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Dr. Pritam Yogeshwar

Address Pohligstr. 3, 50969 Köln
Room 3.233
Phone +49 (0)221 470-6127
Fax +49 (0)221 470-5198
Mail yogeshwarSpamProtectiongeo.uni-koeln.de

 

Research Topics

  • Geophysical electromagnetic induction methods for shallow, intermediate and deep Earth’s
    studies; (Transient Electromagnetics, Radiomagnetotelluric, Direct Current Resistivity)
  • Deep Electromagnetic Sounding for Mineral Exploration using LOTEM and innovative
    semi-airborne techniques
  • Environmental, Engineering and Groundwater Geophysics
  • Geophysical inverse problems and forward modelling

 

Projects

Co-Coordinator/Co-Applicant in various joint-collaborative research projects focusing on
numerical geophysical modeling, geophysical exploration and survey design as well as
application/interpretation of geophysical methods

  • Groundwater contamination due to waste disposal and aquifer characterization around Roorkee
    using integrated Geolelectric techniques
  • CRC 806 - Our Way To Europe. Late Quaternary High-Resolution Climate Archives in the
    Sahara
  • Detection of fresh groundwater bodies offshore Israel
  • DESMEX: Deep Electromagnetic Sounding for Mineral Exploration
  • CRC 1211 - Earth Evolution at the Dry Limit. Gephysical Studies to investigate sedimentady
    deposits in Atacama Desert, Chile
  • 3D CSRMT - Processing, modeling and inversion for far, near and transition zone data from
    selected targets in Russia
  • Imaging and Characterization of the Furnas Caldera, Sao Miguel, Azores Islands

For more information on the projects see here.

 

PhD / Diploma Thesis

  • Yogeshwar, P. (2014): A resistivity-depth model of the central Azraq basin area, Jordan: 2D forward and inverse modeling of time domain electromagnetic data. Institut für Geophysik und Meteorologie, PhD thesis, Universität zu Köln.
  • Yogeshwar, P. (2010): Grundwasserkontamination bei Roorkee/ Indien: 2D Joint Inversion von
    Radiomagnetotellurik und Gleichstromgeoelektrik daten. Institut für Geophysik and Meteorologie,
    Diploma thesis, Universität zu Köln.

 

Teaching

  • Co-supervisor/advisor of several BSc, MSc and PhD related research projects related to
    various geophysical methods and research focus
  • Teaching includes BSc and MSc modules in Geophysics: Applied Geophysics, Engineering
    and Environmental Geophysics, Platetectonics and Geophysical Exploration Methods,
    Direct Current and Electromagnetic Exploration Methods, Inverse Modeling, Introduction to
    Environmental Geophysics

 

Awards and Honors

2014/15

Albertus-Magnus teaching award of the University of Cologne

2015

Teaching award of the Sudent Council of the IGM, University of Cologne

2016

Travel Grant, German Academic Exchange Service ( DAAD) for 24 th Electromagnetic
Induction Workshop, Chiang Mai, Thailand

2017

DFG Travel Grant, Invited Speaker/German Delegate fot the 2 nd Sino-German Workshop in
Xingdao, China

 

Some Invited talks

11/2017

Invited talk at the 2 nd Sino-German Workshop on Electromagnetic Induction, Xingdao,
China

01/2016

Invited speaker in the geoscientific colloquium at the Johann-Wolgang-Goethe
Universität Frankfurt a.M.

01/2017

Invited speaker at the Winterschool of the faculty of natural sciences of the University
of Heidelberg in Obergurgl/Austria in January 2017: three hour lecture on near surface
geophysical methods for groundwater investigations

 

Some Further activities

  • Coordination of various small, intermediate and large scale field surveys for various geoelectric
    and electromagnetic methods (Surveys in Germany, India, Greece, Albania, Jordan, Ethiopia,
    Israel, Chile, Sweden, Russia, etc.)
  • Offshore receiver operator and QC for vertical line EM system, Petromarker/Stavanger
  • Organization of the 25th Schmucker-Weidelt colloquium on deep electromagnetic sounding,
    Olpe, 2013
  • Organization of the near surface RMT/TEM post-workshop in the frame of the 22 nd International
    Workshop on Electromagnetic Induction in the Earth to be held in Weimar, Germany, in 2014
  • Reviewer for international journals
  • member of the European Geoscience Union EGU
  • German Geophysical Society (DGG), Society of Exploration Geophysicists (SEG), IEEE

 

Publications

Peer-reviewed

 
  • Smirnova, M., Juhojuntti, N., Becken, M., Smirnov, M. & DESMEX-WG (2020). Exploring Kiruna iron ore fields with large-scale, semi-airborne, controlled-source electromagnetics. First Break38(10), 35-40. (P. Yogeshwar, W. Mörbe, B. Tezkan as part of DESMEX-WG) https://doi.org/10.3997/2214-4609.201902446

  • M. SmirnovaN. JuhojunttiM. BeckenM. SmirnovP. YogeshwarA. SteuerR. Rochlitz and M. Schiffler (2019). Combined 3D Inversion of Ground and Airborne Electromagnetic Data over Iron Ore in Kiruna. In 25th European Meeting of Environmental and Engineering Geophysics (Vol. 2019, No. 1, pp. 1-5). European Association of Geoscientists & Engineers. https://doi.org/10.3997/2214-4609.201902446
  • M. Becken, C. G. Nittinger, M. Smirnova, A. Steuer, T. Martin, H. Petersen, U. Meyer, W. Mörbe, P. Yogeshwar, B. Tezkan, U. Matzander, B. Friedrichs, R. Rochlitz, T. Günther, M. Schiffler, R. Stolz, and the DESMEX Working Group (2020). DESMEX: A novel system development for semi-airborne electromagnetic exploration. Geophysics85(6), 1-49. 
    https://doi.org/10.1190/geo2019-0336.1
  • Annika Steuer, Maria Smirnova, Michael Becken, Markus Schiffler, Thomas Günther, Raphael Rochlitz, Pritam Yogeshwar, Wiebke Mörbe, Bernhard Siemon, Stephan Costabel, Benedikt Preugschat, Malte Ibs-von Seht, Luigi Sante Zampa, Franz Müller (2020). Comparison of novel semi-airborne electromagnetic data with multi-scale geophysical, petrophysical and geological data from Schleiz, Germany. Journal of Applied Geophysics182, 104172.https://doi.org/10.1016/j.jappgeo.2020.104172
  • Peng, R., Yogeshwar, P., Liu, Y., & Hu, X. (2020). Transdimensional Markov Chain Monte Carlo joint inversion of direct current resistivity and transient electromagnetic data. Geophysical Journal Internationalhttps://doi.org/10.1093/gji/ggaa535
  • Audenrieth, I., Martin, R., Yogeshwar, P. and Willig, D. (2020), Analysis of measurement errors from electrical resistivity imaging investigation of First World War mining tunnels in La Boisselle, France. Near Surface Geophysics. Accepted Author Manuscript. doi:10.1002/nsg.12105
  • Yajun Liu, Pritam Yogeshwar, Xiangyun Hu, Ronghua Peng, Bülent Tezkan, Wiebke Mörbe, Jianhui Li (2020), Effects of electrical anisotropy on long-offset transient electromagnetic data, Geophysical Journal Internationalhttps://doi.org/10.1093/gji/ggaa213
  • Mörbe, W., Yogeshwar, P., Tezkan, B. and Hanstein, T. (2020), Deep exploration using long‐offset transient electromagnetics: Interpretation of field data in time and frequency domain. Geophysical Prospecting. doi:10.1111/1365-2478.12957
  • Pritam Yogeshwar, Mira Küpper, Bülent Tezkan, Volker Rath, Duygu Kiyan, Svetlana Byrdina, José Cruz, César Andrade, and Fatima Viveiros, (2020), "Innovative boat-towed transient electromagnetics — Investigation of the Furnas volcanic lake hydrothermal system, Azores," GEOPHYSICS 85: E41-E56, https://doi.org/10.1190/geo2019-0292.1
  • Devi, A., Israil, M., Singh, A., Gupta, P. K., Yogeshwar, P., & Tezkan, B. (2020). Imaging of groundwater contamination using 3D joint inversion of electrical resistivity tomography and radio magnetotelluric data: A case study from Northern India. Near Surface Geophysics,https://doi.org/10.1002/nsg.12092
  • Liu, Y., Hu, X., Peng, R., Yogeshwar, P., 2018. 3D forward modeling and analysis for loop-source transient electromagnetic method based on finite-volume method for an arbitrarily anisotropy earth, Chinese Journal of Geophysics, accepted
  • Cherevatova, M., Becken, M, Nittinger, C., Yogeshwar, P., Moerbe, W. Rochlitz, R. Steuer, A.
    Costabel, S. Smirnov, M., 2018. A novel semi-airborne frequency-domain CSEM system. Three-
    dimensional inversion of semi-airborne data from the flight experiment over an ancient mining
    area near Schleiz, Germany, submitted to Geophysics
  • Yogeshwar, P., Hamacher, S., Reçi, H., Hauck, T., Onuzi, K. and Tezkan, B., 2018. Investigating
    Sedimentological Architecture Using Electrical Resistivity Tomography: A Case Study from the
    Archaeological Open-Air Site Shën Mitri, Southern Albania Pure Appl. Geophysics,
    https://doi.org/10.1007/s00024-018-1987-6
  • Rochlitz, R., Queitsch, M., Yogeshwar, P., Günther, T., Chwala, A., Janser, S., Kukowski, N. &
    Stolz, R. , 2018. Capability of Low-Temperature SQUID for Transient Electromagnetics under
    Anthropogenic Noise Conditions. Geophysics, 83(6), 1-53.
  • Yogeshwar, P. and Tezkan, B., 2018. Analyzing two-dimensional effects in central loop transient
    electromagnetic sounding data using a semi-synthetic tipper approach, Geophysical Prospecting,
    66, 444-456.
  • Yogeshwar, P. & Tezkan, B., 2017. Two-dimensional basement modeling of central loop transient
    electromagnetic data from the central Azraq basin area, Jordan, Journal of Applied Geophysics,
    136, 198–210.
  • Yogeshwar, P., 2014. A resistivity-depth model of the central Azraq basin area, Jordan: 2D
    forward and inverse modeling of time domain electromagnetic data, Ph.D. thesis, Universität zu
    Köln, Institut für Geophysik und Meteorologie.
  • Yogeshwar, P., Haroon, A. & Tezkan, B., 2013. Investigation of the Azraq sedimentary basin,
    Jordan using integrated geoelectrical and electromagnetic techniques, Near Surface Geophysics,
    11, 283–291.
  • Yogeshwar, P., Israil, M., Candansayar, M. & Tezkan, B., 2012. Groundwater contamination in
    the Roorkee area, India: 2D joint inversion of radiomagnetotelluric and direct current resistivity
    data, Journal of Applied Geophysics, 76, 127-135.
  • Goldman, M., Levi, E., Yogeshwar, P. & Tezkan, B., 2011. The 2-D coastal effect on marine time
    domain electromagnetic (TDEM) measurements using broadside dBz/dt of an electrical,
    transmitter dipole, Geophysics, 76, 101–109.
 

Selected Conference Abstracts 2018

 
  • Cherevatova, M., C. Nittinger, M. Becken, P. Yogeshwar, W. Moerbe, B. Tezkan, R. Rochlitz, T. Guenther, H. Petersen, U. Meyer, A. Steuer, T. Martin, B. Siemon, U. Matzander, B. Friedrichs, R. Stolz, R. Schiffler, V. Zarosarenko, T. Seifert, P. Krolop, and the DESMEX group (2018). Three-dimensional inversion of the semi-airborne data collected over ancient antimony mine in eastern Germany. In: Geophysical Research Abstracts, European Geophysical Union General Assembly, Vienna, Austria. Vol. 20.
  • Küpper, M., P. Yogeshwar, B. Tezkan, V. Rath, D. Kiyan, C. Hogg, S. Byrdina, J. V. Cruz, C.
    Andrade, R. Branco, and F. Viveiros (2018). Transient electromagnetic measurements using a
    floating setup on the volcanic lake ”Lagoa das Furnas”, Sao Miguel (Azores): Investigation of the
    hydrothermal system. In: Geophysical Research Abstracts, European Geophysical Union General
    Assembly, Vienna, Austria. Vol. 20.
  • Morbe, W., P. Yogeshwar, and B. Tezkan (2018). Investigation of deep mineral deposits in
    Germany: Multidimensional Inversion of long offset CSEM data in time and frequency domain.In: proceedings of the 24th Electromagnetic Induction Workshop, Denmark.
  • Yogeshwar, P., M. Kupper, B. Tezkan, R. Bergers, V. Rath, D. Kiyan, C. Hogg, S. Byrdina, J.
    Cruz, C. Andrade, and F. Viveiros (2018a). A floating transient electromagnetic system to acquire
    dense data on volcanic lakes. In: Geophysical Research Abstracts, European Geophysical Union
    General Assembly, Vienna, Austria. Vol. 20. (poster)
  • Yogeshwar, P., M. Kupper, B. Tezkan, V. Rath, D. Kiyan, C. Hogg, S. Byrdina, J. Cruz, C.
    Andrade, and F. Viveiros (2018b). A floating transient electromagnetic system to acquire dense
    data on volcanic lakes - Investigation of the Furnas hydrothermal system (Sao Miguel Island,
    Azores). In: proceedings of the 24th Electromagnetic Induction Workshop, Helsingor, Denmark.
    (poster)
  • Yogeshwar, P., M. Kupper, B. Tezkan, V. Rath, D. Kiyan, C. Hogg, S. Byrdina, J. Cruz, C.
    Andrade, and F. Viveiros (2018b). A floating transient electromagnetic system to acquire dense
    data on volcanic lakes. In: Applied Geophysics Seminar, Cologne, Germany. (presentation)
  • Montecinos, D. ,Díaz. D. and Yogeshwar, P. (2018a). Imaging the shallow structure of the El
    Tatio geothermal field, using Time Domain Electromagnetics. In: proceedings of the 24th
    Electromagnetic Induction Workshop, Helsingor, Denmark.
  • Montecinos, D. ,Díaz. D. and Yogeshwar, P. (2018b). Imaging the shallow structure of the El
    Tatio geothermal field, using Time Domain Electromagnetics. In: proceedings of the 15 th
    Chilenean Geological Congress, Concepcion, Chile.
  • M. Schiffler, A. Chwala, M. Meyer, H. Petersen, A. Steuer, T. Martin, U. Meyer, R. Rochlitz, W.
    Mörbe, P. Yogeshwar, C. Nittinger, M. Cherevatova, M. Becken, R. Stolz (2018), First results
    from a SQUID-based semi-airborne electromagnetic measurement in the DESMEX project.
    Protokoll über die 78. Jahrestagung der Deutschen Geophysikalischen Gesellschaft, Leoben,
    Austria.