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The Global Ocean Data Analysis Project version 2 (GLODAPv2) – an internally consistent data product for the world ocean
Olsen, A.; Key, R.M.; van Heuven, S.; Lauvset, S.K.; Velo, A.; Lin, X.; Schirnick, C.; Kozyr, A.; Tanhua, T.; Hoppema, M.; Jutterström, S.; Steinfeldt, R.; Jeansson, E.; Ishii, M.; Pérez, F.F.; Suzuki, T. (2016). The Global Ocean Data Analysis Project version 2 (GLODAPv2) – an internally consistent data product for the world ocean. ESSD 8: 297–323. dx.doi.org/10.5194/essd-8-297-2016
In: Earth System Science Data. Copernicus: Göttingen. ISSN 1866-3508, more
Peer reviewed article  

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Authors  Top 
  • Olsen, A.
  • Key, R.M.
  • van Heuven, S., more
  • Lauvset, S.K.
  • Velo, A.
  • Lin, X.
  • Schirnick, C.
  • Kozyr, A.
  • Tanhua, T.
  • Hoppema, M.
  • Jutterström, S.
  • Steinfeldt, R.
  • Jeansson, E.
  • Ishii, M.
  • Pérez, F.F.
  • Suzuki, T.

Abstract
    Version 2 of the Global Ocean Data Analysis Project (GLODAPv2) data product is composed ofdata from 724 scientific cruises covering the global ocean. It includes data assembled during the previous effortsGLODAPv1.1 (Global Ocean Data Analysis Project version 1.1) in 2004, CARINA (CARbon IN the Atlantic)in 2009/2010, and PACIFICA (PACIFic ocean Interior CArbon) in 2013, as well as data from an additional 168cruises. Data for 12 core variables (salinity, oxygen, nitrate, silicate, phosphate, dissolved inorganic carbon, totalalkalinity, pH, CFC-11, CFC-12, CFC-113, and CCl4) have been subjected to extensive quality control, includingsystematic evaluation of bias. The data are available in two formats: (i) as submitted but updated to WOCEexchange format and (ii) as a merged and internally consistent data product. In the latter, adjustments have beenapplied to remove significant biases, respecting occurrences of any known or likely time trends or variations.Adjustments applied by previous efforts were re-evaluated. Hence, GLODAPv2 is not a simple merging ofprevious products with some new data added but a unique, internally consistent data product. This compiled andadjusted data product is believed to be consistent to better than 0.005 in salinity, 1% in oxygen, 2% in nitrate,2% in silicate, 2% in phosphate, 4 μmol kg?1 in dissolved inorganic carbon, 6 μmol kg?1 in total alkalinity,0.005 in pH, and 5% for the halogenated transient tracers.

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