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ARGO Float

ARGO float

The National Institute of Meteorological Sciences ARGO (NIMS-ARGO) program is an international cooperation program for global ocean observation performed by the World Meteorological Organization/Intergovernmental Oceanographic Commission of UNESCO (WMO/IOC). The objectives of this project is to do near-real time monitoring the upper ocean from monthly to decadal scale variation, and to describe the ocean climate change quantitatively.

The Argo floats carry out profiling of the water temperature, salinity, Chlorophyll, and Nitrogen for the physical and biogeochemical study of ocean. This program started from early 2000 and 16 countries and several institutes and university in the world are participating in deploying more 800 floats every year.

As an international global ocean observation program, it is also connected with Global Climate Observing System/Global Ocean Observing System (GCOS/GOOS), Climate Variability and Predictability program (CLIVAR), and Global Ocean Data Assimilation Experiment (GODAE).

ARGO float Observation systems

ARGO I Video ARGO II Video
(soruce: ARGO Program, http://argo.ucsd.edu)

ARGO float is designed to go down to specified depth and drift for determined time along geostrophic current.
Then it observes the temperature and salinity of the layers as it rises up to the surface layer by internal dynamics, and transmits the recorded data to ARGOS satellite.

The observed data will be sent to ARGOS center and processed by quality control. Then the final data will be distributed to the ARGO participating country via GTS, FTP and e-mail.

ARGO float Subsystem

Subsystem

  • Hydraulics
    control buoyancy adjustment of ARGO float.
  • Microprocessors
    system control and temporary recording of observed data.
  • Data transmission system
    control communication with satellite.

Principle of driving

  • Argo float rises up or goes down by simply controlling the buoyancy

Specifications

  • Dimensions 23.6 cm diameter, 24 cm long (not incl. 70 cm antenna)
  • Mass 26 kg
  • Operating depth 2000 m maximum
  • Communication ARGOS satellite (401 MHz)

ARGOS satellite

  • ARGOS satellite (NOAA 11, 12, 14, 15, 16, 17 of USA), Japanese ADEOS-II and Brazilian SCD are used for data transmission of ARGO.



Related sites

Global Argo Centers and Programs

Coriolis GDAC

http://www.coriolis.eu.org/Observing-the-Ocean/ARGO

US GODAE GDAC

https://nrlgodae1.nrlmry.navy.mil/argo/argo.html

Argo Information Centre

http://argo.jcommops.org

Argo Data Management Team

http://www.argodatamgt.org

Biogeochemical Argo

http://biogeochemical-argo.org/index.php

Argo Portal

http://www.argo.net



국가별 웹사이트

호주(CSIRO/BoM)

http://imos.org.au/facilities/argofloats

유로(EuroArgo)

http://www.euro-argo.eu

프랑스(Coriolis)

http://www.coriolis.eu.org/Observing-the-Ocean/ARGO

독일(German Argo)

http://www.german-argo.de

인도(INCOIS)

http://www.incois.gov.in/Incois/argo/argo_home.jsp

일본(JAMSTEC)

http://www.jamstec.go.jp/J-ARGO/index_e.html

영국(UK BODC)

http://www.ukargo.net/

미국(AOML)

http://www.aoml.noaa.gov/phod/argo/index.php



Argo Regional Centers

Pacific Argo Regional Center (PARC)

http://apdrc.soest.hawaii.edu/argo

Indian Argo Regional Center (IARC)

https://incois.gov.in/argo/ARDCenter.jsp

North Atlantic Argo Regional Center (NA-ARC)

http://www.argodatamgt.org/Argo-regional-Centers/North-Atlantic-ARC

South Atlantic Argo Regional Center (SA-ARC)

http://www.aoml.noaa.gov/phod/sardac/index.php

Southern Ocean Argo Regional Center (SO-ARC)

http://www.ukargo.net/southern_ocean_argo_regional_centre

MedArgo Regional Center (MedArgo ARC)

http://nettuno.ogs.trieste.it/sire/medargo



International Programs related to Argo

Global Ocean Observing System (GOOS)

http://www.goosocean.org/

Global Climate Observing System (GCOS)

http://www.wmo.int/pages/prog/gcos/index.php

Aquarius Sea Surface Salinity Satellite

https://aquarius.nasa.gov/

Jason Satellite Altimeter

http://sealevel.jpl.nasa.gov/missions/

TOPEX/Poseidon Satellite Altimeter

http://sealevel.jpl.nasa.gov/missions/topex

Ocean Observations Panel for Climate (OOPC)

http://goosocean.org/index.php?option=com_content&view=article&id=124&Itemid=281

Global Ocean Data Assimilation Experiment (GODAE)

http://www.godae.org/

GODAE OceanView

https://www.godae-oceanview.org/

GO-SHIP

http://www.go-ship.org/

Climate Variability and Predictability Experiment (CLIVAR)

http://www.clivar.org

World Climate Research Programme (WCRP)

http://www.wcrp-climate.org/