PhD Sub-millennial scale ice-ocean correlations the past 1.3 Ma

The Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI) is a member of the Helmholtz Association (HGF) and funded by federal and state government. AWI focuses on polar and marine research in a variety of disciplines such as biology, oceanography, geology, geochemistry and geophysics thus allowing multidisciplinary approaches to scientific goals.

PhD Position "Sub-millennial scale ice-ocean correlations over the past 1.3 Ma" (m/f/d)

Background

IODP Expedition 383 drilled high-resolution and continuous sedimentary sequences from the Pacific Southern Ocean to study atmosphere-ocean dynamics of the Antarctic Circumpolar Current (ACC). Sedimentation rates of several tenths of a centimeter per 1000 years will, for the first time, allow for detailed ice-ocean correlations over the past 0.8 to 1.3 Ma covering the range of the envisaged “Beyond EPICA – oldest ice” records.

The PhD project will generate high-resolution sea surface temperature (SST) records in the central South Pacific and at the southern Chilean margin that will allow us to explore in detail the orbital and sub-orbital-scale climate variability in the subantarctic ACC. We will focus on key time intervals, including important climate transitions such as the Mid-Pleistocene Revolution, beyond the present reach of ice-cores. These reconstructions will provide important benchmarks for a climate-sensitive region that are important constraints to more realistically model the impact on the ocean carbon cycle under different climate boundary conditions.

The position is part of our recruiting initiative AWI INSPIRES - INternational Science Program for Integrative Research in Earth Systems. AWI INSPIRES aims at strengthening our new research program “Changing Earth, Sustaining our Future”. Details about all open positions and the general application requirements can be found at

.

Tasks

You will

• generate key records of sea-surface temperature (SST) from IODP sites in the central South Pacific and at the Chilean margin to ~1.3 Ma and 0.8 Ma, respectively;
• apply different organic biomarkers for reconstructing SST (e.g., alkenones, TEX86) and potentially dust (e.g, n-alkanes);
• closely co-operate with other research groups involved in Expediton 383 (e.g., oxygen isotope studies, dust flux, grain-size studies, paleoproductivity); and
• collaborate with climate modellers to explore the long-term reference records for improving models

Requirements

• A Master’s degree in geosciences (geochemistry, biogeochemistry, paleoceanography or related fields).
• Practical knowledge in organic geochemical laboratory methods and analytical instrumentation.
• Experience with organic biomarkers for paleo-studies would be advantageous.
• High proficiency in both written and spoken English.
• Readiness to participate in international collaborations, including stays abroad.

Further Information

For further information please contact
Dr. Frank Lamy
(Frank.Lamy@awi.de, +49(471)4831-1219) or
Prof. Dr. Ralf Tiedemann
(Ralf.Tiedemann@awi.de, +49(471)4831-1200).
The position is limited to 3 years. The salary will be paid in accordance with the Collective Agreement for the Public Service of the Federation (Tarifvertrag des öffentlichen Dienstes, TVöD Bund), up to salary level

13 (66%).
The place of employment will be
Bremerhaven.
All doctoral candidates will be members of AWI’s postgraduate program
and thus benefit from a comprehensive training program and extensive support measures.

This characterizes us

• our scientific success - excellent research.
• collaboration and cooperation - intra-institute, national and international, interdisciplinary.
• opportunities to develop – on the job, aiming at other positions and beyond AWI.
• a culture of reconciling work and family – audited, and even more than that.
• our outstanding research infrastructure – ships, stations, aircraft, laboratories and more.
• an international environment – everyday contacts with people from all over the world.
• having an influence – fundamental research with social and political relevance
• flat hierarchies – freedom and responsibility.
• exciting topics – also in technology, administration and infrastructure.

Equal opportunities are an integral part of our personnel policy and we encourage women to apply.
Disabled applicants will be given preference when equal qualifications are present. The AWI fosters the compatibility of work and family through various means. Because of our engagement in the area of work-life compatibility we have been awarded the certificate “Career and Family”.

We look forward to your application!

Please forward your application with letter of motivation explaining why you want to join one of our research areas, two letters of recommendation and a list of publications by

February 16
th
, 2020
exclusively online.
Selected candidates will be invited to present their research ideas and motivation during the “Annual recruitment days”, planned from 16 to 24 March 2020 in Bremerhaven, Germany.

mehr...

zur Vakanz

Weitere Jobs von Alfred-Wegener