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WM OMM
ITSC-19, RARS Technical Sub-group 1
Technical Sub-Group on Direct Broadcast Packages & RARS
Report on RARS Jérôme Lafeuille & Liam Gumley
WM OMM
ITSC-19, RARS Technical Sub-group 2
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)
WM OMM
ITSC-19, RARS Technical Sub-group 3
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
WM OMM
ITSC-19, RARS Technical Sub-group 4
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)
WM OMM
ITSC-19, RARS Technical Sub-group 5
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
WM OMM
ITSC-19, RARS Technical Sub-group 6
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)
ITSC-19, RARS Technical Sub-group 7
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
ITSC-19, RARS Technical Sub-group 8
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
ITSC-19, RARS Technical Sub-group 9
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
WM OMM
ITSC-19, RARS Technical Sub-group 10
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 .
WM OMM
ITSC-19, RARS Technical Sub-group 11
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
WM OMM
ITSC-19, RARS Technical Sub-group 12
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)
WM OMM
ITSC-19, RARS Technical Sub-group 13
• 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
WM OMM
ITSC-19, RARS Technical Sub-group 16
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
WM OMM
ITSC-19, RARS Technical Sub-group 17
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
WM OMM
ITSC-19, RARS Technical Sub-group 18
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 »