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

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

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

4. APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii 4 RARS-2 recommendation cont. uB) 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. uC) 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 uD) 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

5. 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

6. APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii 6 Outcomes from APSDEU-6 RARS discussion ubaseline 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

7. APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii 7 RARS-3 Discussions uJMA 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). uDr 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. uConcerning 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). uFinally, WMO expressed its appreciation for the rapid, and impressive, progress towards full implementation of the Asia-Pacific RARS.

8. APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii 8 RARS-3 discussions cont. unoted 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. uconcluded 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. uneed to place increased emphasis on the implementation of the South-American RARS leading up to RARS-4.

9. APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii 9 RARS Implementation Group uRARS 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; uquality-tagging of data; uservice 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

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

11. APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii 11 Design uHRPT Stations l Built on existing national stations (Australia, China incl HK, Japan, Korea, New Zealand) l 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 l assume processing done at each HRPT station – output AAPP Level 1a or 1c l Transfer of data between stations and processing centres – hybrid mixture of GTS-based FTP, internet-based FTP, national communications

12. APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii 12 Design-standardisation/harmonisation uAnything 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) uMinimum standards should be set for quality-tagging of data (source traceability, ……) uMinimum service management standards should be set (points to be addressed are in the EARS documentation) uEUMETSAT can assist with its quality control and monitoring software (free)

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

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

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

16. 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

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

18. 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

19. APSDEU-7, 20-22 Sept 2006, Honolulu Hawaii 19 RARS Vision uRARS increases satellite data use with big global impacts; expansion to AVHRR, ASCAT, geo data uRARS fits with WMO, GEO and an Asia-Pacific regional system for coordinated: l direct reception e.g. L-band, X-band l processing (cal/nav) and archival l applications l R&D, education & training l rapid data exchange ubalance 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).