GEOTRACES

A postdoctoral position is available for an NSF-funded project to study biological production of reactive oxygen species superoxide and hydrogen peroxide in the oligotrophic ocean (our primary study site is the ALOHA station vicinity). The work will primarily involve making measurements of superoxide and hydrogen peroxide concentrations and formation rates in the lab and at sea, using FeLume-type flow injection analysis instrumentation. The ideal candidate will have experience doing careful trace-metal clean analytical chemistry and experience planning seagoing work. The project is based at the Colorado School of Mines (located in Golden, CO near Denver and Boulder) and is a close collaboration with Colleen Hansel's microbiology research group at Harvard/WHOI.

For further information, or to apply for the position, e-mail Bettina Voelker.

Application materials (CV, cover letter explaining relevant experience, and names and contact information of three references) should be sent by March 12, 2012.

The Institute of Geosciences (IfG) of Christian-Albrechts-Universität in Kiel (CAU), Germany, is offering a PhD position in the field of

Radium isotopes as tracers for mixing processes at the oxygen minimum zone off Peru

This project will be carried out within the Collaborative Research Center „Climate - Biogeochemistry Interactions in the Tropical Ocean" (SFB 754) (http://www.sfb754.de) in close cooperation with the Helmholtz Centre for Ocean Research, Kiel, (GEOMAR). Within SFB 754, more than 30 research groups of various scientific backgrounds collaborate in order to better understand the mechanisms driving climate-related biogeochemical processes that control the extent and intensity of oxygen minimum zones.

Deadline: April 15, 2012.

Download the full announcement.

The GEOTRACES Brochure has now been updated!

A pdf version of the brochure is available to download from the GEOTRACES site.
Should you wish to have printed copies of the Brochure, please contact the GEOTRACES IPO.

Thanks to those who worked on updating the brochure!

The GEOTRACES site will remain offline for maintenance on Thursday 23 February (from 09:00 to 17:00 UTC/GMT+1).

We apologize for any inconvenience this may cause.

The UK-led cruise along 40ºS from South Africa to Uruguay (GEOTRACES A10) was successfully completed on 27th January. Twenty-four stations were occupied, with stand-alone pumps and sediment coring frequently adding to the central CTD work of the cruise. All key GEOTRACES parameters were (or will be) measured, along with a wide variety of other geochemical and biological parameters. Scientists from ten UK institutes were joined by a team from the US (WHOI) who conducted measurements of ocean mixing, and a team from Slovenia measuring mercury concentrations and speciation. The section was completed on board the RRS James Cook, funded by the UK funding agency, NERC, and the principal scientist was Gideon Henderson (University of Oxford).

Figure: The UK-GEOTRACES team on the RSS James Cook.