Articles | Volume 16, issue 11
Biogeosciences, 16, 2247–2268, 2019
Biogeosciences, 16, 2247–2268, 2019

Research article 04 Jun 2019

Research article | 04 Jun 2019

Seasonality of archaeal lipid flux and GDGT-based thermometry in sinking particles of high-latitude oceans: Fram Strait (79° N) and Antarctic Polar Front (50° S)

Eunmi Park et al.

Data sets

Fractional abundances and concentrations of GDGT collected by sediment trap moored in two latitude regions of the Atlantic Ocean: in the eastern Fram Strait (FEVI16) and in the Antarctic Polar Front (PF3) Eunmi Park, Jens Hefter, Gerhard Fischer, Morten Hvitfeldt Iversen, Simon Ramondenc, Eva-Maria Nöthig, and Gesine Mollenhauer

Short summary
We analyzed GDGT-based proxy temperatures in the polar oceans. In the eastern Fram Strait (79° N), the nutrient distribution may determine the depth habit of Thaumarchaeota and thus the proxy temperature. In the Antarctic Polar Front (50° S), the contribution of Euryarchaeota or the nonlinear correlation between the proxy values and temperatures may cause the warm biases of the proxy temperatures relative to SSTs.
Final-revised paper