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GEOTRACES

@geotraces.bsky.social

220 followers 77 following 52 posts

More than 35 nations launched an ambitious program to explore the ocean chemistry: GEOTRACES, an International Study of the Marine Biogeochemical Cycles of Trace Elements and Isotopes www.geotraces.org/ youtu.be/IGUt4OZL2Z8 Data: www.geotraces.org/dp

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GEOTRACES @geotraces.bsky.social · Jan 8

GEOTRACES Data - Freely available!

Hydrographic and marine biogeochemical data from 89 cruises covering the global ocean (IDP2021 v2)

*Bulk download
bodc.ac.uk/geotraces/data/dp/
*Data subsetting
geotraces.webodv.awi.de
*Data analysis, visualisation
explore.webodv.awi.de
*Atlas
egeotraces.org

GEOTRACES Intermediate Data Product (IDP) 2021v2

The GEOTRACES Intermediate Data Product (IDP2021v2) consists of two parts, the digital datasets and the eGEOTRACES Electronic Atlas that provides section plots and animated 3D scenes of the data.

bodc.ac.uk

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GEOTRACES @geotraces.bsky.social · 13d

🌟New GEOTRACES Science Highlight! 🌟 🌊

Oceanic lead concentrations and isotopes mapped using explainable machine learning
www.geotraces.org/oceanic-lead...

Paper first author: Arianna Olivelli

@scor-int.bsky.social
@unoceandecade.bsky.social
#OceanScience #geochemistry #machinelearning

GEOTRACES @geotraces.bsky.social · 19d

New Student Opportunity! 🌊

Doctoral Researcher in the assessment of changing trace metal fluxes in the Central and Eastern Arctic Ocean, Technical University of Braunschweig, Germany
geotraces.org/doctoral-res...

#PhDposition #ScienceJobs

geotraces.org

GEOTRACES @geotraces.bsky.social · 21d

🌟New GEOTRACES Science Highlight!🌟

Dissolved nickel sources: transformation and sinks in the Arabian Sea 🌊
www.geotraces.org/dissolved-ni...

Paper first author: Nirmalya Malla, CSIR-NIO

#MarineScience #OceanScience #geochemistry
#biogeochemistry @scor-int.bsky.social

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Reposted by GEOTRACES

Jay T. Cullen @jaytcullen.bsky.social · 24d

🌊 More images from Otto Fiord which is above 80 N on the west side of Ellesmere Island, Nunavut 🇨🇦 in the Arctic. Sofie Ohrling is heading out from the icebreaker on a zodiac to sample near the glacier front and nearshore for trace elements @geotraces.bsky.social @uvicscience.bsky.social

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GEOTRACES @geotraces.bsky.social · 23d

🌊 PhD Opportunity in Marine Data Science!

Become a doctoral researcher in the project AI-queous: AI-derived thermodynamic parameters for aqueous modelling at GEOMAR, Germany, @geomarkiel.bsky.social

Apply here 👉 www.geotraces.org/doctoral-res...

#PhD #OceanScience #ScienceJobs

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GEOTRACES @geotraces.bsky.social · 28d

New GEOTRACES Science Highlight! 🌊

Linking cadmium cycling to phosphate dynamics in the Indian Ocean: Evidence from GEOTRACES transects
www.geotraces.org/linking-cadm...

Paper first author: Tapas Kumar Mishra, CSIR-NIO

@scor-int.bsky.social @unoceandecade.bsky.social
#OceanScience #geochemistry

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Reposted by GEOTRACES

Jay T. Cullen @jaytcullen.bsky.social · Aug 12

🌊🧪 Thank you to Véronique Rochefort of Amundsen Science for this Passages podcast about my group's work in the #Arctic Ocean to understanding trace element and isotope biogeochemistry under a changing #climate. open.spotify.com/episode/4ozD... @uvicscience.bsky.social @geotraces.bsky.social

Trace-Metal Dynamics in the Ocean: A Conversation with Jay Cullen

Passages · Episode

open.spotify.com

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GEOTRACES @geotraces.bsky.social · Sep 5

New GEOTRACES Science Highlight! 🌊

New software enables global ocean biogeochemical modeling in Python

Read it here: www.geotraces.org/new-software...

Paper first author: Samar Kathiwala, Waseda University

#OceanScience #OceanResearch
@scor-int.bsky.social

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GEOTRACES @geotraces.bsky.social · Aug 15

New Student Opportunity! 🌊

College of Fisheries and Ocean Sciences @UAF_CFOS seeks 12 PhD students for EMERGE Alaska (NSF-funded) starting May/Aug 2026.

Apply by Jan 15, 2026

🔗 Details: www.uaf.edu/cfos/academi...

#PhD #OceanScience #MarineScience @scor-int.bsky.social

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GEOTRACES @geotraces.bsky.social · Jul 30

🌊✨ New GEOTRACES Science Highlight! ✨ 🌊

Aerosol dissolution and iron isotope fractionation during atmospheric transport
👉 www.geotraces.org/aerosols-and...

Paper first author: Capucine Camin, Université de Toulouse

@scor-int.bsky.social
#oceanscience #marinescience #Biogeochemistry

GEOTRACES @geotraces.bsky.social · Jul 21

New GEOTRACES Science Highlight! 🌊

Paradoxical influence of hydrothermal methylmercury on local ecosystems
www.geotraces.org/paradoxical-...

Paper first author: Natalia Torres-Rodírguez
@mioceanologie.bsky.social
#OceanScience
@scor-int.bsky.social
#MarineScience #Methylmercury #biogeochemistry

GEOTRACES @geotraces.bsky.social · Jul 15

We are excited to announce two GEOTRACES sessions at Ocean Sciences #OSM2026 🌊 (22–27 Feb, Glasgow 🇬🇧)!

📌 OB020: Multi-tracer approaches
📌 CB002: Coastal & Island Mass Effects

📅 Submit your abstract by 20 Aug 2025, 23:59 EDT!

🔗 www.agu.org/Ocean-Scienc...

@scor-int.bsky.social
#OceanScience

Ocean Sciences Meeting 2026

Join AGU, TOS, and ASLO for the Ocean Sciences Meeting, held 22-27 February 2026, in Glasgow, Scotland. The meeting is the flagship conference for the ocean sciences community and the larger ocean-con...

www.agu.org

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GEOTRACES @geotraces.bsky.social · Jul 3

Early Career Scientist at #Goldschmidt2025?🌊
Join the GEOTRACES ECS Mixer!

🍕 Free pizza & drinks
🗓 Tue 8 July | 🕖 19:45
📍 U Olmeru (5 min walk)
maps.app.goo.gl/5w6ibKqC8q64...

Sign up 👇https://docs.google.com/forms/d/e/1FAIpQLSeWXAsmdWIWU99S1WH-Anl4RNSnfxhrgoiOmEcmTSiWT77awA/viewform

Goldschmidt GEOTRACES ECR mixer

Secure your place! When: Tuesday 8th July, 19:45 - 22:00 Where: U Olmeru, a 5-minute walk from the Goldschmidt venue Details: Join us to network with fellow GEOTRACES Early Career Researchers*. Free p...

docs.google.com

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GEOTRACES @geotraces.bsky.social · Jun 27

New GEOTRACES Science Highlight!🌊

Rare Earth and neodymium isotope cycles in the abyssal Pacific Ocean are shaking up the paradigm established for particle reactive tracers
www.geotraces.org/rare-earth-a...

Paper first author: Jianghui Du, Peking University

@scor-int.bsky.social
#oceanscience

Reposted by GEOTRACES

Prof Alessandro Tagliabue @altagliabue.bsky.social · Jun 16

Cool paper on MnOxides and the role of the seafloor in marine trace element cycling @geotraces.bsky.social 🌊

www.nature.com/articles/s41...

Abyssal seafloor as a key driver of ocean trace-metal biogeochemical cycles - Nature

Rare earth element and neodymium isotope data combined with models of particle cycling and sediment diagenesis suggest that the abyssal seafloor is a key driver of trace-metal biogeochemical cycles.

www.nature.com

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Reposted by GEOTRACES

Jay T. Cullen @jaytcullen.bsky.social · Jun 21

🌊 Now entering the Saugenay Fiord for first work this morning. We will test a new wire guide for deploying our specialized @geotraces.bsky.social trace element clean rosette/CTD system. It is designed to return physical data like temperature and salinity & uncontaminated seawater samples

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GEOTRACES @geotraces.bsky.social · Jun 9

✨ Less than ONE WEEK until the DEADLINE! ✨ 🌊

GEOTRACES @geotraces.bsky.social · May 15

🌊 ✨ Call for Applications Now Open ✨ 🌊

The GEOTRACES Early Career Scientists Committee (ECS) is now accepting applications for new members!

🗓️ Application deadline: 15 June 2025

Learn more and apply👇
www.geotraces.org/2025-ecs/

Share this! 📢 😊

#EarlyCareerResearchers
@scor-int.bsky.social

GEOTRACES @geotraces.bsky.social · Jun 3

✨🌊New GEOTRACES Science Highlight! 🌊✨

Anthropogenic iron impact on the surface productivity in the Pacific Transition Zone
www.geotraces.org/anthropogeni...

Paper first author: Nicholas J. Hawco, University of Hawaii at Manoa

#MarineScience #oceanscience #Biogeochemistry
@scor-int.bsky.social

GEOTRACES @geotraces.bsky.social · Jun 1

🌊 GEOTRACES will be at the One Ocean Science Congress #OOSC in Nice!

We’ll be highlighting 20 years of international collaborative research in marine geochemistry — visit our poster!

📍 Poster OOS2025-1317 | 3–6 June 2025
🔗 doi.org/10.5194/oos2...

@scor-int.bsky.social @unoceandecade.bsky.social

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GEOTRACES @geotraces.bsky.social · May 27

🌊 Pre-registration is open for GEOTRACES Summer School 2025!

📅 17–21 Nov | 📍 Cape Town
🎓 Training in marine biogeochemistry of trace elements & isotopes for 36 students.

Apply by 30 June 2025 👉 geotraces-2025.sciencesconf.org

#MarineScience #Biogeochemistry #SummerSchool
@scor-int.bsky.social

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GEOTRACES @geotraces.bsky.social · May 27

New Job Opportunity! 🌊

Postdoctoral Research Opportunity in Arctic Trace Metal Biogeochemistry, LEMAR/IUEM, Brest, France
www.geotraces.org/postdoc-2025...

#sciencejobs #Postdoc #biogeochemistry

Postdoctoral Research Opportunity in Arctic Trace Metal Biogeochemistry, LEMAR/IUEM, Brest, France – GEOTRACES

An International Study of the Marine Biogeochemical Cycles of Trace Elements and Isotopes - Trace Element data available including an on-line Atlas eGEOTRACES

www.geotraces.org

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GEOTRACES @geotraces.bsky.social · May 15

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GEOTRACES @geotraces.bsky.social · May 7

New GEOTRACES Science Highlight! 🌊

Coupling copper and neodymium data highlights the importance of the margin sources for the copper oceanic cycle
www.geotraces.org/coupling-cop...

Paper first author: Nolwenn Lemaitre

#OceanScience #geochemistry
@scor-int.bsky.social
@unoceandecade.bsky.social

GEOTRACES @geotraces.bsky.social · May 2

New Job Opportunity! 🌊

Postdoc in rare earth elements and Nd isotope cycling in the Antarctic, University of Minnesota–Twin Cities, USA
www.geotraces.org/postdoc-in-r...

#sciencejobs #postdoc #Job #geochemistry

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GEOTRACES @geotraces.bsky.social · Apr 30

Learn about the GEOTRACES success story in sharing open access marine biogeochemical data in this webinar:

Boosting Ocean Data Sharing in the UN Ocean Decade

🗓 May 7th, 2025
🕓 4 PM CET / 10 AM ET

🔗 Registration is now open: lnkd.in/ebTXqtD5

🌊
@unoceandecade.bsky.social
@scor-int.bsky.social

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