Geothermal Training Programme

NAME: Gylfi Páll Hersir INSTITUTE: Iceland GeoSurvey (ISOR) OFFICE ADDRESS: Grensasvegur 9, IS-108 Reykjavik,

Gylfi Páll Hersir - Geophysical Exploration

NAME: Gylfi Páll Hersir
INSTITUTE: Iceland GeoSurvey (ISOR)
OFFICE ADDRESS: Grensasvegur 9, IS-108 Reykjavik, Iceland



  • Mag. scient., Geophysics, Aarhus University, Denmark
  • B.Sc., Physics, University of Iceland


Gylfi Páll Hersir has organised and participated in many resistivity surveys (Schlumberger, head-on profiling, TEM and MT) in various geothermal areas in Iceland and internationally. He has given classes on geophysical exploration both in Iceland and abroad and has been involved in geothermal research for several decades; surveying and interpretation of geophysical data from most of Iceland and from various countries around the world, like Croatia, Chile, Nicaragua, Mexico, Turkey, Ethiopia, Kenya, Djibouti, Malawi, Tanzania and the Philippines.

In 2011 Gylfi worked half time at Iceland GeoSurvey and half time as an adjunct at the University of Iceland, Earth Science Faculty. He has worked at the United Nations University Geothermal Training Programme, University of Iceland and University of Reykjavík, as a lecturer and supervisor in surface geophysics. He is a member of the study board of UNU-GTP, and of Iceland School of Energy within the University of Reykjavík. He has written a book for the UNU Programme: Geophysical exploration for geothermal resources - Principles and application. 

Gylfi's studies include surface geophysical exploration; magnetics, gravity, but first and foremost resistivity surveys, primarily MT. He has worked on joint inversion of Schlumberger and head-on profiling and its interpretation with results from gravity and geology. He is presently working on joint inversion of TEM and MT data, review of exploration data and conceptual modelling. He is ICEIDA’s main consultant in geothermal exploration projects in East Africa and the leader of SP2 and ISOR’s project manager within IMAGE, a four years EU sponsored project, Exploration and Assessment of Geothermal Reservoirs (2013-2017). He is also the SP2 leader and ISOR’s project manager within GEMex (Cooperation in Europe Geothermal energy research-Mexico for development of Enhanced Geothermal Systems Geothermal Systems and Superhot), a three years EU sponsored project. 

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