Les apports atmosphériques

Sources et devenir dans la colonne d'eau méditerranéenne

Translated title of the contribution: Atmospheric input: Source and fate in the Mediterranean column water

Cecile Guieu

    Research output: Contribution to journalArticle

    Abstract

    Aerosols are emitted in the atmosphere from contrasted sources. The reactivity of these particles and the fate in the water column of the elements attached to them are different according to these sources. As a fraction of the atmospheric input becomes bioavailable when entering the water column, the cycle of biota is linked to the atmospheric input. The results presented here emphasize on the necessity to consider the atmospheric input when studying a marine environment. This is particularly true in the case of a regional sea such as the Mediterranean Sea receiving important atmospheric inputs. In the Mediterranean Sea, the geochemical cycle of many elements are linked to the atmospheric input. For example, the Pb cycle is dominated by atmospheric inputs from anthropogenic sources. Iron and phosphorus cycles are influenced by atmospheric inputs from natural sources (Sahara). Saharan dust represents a source of nutrients directly available for the phytoplankton, able to stimulate the primary productivity at the event scale during oligotrophic period.

    Original languageFrench
    Pages (from-to)601-625
    Number of pages25
    JournalOceanis
    Volume26
    Issue number4
    StatePublished - Dec 1 2000

    Fingerprint

    water column
    phosphorus cycle
    geochemical cycle
    anthropogenic source
    biota
    marine environment
    phytoplankton
    aerosol
    dust
    iron
    productivity
    atmosphere
    nutrient
    Mediterranean Sea
    sea
    particle

    Keywords

    • Atmospheric input
    • Biogeochemical cycles
    • Mediterranean Sea
    • Nutrients
    • Sahara
    • Trace metals

    ASJC Scopus subject areas

    • Oceanography

    Cite this

    Les apports atmosphériques : Sources et devenir dans la colonne d'eau méditerranéenne. / Guieu, Cecile.

    In: Oceanis, Vol. 26, No. 4, 01.12.2000, p. 601-625.

    Research output: Contribution to journalArticle

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