Articles | Volume 22, issue 5
https://doi.org/10.5194/os-22-3403-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-22-3403-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Technical note
| 
23 Oct 2026
Technical note |
| 23 Oct 2026
| 23 Oct 2026
Furthest-first inversion for internal consistency adjustments in the biogeochemical data product GLODAPv3
Matthew P. Humphreys
CORRESPONDING AUTHOR
Department of Ocean Systems, NIOZ Royal Netherlands Institute for Sea Research, Texel, the Netherlands
Siv K. Lauvset
NORCE Research AS, Bjerknes Centre for Climate Research, Bergen, Norway
Nico Lange
NORCE Research AS, Bjerknes Centre for Climate Research, Bergen, Norway
Henry C. Bittig
Leibniz Institute for Baltic Sea Research Warnemünde (IOW), Rostock-Warnemünde, Germany
Brendan R. Carter
Cooperative Institute for Climate, Ocean, and Ecosystem Studies, University of Washington, Seattle, WA, USA
Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric Administration, Seattle, WA, USA
Mario Hoppema
Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Akihiko Murata
Research Institute for Global Change, Japan Agency for Marine–Earth Science and Technology, Yokosuka, Japan
Are Olsen
Geophysical Institute, University of Bergen and Bjerknes Centre for Climate Research, Bergen, Norway
Toste Tanhua
GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Adam Ulfsbo
Department of Marine Sciences, University of Gothenburg, Gothenburg, Sweden
Antón Velo
Instituto de Investigaciónes Mariñas, IIM – CSIC, Vigo, Spain
Ryan J. Woosley
Center for Sustainability Science & Strategy, Earth, Atmospheric & Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
Kumiko Azetsu-Scott
Department of Fisheries and Oceans, Bedford Institute of Oceanography, Dartmouth, NS, Canada
Jens D. Müller
Carbon to Sea Initiative, Washington, DC, USA
Climate and Environmental Physics, Physics Institute, University of Bern, Bern, Switzerland
Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland
Fiz F. Pérez
Instituto de Investigaciónes Mariñas, IIM – CSIC, Vigo, Spain
Data sets
Analysis and figures accompanying the GLODAPv3 methods paper (mvdh7/glodap3-methods) M. P. Humphreys and N. Lange https://doi.org/10.5281/zenodo.22975289
Short summary
The Global Ocean Data Analysis Project (GLODAP) collects oceanographic datasets from research cruises that are needed to study the marine carbon cycle. The datasets are quality controlled and adjusted where necessary to ensure consistency between cruises, and published as a global data product. Here, we present a new method for calculating the consistency adjustments called ‘furthest-first inversion’ which has been developed for the newest version of the data product.
The Global Ocean Data Analysis Project (GLODAP) collects oceanographic datasets from research...
