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Dieter Tetzner

Dieter Tetzner

Research Student

Palaeoclimate

Geochemistry

Glaciology

M05/BAS
Office Phone: +44 (0) 1223 364917

Research Interests

I am interested in the role that winds have played in shaping the climate of the Antarctic Peninsula and the Amundsen-Bellingshausen Seas region over the last centuries. To determine how changes in wind strength and atmospheric circulation have impacted the regional climate, it is necessary to study how winds have evolved in the past.

Ice cores yield valuable climatic information through the use of proxy records. As part of my PhD, I am developing a novel proxy for localized wind conditions based on the abundance and diversity of marine diatoms entrained in ice cores from the Antarctic Peninsula, West Antarctica, and sub-Antarctic islands. This proxy, combined with already proven long-range wind strength and circulation proxies (dust concentration and continental ions), sea salts, water stable isotopes and marine organic compounds (Methansulphonic acid (MSA)), will allow developing an ice core multi-proxy reconstruction of regional wind strength and atmospheric circulation over centennial timescales.

Additionally, I work in two UK-Chile initiatives that will drill and analyze ice cores from the icefields in the Patagonia region between 2020-2022, the Southern Patagonian icefield (PIECES project) and the Cordillera Darwin icefield (CODICES project). Both projects funded by National Geographic.

Keywords

palaeoclimate reconstructions ; Stable isotopes ; Ice Dynamics ; Geochemistry ; Glaciology

Collaborators

Collaborators outside this directory

Key Publications

Allen, C. S., Thomas, E. R., Blagbrough, H., Tetzner, D. R., Warren, R. A., Ludlow, E. C., & Bracegirdle, T. J. (2020). Preliminary Evidence for the Role Played by South Westerly Wind Strength on the Marine Diatom Content of an Antarctic Peninsula Ice Core (1980–2010). Geosciences10(3), 87.

Hoffmann, K., Fernandoy, F., Meyer, H., Thomas, E. R., Aliaga, M., Tetzner, D., ... & Jaña, R. (2020). Stable water isotopes and accumulation rates in the Union Glacier region, Ellsworth Mountains, West Antarctica, over the last 35 years. Cryosphere14, 881-904.

Tetzner, D., Thomas, E., & Allen, C. (2019). A Validation of ERA5 Reanalysis Data in the Southern Antarctic Peninsula—Ellsworth Land Region, and Its Implications for Ice Core Studies. Geosciences, 9(7), 289.

Thomas, E. R., & Tetzner, D. R. (2018). The climate of the Antarctic Peninsula during the twentieth century: evidence from ice cores. In Antarctica-A Key To Global Change. IntechOpen.

Fernandoy, F., Tetzner, D., Meyer, H., Gacitúa, G., Hoffmann, K., Falk, U., Lambert, F., and MacDonell, S.: New insights into the use of stable water isotopes at the northern Antarctic Peninsula as a tool for regional climate studies, The Cryosphere, 12, 1069-1090, https://doi.org/10.5194/tc-12-1069-2018, 2018.

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