Rüdiger Röttgers

TL;DR: Iron-fertilized diatom blooms may sequester carbon for timescales of centuries in ocean bottom water and for longer in the sediments.

TL;DR: In this paper, the authors examined several approaches for estimating the surface concentration of particulate organic carbon, POC, from optical measurements of spectral remote-sensing reflectance, Rrs(λ), using field data collected in tropical and subtropical waters of the eastern South Pacific and eastern Atlantic Oceans.

TL;DR: It is suggested that large-scale iron fertilization of the silicate-rich Southern Ocean will not change silicon sequestration but will add carbon to the sinking silica flux, implying that thick-shelled, hence grazer-protected, diatom species evolved in response to heavy copepod grazing pressure in the presence of an abundant silicate supply.

TL;DR: In this article, the authors adapted the technique of Differential Optical Absorption Spectroscopy (DOAS) for the retrieval of the absorption and biomass of two major phytoplankton groups (PhytoDOAS).

TL;DR: In this article, the authors measured the absorption spectra and induced fluorescence excitation emission matrices of colored dissolved organic matter in water samples collected along the Atlantic Meridional Transect in different biogeographic provinces of the Atlantic Ocean from October to November 2010.