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Data from Polarstern cruise PS94 in the Arctic in 2015 with chief scientist Ursula Schauer. In order to explain geochemical cycles of Fe in the ocean, M. Rijkenberg, L. Gerringa and H. Slagter a.o. sampled filtered seawater using an ultra clean titanium CTD. In these samples on board measurements were executed: dissolved Fe by flow injection analysis and the characteristics of the dissolved organic Fe-binding organic ligands (totalL); characteristics being the concentration of these ligands and the conditional binding constant of the Fe-complex (K' expressed as its logarithm: logK). Moreover in order to relate the dissolved organic Fe-binding organic ligands to humic substances, fluorescence of dissolved organic matter was measured as well as humic substances using voltammetry.

Pertenece a

PANGAEA - Publishing Network for Geoscientific & Environmental Data  

Autor(es)

Gerringa, Loes J A -  Rijkenberg, Micha J A -  Slagter, Hans A - 

Id.: 71395966

Idioma: inglés  - 

Versión: 1.0

Estado: Final

Tipo:  text/tab-separated-values, 5480 data points - 

Palabras claveArctic Ocean -  ARK -  XXIX/3 -  Barents Sea -  Bottle number -  Calculated after Gerringa et al. (2014) -  Cast number -  Cathodic stripping voltammetry -  Metrohm 663 VA stand, control hardware (Metrohm Autolab II and IME 663) -  CTD/Rosette, ultra clean -  CTD -  UC -  Date/Time of event -  DEPTH, water -  Event label -  Fluorescence, colored dissolved organic matter -  GEOTRACES -  Global marine biogeochemical cycles of trace elements and their isotopes -  Humic substances -  Iron, dissolved -  Iron, dissolved, standard deviation -  Iron, inorganic, conditional stability constants -  Iron, inorganic, conditional stability constants, standard deviation -  Latitude of event -  Ligand concentration -  Ligand concentration, standard deviation -  Longitude of event -  Norwegian Sea -  Organic matter, colored dissolved at 254 nm -  Organic matter, colored dissolved at 300 nm -  Polarstern -  PS94 -  PS94/004 -  2 -  PS94/032 -  4 -  PS94/040 -  PS94/050 -  3 -  PS94/054 -  PS94/058 -  7 -  PS94/064 -  PS94/069 -  PS94/070 -  PS94/081 -  10 -  PS94/087 -  1 -  PS94/091 -  PS94/096 -  PS94/099 -  PS94/101 -  8 -  PS94/117 -  PS94/119 -  PS94/121 -  PS94/125 -  PS94/130 -  PS94/134 -  PS94/147 -  PS94/149 -  PS94/153 -  PS94/157 -  PS94/161 -  PS94/169 -  PS94/173 -  Quality flag -  Spectramax M2 multimode spectrophotometer (Molecular Devices) -  Station label - 

Cobertura:  MEDIAN LATITUDE: 82.742322 * MEDIAN LONGITUDE: 94.019932 * SOUTH-BOUND LATITUDE: 70.999330 * WEST-BOUND LONGITUDE: 21.192830 * NORTH-BOUND LATITUDE: 89.930170 * EAST-BOUND LONGITUDE: -116.679830 * DATE/TIME START: 2015-08-20T01:23:00 * DATE/TIME END: 2015-10-09T04:27:00 * MINIMUM DEPTH, water: 2.5 m * MAXIMUM DEPTH, water: 4230.3 m - 

Tipo de recurso: Dataset  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: CC-BY: Creative Commons Attribution 3.0 Unported

Formatos:  text/tab-separated-values, 5480 data points - 

Requerimientos técnicos:  Browser: Any - 

Relación: [References] Rijkenberg, Micha J A; Slagter, Hans A; Rutgers van der Loeff, Michiel M; van Ooijen, Jan C; Gerringa, Loes J A (2018): Dissolved Fe in the Deep and Upper Arctic Ocean With a Focus on Fe Limitation in the Nansen Basin. Frontiers in Marine Science, 5, https://doi.org/10.3389/fmars.2018.00088
[References] Slagter, Hans A; Reader, H E; Rijkenberg, Micha J A; Rutgers van der Loeff, Michiel M; de Baar, Hein J W; Gerringa, Loes J A (2017): Organic Fe speciation in the Eurasian Basins of the Arctic Ocean and its relation to terrestrial DOM. Marine Chemistry, 197, 11-25, https://doi.org/10.1016/j.marchem.2017.10.005
[References] Croot, Peter L; Johansson, M (2000): Determination of Iron Speciation by Cathodic Stripping Voltammetry in Seawater Using the Competing Ligand 2‐(2‐Thiazolylazo)‐p‐cresol (TAC). Electroanalysis, 12 (8), 565-576, https://doi.org/10.1002/(SICI)1521-4109(200005)12:8%3C565::AID-ELAN565%3E3.0.CO;2-L
[References] Gerringa, Loes J A; Rijkenberg, Micha J A; Thuróczy, Charles-Edouard; Maas, Leo R M (2014): A critical look at the calculation of the binding characteristics and concentration of iron complexing ligands in seawater with suggested improvements. Environmental Chemistry, 11(2), 114, https://doi.org/10.1071/EN13072
[References] Laglera, Luis M; Battaglia, Gianluca; Van den Berg, Johnnie; van den Berg, Constant M G (2007): Determination of humic substances in natural waters by cathodic stripping voltammetry of their complexes with iron. Analytica Chimica Acta, 599(1), 58-66, https://doi.org/10.1016/j.aca.2007.07.059

Fecha de contribución: 17-jun-2018

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