GEOTRACES

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

News

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 […]

Announcement of the GEOTRACES Intermediate Data Product 2021

Following from the release of two intermediate data products in 2014 and 2017, the GEOTRACES Data Management Committee is pleased to announce the planned release of the third intermediate data product in July 2021 (IDP2021). For GEOTRACES principal investigators (PIs) with data to include in IDP2021, we remind you that you need to (1) submit […]

New educational materials for improving science literacy in students

Timothy Kenna and Margie Turrin from Columbia University, New York, have made available a new set of educational materials in English and Spanish for developing science literacy in students. They have produced three educational activities which all have a focus on understanding radioactivity in the environment. The first is a lab designed to introduce the […]

2nd Russian GEOTRACES Seminar was successfully held in Moscow, Russia, in February 2020

The 2nd Russian GEOTRACES seminar was held on February 7, 2020 in Moscow at the Shirshov Institute of Oceanology, Russian Academy of Sciences (https://ocean.ru). Prof. Dr. Eric Achterberg initiated the GEOTRACES seminar during his visit as part of the Helmholtz team. About 50 people attended the seminar in Moscow and some people listened to the […]

Learn about the forthcoming French GEOTRACES SWINGS cruise

SWINGS is a multidisciplinary 4-year project fully dedicated to elucidate trace element sources, transformations and sinks along a section crossing key areas of the Southern Ocean (SO). SWINGS aims at 1) establishing the relative importance of sedimentary, atmospheric and hydrothermal sources of trace elements and isotopes (TEIs) in the Indian sector of the SO, 2) […]

OSM2020: Get your data registered for IDP2021 at SCOR Booth & sessions

GEOTRACES will have a major presence at 2020 Ocean Sciences Meeting (16-21 February, 2020, San Diego, California, USA, https://www.agu.org/Ocean-Sciences-Meeting) This includes: ** IDP2021 dataset registration assistance at SCOR Booth ** ** GEOTRACES Sessions ** ** GEOTRACES-related events ** Please find the details below. **************** ** SCOR Booth ** You can get help registering your GEOTRACES datasets for inclusion in the next Intermediate Date Product (IDP2021, read […]

Science Highlights

Particulate fluxes and circulation in a changing Arctic Ocean: tracer data and modeling

A complete review of published and new water column profiles of 230Th and 231Pa concentrations and neodymium (Nd) isotopic compositions collected in the Amerasian Basin of the Arctic Ocean between 1983 and 2015 was performed by Grenier and co-workers (2019, see reference below). This review allowed them to identify regional and temporal variability of geochemical […]

Who produces methylmercury in the global ocean?

The UNEP Minamata Convention was ratified in August 2017 and aims to protect human health from mercury exposure by reducing anthropogenic, inorganic, mercury emissions. The most toxic and biomagnifying mercury species, methylmercury, is not emitted from anthropogenic or natural sources, but produced in the ocean from inorganic mercury. Marine mercury methylation has been confirmed for […]

Oceanic Margins as sources of lithogenic particulate and dissolved iron in the North Pacific Ocean

Three GEOTRACES Japanese cruises on board the R/V Hakuho Maru allowed establishing basin-scale and full-depth sectional distributions of total dissolvable iron (tdFe), dissolved iron (dFe), and labile particulate iron (lpFe=tdFe – dFe) in the North Pacific Ocean. Zheng and Sohrin (2019, see reference below) also discuss aluminum (Al) and manganese (Mn) data in this work. […]

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