Catalogus

Zoeken

Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.

Boekenmand

Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).

RSS

Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.

log in

Publicaties | Kaarten

nieuwe zoekopdracht

[ meld een fout in dit record ]

mandje (0): toevoegen | toon

---

Iron and mixing affect biological carbon uptake in SOIREE and EisenEx, two Southern Ocean iron fertilisation experiments Bakker, D.C.E.; Bozec, Y.; Nightingale, P.D.; Goldson, L.; Messias, M.-J.; de Baar, H.J.W.; Liddicoat, M.; Skjelvan, I.; Strass, V.; Watson, A.J. (2005). Iron and mixing affect biological carbon uptake in SOIREE and EisenEx, two Southern Ocean iron fertilisation experiments, in: Bozec, Y. Process studies of the biological pump of carbon dioxide in the North Sea and Southern Ocean. pp. 161-188 In: Bozec, Y. (2005). Process studies of the biological pump of carbon dioxide in the North Sea and Southern Ocean. PhD Thesis. Rijksuniversiteit Groningen: Groningen. ISBN 90-367-2355-8. 215 pp. Is gerelateerd aan: Bakker, D.C.E.; Bozec, Y.; Nightingale, P.D.; Goldson, L.; Messias, M.-J.; de Baar, H.J.W.; Liddicoat, M.; Skjelvan, I.; Strass, V.; Watson, A.J. (2005). Iron and mixing affect biological carbon uptake in SOIREE and EisenEx, two Southern Ocean iron fertilisation experiments. Deep-Sea Res. A 52(6): 1001-1019. https://dx.doi.org/10.1016/j.dsr.2004.11.015, meer

---

Beschikbaar in	Auteurs
VLIZ [ aanvragen ]

---

Trefwoorden

Chemical compounds > Carbon compounds > Atmospheric gases > Carbon dioxide Chemical elements > Metals > Transition elements > Heavy metals > Iron Marien/Kust

---

Auteurs		Top
Bakker, D.C.E. Bozec, Y. Nightingale, P.D. Goldson, L.	Messias, M.-J. de Baar, H.J.W. Liddicoat, M.	Skjelvan, I. Strass, V. Watson, A.J.

---

Abstract

This study explores the changes in the surface water fugacity of carbon dioxide (fCO2) and biological carbon uptake in two Southern Ocean iron fertilisation experiments with different hydrographic regimes. The Southern Ocean Iron Release Experiment (SOIREE) experiment was carried out south of the Antarctic Polar Front (APF) at 61°S, 141°E in February 1999 in a stable hydrographic setting. The EisenEx experiment was conducted in a cyclonic eddy north of the APF at 48°S, 21°E in November 2000 and was characterised by a rapid succession of low to storm-force wind speeds and dynamic hydrographic conditions. The iron additions promoted algal blooms in both studies. They alleviated algal iron limitation during the 13-day SOIREE experiment and probably during the first 12 days of EisenEx. The fCO2 in surface water decreased at a constant rate of 3.8 µatm day-1 from 4 to 5 days onwards in SOIREE. The fCO2 reduction was 35 µatm after 13 days. The evolution of surface water fCO2 in the iron-enriched waters (or ‘patch’) displayed a saw tooth pattern in EisenEx, in response to algal carbon uptake in calm conditions and deep mixing and horizontal dispersion during storms. The maximum fCO2 reduction was 18–20 µatm after 12 and 21 days with lower values in between. The iron-enriched waters in EisenEx absorbed four times more atmospheric CO2 than in SOIREE between 5 and 12 days, as a result of stronger winds. The total biological uptake of inorganic carbon across the patch was 1389 ton C (±10%) in SOIREE and 1433 ton C (±27%) in EisenEx after 12 days (1 ton=106 g). This similarity probably reflects the comparable size of the iron additions, as well as algal growth at a similar near-maximum growth rate in these regions. The findings imply that the different mixing regimes had less effect on the overall biological carbon uptake across the iron-enriched waters than suggested by the evolution of fCO2 in surface water.

---

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid

Top | Auteurs