PhD in IAGA #5

IAGA has a lot of different scientists working on various topics. In this series of blogs, we will introduce some topics that are being worked on by PhD students. Hopefully this will give a better picture of the work being done in the field and encourage more early career researchers.

Sarasija Sanaka, is a PhD student working at the Institute of Geophysics Polish Academy of Science, Poland. Her supervisor is Dr. hab. Anne Neska. Sarasija says:

My research is about source effects in Magnetotellurics. Source effects are the inappropriate source signals which lead to distortion in the results, which further leads to misinterpretation of the subsurface electrical structure. My task is to identify and understand the origin of such problematic signals. Such signals are dominant in the high to mid-latitude regions. To recognize source effects, we have considered long-term magnetotelluric data, because they reveal temporal changes which cannot be explained by subsurface conductivity changes.

The above figures represent time-dependent transfer functions at 4000s for Grabnik (GRB) and Suwałki (SUV) stations in Poland.


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