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History: RARS-2, APSDEU-6 and RARS-3

ASIA-PACIFIC RARS DEVELOPMENTS (Regional ATOVS Retransmission System) David Griersmith 7th Meeting of APSDEU, Honolulu Hawaii 20-22 September 2006. History: RARS-2, APSDEU-6 and RARS-3. 2 nd RARS Workshop recommendation on Asia-Pacific RARS (Dec 2005).

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History: RARS-2, APSDEU-6 and RARS-3

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  1. ASIA-PACIFIC RARS DEVELOPMENTS (Regional ATOVS Retransmission System)David Griersmith7th Meeting of APSDEU, Honolulu Hawaii 20-22 September 2006 APSDEU-7 20-22 Sept 2006, Honolulu Hawaii

  2. History: RARS-2, APSDEU-6 and RARS-3 APSDEU-7 20-22 Sept 2006, Honolulu Hawaii

  3. 2nd RARS Workshop recommendation on Asia-Pacific RARS (Dec 2005) • A) A pilot Asia-Pacific RARS be established comprising: • real time L1c ATOVS BUFR file exchange between major centres (at least Beijing, Melbourne, Seoul, Tokyo) by the target schedule date of April 2006; • Status: Operational system running since June 2006 • Expected pilot phase 7-9 core baseline HRPT stations • status – implemented as at Sept 2006 • trial data exchanges between major centres intra-regionally and inter-regionally; • status – late 2006 trial exchanges planned for • intraregional - Melbourne-Singapore;; Melbourne to Vladivostok; Melbourne to Wellington NZ; Melb to Honolulu • inter-regional trial of Melbourne-Exeter, Tokyo-Washington APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii

  4. RARS-2 recommendation cont. • B) Following the successful trial of the pilot Asia-Pacific RARS, an operational Asia-Pacific RARS be established by June 2006 comprising the routine operational exchange of ATOVS data for the core set of 7-9 HRPT stations. Done. • C) After the operational Asia-Pacific RARS is established with core baseline stations, an expanded operational RARS be established with up to 16 HRPT stations, with the target schedule date of December 2006. In Progress • D) In parallel with the above, the Asia-Pacific RARS Coordinator to provide all contributing RARS countries, plus WMO and EUMETSAT, with a draft project plan including details of the evolving HRPT network and country RARS Focal Points, by April 2006. Nearly complete APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii

  5. Key outcomes from APSDEU-6 RARS discussion 1.1 Endorsement to establish Asia-Pacific RARS 1.2 APSDEU has a major role to play in RARS planning and implementation due to its successful history in data exchange - the APSDEU community can contribute significantly to RARS implementation in the Asia-Pacific region 1.2 Noting ITSC-14 WG International Issues & Future Systems Rec’n to define global HRPT baseline stns for global RARS system 1.2.1 RARS Focal points to develop baseline A-P stations, plus examine possibility of 10 more designated stns 1.2.2 Agree to adhere to global standards APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii

  6. Outcomes from APSDEU-6 RARS discussion • baseline RARS stns and nodes 2.1 likely core baseline stations and potential additions Australia - Melbourne (2), Darwin, Perth, Casey, possibly Alice Springs China - Beijing, Urumuqi, Guangzhou, Hong Kong Japan - Kiyose, Syowa Korea - Seoul potential additions considered: Hawaii; New Zealand, Philippines, Singapore, Vladivostok, Dumont D’Urville, Tahiti, Fiji 2.2 Planning for intraregional dissemination centres (nodes) Tokyo, Melbourne, Beijing, possibly Seoul and Singapore APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii

  7. RARS-3 Discussions • JMA stated that they were very happy with the progress of the Asia-Pacific RARS. NWP centres in Japan have evaluated the impact of this data and seen positive impacts and these centres would like to increase their utilisation of ATOVS data (e.g. with data from Europe and the Americas). • Dr Griersmith also welcomed the report that he had received from Korea on the implementation status, and felt that it would be beneficial to propagate this approach across the Asia-Pacific RARS initiative. • Concerning APSDEU, WMO expressed its appreciation for the opportunity to participate in the last APSDEU meeting (APSDEU-6) and was looking forward to participating in the APSDEU-7 meeting in September 2006 (Dr Griersmith will represent WMO at this meeting). • Finally, WMO expressed its appreciation for the rapid, and impressive, progress towards full implementation of the Asia-Pacific RARS. APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii

  8. RARS-3 discussions cont. • noted good progress towards goal of global coverage and the issue of station overlaps was discussed. Currently inappropriate to optimise network to reduce overlaps which provide redundancy/robustness within the network, plus bandwidth cost was not excessive for ATOVS data. Once the network is fully operational readdress issue. • concluded that extension of the network to include AVHRR data (like EARS-AVHRR) could be very beneficial (noting that data volumes will be higher). Dr Griersmith particularly welcomed such an evolution. • need to place increased emphasis on the implementation of the South-American RARS leading up to RARS-4. APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii

  9. RARS Implementation Group • RARS Implementation Group - Draft Terms of Reference to be tabled at CGMS Nov 2006. Jerome Lafeuille described main objectives of the Group: · Establishment of new RARS to expand the RARS network towards global coverage; · Inter-regional data exchange of RARS data; · Standardisation in the areas of e.g: • - product processing software usage; • - product formats; • quality-tagging of data; • service management. · Ensuring consistency with the IGDDS concept · Reviewing the RARS concept to ensure it fulfils regional and global requirements for improved timeliness of critical LEO data APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii

  10. ASIA-PACIFIC RARS STATUS APSDEU-7 20-22 Sept 2006, Honolulu Hawaii

  11. Design • HRPT Stations • Built on existing national stations (Australia, China incl HK, Japan, Korea, New Zealand) • Further stations identified subject to • coverage/user requirement assessment (e.g. NWP models) • network/communications considerations • possible candidates (need to define this) • Singapore, Guam, Tahiti, Fiji, Hawaii • additional Antarctic stations (McMurdo, Dumont d’Urville, Siyowa – in addition to Casey) – possibility of integrated approach • assume processing done at each HRPT station – output AAPP Level 1a or 1c • Transfer of data between stations and processing centres – hybrid mixture of GTS-based FTP, internet-based FTP, national communications APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii

  12. Design-standardisation/harmonisation • Anything disseminated inter-regionally must use a commonly agreed version of the AAPP software, and should be in BUFR (which should be integrated into the distributed software) • Minimum standards should be set for quality-tagging of data (source traceability, ……) • Minimum service management standards should be set (points to be addressed are in the EARS documentation) • EUMETSAT can assist with its quality control and monitoring software (free) APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii

  13. Current architecture • Processing/Dissemination Centre: Tokyo • HRPT stations from which data are made available from the Centre: Tokyo-Kiyose, Syowa, Antarctica, Seoul, Beijing, Guangzhou and Urumuqi • Comments: CMA advises that in the single Beijing ATOVS files sent to Tokyo each file comprises an amalgamation of data from 3 stations • Processing/Dissemination Centre: Melbourne • HRPT stations from which data are made available from the Centre: Melbourne-Crib Point (2 stations), Darwin, Perth APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii

  14. Processing or Dissemination Centre HRPT stations providing ATOVS data September 2006 To be added December 2006 Tokyo Tokio-Kiyose Syowa (Antarctica) Seoul Beijing Guangzhou Urumuqi Melbourne Melbourne (x 2) Darwin Perth Singapore Vladivostok Honolulu New Zealand Hong Kong Honolulu I hope Asia Pacific RARS (2) APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii

  15. Current system configuration APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii

  16. Owner of ground station : National Institute of Polar Research Location : Syowa Station, Antarctica (69.00S, 39.58E) Data acquisition and processing : HRPT data are received at Syowa Station and transmitted to NIPR via INMARSAT. The data are transmitted by FTP from NIPR to JMA/MSC via the Internet and processed at JMA/MSC. Coverage : Figure 2 shows actual coverage from 20 August to 31 August 2005 (12 days). Satellites : Mainly receiving NOAA-17 and NOAA-18, sometimes NOAA-15. The selection of satellite depends on NIPR’s research activities (including other satellites, such as EOS, DMSP). Frequency of acquisition:11 times per day on an average Processing sensor and data level: AMSU-A: level 1a, 1b, 1c AMSU-B: level 1a, 1b, 1c, 1d HIRS: level 1a, 1b, 1c, 1d Processing time (from start of receiving to end of processing): About 30 minutes APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii

  17. Pacific gaps APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii

  18. Asia-Pacific RARS stations Japan - Kiyose, Syowa 21 Aug - operational in RARS Korea - Seoul Sept test, operational in RARS as of Sept 2006 Australia - Melbourne (2), Darwin, Perth operational in RARS: Casey expected by March 2007; Davis by April 2007 subject to comms 10 stns China - Beijing operational in RARS; expected Urumuqi, Guangzhou, Hong Kong by Dec 2006 13 stns Singapore - exchange expected Sept 2006  14 stns USA - test exchange hoped for Hawaii Honolulu  15 stns New Zealand - exchange requested but depends on MetService running AAPP  16 stns; possibility of NIWA station Antarctica - Dumont D’Urville and McMurdo Canada - to be contacted after further operational progress Tahiti - to be contacted Fiji - NOAA station needs upgrade plus AAPP - possibly by Feb 2007 Philippines - needs to be running AAPP plus stn upgrade Vladivostok - exchange expected Sept 2006  possibly 22 stns APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii

  19. RARS Vision • RARS increases satellite data use with big global impacts; expansion to AVHRR, ASCAT, geo data • RARS fits with WMO, GEO and an Asia-Pacific regional system for coordinated: • direct reception e.g. L-band, X-band • processing (cal/nav) and archival • applications • R&D, education & training • rapid data exchange • balance between local reception and global non-local access driven by user needs, security of access, satellite constraints (DB/onboard storage), operator constraints (availability of RT products). APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii

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