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Department of Earth Sciences

 
Palaeoclimate
Geochemistry
Glaciology

Research

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.

Publications

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.

Research Student
 Dieter  Tetzner

Contact Details

Email address: 
M05/BAS
+44 (0) 1223 364917

Affiliations

Collaborator profiles: 
Person keywords: 
palaeoclimate reconstructions
Stable isotopes
Ice Dynamics
Geochemistry
Glaciology
Subject: