at the Department of Geological Sciences. Closing date: 1 March 2018.

Project description
A Terrestrial Carbon Source Hypothesis for Deglacial CO2 rise

This Phd project aims to test the hypothesis that during the dramatic (hydro)climatic changes occuring during the last transition out of the last ice age, a large amount of carbon stored in tropical vegetation, soils and peats was remineralized to CO2 during burning, erosion or coastal shelf flooding upon sea level rise. The last deglaciation provides the closest analog to the present-day steep rise in atmospheric CO2 but the source of this carbon and the underlying mechanisms are still not understood. Prior focus has been on the role of the ocean but evidence for this remains elusive. It has recently become clear that soils may be a critical modulator of atmospheric CO2. Tropical ecosystems contains the largest portion of terrestrial carbon. Molecular-level radiocarbon dating of soil organic matter in tropical sediment sequences will provide insight into the soil carbon stocks and dynamics of surrounding landscape. Combined with molecular-level reconstruction of past hydroclimate and fires, this allows evaluation of the importance of droughts, floods and fires on terrestrial carbon storage and release. The hypothesis will also be tested using Earth System models that can integrate climate change, the carbon cycle and the role the Earth´s biosphere, soils, peats and wetlands play in regulating atmospheric CO2. The project entails practical field and laboratory work as well as earth system modeling.

Qualification requirements
In order to meet the general entry requirements, the applicant must have completed a second-cycle degree, completed courses equivalent to at least 240 higher education credits, of which 60 credits must be in the second cycle, or have otherwise acquired equivalent knowledge in Sweden or elsewhere. The Faculty Board may grant an individual applicant with an exemption to this requirement in exceptional circumstances.

In order to meet the specific entry requirements, the general syllabus for doctoral studies in the field of Geochemistry stipulates that applicants must

  • at least 90 credits at the Bachelor´s level in geosciences or related natural science discipline
  • at least 30 credits in physics, chemistry, mathematics and/or biology
  • at least 60 credits at the advanced level in geosciences or related natural science discipline including an independent project of at lest 30 credits

These additional requirements can also be fullfilled by an applicant who has gained equivalent knowledge in some other way in Sweden or abroad.

The qualification requirements must be met by the deadline for applications.

Selection
The selection among the eligible candidates will be based on our assessment of the candidate´s capacity to succeed in doctoral education. Assesment criterie: the applicant´s documented subject knowledge relevant to the field of research, ability to express him/herself in speech and writing in English, ability for analytical thinking, creativity, own initiative, independence and cooperation. The assessment will be based on previous studies and grades, quality of independent work, references, relevant experience, interviews as well as the applicant´s written motivation for the position. The decision on admission is taken by the Department Board.

Admission Regulations for Doctoral Studies at Stockholm University are available at: www.su.se/rules.

Terms of employment
Only a person who will be or has already been admitted to a third-cycle programme may be appointed to a doctoral studentship.

The term of the initial contract may not exceed one year. The employment may be extended for a maximum of two years at a time. However, the total period of employment may not exceed the equivalent of four years of full-time study.

Doctoral students should primarily devote themselves to their own education, but may engage in teaching, research, and administration corresponding to a maximum of 20 % of a full-time position.

Please note that admission decisions cannot be appealed.

Stockholm University strives to be a workplace free from discrimination and with equal opportunities for all.

Contact
For more information, please contact Dr. Rienk Smittenberg, rienk.smittenberg@geo.su.se.

Union representatives
Ingrid Lander (Saco-S) and Lisbeth Häggberg (Fackförbundet ST and Lärarförbundet), telephone: +46 8 16 20 00 (operator), seko@seko.su.se (SEKO), and PhD student representative, doktorandombud@sus.su.se.

Application
Apply for the PhD student position at Stockholm University's recruitment system by clicking the "Apply" button. It is the responsibility of the applicant to ensure that the application is complete in accordance with the instructions in the job advertisement, and that it is submitted before the deadline.

Please include the following information with your application

  • Your contact details and personal data
  • Your highest degree
  • Your language skills
  • Contact details for 2–3 references

and, in addition, please include the following documents

  • Cover letter (max 3 pages) including:
    -why you are interested in the field/project describe in the advertisment
    -why and how you whish to complete the project
    -what makes you suitable for the project in question
  • CV – degrees and other completed courses, work experience and a list of degree projects/theses
  • Degree certificates and grades confirming that you meet the general and specific entry requirements (no more than 6 files)
  • Letters of recommendation (no more than 6 files)
  • Degree projects/theses (no more than 6 files).

The instructions for applicants are available at: Instructions – Applicants.

You are welcome to apply!

Stockholm University – our education and research produce results.

Closing date: 01/03/2018