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Springer
In:
EPIC3Earth System Science: Bridging the Gaps between Disciplines. Perspectives from a Multi-disciplinary Helmholtz Graduate Research School, Earth System Science: Bridging the Gaps between Disciplines. Perspectives from a Multi-disciplinary Helmholtz Graduate Research School, Heidleberg, Springer, 4 p., pp. 38-41, ISBN: 978-3-642-32234-1
Publication Date:
2023-06-21
Description:
Growth of phytoplankton in the Southern Ocean (SO) is largely limited by
insufficient concentrations of the micronutrient iron, so that despite the large
macronutrient reservoir, the SO is considered a High Nutrient Low Chlorophyll
region. Therefore, phytoplankton growth is enhanced where exogenous iron is
introduced to the system, for example downstream from islands. These confined
regions sustain very rich ecosystems and are hot spots for atmospheric carbon
dioxide drawdown. In this study, a combination of satellite derived measurements
and model simulations are used to investigate the biological and physical
environmental disturbances of the island of South Georgia (37°W, 54°S), which is
located in the southwestern part of the Atlantic sector of the SO. We show not
only that the island shelf is an important source of dissolved iron to the system,
but also that the characteristic surface circulation patterns found downstream of
the island play an important role in maintaining the shape and distribution of the
developing phytoplankton bloom.
Repository Name:
EPIC Alfred Wegener Institut
Type:
Inbook
,
peerRev
Format:
application/pdf
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