technical sub-group on direct broadcast packages & rars ... · isdn 128k 64k . via moscow 64k...

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ITSC-19, RARS Technical Sub-group 1

Technical Sub-Group on Direct Broadcast Packages & RARS

Report on RARS Jérôme Lafeuille & Liam Gumley

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Participants

• Nathalie Selbach • Nigel Atkinson • Anna Booton • Kathy Strabala • Graeme Martin • Rebecca Cintineo • Pascale Roquet • Katerina Melnik • Geoff Cureton

• Ashim Kumar Mitra • Scott Mindock • Su-Hyun Jung • Jeong-Sik Kim • Jae-Dong Jang • Dieter Klaes • Kelvin Brentzel • Akira Okagaki • Mitch Goldberg

• Liam Gumley & Jérôme Lafeuille (Co-chairs)

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Topics discussed

• RARS status (ATOVS data)

• RARS evolution (hyperspectral sounder data) – Data coding – GTS dissemination

• Convergence between RARS and NOAA DBRTN

• Keeping the RARS initiative on track – RARS Implementation Group

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RARS Network Status

• RARS currently provides retransmission of ATOVS L1c, from 42 stations covering 80% of the globe, within 30 min

• 3 components: – EARS (18 stations) – Asia-Pacific (16 stations) – Brazil/Argentina (8 stations)

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What is RARS ? • A network of Direct Readout stations sharing their data

in near real time … • … following a set of procedures and best practices to

ensure interoperability, global availability and timeliness of RARS products

• Key requirements: – Use current AAPP and deliver L1c in BUFR – Send over the GTS (and possibly other means) within 30 min – Identifyers, Bulletin headings and WMO filename convention

• New codes and headings defined for IASI, CrIS, ATMS

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Convergence between RARS and DBRTN (1) • NOAA/DBRTN and WMO/RARS are willing to share their data • DBRTN data would be sent to GTS via EUMETSAT and DWD

Issue 1:Check NCEP-RARS compatibility of BUFR formats Action: NOAA to review what is needed in BUFR format for CrIS, ATMS

and IASI and determine if they could use AAPP BUFR (i.e. RARS format) instead of NCEP BUFR (Mitch Goldberg)

Action: NOAA to send samples of NCEP BUFR data to Nigel Atkinson (Liam Gumley)

Issue 2: Acceptable data rates for the GTS Action: WMO will inform the group on the data rates supported by the various links of the GTS (Jérôme Lafeuille)


Vientiane

Baghdad

Doha

Kuwait

Bahrain

Dhaka

Yangon

Kabul

Karachi

Colombo

Male

Phnom Penh

PyongYang Ashgabad

Macao

256K

Dushanbe

Almaty

NI

NI

NI

Seoul

NI

NI

512K

14.4-28.8K (V.34)

4M 64K

64K

1200

64K

64K

64k

Offenbach

Offenbach

Cairo Algiers

Kuala Lumpur

Tashkent

Novosibirsk

Khabarovsk

Bangkok

Washington

NI

24-19.2K (V.34)

19.2-24K (V.34)

Regional Meteorological Telecommunication Network for Region II (Asia) Current status as of 26 September 2012

Bishkek

64K

Singapore

RTH in Region II

NMC in Region II

Centre in other region

MTN circuit Regional circuit Interregional circuit Additional circuit

Non-IP link IP link Internet E-mail transmission

NI No implementation

Tehran

Sanaa

Hong Kong

Moscow

NI

F/R CIR <32/32K>

Manila

Internet

Jeddah

Muscat

64K

64K

64K

Washington

ISDN 128K

64K via Moscow

64K

64K

Thimpu

New Delhi

NI

64K

64K

64K

128K

9.6K

Ulaanbaatar

Abu-Dhabi

1200

64K

Melbourne

Melbourne

IMTN MPLS

10M

64K

512K IMTN MPLS

IMTN MPLS

IMTN MPLS

IMTN MPLS

IMTN MPLS

MPLS

Internet

Internet

2M

10M

8M

10M

2M

512K

2M

2M

512K

4M

MPLS

2M

128K

MPLS

4M

Internet

Internet

Internet

Internet

Internet

Internet

Internet

Internet Internet

Internet

EUMETSAT

MPLS 2M

Toulouse

Internet

64K

64K

64K

NI

Internet

Kathmandu

Internet

Internet

64K

Internet

Hanoi

128K

2M MPLS

2M

1M

MPLS

128K

2M

64K MPLS

2M

MPLS

64K 64K

64K

64K MPLS MPLS

Internet 10M

Toulouse

Beijing

Moscow

64K

64K

64K

Internet Internet

Internet

2M

8M

8.6M

IMTN MPLS

10M

1.5M

Tokyo

Exeter

IMTN MPLS

10M

6M

IMTN MPLS

8M

64K

8M

EUMETSAT

MPLS 4M 10M

Internet

VSAT 512K

128K


MTN Circuit Regional Circuit Interregional Circuit Additional Circuit IP Link Non-IP Link FR Frame Relay CIR Committed Information Rate IPLC Intl Private Leased Circuit DRS Disaster Recovery Site Regional Meteorological Telecommunication Network for Region V (South-West Pacific)

Papeete

Honiara

Noumea

Jakarta

ASMC Singapore

Manila

Brunei

RTH

NMC

Centre in other region

Port Moresby

IPLC 64k

RSMC Darwin

Apia

Pago Pago

Majuro

RSMC Nadi

Port Vila

Wellington

RSMC Honolulu

Guam

Moscow

FR 6M (CIR:1M)

Washington Tokyo

New Delhi Kuala Lumpur

Exeter

Melbourne

Bangkok Beijing

10-FEB-2010

Internet

Funafuti

Rarotonga

Niue

Tonga

Tokelau

Internet

Internet

Internet

Internet

Internet

Internet

NI

Internet

Palau

Pohnpei

PTWC

Malé

Kuwait

Internet

IMTN MDCN MPLS

IMTN MDCN MPLS

IMTN MDCN MPLS

NOAANet MPLS NOAANet

MPLS

IMTN MDCN MPLS

Internet

RA V MPLS

RA V MPLS

RMDCN

MPLS

64k

64k

64k

64k

64k

64k

RA II MPLS

2M

Internet

2M

2M

2M

2M

1M

3M

3M 1M

1.5M

1.5M 3M

3M

RA V MPLS

128k

64k

RA V MPLS

64k

64k

RA V MPLS

64k

64k

RA V MPLS

64k

64k

Melbourne has implemented backup links over the Internet to Tokyo, Washington and Exeter

Tarawa

3M

Dilli

NI

Canberra DRS

DRS Backup for internet, MDCN and RAV MPLS

Internet

FR 64 (CIR:16)

AFTN +GTS 4.8k

FR 64k (CIR 8)

Internet Internet

NI

Internet

Internet

Internet

Internet

MeteoFranceMPLS via Toulouse

512k

128k


South AfricaPretoria

LuxembourgLuxembourg

CyprusLarnaca

SwedenNorrköping

Germany EUMETSAT

IrelandDublin

SerbiaBelgrade

HungaryBudapest

ItalyRoma

MacedoniaSkopje

ChinaBeijingPortugal

Lisbon

GreeceAthens

CroatiaZagreb

AustriaVienna

SloveniaLjubljana

SlovakiaBratislava

RomaniaBucharest

Czech RepublicPrague

PolandWarszawa

LebanonBeirut

United Arab EmiratesAbu Dhabi

TurkeyAnkara

Saudi ArabiaJeddah

JordanAmman

IndiaNew Delhi

RussiaMoscow

SpainMadrid

FranceToulouse

SwitzerlandZurich

BelgiumBrussels

The NetherlandsDe Bilt

DenmarkCopenhagen

United KingdomExeter

United KingdomECMWFGermany

Offenbach

IcelandReykjavik

NorwayOslo

LithuaniaVilnius

LatviaRiga

EstoniaTallinn

FinlandHelsinki

RussiaKhabarovsk

UzbekistanTashkent

RussiaNovosibirsk

KazakhstanAlmaty

EgyptCairo

IranTehran

Viet NamHanoi

GeorgiaTbilisi

AzerbaijanBaku

AustraliaMelbourne

ArmeniaYerevan

BelarusMinsk

UkraineKiev

Republic of MoldovaKishinev

AlbaniaTirana

MontenegroPodgorica

Bosnia and HerzegovinaSarajevo

BulgariaSofia

SyriaDamascus

AlgeriaAlgiers

TunisiaTunis

LibiaTripoli

Malta

KenyaNairobi

SenegalDakar

USAWashington

IsraelBet Dagan Australia

Melbourne

NO

NI

NI

20M/20M

8M/8M

1G/100M

512/128

9.6

Figure 1: Regional Meteorological Telecommunication Network for WMO Region VI

10M/10M

100M/50M

20M/20M

2M/2M

10M/10M

4M/4M

8M/8M

7M/7M

RTH in RA VI

NMC in RA VI

Centre in other regionMTN circuitRegional circuitInterregional circuitBilateral circuit

9.6

64

0.05

0.05

0.05

2.4

1M/1M

1M/1M

1M/1M

4M/4M

50M/50M

128/128

2M/2M

5M

1M/1M

1M/1M

1G/100M

4M/4M

128/128

1M

RMDCN-NGRMDCN-NG

256128

21.6

6464

10M

64

1M/1M

1M/1M

4M/4M

128/128

50M/50M

1G/200M

NI

NO Not operationalNot implemented

10M/10M

8M

10M/8M

RTH in other region

INTERNET

21.6

4M/4M

13.03.2014

10M/10M

GreenlandSondre

Stormfjord

JapanTokyo

CanadaDorval

2M/2M

20M/20M

8M/8M

EUMETSAT-EUMETCast ?

The Netherlands-DRDe Bilt

3M/3M

4M/4M

MoroccoCasablanca

South KoreaSeoul

4M/4M

19.2

NO4M/4M

10M/10M

2M/2M1M/1M

64

2.4

64

10M/10M

NO

2M/2M

Transmission speed in kilobit/s

100M/10M

NO

10M/10M

2M/2M

INTERNET

VPLSMETEONET

1M

1M

Link speed/Band width to the RMDCN-NG

Not connected to RMDCN-NG yet

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Convergence between RARS and DBRTN (2)

Issue 3: Ensure interoperability of RARS and DBRTN • Action: SSEC, NOAA, EUMETSAT, WMO should coordinate

on data formats, software versions, and latency requirements and come up with a plan to provide the DBRTN products for inclusion in RARS .

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Draft WMO Guide on (D)RARS

• Direct Readout And Re-distribution System for LEO satellite data • Addressing standard/recommended practices for

(D)RARS operators and users including: – Processing software – Product format – Product distribution – Service requirements

(availability, timeliness, quality control) – User information – Maintenance and Operations – Procedure for station inclusion/removal

L Band reception

NOAA/POES

X Band reception

S-NPP

RT-STPS(de-multiplex)

RDR

HRPT Level 0

CSPP

AAPP

NOAA/ATOVS (HIRS, AMSU, MHS)

RARS productsL1c BUFR

S-NPP/CrIS, ATMS

SDR

METOP/ATOVS (HIRS, AMSU, MHS)

L Band reception

METOP

CCSDS to L0(de-multiplex)

EPS level 0 OPS-LRSMETOP/IAS

I

EPS level1c

L Band reception

NOAA/POES

X Band reception

S-NPP

RT-STPS(de-multiplex)

RDR

HRPT Level 0

CSPP

AAPP

NOAA/ATOVS (HIRS, AMSU, MHS)

RARS productsL1c BUFR

S-NPP/CrIS, ATMS

SDR

METOP/ATOVS (HIRS, AMSU, MHS)

L Band reception

METOP

CCSDS to L0(de-multiplex)

EPS level 0 OPS-LRSMETOP/IAS

I

EPS level1c

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Convergence between RARS and DBRTN (3)

Action: The draft Guide to RARS which defines the RARS procedures, software, formats, data exchange convention, service requirements, etc. should be finalized, published, and shared widely with potential data providers (Jérôme Lafeuille)

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• RARS matters are addressed at ITSC, at CGMS-WGI, and at NAEDEX-APSDEU

• Transition to advanced sounders and convergence with DBRTN require special attention

Action: There is a need for reactivating the RARS Implementation Group within WMO with a broader scope to include NOAA DBRTN (Jérôme Lafeuille)

Keeping RARS on track : governance

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Thank You for your support to the (D)RARS !

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More background

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Progress on RARS since ITSC-18

• Additional stations providing NOAA/ATOVS RARS products – New-Delhi, Chennai (IMD) in test mode – Tahiti (Meteo-France) to become operational within a few days – Easter Island planned through agreement between CLS-Argos and Chile

• A number of stations (24 out of 42) providing METOP/ATOVS • Hyperspectral IR sounder products

– EUMETSAT provides IASI and CrIS products on a pilot basis – Codes and identifiers proposed for these new products – Estimation of data rates (requested by APSDEU/NAEDEX)

• CGMS-41 was informed on the NOAA project of Real-Time Network for Low-Latency Infrared and Microwave Sounder Data – Recommended convergence with RARS

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Resources on RARS

• WMO Space Programme (www.wmo.int/sat) => Data access and use => RARS (or Google: WMO+RARS) – RARS network and status – RARS Coding Summary – RARS Operators Standards

http://www.wmo.int/sat

http://www.wmo.int/pages/prog/sat/documents/RARS_Network-status-and-plans.pdf

http://www.wmo.int/pages/prog/sat/documents/RARS_Coding-summary.xls

http://www.wmo.int/pages/prog/sat/documents/RARS_OperatorsStandards.doc

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About RARS coding issues

• Contents of RARS Coding Summary – Station coordinates – BUFR description section elements: (Sub)centre ID, data (sub)category – GTS Headings T1T2A1A2ii CCCC YYGGgg (BBB) – Filename elements – With examples and links to relevant WMO Manuals and Code Tables

• BUFR Data sub-category for new instruments – Hyperspectral IR= 30, Microwave sounder=40

• GTS Heading: New (draft) entries for A1 – IASI=Q, CrIS=C, ATMS=S

• Recommended registration in « Vol. C1 »

http://www.wmo.int/pages/prog/sat/documents/RARS_Coding-summary.xls

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