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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

 
  • 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.