GEOTRACES eNewsletter - February 2022

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February 2022 - Issue #49

GEOTRACES Science Highlights

Central Arctic fertilization by the Transpolar Drift

Their findings highlight the importance of the Transpolar Drift in delivering dissolved silica and iron to feed low diatom primary production in the central Arctic Ocean.

Dust deposition rates extracted from a data-assimilation model of the aluminium oceanic cycle

Xu and Weber developed a data-assimilation model of the aluminum oceanic cycle

Intense benthic nepheloid layers in the Northwest Atlantic Ocean lead to unexpected distributions of dissolved and particulate thorium-230 and protactinium-231

Chen and colleagues explore the behaviour of thorium-230 and protactinium-231 in the benthic nepheloid layers...

Specific features characterize the dissolved iron distribution in the North Western Indian Ocean

Venkatesh Chinni and Sunil Kumar Singh propose dissolved iron profiles along two meridional transects realized during spring and fall seasons between the Arabian Sea and the sub-tropical western Indian Ocean...

Quantifying the weathered fluxes to the ocean is far from over: the overlooked role of rock coast erosion

This study reveals that cliff derived sediment supply is only three times less than the solid discharge of rivers for Europe.

Contrasting distributions of dissolved manganese, nickel, cadmium and zinc in the Mediterranean Sea

Extensive trace metal clean sampling during the Dutch GEOTRACES cruise in the Mediterranean Sea allowed Middag and his colleagues to establish the basin scale distribution of these trace metals.

Special Focus

Exciting GEOTRACES programme at OSM2022!

GEOTRACES will have a major presence at 2022 Ocean Sciences Meeting
(24 February – 4 March 2022, Online everywhere: https://www.aslo.org/osm2022/)

This includes:

Town Hall: Accessing and utilizing the GEOTRACES 2021 Intermediate Data Product (programme)

6 GEOTRACES Sessions (list)

Presence at the virtual booth from SCOR

News

Expression of Interest for an Ultra-Clean "Dishwasher"

Please answer this short survey before 15 March 2022!

Departure of the German cruise in the South Pacific Ocean

Its ambitious cruise track, of more than 10000 km length, closes a critically large part in the coverage of ocean tracers and essential micronutrients in the South Pacific.

GEOTRACES Scientific Steering Committee (SSC) membership

The 2021 GEOTRACES Scientific Steering Committee (SSC) meeting was held virtually from 29th September to 1st October 2021.

Special Issue Announcement

Topic: The Changing Carbonate Systems in Coastal, Estuarine, Shelf Areas and Marginal Seas.

GEOTRACES Sessions at Goldschmidt 2022

Submit an abstract before 1st of March (23:59 CET)!

GEOTRACES Informations

GEOTRACES Dates

- Cruises:

18 February - 8 April 2022, German SO289 Section cruise (GP21), South Pacific Ocean (along 32.5 degrees south).

30 June - 20 September 2022, Japanese KH-22-7 Section cruise (GP22), North Pacific Ocean.

1 December 2022 - 25 January 2023, US GP17-OCE Section cruise (GP17), South Pacific and Southern Ocean.

- Upcoming GEOTRACES or GEOTRACES-related events:

27 February - 4 March 2022, Ocean Sciences Meeting 2022, on-line. Check the GEOTRACES sessions and the Town Hall Programme.

10-15 July 2022, Goldschmidt 2022, Honolulu, Hawaii and on-line. Check the GEOTRACES sessions. Submit an abstract before 1st March 2022!

10-17 July 2022, 3rd GEOTRACES Summer School: Introducing Polar Parameters, Bremerhaven, Germany. Pre-announcement, more information will be available soon!

Access the GEOTRACES Calendar

Job and Funding Opportunities

Check the GEOTRACES website to view the latest job and funding opportunities posted including:

2022 Call for SCOR Working Groups

Lecturer in Marine Geochemistry, University of Bristol, UK

Latest Publications

- Marsay, C. M., Kadko, D., Landing, W. M., & Buck, C. S. (2022). Bulk aerosol trace element concentrations and deposition fluxes during the US GEOTRACES GP15 Pacific Meridional Transect. Global Biogeochemical Cycles. https://dx.doi.org/10.1029/2021gb007122

- Moore, W. S., Frankle, J. D., Benitez‐Nelson, C. R., Früh‐Green, G. L., & Lang, S. Q. (2021). Activities of 223 Ra and 226 Ra in Fluids From the Lost City Hydrothermal Field Require Short Fluid Residence Times. Journal of Geophysical Research: Oceans, 126(12). https://dx.doi.org/10.1029/2021jc017886

- Plass, A., Retschko, A., Türk, M., Fischer, T., & Scholz, F. (2021). A novel device for trace metal‐clean sampling of bottom water and suspended particles at the ocean’s lower boundary: The Benthic Trace Profiler. Limnology and Oceanography: Methods. https://dx.doi.org/10.1002/lom3.10473

- Xiang, Y., Lam, P. J., & Lee, J. M. (2021). Diel Redox Cycle of Manganese in the Surface Arctic Ocean. Geophysical Research Letters. https://dx.doi.org/10.1029/2021gl094805

- Zhang, R., Jensen, L., Fitzsimmons, J., Sherrell, R. M., Lam, P., Xiang, Y., & John, S. (2021). Iron Isotope Biogeochemical Cycling in the Western Arctic Ocean. Global Biogeochemical Cycles, 35(11). https://dx.doi.org/10.1029/2021gb006977

Access the GEOTRACES Publication Database

GEOTRACES in Numbers

Cruises completed: 131
Section cruises completed: 44
Publications: 1721

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