Gledhill Martha mgledhill@geomar.de 0000-0003-3859-2112 GEOMAR - Helmholtz Centre for Ocean Research Kiel GEOMAR http://www.geomar.de https://ror.org/02h2x0161 Liu Fengjie fliu@geomar.de 0000-0002-2359-5022 Imperial College London IC http://www3.imperial.ac.uk/engineering https://ror.org/041kmwe10 2026 Present day iron speciation in the surface ocean, Version 2 dataset https://doi.pangaea.de/10.1594/PANGAEA.993556 2026-04-27T10:50:18 The main component of this data set comprises calculated inorganic iron concentrations (Fe' = sum of iron hydroxide species). Inorganic iron is the most bioavailable chemical form of Fe in the ocean. Concentrations of Fe' were calculated according to two models, which we refer to as the discrete ligand model and the continuous binding site model. The discrete ligand model, which is currently applied to calculate Fe speciation in global biogeochemical models, combines dissolved Fe concentrations, conditional stability constants and ligand concentrations to obtain inorganic iron, whilst the continuous distribution model uses the NICA-Donnan model to obtain Fe'. Gledhill Martha mgledhill@geomar.de 0000-0003-3859-2112 Liu Fengjie fliu@geomar.de 0000-0002-2359-5022 Zhang Qiong Browning Thomas J tbrowning@geomar.de 0000-0002-2864-6087 Twining Ben S Buck Kristen N Kwiatkowski Lester lkwiatkowski@carnegiescience.edu 0000-0002-6769-5957 Bowler Chris cbowler@biologie.ens.fr 0000-0003-3835-6187 Achterberg Eric Pieter eachterberg@geomar.de 2024 Present day and end of century (2100) iron speciation in the surface ocean dataset https://doi.org/10.1594/PANGAEA.966487 GL807/2-1 Development of a consistent thermodynamic model of trace element - organic matter interactions in the Ocean European Commission EC https://commission.europa.eu/index_en https://doi.org/10.13039/501100000780 891418 Marie Curie: Iron speciation in the microenvironment surrounding phytoplankton cells and the consequences for Fe bioavailability Natural Environment Research Council NERC http://www.nerc.ac.uk/ https://doi.org/10.13039/501100000270 NE/V01451X/1 Controls on iron availability to marine phytoplankton https://gtr.ukri.org/projects?ref=NE/V01451X/1 8 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Description Description description Gledhill Martha mgledhill@geomar.de 0000-0003-3859-2112 Description Binary Object Binary Gledhill Martha mgledhill@geomar.de 0000-0003-3859-2112 Binary Binary Object (File Size) Binary (Size) Bytes Gledhill Martha mgledhill@geomar.de 0000-0003-3859-2112 Binary (Size) [Bytes] CurationLevelB Basic curation https://wiki.pangaea.de/wiki/Curation_levels geomar author10110 author39249 author58177 author59042 author62771 author63740 author72095 author74099 author94448 award2947 award2948 curlevel20 funder1797 funder20653 inst20019 inst20147 license21 param146419 param7055 pi63740 project4912 refds966487 term242 term40710