Volcanic ash as fertiliser for the surface ocean.

Langmann, B., Zaksek, K., Hort, M. and Duggen, Svend (2010) Volcanic ash as fertiliser for the surface ocean. Atmospheric Chemistry and Physics, 10 (8). pp. 3891-3899. DOI 10.5194/acp-10-3891-2010.

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Abstract

Iron is a key limiting micro-nutrient for marine primary productivity. It can be supplied to the ocean by atmospheric dust deposition. Volcanic ash deposition into the ocean represents another external and so far largely neglected source of iron. This study demonstrates strong evidence for natural fertilisation in the iron-limited oceanic area of the NE Pacific, induced by volcanic ash from the eruption of Kasatochi volcano in August 2008. Atmospheric and oceanic conditions were favourable to generate a massive phytoplankton bloom in the NE Pacific Ocean which for the first time strongly suggests a connection between oceanic iron-fertilisation and volcanic ash supply.

Document Type: Article
Keywords: Volcanology; Oceanography
Research affiliation: OceanRep > SFB 574 > C5
OceanRep > GEOMAR > FB4 Dynamics of the Ocean Floor > FB4-MUHS Magmatic and Hydrothermal Systems
OceanRep > SFB 574
Refereed: Yes
Open Access Journal?: Yes
DOI etc.: 10.5194/acp-10-3891-2010
ISSN: 1680-7316
Contribution Number:
ProjectNumber
SFB 574170
Date Deposited: 11 May 2010 10:35
Last Modified: 06 Jul 2012 14:57
URI: http://oceanrep.geomar.de/id/eprint/1553

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