Thanks to all of you who have contributed data for the Intermediate Data Product (IDP) 2025.

Do not wait until next IDP deadline to contribute new data!

The DOoR remains open for submissions. Datasets received now will be processed for inclusion in a next IDP.

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How to ensure your data are included in IDP?
Check IDP Flowchart!

GEOTRACES Dates

- Cruises: 

13 December 2024 – 13 February 2025, ICCPACW (SANAE64), Process Study (GApr23), Southern Ocean.

20 February – 2 May 2025, DMV (V3/2025), Process Study (GPpr17), East Antarctica (Denman Glacier/Shackleton ice shelf).

11 June – 2 August 2025, Cruise KH25-02, Process Study (GPpr16), Pacific Ocean (Bering Sea).

- Upcoming GEOTRACES or GEOTRACES-related events:

3 - 7 March 2025, GEOTRACES Standards and Intercalibration Committee (S&I) meeting, Fairbanks, Alaska, USA.

27 April - 2 May 2024, EGU General Assembly (EGU2024), Viena, Austria. Check GEOTRACES related sessions. 

6 - 11 July 2025, Goldschmidt 2025), Prague, Czech Republic. Check GEOTRACES related sessions. Submit a session before 26 February!

13 - 14 October 2025, GEOTRACES Data Management Committee Meeting, Goa, India.

15 - 17 October 2025, GEOTRACES Scientific Steering Committee Meeting, Goa, India.

Access the GEOTRACES Calendar

Latest Publications

-       Baconnais, I., & Holmden, C. (2024). Shelf-to-basin shuttle of highly fractionated chromium isotopes in the Arctic Ocean. Geochimica et Cosmochimica Acta, 387, 83–97. doi:10.1016/j.gca.2024.09.027 

-       Laubach, A., Lee, J.-M., Sieber, M., Lanning, N. T., Fitzsimmons, J. N., Conway, T. M., & Lam, P. J. (2025). Particulate Cadmium Accumulation in the Mesopelagic Ocean. Global Biogeochemical Cycles, 39. doi:10.1029/2024gb008281

-       Maharaj, P. P. P., Barrett, P. M., & Ellwood, M. J. (2025). Biogeochemical cycling of dissolved Cu along the East Australian Current. Marine Chemistry, 268, 104481. doi:10.1016/j.marchem.2024.104481

-       Haryanto, M. J., Zhang, J., Alifia, Z., Kagaya, S., Horikawa, K., & Andreas, R. (2025). Unveiling method-derived element fractionation in determining seawater REEs using chelating resin and ICP-MS: Enhanced accuracy for finer-scale water mixing. Talanta, 287, 127614. doi:10.1016/j.talanta.2025.127614

-       Jenkins, W. J., Doney, S. C., Seltzer, A., German, C. R., Lott, D. E., & Cahill, K. L. (2025). A North Pacific Meridional Section (U.S. GEOTRACES GP15) of Helium Isotopes and Noble Gases II: Shallow Distributions. Journal of Geophysical Research: Oceans, 130. doi:10.1029/2024jc021737

Access the GEOTRACES Publication Database

GEOTRACES Publication Best Practices

 ✓ Please include “GEOTRACES” in either the title, abstract or keywords of your GEOTRACES publications.
 ✓ Intermediate Data Product (IDP) data contributors: Please use the DOoR portal to add any new publication of your data included in the IDP.
To facilitate future synthesis activities (and database searches), we strongly encourage you to select in the DOoR form (dropdown menu) the process your publications address.

 ✓ Please help us to acknowledge support from SCOR in your publications as follows: 
“The International GEOTRACES Programme is possible in part thanks to the support from the U.S. National Science Foundation (Grant OCE-2140395) to the Scientific Committee on Oceanic Research (SCOR).”

GEOTRACES in Numbers

Cruises completed: 156
Section cruises completed: 54
Publications: 2642