CIV/MIL) Denmark EUR

ETNL _______ XXXXXXX _______ Y Y Y C F LAAGE Germany EUR

EVLA XXXXXXX _______ _______ Y Y Y C P LIEPAJA Latvia EUR

FBFT _______ _____X_ _______ Y Y Y _ F FRANCISTOWN Botswana AFI

FBKE _______ _____X_ _______ Y Y Y _ F KASANE Botswana AFI

FBMN _______ _____X_ _______ Y Y Y _ F MAUN Botswana AFI

FBSP _______ _____X_ _______ Y Y Y _ F SELIBE-PHIKWE Botswana AFI

FKKL _______ _______ XXXXXXX Y Y Y _ F MAROUA/SALAK Cameroon AFI

FKKN _______ _______ _X_____ Y Y Y _ F N'GAOUNDERE Cameroon AFI

FKKR _______ _______ XXXXXXX Y Y Y _ F GAROUA Cameroon AFI

FLHN __S____ _______ __S____ Y Y Y X P HARRY_NKUMBULA_ INTERNATIONAL

Zambia AFI

FLMF __S__S_ _______ __S__S_ Y Y Y _ P MFUWE Zambia AFI

FLSK __S____ _______ __S____ Y Y Y X P SIMON_KAPWEPWE Zambia AFI

FNLU _______ ___X_XX _______ Y Y Y X F LUANDA/4_DE_FEVEREIRO Angola AFI

FVBU _______ _X_____ _______ Y Y Y _ F J.M._NKOMO Zimbabwe AFI

FVFA _____S_ _______ ___X_S_ Y Y Y _ F VICTORIA_FALLS Zimbabwe AFI

FWCL _______ _____X_ _______ Y Y Y _ F BLANTYRE/CHILEKA Malawi AFI

FZQA _______ ____D__ ____D__ Y Y Y _ F LUBUMBASHI Democratic_Republic_of_ the_Congo

AFI

HDAM _____S_ _X_____ _____SX Y Y Y T F AMBOULI Djibouti AFI

HKMO _______ _______ ___X___ Y Y Y T F MOMBASA Kenya AFI

HLLT ____W__ __X_W__ _______ Y Y Y T F TRIPOLI_(TRIPOLI_INTL) Libya MID

HSKA _______ __XDDDD ___DDDD Y Y Y _ F KASSALA Sudan MID

HSPN _______ __XXXXX _______ Y Y Y _ F PORT_SUDAN Sudan MID

HSSJ ___WW_X ___WW__ _______ Y Y Y _ F JUBA South_Sudan AFI

HSSS _______ X__XXXX _______ Y Y Y T F KHARTOUM Sudan MID

KDLF _______ XXXXX_X _______ Y Y Y T F DEL_RIO/LAUGHLIN_AFB,_TX. United_States NAM

METP-WG/MOG/6 SN20

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LECH _______ _______ _XXX_XX Y Y _ _ _ CASTELLON Spain EUR

LFGJ ____W__ ____W__ _______ Y Y Y C F DOLE-TAVAUX France EUR

LQBK XXXXXXX _______ _______ Y Y Y T F BANJA_LUKA Bosnia_and_Herzegovina EUR

LQMO XXXXXXX _______ _______ Y Y Y T F MOSTAR Bosnia_and_Herzegovina EUR

LQSA XXXXXXX _______ _______ Y Y Y T F SARAJEVO Bosnia_and_Herzegovina EUR

LQTZ XXXXXXX _______ _______ Y Y Y T P TUZLA Bosnia_and_Herzegovina EUR

LTAC XXXXXXX _______ _______ Y Y Y T F ANKARA/ESENBOGA Turkey EUR

LTAF XXXXXXX _______ _______ Y Y Y T F ADANA Turkey EUR

LTAI XXXXXXX _______ _______ Y Y Y T F ANTALYA Turkey EUR

LTAJ XXXXXXX _______ _______ Y Y Y T F GAZIANTEP Turkey EUR

LTAT XXXXXXX _______ _______ Y Y Y T F MALATYA Turkey EUR

LTAU XXXXXXX _______ _______ Y Y Y T F KAYSERI Turkey EUR

LTAZ XXXXXXX _______ _______ Y Y Y T P NEVSEHIR/KAPADOKYA Turkey EUR

LTBA XXXXXXX _______ _______ Y Y Y X F ISTANBUL/ATATURK Turkey EUR

LTBJ XXXXXXX _______ _______ Y Y Y T F IZMIR/ADNAN_MENDERES Turkey EUR

LTBR XXXXXXX _______ _______ Y Y Y T F BURSA/YENISEHIR Turkey EUR

LTBS XXXXXXX _______ _______ Y Y Y T F MUGLA/DALAMAN Turkey EUR

LTBU XXXXXXX _______ _______ Y Y Y T F TEKIRDAG/CORLU Turkey EUR

LTCC XXXXXXX _______ _______ Y Y Y T F DIYARBAKIR Turkey EUR

LTCE XXXXXXX _______ _______ Y Y Y T F ERZURUM Turkey EUR

LTCG XXXXXXX _______ _______ Y Y Y T F TRABZON Turkey EUR

LTCS XXXXXXX _______ _______ Y Y Y T F SANLIURFA/GAP Turkey EUR

LTFC XXXXXXX _______ _______ Y Y Y T F ISPARTA/S._DEMIREL Turkey EUR

LTFE XXXXXXX _______ _______ Y Y Y T F MUGLA/MILAS-BODRUM Turkey EUR

LTFJ XXXXXXX _______ _______ Y Y Y T F ISTANBUL/SABIHA_GOKCEN Turkey EUR

LUKK XXXXXXX _______ _______ Y Y Y T F CHISINAU/INTERNATIONAL Republic_of_Moldova EUR

MGGT XXXXXXX _______ _______ Y Y Y T F LA_AURORA Guatemala CAR

MGMM XXXXXXX _______ _______ Y Y N _ _ MUNDO_MAYA Guatemala CAR

NVSS XXXXXXX _______ _______ Y Y Y T F SANTO/PEKOA Vanuatu ASI

OAKN WWWWWWW WWWWWWW _______ Y Y Y T F KANDAHAR Afghanistan ASI

PAED _______ XXXXXXX _______ Y Y Y T F ANCHORAGE/ELMENDORF _AFB,AK.

Alaska_(United_States) NAM

PAEI _______ XXXXXXX _______ Y Y Y T F FAIRBANKS/EIELSON_AFB,AK. Alaska_(United_States) NAM

SKCC _______ X_XXXXX _______ Y Y Y T P CUCUTA_INTL/NORTE_ Colombia SAM

METP-WG/MOG/1-SN/20

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DE_SANTANDER

SUSO _______ _______ X______ Y Y Y T P SALTO/INTL.NUEVA_ HESPERIDES

Uruguay SAM

UKLN __W____ __W____ _______ Y Y Y C P CHERNIVTSI Ukraine EUR

UNTT ____A__ ____A__ ____A__ Y Y Y C F TOMSK/BOGASHEVO Russian_Federation EUR

URMO _______ ___X___ _______ Y Y Y C P VLADIKAVKAZ/BESLAN Russian_Federation EUR

VCRI SSSSSSS _______ SSSSSSS Y Y Y X F MATTALA/MATTALA_ RAJAPAKSA_ INTERNATIONAL_AIRPORT

Sri_Lanka ASI

VEGT _______ DDDDDDD DDDDDDD Y Y Y T F GUWAHATI India ASI

VEGY _______ DDDDDDD DDDDDDD Y Y Y T F GAYA India ASI

WIDN _______ _______ XXXXXXX Y Y Y T P TANJUNG_PINANG/RAJA_ HAJI_FISABILILLAH

Indonesia ASI

ZKPY XXXXXXX _______ _______ Y Y Y T F SUNAN Democratic_People's_ Republic_of_Korea

ASI

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METPWGMOG_6 SN20 IATA Alignment of SADIS and WIFS.docx

2.3 non-scheduled OPMET data (AIRMET, GAMET, SIGMET etc.)

OPMET also includes so called non-scheduled messages. For these message types significant differences

could be found between SADIS and WIFS.

The following details provide the results of a short monitoring and cross-check of the content of SADIS

and WIFS. This check only covers a very short period.

• SIGMET, US Convective SIGMET, US Domestic SIGMET, Tropical Cyclone Advisories,

Volcanic Ash Advisories

No significant differences found. All messages could be found on both systems.

• AIRMET, GAMET

SADIS provides a lot of AIRMET and GAMET messages, while WIFS only distributes some of the

AIRMETs being available in SADIS.

Compared to 2017 the amount of AIRMETs being available via WIFS increased. 2017 only AIIRMETs

from Brazil could be received via WIFS, today also AIRMETs for Europa and Africa are available.

• US AIRMET, US Area Forecast

Neither SADIS nor WIFS distributes US AIRMET from Alaska, Hawaii or mainland USA although this

message type is not according ICAO Annex 3 they contain useful information for flight operation and are

required for safety reasons.

• AIREP/PIREP

Only WIFS content contains such message types

3. CONCLUSION

3.1 The information in the Appendix to this working paper shows that SADIS and WIFS are

aligned satisfactory with respect scheduled OPMET information (METAR and TAF), but for other types

of OPMET information (i.e. non-scheduled) some efforts are required, such as the addition of some

messages to Internet-based service concerned.

3.2 IATA is requesting that the OPMET content of Secure SADIS FTP and WIFS is continued

to be aligned. The group is invited to formulate the following conclusion accordingly:

Draft Conclusion …/… - Alignment of OPMET content from SADIS and WIFS

That in coordination with the European OPMET Data Management Group the SADIS and the

WIFS provider states be invited to:

METP-WG/MOG/6 SN20

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a) continue efforts to align of the OPMET content of SADIS and WIFS for scheduled OPMET

information (METAR and TAF) and non-scheduled OPMET information (such as AIRMET,

SIGMET, GAMET, AIREP etc.);

b) add US AIRMET and US Aera Forecast to the content of SADIS ansd WIFS

c) report on progress in respect of a) and b) above to the next WG-MOG Meeting.

d) provide an updated FASID Table for AOP aerodromes in electronic form to IATA for monitoring

purpose

Note 1. –The European OPMET Date Management Group in an ex-official member of the

SADISOPSG.

4. ACTION BY THE METP-WG/MOG

4.1 The METP-WG/MOG is invited to:

a) Note the information contained in this paper and

b) Decide on a draft conclusion or decision for the group’s consideration