A multi-decade record of high-quality f CO 2 data in version 3 of the Surface Ocean CO 2 Atlas (SOCAT)

Abstract. The Surface Ocean CO2 Atlas (SOCAT) is a synthesis of quality-controlled fCO2 (fugacity of carbon dioxide) values for the global surface oceans and coastal seas with regular updates. Version 3 of SOCAT has 14.7 million fCO2 values from 3646 data sets covering the years 1957 to 2014. This latest version has an additional 4.6 million fCO2 values relative to version 2 and extends the record from 2011 to 2014. Version 3 also significantly increases the data availability for 2005 to 2013. SOCAT has an average of approximately 1.2 million surface water fCO2 values per year for the years 2006 to 2012. Quality and documentation of the data has improved. A new feature is the data set quality control (QC) flag…

• NS
  National Science Foundation
• NA
  National Aeronautics and Space Administration
• UN
  United Nations Educational, Scientific and Cultural Organization
• UO
  University of Washington
• ES
  European Space Agency
• DF
  Department for Environment, Food and Rural Affairs, UK Government

  Award: NE/K00168X/1
• RS
  Royal Society
• SR
  Sight Research UK

  Awards: NE/N015932/1, NE/K00168X/1, NE/H017046/2, NE/K002473/1, pml010007, NE/H017186/1, NE/M005070/1, NE/H017046/1, NE/K002511/1, NE/K002058/1
• UO
  University of East Anglia
• EC
  European Commission

  Awards: 264879, FP7 264879, 633211, 283080
• RS
  Royal Society Te Apārangi
• SF
  Svenska Forskningsrådet Formas

  Award: Formas 2004-797
• BF
  Bundesministerium für Bildung und Forschung
• AW
  Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research
• V
  Vetenskapsrådet

  Award: 2004-4034
• UI
  Universitetet i Bergen
• NF
  Norges Forskningsråd

  Awards: 229752, SNACS, 229752, SNACS 229752
• NO
  National Oceanography Centre
• NO
  National Oceanic and Atmospheric Administration
• UG
  U.S. Geological Survey
• NE
  Natural Environment Research Council

  Awards: NE/H017046/1, NE/H017046/2, NE/K00168X/1, NE/K002511/1, NE/K002058/1, NE/H017186/1, NE/K00168X/1, NE/K002473/1, NE/H017046/1, NE/N015932/1, pml010007, NE/M005070/1
• SF
  Seventh Framework Programme

  Awards: 283080, 264879
• AC
  Antarctic Climate and Ecosystems Cooperative Research Centre
• BF
  Bjerknessenteret for klimaforskning, Universitetet i Bergen
• CP
  Climate Program Office
• OA
  Ocean Acidification Program
• OR
  Oak Ridge National Laboratory
• NA
  NOAA's Atlantic Oceanographic and Meteorological Laboratory
• NP
  NOAA Pacific Marine Environmental Laboratory