GEOTRACES: Accelerating research on the marine biogeochemical cycles of trace elements and their isotopes

RF Anderson - Annual Review of Marine Science, 2020 - annualreviews.org
The biogeochemical cycles of trace elements and their isotopes (TEIs) constitute an active
area of oceanographic research due to their role as essential nutrients for marine organisms …

Metrics that matter for assessing the ocean biological carbon pump

KO Buesseler, PW Boyd, EE Black… - Proceedings of the …, 2020 - pnas.org
The biological carbon pump (BCP) comprises wide-ranging processes that set carbon
supply, consumption, and storage in the oceans' interior. It is becoming increasingly evident …

Modelling Kara Sea phytoplankton primary production: Development and skill assessment of regional algorithms

AB Demidov, OV Kopelevich, SA Mosharov… - Journal of Sea …, 2017 - Elsevier
Abstract Empirical region-specific (RSM), depth-integrated (DIM) and depth-resolved (DRM)
primary production models are developed based on data from the Kara Sea during the …

Biogeochemical‐argo floats reveal stark latitudinal gradient in the Southern Ocean deep carbon flux driven by phytoplankton community composition

L Terrats, H Claustre, N Briggs, A Poteau… - Global …, 2023 - Wiley Online Library
The gravitational sinking of particles in the mesopelagic layer (∼ 200–1,000 m) transfers to
the deep ocean a part of atmospheric carbon fixed by phytoplankton. This process, called …

Southern Ocean carbon export efficiency in relation to temperature and primary productivity

G Fan, Z Han, W Ma, S Chen, F Chai, MR Mazloff… - Scientific Reports, 2020 - nature.com
Satellite remote sensing and numerical models are widely used to estimate large-scale
variations in ocean carbon export, but the relationship between export efficiency (e-ratio) of …

Carbon export fluxes and export efficiency in the central Arctic during the record sea‐ice minimum in 2012: a joint 234Th/238U and 210Po/210Pb study

M Roca‐Martí, V Puigcorbé… - Journal of …, 2016 - Wiley Online Library
The Arctic sea‐ice extent reached a record minimum in September 2012. Sea‐ice decline
increases the absorption of solar energy in the Arctic Ocean, affecting primary production …

High particulate organic carbon export during the decline of a vast diatom bloom in the Atlantic sector of the Southern Ocean

M Roca-Martí, V Puigcorbé, MH Iversen… - Deep Sea Research …, 2017 - Elsevier
Carbon fixation by phytoplankton plays a key role in the uptake of atmospheric CO 2 in the
Southern Ocean. Yet, it still remains unclear how efficiently the particulate organic carbon …

Global database of ratios of particulate organic carbon to thorium-234 in the ocean: improving estimates of the biological carbon pump

V Puigcorbé, P Masqué… - Earth System Science …, 2020 - essd.copernicus.org
The ocean's biological carbon pump (BCP) plays a major role in the global carbon cycle. A
fraction of the photosynthetically fixed organic carbon produced in surface waters is …

[HTML][HTML] Revisiting five decades of Th data: a comprehensive global oceanic compilation

E Ceballos-Romero, KO Buesseler… - Earth System …, 2022 - essd.copernicus.org
We present here a global oceanic compilation of 234 Th measurements that collects results
from researchers and laboratories over a period exceeding 50 years. The origin of the 234 …

Quantifying 210Po/210Pb Disequilibrium in Seawater: A Comparison of Two Precipitation Methods With Differing Results

M Roca-Martí, V Puigcorbé, M Castrillejo… - Frontiers in marine …, 2021 - frontiersin.org
The disequilibrium between lead-210 (210Pb) and polonium-210 (210Po) is increasingly
used in oceanography to quantify particulate organic carbon (POC) export from the upper …