Activities%20of%20the%20South%20Atlantic%20Argo%20Regional%20Center%20(SA%20ARC)

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Activities of the South Atlantic Argo Regional
Center (SA ARC)

• Silvia Garzoli, Bob Molinari, Claudia Schmid
  (NOAA/AOML) , Huiqin Yang (CIMAS/UM)

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Deployments over the last year
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New developments
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Donation Program
To fill up gaps in the South Atlantic using ships
from Brazil and Argentina.
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Collaboration programs(Through SA ARC)
with the University of Cape Town, South Africa to
deploy floats from the RV Agulhas.
With the Argentine SHN to deploy floats from the
RV ARA Puerto Deseado
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Logistics and floats deployments
AOML to centralize and post the information for
the whole Atlantic.

• Donation program
• Agreements with Argentina, Brazil, South Africa,
  Ghana.

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Identify problems with the data quality
Comparison with nearby profiles (in space and
time) Comparison with climatology Report
potential problems to float PI who will correct
them if possible.
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Summary plot of temperature comparisons
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Summary plot of salinity comparisons
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Comparison of Argo 400-m T with climatology (not
shown) and buddies
Targo vs. T buddy
Depth 400 m, Years 1997-2004
Targo vs. T buddy - Outliers

• determine the robustness of the climatology
• evaluate the performance of the floats

Depth 400 m, Years 1997-2004
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Comparison of Argo 400-m S with climatology (not
shown) and buddies
Sargo vs. Sbuddy
Depth 400 m, Years 1997-2004
Sargo vs. Sbuddy - Outliers
Depth 400 m, Years 1997-2004
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Summary

• T/S deviates from climatology in high latitude
  South Atlantic (most likely problems with
  climatology)
• S deviates from climatology in western tropical
  Atlantic
• Buddy comparison help identify problematic floats

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Training and Outreach
Ghana Workshop Welcome!
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Next steps?

• Coordinate the activities needed to develop the
  Reference Data Sets. We propose to add an ARC
  component to the next Data Management or delayed
  QC
• meetings.
• May 2007 South Atlantic International MOC
  meeting in Argentina. We propose to add a
  section on SA ARC to evaluate the progress and to
  use the opportunity to expand our deployment
  opportunities in the region.

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What have we accomplished?
SA ARC (http//www.aoml.noaa.gov/phod/sardac/)
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SARDAC Products

• Mapped mixed layer properties
• Seasonal climatology
• Upper ocean temperature
• Satellite altimetry and geostrophic currents

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Mixed layer properties
Heat Storage rate
Temperature
http//www.aoml.noaa.gov/phod/sardac/products/hs/a
nimation_hsr.html
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Mapped mixed layer properties
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Monthly climatology
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Seasonal scatter plots
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Seasonal climatology
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Gridded fields of upper ocean temperature in the
Atlantic
Upper ocean temperature
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Upper ocean temperature
Gridded fields of upper ocean temperature in the
Atlantic
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Quality controlled drifting buoy observations
Nov. 1989-present 887 drifters in the South
Atlantic (826 with drogues to measure mixed-layer
currents) 688 drifter-years of data!
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Animations of monthly mean currents and
SST(time-mean field shown here)
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Access CoastWatch Gloabal Satellite Data and
Products.
Joaquin Trinanes and Gustavo Goni
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Satellite altimetry and geostrophic currents
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SST Anomalies View 5-day (pentad) SST anomaly
maps for the Caribbean Region. Spatial resolution
is 9.28 km.
Atlantic SST maps Display and retrieve daily
and pentad Sea Surface Temperature maps for the
Atlantic Ocean. These maps are created using data
from the POES satellites.
Near Real Time Wind Data Display and retrieve
surface wind data from a variety of sensors
(QuikSCAT, SSMI, TMI, ERS-2, TOPEX, Jason-1, GFO
and Drifters).
Upper Ocean Heat Content Upper ocean thermal
structure derived from the Sea Surface Height and
Sea Surface Temperature fields. Updated daily.
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SA-ARC web page at AOML
http//www.aoml.noaa.gov/phod/ARGO/HomePage