Presentacin de PowerPoint

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• REPEAT HYDROGRAPHIC SECTIONS
• On-going activities
• CLIVAR OVIDE French section.
• FICARAM Spanish section
• Planned activities
• MINAS Long-term time series station
• Group of CO2. Instituto de Investigaciones
  Marinas. Vigo, Spain

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• OVIDE
• A collaboration between CSIC-IIM and LPO
  (Laboratoire de Physique des Océans, France) in
  the frame of CLIVAR.
• Dates 2002 (11 June to 11 July).
  2004 (planned each 2
  years)
• Num. Stations 96
• Variables measured T, S, O2, CFCs, nitrate,
  phosphate, silicate, pH, alkalinity, pCO2.

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R/V Hesperides
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• FICARAM
• This section follows in the South Atlantic the
  WOCE line A17
• Dates 2001 (5 March-17 April) II
  2002 (4 March-9 April)
  IV 2003 (26 April-5 May) VI
  planned each 3 years
• Num. Stations 2001 (29), 2002 (19), 2003 (9)
• Variables measured T, S, O2, nitrate,
  phosphate, silicate, pH, alkalinity, pCO2.
• Gaps CFCs, CT

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FICARAM VI
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CARINA CO2 data in the Atlantic Ocean
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Internal Consistency of Carbonic System
pH measurements spectrophotometrically
(Clayton and Byrne,
1993) Alkalinity Potentiometric titrations with
HCl to a final pH 4.42 (Pérez Fraga 1987) To
check the precision replicates To check the
accuracy CRMs
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Uncertainty obtained by CRMs
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The average and STD of the differences
(calculated-measured) -44.6 .
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The average and STD of the differences
(calculated-measured) 0.3 3.7 µatm.
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Multidisciplinary Iberian North Atlantic Station
(MINAS) at 43ºN, 11ºW.
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• Core measurements
• -ADCP currents
• -vertical particle fluxes
• surface pCO2 (CARIOCA buoy)
• discrete water column measurements of oxygen,
  nutrients and carbon system variables

sampling frequency Monthly
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