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ASIA-PACIFIC RARS DEVELOPMENTS (Regional ATOVS Retransmission System) Gary Weymouth 8th Meeting of APSDEU, Montreal, Canada, 8-10 October 2007. Acknowledgements. David Griersmith, Anthony Rea, international contributors, SpBOS staff. WMO RARS-Implementation group meeting 3-4 July 2007.

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ASIA-PACIFIC RARS DEVELOPMENTS (Regional ATOVS Retransmission System)Gary Weymouth8th Meeting of APSDEU, Montreal, Canada, 8-10 October 2007

  • David Griersmith, Anthony Rea, international contributors, SpBOS staff
wmo rars implementation group meeting 3 4 july 2007
WMO RARS-Implementation group meeting 3-4 July 2007
  • Attended by Japan, China, Korea, Argentina, EUMETSAT, Australia
  • Aim for 90% coverage of globe by RARS
some notes from wmo rars and igdds implementation group meetings 3 6 july 2007
Some notes from WMO RARS and IGDDS Implementation Group meetings 3-6 July 2007
  • (WMO RARS) ‘AP-RARS Coordinator to approach relevant HRPT operators with the objective of expanding coverage in the Central and South Pacific’
  • (WMO RARS) Suggested RARS filename change (Z->W?) (BoM has changed station IDs to lower case, and ‘CPT’ to ‘mel’); Implement metadata standards(?)
  • (WMO IGDDS) JMA, BoM and KMA to express their requirements for proposed additions to the FengYunCast dissemination schedule. To discuss at APSDEU-8 to obtain a consolidated regional proposal for CMA.
  • Importance of installing the latest version of the AAPP software was emphasised.
apsdeu 7
  • RARS has increased ATOVS real time data access and use in N Hem with major positive NWP impact
  • Redundancy of RARS data an issue, however at present, data timeliness is the most important issue
  • NOAA to look into RARS data from Honolulu
  • metop processing – ATOVS and ASCAT
key developments
Key developments
  • AP-RARS now effectively operational
  • Now receiving ATOVS data from Siyowa (Japan, Antarctica)
key developments1
Key Developments
  • March 2007 - Singapore data successfully received in Melbourne
  • April 2007 – Singapore data switched through to JMA Tokyo via GTS
  • Hong Kong and New Zealand have successfully produced BUFR encoded level-1c files suitable for RARS. New Zealand data sent by FTP to The Bureau, then onto GTS.
  • test data sent from Korea
  • NWP SAF provides QC for RARS data
pacific data gap
Pacific data gap
  • high priority to fill gap
  • important stations:
    • Fiji (Australia to complete approx mid 2008)
    • Hawaii
    • Guam
    • Tahiti
metop progress
MetOp Progress
  • JMA have made significant progress in this regard, commencing MetOp-A Processing at Kiyose. Significant milestones reached have been:
    • Test Reception of MetOp since March 1, 2007;
    • Test Processing since March 16 2007;
    • Operational Reception and Processing since May 25 2007 using AAPP v6.3;
    • Upgrade to AAPP v6.4 on May 31 2007 at Kiyose and Syowa Stations; and
    • Generation of data ready for AP-RARS in BUFR format (ATOVS) since July 4 2007.
benefits to nwp
Benefits to NWP
  • Significant improvements to short cut-off analyses have been demonstrated at JMA using AP-RARS data.
  • Impact experiments within the Bureau’s regional and global models have also clearly demonstrated the value of timely data.
nwp benefits at jma



Without AP-RARS



NWP Benefits at JMA
more on ap rars at jma
more on AP-RARS at JMA
  • JMA has been exchanging ATOVS data via the Global Telecommunication System (GTS) with Australia, China, Republic of Korea and Singapore for the Asia-Pacific RARS (A-P RARS). JMA has been providing ATOVS data received at two stations, Kiyose in Japan and Syowa Station in Antarctica.
  • JMA started using RARS data in its operational global data assimilation in February 2007. RARS data has positive impact on JMA’s NWP analysis and forecast.
  • JMA is going to receive and provide MetOp/ATOVS data for A-P RARS in addition to NOAA/ATOVS data.
  • For supporting users, JMA will open a dedicated website to provide operational information about ATOVS data received at Kiyose and Syowa Station.
  • As of August 2007, ATOVS data from nine stations are available at JMA.

KMA Activities for AP-RARS

Jae-Dong Jang & Jae-Myun Shim

Environmental & Meteorological Satellite Division

Korea Meteorological Administration

brief history
Brief History

The NOAA-16 ATOVS data had been received and processed for the purpose of test and research from 2001 to 2004

From 2004 to 2005, NOAA ATOVS data have been used for daily forecast and numerical weather prediction model operationally

It was discussed at APSDEU-6 that ATOVS data would be exchange in Asia-Pacific area

It was decided that Tokyo and beijing would be the intra-regional data centers

KMA finished to produce ATOVS BUFR data to be exchanged with JMA by August 2006

Routine exchange between Seoul and Tokyo is performed since 20 September 2006

current status at kma
Current Status at KMA

Exchange of ATOVS BUFR data between KMA and JMA


- Telecommunication : GTS between Seoul and Tokyo at a speed of 16kbps

- Data from Seoul to Tokyo : 1 HRPT station (Seoul)

- Data from Tokyo to Seoul : 4 HRPT station (1 Japan, 3 China)

Speeding up the production of ATOVS BUFR data by revising the data processing procedure  less than 25 minutes including receiving time

ATOVS data are currently used for Numerical Weather Prediction model as well as Weather Analysis.

SATEM (satellite temperature and humidity sounding) data achieved via GTS are used operationally for Global Spectral Model of Numerical Weather Prediction also.

Exchanged ATOVS data would be used for regional NWP model to improve weather forecast

future plan of kma
Future Plan of KMA

Department of Satellite in KMA will be moved to Korea Meteorological Satellite Center(KMSC), 70km South-east of Seoul by June 2008

A MetOp receiving station will be setup at KMSC by the end of 2007

- MetOp ATOVS Level 1c data will be produced by AAPP v6.4 in December 2007

Upgrade of current MESDAS-2 (including NOAA HRPT receiving system) in 2008.

propositions from kma
Propositions from KMA

Producing ATOVS data User’s guide for end users such asnumerical modelers

Developing Advance dissemination method for RARS data

- A-P HRPT data loads too much burden on the KMA-JMA GTS network

- ?Internet FTP, ?Fengyuncast

Sharing Fengyuncast dissemination plan

- Dissemination of AVHRR, MTSAT HRIT, FY-3A, Terra/Aqua, EARS data

satellite data assimilation plan of kma














○/ ●

MODIS Polar Wind




Geostationary Meteorological Satellite Radiance



GPS occultation



Satellite data assimilation plan of KMA

○ operation △ Developing; ● Possible but not received

Red: New data from EUMETSAT,Blue:Replace to EUMETSAT

bureau of meteorology
Bureau of Meteorology

Key Relevant Developments

  • Townsville L-band
  • L-band upgrade
developments abom
Developments - ABoM
  • BoM and CSIRO research partnership ‘ Centre for Australian Weather and Climate Research (CAWKR)’
  • BoM adopting UKMO NWP system
    • drivers:
      • 4D-Var
      • better use of more satellite data
usb ingestor migration plan
USB Ingestor Migration Plan
  • USB connected digital receiver
  • Linux-based software







Industrial PC

Internal and external documentation. Version control.

Sustainability into the future.

usb ingest migration plan
USB Ingest Migration Plan
  • Staged Rollout over the next 12 months
    • MTSAT-1R HiRID stops in March 2008
    • METOP is available now and our customers are demanding it
    • Additional short-term resources being brought in to complete work
a few discussion points plans
A few discussion points & plans
  • pacific data gap: Fiji, Hawaii, Guam, other sites
  • invite India to be involved in AP-RARS? (Fill data gap? Already run AAPP.)
  • formalise testing process for RARS data? (eg new sites, installation of new versions of bufr, AAPP etc.) Avoid sending bad data for NWP assimilation.
  • BoM to set up AP-RARS website 2007/8