GEOTRACES Science Highlights
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– Seasonal iron supply in the Southern Ocean is dominated by winter mixing
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An international team of researchers analysed the available dissolved iron data taken from all previous studies of the Southern Ocean, together with satellite images taken of the area, to quantify the amount of iron supplied to the surface waters of the Southern Ocean....
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– Why is the deep ocean zinc isotopic signature so heavy?
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The oceanic balance of the micronutrient zinc is getting more puzzling –although better documented- while the Zn isotope data set increases. Presenting the first high resolution section of seawater dissolved Zn concentration and Zn isotope ratios from the North Atlantic, Conway and John confirm that the deep ocean is fairly homogeneous…
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– Present day neodymium isotopic composition of the Caribbean Sea deep waters questions the paleo-application of this tracer in restricted basins
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The first profiles of neodymium concentration and isotopic composition in the Carribbean Sea have been published. They show that surface and intermediate waters flow through the Caribbean with essentially unchanged Nd isotopes ratios, whereas deep waters are strongly modified…
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– The sources of the water soluble organic matter contained in the aerosols over the Atlantic ocean decoded
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Organic matter is an important component of aerosols, which can absorb (or scatter) light, contributing a warming (or cooling) effect to the atmospheric radiative budget. However, this impact is tightly linked to the molecular characteristics of aerosol organic matter. It is, therefore, of prime importance to establish the organic matter molecular details of aerosols from different sources…
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GEOTRACES News
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– Forthcoming GEOTRACES eNewsletter special issue on outreach and educational activites!
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The GEOTRACES Programme would like to devote an special issue of its eNewsletter to GEOTRACES outreach and educational activities.
Please help us to prepare this issue by sending us (ipo@geotraces.org) both information about individual events and materials of any outreach or educational activities about the GEOTRACES Programme you have been involved with.
We are interested in all types of individual activities and events (please provide at least date, location and web page, if available) and materials (presentations, videos, comics, books, etc.). Materials can be in languages other than English (in this case, please indicate the language).
It is very important for the visibility of the programme to collect and record all these activities, so we thank you very much for your collaboration!
 E-book of popular ocean science posters.
Copyright@ Tung-Yuan Ho and Ya-Ling Huang
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GEOTRACES in Numbers
| » Cruises completed: |
51 |
» Section cruises completed:
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23 |
» Stations completed:
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732
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GEOTRACES Dates
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– Cruises:
9 November – 3 December 2014, Shelf Seas – Process Study, Celtic Sea.
2 December 2014 – 26 Febrary 2015, Section cruise GP19, Western South Pacific and Antarctic Sea.
– Forthcoming GEOTRACES Meetings:
13 – 14 July 2015, GEOTRACES Data Management Committee Meeting,
Vancouver, Canada.
15 – 17 July 2015, GEOTRACES Scientific Steering Committee, Vancouver, Canada.
– Forthcoming GEOTRACES Special Sessions:
15 – 19 December 2014, American Geophysical Union Fall 2014 Meeting, San Francisco, California, USA.
22 – 27 February 2015, ASLO 2015, Aquatic Sciences Meeting, Granada, Spain.
23 – 27 March 2015, 3rd International Symposium on “Effects of Climate Change on the World’s Oceans”, Santos, Brazil.
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| Access the GEOTRACES Calendar |
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Latest Publications
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– Benjamin S. Twining, Scott D. Nodder, Andrew L. King, David A. Hutchins, Gary R. LeCleir, Elizabeth W. DeBruyn, Jennifer M.; Maas, et al. (2014). Differential remineralization of major and trace elements in sinking diatoms. Limnology and Oceanography, 59(3), 689–704. doi: 10.4319/lo.2014.59.3.0689.
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– Wuhui Lin, Hao Ma, Liqi Chen, Zhi Zeng, Jianhua He, Shi Zeng (2014). Decay/ingrowth uncertainty correction of (210)Po/(210)Pb in seawater. Journal of environmental radioactivity, 137, 22–30. doi:10.1016/j.jenvrad.2014.06.005.
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– Von der Heyden, B. P., Hauser, E. J., Mishra, B., Martinez, G. A., Bowie, A. R., Tyliszczak, T., et al. Myneni, (2014). Ubiquitous Presence of Fe(II) in Aquatic Colloids and Its Association with Organic Carbon. Environmental Science & Technology Letters, 1(10), 387–392. doi:10.1021/ez500164v.
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– Osborne, A. H., Haley, B. A., Hathorne, E. C., Flögel, S., & Frank, M. (2014). Neodymium isotopes and concentrations in Caribbean seawater: Tracing water mass mixing and continental input in a semi-enclosed ocean basin. Earth and Planetary Science Letters, 406, 174–186. doi: 10.1016/j.epsl.2014.09.011.
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– Wozniak, A. S., Willoughby, A. S., Gurganus, S. C., & Hatcher, P. G. (2014). Distinguishing molecular characteristics of aerosol water soluble organic matter from the 2011 trans-North Atlantic US GEOTRACES cruise. Atmospheric Chemistry and Physics, 14(16), 8419–8434. doi:10.5194/acp-14-8419-2014.
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– Srinivas, B., Sarin, M. M., & Rengarajan, R. (2014). Atmospheric transport of mineral dust from the Indo-Gangetic Plain: Temporal variability, acid processing, and iron solubility. Geochemistry, Geophysics, Geosystems, 15(8), 3226–3243. doi:10.1002/2014GC005395.
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| Acces the GEOTRACES Database |
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Banner 3D scene figure: 3D scene showing the distribution of dissolved iron in the Atlantic Ocean. Source: Schlitzer, R., eGEOTRACES – Electronic Atlas of GEOTRACES Sections and Animated 3D Scenes, http://www.egeotraces.org, 2014. |
