GEOTRACES

An International Study of the Marine Biogeochemical Cycles of Trace Elements and Isotopes

News

GEOTRACES Arctic Ocean Halocline synthesis participation

Message to the Arctic GEOTRACES Community

GEOTRACES Annual Report to SCOR 2020

It is now available to download.

REMINDER: DEADLINES GEOTRACES IDP2021

The deadline for guaranteed inclusion of data in IDP2021, was May 15, 2020. We greatly appreciate those of you who have met this deadline. The final deadline for data set submission is December 15, 2020. We will make every effort to include all datasets that are submitted, but registering your data set as soon as possible […]

Fourth Asia GEOTRACES Workshop

“Sources/sinks and internal cycling of mercury and other TEIs in the Northwest Pacific Ocean” An Asia GEOTRACES Workshop: Sources/sinks and internal cycling of mercury and other TEIs in the Northwest Pacific Ocean, organized by Ocean University of China (OUC), was held during December 8-10, 2019, Qingdao, China. More than 50 participants from 9 countries, including […]

GEOTRACES Session at Virtual Goldschmidt 2020

Goldschmidt has gone Virtual for 2020 (21-26 June, https://goldschmidt.info/2020/). As a result, they are now accepting new abstracts until May 4th. Please consider submitting to the GEOTRACES Session: 14m: Biogeochemical Cycling of Trace Elements and their Isotopes in the Oceans (GEOTRACES) Keynote: Brandy TonerInvited Speakers: Jun Nishioka, Sam WilsonConveners: Tim Conway, Mariko Hatta, Nick Hawco Trace elements […]

EXTENDED DEADLINE – GEOTRACES Intermediate Data Product 2021

Given the current worldwide situation caused by COVID-19, the first deadline for the submission of datasets to GDAC (or national data centres for US, Dutch and French PIs) using DOoR templates and intercalibration reports via DOoR to guarantee inclusion in IDP2021 is extended to the 15th of May 2020. Please find below the initial announcement […]

Science Highlights

Rare Earth Elements and neodymium isotopes as tracers in the Mediterranean Sea

Garcia-Solsona and co-workers analysed 9 seawater stations around the central Mediterranean Sea…

A new model simulates the speciation and dispersion of hydrothermal iron

Roshan and collaborators present new observations of dissolved iron and its physical speciation in the South Pacific

Mechanisms driving biological CO2 drawdown in the Subarctic Pacific unraveled

Nishioka and co-authors compiled comprehensive data sets of iron and macronutrients covering the whole subarctic Pacific…

The biogeochemical ventures of dissolved iron and manganese across the Arctic Ocean

The spatial distributions and biogeochemical cycling of dissolved Fe (dFe) and dissolved manganese (dMn) across the Arctic Ocean were established during summer and fall 2015. The Canadian GEOTRACES transect extended from the Canada Basin (CB) to the Labrador Sea (LS) via the Canadian Arctic Archipelago (CAA). The surface, subsurface and deep water distributions for both […]

Arctic mercury export flux with marine particles higher than anticipated

In the ocean, the residence time of mercury (Hg), is largely driven by two removal mechanisms: evasion to the atmosphere and downward export flux with settling particles. The later was particularly poorly constrained in the Arctic Ocean, as was the Hg burial rate into the sediment. Using samples collected during the German GEOTRACES TransArcII (GN04) […]

Land inputs in the Arctic transported up to the North Pole

A new study found that freshwater runoff from rivers and continental shelf sediments are bringing significant quantities of carbon and trace elements into parts of the Arctic Ocean

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