The Modern Ocean Sediment Archive and Inventory of Carbon (MOSAIC): version 2.0
<p>Marine sediments play a crucial role in the global carbon cycle by acting as the ultimate sink of both terrestrial and marine organic carbon. To understand the spatiotemporal variability in the content, sources, and dynamics of organic carbon in marine sediments, a curated and harmonized da...
Main Authors: | , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
Copernicus Publications
2023-09-01
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Series: | Earth System Science Data |
Online Access: | https://essd.copernicus.org/articles/15/4105/2023/essd-15-4105-2023.pdf |
Summary: | <p>Marine sediments play a crucial role in the global carbon
cycle by acting as the ultimate sink of both terrestrial and marine organic
carbon. To understand the spatiotemporal variability in the content, sources,
and dynamics of organic carbon in marine sediments, a curated and harmonized
database of organic carbon and associated parameters is needed, which has
prompted the development of the Modern Ocean Sediment Archive and Inventory
of Carbon (MOSAIC) database (<span class="uri">http://mosaic.ethz.ch/</span>, last access: 26 July 2023; <a href="https://doi.org/10.5281/zenodo.8322094">https://doi.org/10.5281/zenodo.8322094</a>, Paradis, 2023; <a href="https://doi.org/10.5168/mosaic019.1">https://doi.org/10.5168/mosaic019.1</a>, Van der Voort et al., 2019). MOSAIC version 2.0 has expanded the
spatiotemporal coverage of the original database by <span class="inline-formula">>400</span> %
and now holds data from more than 21 000 individual sediment cores from
different continental margins on a global scale. Additional variables have
also been incorporated into MOSAIC v.2.0 that are crucial to interpret the
quantity, origin, and age of organic carbon in marine sediments globally.
Sedimentological parameters (e.g. grain size fractions and mineral surface
area) help understand the effect of hydrodynamic sorting and mineral
protection on the distribution of organic carbon, while molecular biomarker
signatures (e.g. lignin phenols, fatty acids, and alkanes) can help constrain
the specific origin of organic matter. MOSAIC v.2.0 also stores data on
specific sediment and molecular fractions, which provide further insight
into the processes that affect the degradation and ageing of organic carbon
in marine sediments. Data included within MOSAIC are continuously expanding,
and version control will allow users to benefit from updated versions while
ensuring reproducibility of their findings.</p> |
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ISSN: | 1866-3508 1866-3516 |