Postdoc on Iron sources to the ocean - AWI, Bremerhaven, Germany

Background and Tasks

The Marine Biogeosciences Section invites applications for a position partially funded by DFG (German Research Foundation) and partially by the AWI strategy fund project DustIron as Postdoctoral researcher to study the contribution of different iron sources to the ocean under present-day and glacial climate conditions, using a global biogeochemical model of iron. This project is in collaboration with the institute of Geology and Mineralogy at the University of Cologne, and the sections Marine Geochemistry, Climate Dynamics and Marine Geology at AWI.

Iron is an essential micronutrient for ocean biota and the enhanced dust deposition has been proposed to be a key factor to lower atmospheric CO2 during the last glacial maximum. There is, however, still no consensus on the mechanisms behind the iron distribution and especially on the relative role of different external iron sources to the ocean (e.g. aeolian dust, marine sediments, hydrothermal and riverine inputs).
A new tool to constrain the role of the different oceanic iron sources is the stable isotopic composition of dissolved iron. You will on the one hand use a global biogeochemical model of iron with an explicit representation of isotopic effects to disentangle the role of different processes affecting the isotopic composition of dissolved iron in the ocean; and on the other hand study the effect of modern and past changes in natural dust deposition over Southern Ocean in a project that aims at improving process understanding in a closely coupled sediment data – model approach.


  • You should have a finished doctoral thesis (by the deadline of application) in marine chemistry or biology, environmental sciences, oceanography or a related discipline
  • Knowledge and experience in programming with Fortran and in using Unix/Linux computers is required
  • Experience with climate models or marine biogeochemical models is advantageous
  • You should be willing to work in a multidisciplinary team
  • Very good knowledge of English is expected

Further Information

For further information please contact Dr. Ying Ye (+49 471-4831-2093, and Dr. Christoph Völker (+49 471-4831-1848,

The position is limited to 2 years. The salary will be paid in accordance with the German Tarifvertrag des öffentlichen Dienstes (TVöD Bund), up to salary level 13. The place of employment will be Bremerhaven.

Please forward your application by January 31st, 2020 exclusively online:
Reference number: 19/152/G/Bio-b

Assistant Professor of Biological Oceanography, University of Southern Mississippi

Biological Oceanography – Assistant Professor Position

The Division of Marine Science in the School of Ocean Science and Engineering (SOSE) at The University of Southern Mississippi (USM) invites qualified applicants for a full-time, nine-month, tenure-track position in Biological Oceanography at the Assistant Professor level to begin in the Fall 2020.

USM offers an exceptional environment for a successful career in marine science with tremendous strength in collaboration across science, engineering, education and outreach. A regionally, nationally, and internationally recognized leader in marine science, SOSE comprises two academic divisions (Marine Science and Coastal Science), several R&D centers (Hydrographic Science Research Center, Center for Fisheries Research and Development, and Thad Cochran Marine Aquaculture Center), and a fleet of research vessels. SOSE is rapidly expanding with a Center for Ocean Enterprise just breaking ground in October 2019 and a regional-class R/V funded by NSF to be delivered in 2022.

Division of Marine Sciences offers graduate and undergraduate programs across traditional marine science emphasis areas in biological, physical, chemical and geological oceanography, as well as hydrographic science and ocean engineering. The M.S. and Ph.D. degrees in Marine Science and the M.S. degree in Hydrographic Science are delivered at the NASA Stennis Space Center, where Marine Science faculty benefit from close working relationships with a number of on-site federal agencies, including the Naval Research Laboratory-Stennis Space Center, the Naval Oceanographic Office, the Naval Meteorology and Oceanography Command, the USGS and NOAA’s National Data Buoy Center. The Marine Science and Ocean Engineering B.S. degree programs are delivered at the USM Gulf Coast Campus in Long Beach, MS, at USM’s main campus in Hattiesburg, MS, as well as at the recently opened USM Marine Research Center, which features a state-of-the-art fabrication lab, testing tank, and laboratory space.

Applicants must hold a Ph.D. in oceanography, biological oceanography, or a related field. Preference will be given to candidates with post-doctoral experience, and a demonstrated record of scholarship, service, grant development, communication, and commitment to diversity. The successful candidates are expected to develop a vigorous externally funded research program, maintain a strong publication record, advise students, and provide outstanding teaching in their field of specialization. The successful candidate should also demonstrate the potential to contribute across disciplines and promote the continued interdisciplinary growth of the academic and research programs within SOSE. Applicants should submit a letter of interest outlining their qualifications for the position, including a research plan, teaching philosophy with a curricular plan, a curriculum vitae, and names and contact information of at least four references. References will not be contacted until later stages of the search. Salary packages will be nationally competitive and commensurate with experience. Applications must be submitted online at For inquiries about the position, contact Xiaodong Zhang, Chair of the Search Committee, at 1-228-688-3178 or Review of applications begins 1 February 2020 and continues until the position is filled, with an anticipated start date of August 2020. The successful candidate will be required to pass a NASA background security check to work at Stennis Space Center, and a USM employment background check.

As an Affirmative Action/Equal Employment Opportunity employer/Americans with Disabilities Act institution, The University of Southern Mississippi encourages minorities, women, veterans and persons with disabilities to apply. For more information about Southern Miss, visit our website at

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