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The Argo project 21st Century in-situ Ocean Observing System M. Belbeoch, Argo Technical Coordinator with inputs from D. Roemmich, Argo Steering Team chair J. Gould, Argo Project Office Director S. Pouliquen, Argo Data Management Team co-chair and many other Argonauts.

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The Argo project 21st Century in-situ Ocean Observing System

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The argo project 21st century in situ ocean observing system

The Argo project21st Century in-situ Ocean Observing System

M. Belbeoch, Argo Technical Coordinator

with inputs fromD. Roemmich, Argo Steering Team chairJ. Gould, Argo Project Office DirectorS. Pouliquen, Argo Data Management Team co-chairand many other Argonauts

http://www.argo.ucsd.eduhttp://argo.jcommops.org


The argo project 21st century in situ ocean observing system

  • What is Argo ?

    • Maintain a global array of 3000 profiling floats by 2006 (3°x3°)

    • « 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

    • 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


The argo project 21st century in situ ocean observing system

Float Cycle


The argo project 21st century in situ ocean observing system

  • Float Technology: complex & “revolutionary”

    • 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 Deployment

    • Argos Communications

    • Optical, Acoustic, Dissolved Oxygen sensors …

    • Iridium

    • Technological Challenge: path to operational


The argo project 21st century in situ ocean observing system

  • Organization

    • GODAE/CLIVAR pilot-project

    • A major contribution to GOOS/GCOS

    • Endorsed by WMO and IOC

    • Argo Steering Team

    • Argo Project Office

    • Argo Information Centre

    • Argo Data Management Team


The argo project 21st century in situ ocean observing system

  • Data Management

    • 2 channels of distributions: GTS of WMO and Internet

    • National Data Centres feeding GTS and Global Data Centers:

      Coriolis Server (IFREMER, France)

      GODAE Server (FNMOC, USA)

    • Real-Time standard QC applied

    • Delayed-Mode standard QC being finalized

    • Regional Centres

    • Long Term Archival Centre (NODC, USA)


The argo project 21st century in situ ocean observing system

  • http://www.coriolis.eu.org

  • http://usgodae1.fnmoc.navy.mil/argo/argo.html

Data collection and certification

Prepare data for distribution

Data sent ashore in hours

Information about Argo

Long term archive

Here is the master copy of the data

Regional analyses

Argo Data System


The argo project 21st century in situ ocean observing system

  • Project Status:

  • 1237 Active Floats (40 %) as of 11/05/2003R/T Data Publication: ~96%

Deployments(target = 800/year)

2000: 1162001: 292

2002: 455

2003: 666

R/T status and [email protected]://argo.jcommops.org


The argo project 21st century in situ ocean observing system

  • Project Status: Network Age

  • Logistical challenge: deployment opportunities


The argo project 21st century in situ ocean observing system

  • Project Status:

  • 70 % of profiles > 1000 dbars

  • Argo = deep profiling


The argo project 21st century in situ ocean observing system

  • Project Status: Participating countries

+ Mozambique, Pacific Islands, Netherlands


The argo project 21st century in situ ocean observing system

  • International Issues:

  • EEZ access to complete the array

  • Float retrieval (1%): Argo label (~40%)


The argo project 21st century in situ ocean observing system

  • Challenge:

    • Sustain the funding long enough to complete the global array and demonstrate its value.


The argo project 21st century in situ ocean observing system

  • Challenge:

    • Sustain the funding long enough to complete the global array and demonstrate its value.

    • Continuous interactions between Research & Operational communities


The argo project 21st century in situ ocean observing system

  • Thank You

  • http://www.argo.ucsd.edu

  • http://argo.jcommops.org


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