Argo by cuiliqing

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									         The Argo Project
21st Century in-situ Ocean Observing System
                to update …




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What is Argo ?

      A new way to collect data from the ocean using robot floats
     « Take the pulse » of the Ocean’s upper layer in real-time
      Complement to satellite and other in-situ observing systems
     Access to data is free and unrestricted
     Target- a 3° x 3° global array ( ~3000 floats)

     Benefits:
       •Improve Ocean and Climate forecasting
       •Understand ocean-atmosphere interactions
       •Predict seasonal to decadal climate variability

        Wide range of applications for high-quality
        global ocean analyses is anticipated
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Standard Float Cycle




       Drifting Depth: 1000 m

      Profiling Depth: 2000 m

      10 Days Cycles            3
Float Technology: complex & “revolutionary”

     Float designs APEX, PROVOR, SOLO,
     NINJA, COPEX, NEMO

      150-200 cycles (4-5 years lifetime)
      T/S Profiles down to 2000 dbars
      CTD stable: 1 dbar, 0.001 °C, 0.01 Psu
     Air/Ship Deployments
     Argos Communications

     Optical, Acoustic, Dissolved Oxygen sensors …
     Iridium communications
     Next generation profiling floats (IFREMER, JAMSTEC)


     Technological Challenge                           4
Organization


          National programmes contributing to :

          GODAE/CLIVAR pilot-project
          A major contribution to GOOS/GCOS
          Endorsed by WMO and IOC

          Argo Steering Team
          Argo Data Management Team

          Argo Project Office:
                Director (J. Gould, CSIRO, Hobart, Australia)
                Coordinator (M.Belbeoch, Argo Information Centre -
          JCOMMOPS, Toulouse, France)

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Data Management

    2 channels of real time distribution:
          • GTS of WMO - mostly to operational users
          • Internet from 2 Global Data Centres (GDACs)
                            - available to all

    National Data Centres feed the GTS and 2 GDACs :
                 Coriolis Server (IFREMER, France)
               GODAE Server (FNMOC, USA)

    Standard Real-Time QC applied
    Delayed-Mode QC being finalized (data available from
    GDACs after delay of 6-12 months)

    Regional Centres being established
    Long Term Archival Centre established @ NODC, USA6
Argo => Operational Data Distribution

- 9 established DACs feed GDACs
- 98% of data delivered in real time to GTS and
GDACs (84% of these within 24h - source MEDS)
2000   2001   2002   2003   2004      DAC /        GTS     GDACs
                                   Distribution
18%    45%    53%    72%    84 %    Channel
                                   Coriolis (FR)    x        x

                                   CSIRO (AU)       x        x

                                   MEDS (CA)        x        x

                                    JMA (JP)        x        x

                                   AOML (USA)      (SAI)     x

                                   BODC (UK)       CLS       x

                                   METRI/KMA       JMA       x
                                    (KOREA)
                                     INCOIS        CLS       x
                                     (INDIA)
                                     NMDIS         CLS       x     7
                                    (CHINA)
   Argo Data System

 http://www.coriolis.eu.org
http://usgodae.org/argo/argo.html




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The Argo Information Centre:

International Coordination

Clearing House, Focal Point

Integrated within JCOMMOPS


Autonomous Information System
(Database, GIS, Charts)

Real Time Web based
Monitoring System

Metadata Centre



                   http://argo.jcommops.org   9
               Argo Status




              Yearly Deployments
2000   2001          2002          2003   2004

116    292            455          667    838


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All Argo deployment locations (2004 red)
Target deployment rate reached in 2004 (~800/year)
Argo pilot-project feasibility demonstrated
Southern Ocean still a challenge for Argo …
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Young network (50% < 1year) - early floats had short life




            < 1 year    799 (48,9%)
            1-2 years   446 (27,3%)
            2-3 years   311 (19,0%)
            3-4 years   36 (2,2%)
            > 4 years   43 (2,6%)

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Fleet of US, French, German and Japanese manufactured floats




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                 Argo
                 Profiling
                 Depths




   (Deepest
  profiles at
high latitude)


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     Argo
=> International
    Project




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   Argo is supported by:
ARGENTINA-AUSTRALIA- CANADA- CHILE- CHINA- COOK
ISLANDS- COSTA RICA- DENMARK- EUROPEAN UNION- FIJI-
FRANCE- GERMANY- ICELAND- INDIA- INDONESIA- IRELAND-
JAPAN- KIRIBATI- KOREA (REPUBLIC OF)- MARSHALL ISLANDS-
MAURITIUS- MEXICO- MICRONESIA, FEDERATED STATES OF-
MOZAMBIQUE- NETHERLANDS- NEW CALEDONIA- NEW
ZEALAND- NIUE- NORWAY- PAPUA NEW GUINEA- RUSSIAN
FEDERATION- SAMOA- SOLOMON ISLANDS- SOUTH AFRICA-
SPAIN- TOKELAU- TONGA- TUVALU- UNITED KINGDOM- UNITED
STATES- VANUATU-




        EEZ access to complete the array           16
 Float Retrieval Procedure


1% expected to be retrieved

50% of the fleet have labels
Target is to label all

 Countries responsible for
 retrieval of floats when
 found




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Argo Initiatives in South America

           Float Donations: to Chile, Costa Rica and Mexico
           value $15,000 /unit + Communications :
                  - Shipping paid by recipient
                  - Deployment location choosen using regional expertise
                    but adhering to Argo standards

            Invitation to support Argo sent by
           intergovernmental channels (IOC)
           Visit of TC (seminars, training on float technology)

           Contacts needed for the Atlantic side

           Goal: Finalize these initiatives at a South American
           Argo Workshop (Contacts needed)
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Courtesy H. Freeland, IOS Canada
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Argo = Dominant source of information in the SO




              Courtesy H. Freeland, IOS Canada
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                Examples of Argo data use

                                                      With Argo              Non Argo

                                               UK Met Office assimilating salinity in
 Forecasting currents around Australia                    global model
David Griffin , Bluelink project, Australia




           Environmental Impact assessment         Monitoring monsoon impacts
          Gulf of Alaska (H Freeland Canada)             (Ravichandran)

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                  Conclusion:

Almost 1700 operational floats
Free data distribution and sharing
Target deployment rate reached in 2004: 838 floats
Network is young: (50% fleet < 1 year old)
Deployment failure rate decreased from 8.6% (2001) to
1.9% (2004)
 90% of the fleet is profiling deeper than 1000m
Argo is truly global and international (19 countries, 50
regional initiatives, more to come)




            Argo is doing well !
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              Challenge:

 Sustain the funding long enough to
complete the global array …

 … and demonstrate its value.

=> Continuous interactions between Research
& Operational communities



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   Thank you …




                            Argo Globe,
                            Courtesy H. Freeland, IOS Canada




Argo Portal: www.argo.net




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