We are a team of talented professionals with a wide range of skills and experience. We love what we do, and we do it with passion. We look forward to working with you.

Ryszard Hejmanowski
Professor, Head of Land Subsidence
and Hazard Mitigation Research Group
AGH Universtiy of Science and Technology, Cracow, Poland
Ryszard Hejmanowski is the Dean of the Faculty of Geo-Data Science, Geodesy and Environmental Engineering at the AGH UST. He received a MSc Degree in Geodesy and Cartography from the AGH UST in 1983. Afterwards, he worked as a Researcher at the TU Clausthal in Germany, where he graduated with a doctorate in 1993. During his stay in Germany, he designed concepts and developed software for land subsidence prediction caused by the oil- and gas extraction. After returning to Cracow, Ryszard Hejmanowski worked as Assistant Professor at his Alma Mater on the modelling of rock mass and land subsidence. He adapted his software for other raw material deposits (salt, coal, copper ore). After receiving a DSc position in 2004, he worked on GIS, geohazards and risk assessment issues. Since 2015 he has been a Full Professor. Ryszard Hejmanowski was the principal investigator on five Polish government-funded research grants. Various international research institutes have invited him to collaborate on projects and steering committees concerning the monitoring, modelling and prediction of land subsidence. He is a member of the Polish Academy of Sciences – Committee of Geodesy, a Chair of the 4th Commission of the International Society for Mine Surveying (ISM), a Chair of the Polish Committee of the ISM, the American Geophysical Union and Deutsche Markscheider Verein e.V. He has over 30 years of experience working with the mining industry.
List of publications available at ResearchGate
Email me: hejman@agh.edu.pl
Agnieszka A. Malinowska
Associate Professor
AGH Universtiy of Science and Technology, Cracow, Poland
Agnieszka A. Malinowska holds a MSc (2007) in Geology and Mining Engineering, a PhD (2011) in Geodesy and Cartography and Postdoctoral Academic Title (2012) in Geohazard and Risk Assessment from AGH University of Science and Technology, Cracow, Poland. Since 2019 she has been an Associate Professor at her former university, where she does research and lectures in modelling and monitoring of ground surface movements, GIS, geohazards and risk assessment related to mining operations. Agnieszka A. Malinowska was a principal investigator of two research grants financed by the National Science Center in Poland. She is a member of several international organisations including the UNESCO Working Group on Land Subsidence, the European Geosciences Union and the International Society for Mine Surveying. Agnieszka A. Malinowska also has a 15-years’ experience in the cooperation with the industry in the areas related to planning and safety management of ground surface movements.
List of publications available at ResearchGate
Email me: amalin@agh.edu.pl


Wojciech T. Witkowski
Assistant Professor
AGH University of Science and Technology, Cracow, Poland
Wojciech T. Witkowski is an Assistant Professor at the AGH UST. He graduated from the AGH UST in 2012 with a master’s degree in Geology and Mining and a doctorate in Geodesy and Cartography in 2017. During his doctoral studies, he applied machine learning techniques to model mining-induced groundwater-related land subsidence. This research was made possible by a grant from the National Science Centre of Poland. After receiving his doctorate, he began investigating the application of InSAR to the study of land surface deformation caused by human activities. During the years 2020 and 2021, he worked on the application of COSMO-SkyMed and ICEYE data to the determination of the strain tensor deformation of ground movements and the monitoring of infrastructure deformation in the area of intense ground surface displacements. The National Science Centre of Poland awarded him a grant in 2020 “Novel Algorithm of Sinkhole Precursors Detection”, which is being conducted in collaboration with the Geological Surveys of Israel and Canada. The project assumes that advanced satellite data processing combined with Machine Learning tools will allow for a better understanding of the mechanism of sinkhole formation and the efficient detection of precursors to the deformation process. Wojciech T. Witkowski is a member of the European Geoscience Union and the International Society for Mine Surveying. He has ten years of experience in cooperation with the mining industry in the field of assessing the impact of mining operations on the Earth’s surface.
List of publications available at ResearchGate
Email me: wwitkow@agh.edu.pl
Artur Guzy
Research Assistant
AGH University of Science and Technology, Cracow, Poland
Artur Guzy works as a Research Assistant at the AGH UST. He is also a Post-Doc at the University of Padova in Italy on the project “Conserve Water or Drown in the Consequences: Sustaining the Sinking Mekong Delta”. He graduated from the AGH UST in 2017 with a master’s degree in Geoinformation and Mining Surveying and a doctorate in Civil Engineering and Transport in 2022. His doctoral dissertation employed numerical and stochastic modelling to develop a novel method for predicting ground movements resulting from mining-induced drainage of aquifer systems. The National Science Center of Poland recognized this dissertation and funded the research through the Preludium grant “Modelling Land Surface Movements Due to Rock Mass Drainage”. Artur Guzy was also a principal investigator on the European Space Agency’s “Application of InSAR to Model Compaction of the Aquifer System and Movement of the Land Surface in Abandoned Mines” project, which was conducted in partnership with the University of Aberdeen in Scotland. He shed new light on the environmental effects of mining-induced aquifer dewatering druing this time, paving the way for more sustainable mineral extraction. His research interests also include the observation, modelling and forecasting of land surface movements, sinkhole occurrence, and mining-induced seismicity utilising InSAR. He holds membership in the European Geosciences Union, the International Association of Hydrogeologists and the European Association of Geoscientists and Engineers. Artur Guzy has five years of experience working with the mining industry to manage hazards in mining areas.
List of publications available at ResearchGate
Email me: aguzy@agh.edu.pl


Magdalena Łucka
Ph.D. Candidate
AGH University of Science and Technology
Magdalena Łucka is a PhD candidate in Geoinformation and Mining Surveying at the AGH UST.
She received her master’s degree in Geoinformation and Mining Surveying from the AGH UST in 2020. In her doctoral thesis, she investigates the kinematics of glaciers in the Arctic and alpine regions in the context of global climate change using machine learning algorithms and earth observation data. She is particularly interested in the use of ICEYE data to estimate flacier motion. The European Space Agency recognized this research with the grant “Possibilities of Using ICEYE Microsatellites to Estimate Glacier Surface Motion”. Her scientific interests also include the application of earth observation data to model sinkholes and the occurrence of induced seismicity. Magdalena Łucka has three years of experience considering collaboration with mining companies in terms of land surface protection from mining-induced adverse effects.
List of Publications available at ResearchGate
Email me: magdalena.lucka@agh.edu.pl
We have cooperated with the following researchers
Maria Ferentinou
Associate Professor
University of Johannesburg, South Africa
Maria Ferentinou graduated with a degree in Geology from the University of Patras and a PhD in Engineering Geology from the National Technical University of Athens, where she has spent three years as a Post-Doc researcher. She has been working in the industry in the consulting sector from 1997-2005 and was involved in more than 40 major infrastructure projects, such as the Athens Metro tunnel, and Egnatia Odos Project. She moved to South Africa in 2013, to work at the University of KwaZulu – Natal as a lecturer in Rock Mechanics and Rock Engineering. She later joined the University of Johannesburg in 2016 and is currently an Associate Professor in Geotechnics – Engineering Geology, and the Head of Department Civil Engineering Science. Ferentinou’s research focuses on Landslide susceptibility assessment, slope stability, rock engineering systems, application of artificial intelligence into engineering geology and geomorphology, coastal vulnerability, unsaturated soils. Currently, she is engaged in the study of slope failure mechanism, and sinkhole propagation using fiber bragg gratings and small scale physical modelling. She is a member of the Editorial Board of the Bulletin of Engineering Geology and the Environment, and a member of the joint International Association of Engineering Geology (IAEG) commission C37 – on Landslides Nomenclature. She is rated by the National Research Foundation in South Africa, as an established researcher, (C2).
List of publications available at ResearchGate
Email me: mferentinou@uj.ac.za


Hendrik Grobler
Associate Professor
University of Johannesburg, South Africa
Hendrik Grobler started his mining career as a learner official with JCI in 1987 and obtained the Government Certificate of Competency: Mine Surveying in 1994. In 2015 he completed a PhD Degree at Witwatersrand University. Hendrik Grobler gained experience in coal-, gold-, platinum-, nickel- and chrome mining projects before joining the University of Johannesburg in 2007. His industrial experience includes monitoring of geological hazards, subsidence monitoring, mine planning, ore reserve valuation, mine sampling, alignment of survey networks, ore reconciliation and forensic surveys. He has consulted for gold, platinum, coal, copper, diamond, manganese, chrome, fluorspar and montmorillonite mining projects.
List of publications available at ResearchGate
Email me: hgrobler@uj.ac.za
Dai Hua-yang
Professor
China University of Mining and Technology, Beijing, China
Dai Hua-yang graduated from the Mine Surveying Faculty, Jiaozuo Institute of Technology, Henan, China with a MSc Degree (1978). Since then he has been engaged in the research of theory and control technologies of mining subsidence. He has participated in the study of 40-odd state or provincial-level research programs. He is also the author of 110 published academic papers and 3 books. He is the Member of Commission 4, International Society for Mine Surveying (ISM), Member of Expert Committee of Coal Mining Technology, China National Coal Association, Deputy Secretary-General & Member of Mining Damage Technique Evaluation Committee, China Coal Society, and member of Mine Surveying Committee, China Coal Society. Currently, Dai Hua-yang is a professor of the Department of Surveying and Land Use, China University of Mining and Technology, Beijing.
List of publications available at ResearchGate
Email me: dhy@cumtb.edu.cn


Yan Yue-guan
Associate Professor
China University of Mining and Technology, Beijing, China
Yan Yue-guan holds a MSc (2007) and a PhD (2010) in Mine Spatial Informatics and Subsidence Control Engineering in China University of Mining and Technology, Beijing and PhD co-supervision (2008-2010) in Radar Remote Sensing from University of New South Wales, Australia. He has participated in the study of 10-odd state or provincial-level research programs about mining subsidence and deformation monitoring. He is the Member of Expert Committee of Coal Mining Technology, China National Coal Association, and member of Mine Surveying Committee, China Coal Society. Currently, Yan Yue-guan is an associate professor and vice-director of the Department of Surveying and Land Use, China University of Mining and Technology, Beijing.
List of publications available at ResearchGate
Email me: yanyueguan@cumtb.edu.cn
Wei Tang
Assistant Professor
China University of Mining and Technology, Beijing, China
Wei Tang holds a MSc (20013) in Geodesy and Surveying Engineering, a PhD (2017) in Photogrammetry and Remote Sensing and Postdoctoral Research Fellow (2018) in Radar Remote Sensing from GFZ German Research Center for Geosciences, Germany. Since 2017 he has been an Assistant Professor at China University of Mining and Technology, Beijing, where he does research and lectures in monitoring and modelling of ground surface deformations related to mining activities, groundwater extraction, oil exploitation and CO2 injection. Wei Tang has extensive experience in using satellite and ground-based geodetic observations to study ground surface displacement.
List of publications available at ResearchGate
Email me: weitang@cumtb.edu.cn


Ebrahim Salmi
Research Scientist
Commonwealth Scientific and Industrial Research Organisation, Australia
Ebrahim Salmi is a Research Scientist in Mining Geo-mechanics Engineering working for the Commonwealth Scientific and Industrial Research Organisation (CSIRO), and for Mining3 in Brisbane, Australia. Ebrahim is also and Adjunct Senior Researcher at the School of Civil Engineering, in the University of Tasmania, Hobart, Australia. Ebrahim has a PhD in Geotechnical Engineering from the ARC Centre of Excellence for Geotechnical Science and Engineering (CGSE), at the University of Newcastle, Australia. He also holds a BSc in Mining Geo-mechanics Engineering from Isfahan University of Technology and a MSc in Rock Mechanics and Rock Engineering from Tehran Polytechnic, Iran. During his PhD (2012-2016), Ebrahim worked on the long-term stability analyses of abandoned mine workings and the mechanisms of post-mining subsidence. He numerically investigated the effects of the time-dependent behaviour of rock on the mechanism of post-mining subsidence. Ebrahim also has over 8 years of practical experience in rock engineering, and numerical modelling for the design and stability analysis of surface and underground excavations in rocks. He has been involved with a broad range of projects including numerical modelling for analysing the tunnelling induced surface settlements in urban areas, support system design to control the excavations induced ground movements, stability analyses of rock structures, tunnelling in problematic grounds, and investigating the risk of rock-slide hazards in mountainous areas. Ebrahim also worked on a number of projects related to the long-term stability analyses of abandoned coal mine workings and the associated post-mining subsidence.
List of publications available at ResearchGate
Email me: Ebrahim.FathiSalmi@uon.edu.au
Ahmed Wedam Ahmed
M.Sc. Student
Ataturk University, Erzurum, Turkey
Ahmed Wedam Ahmed holds a MSc Degree (2019) in Geological Engineering from Ataturk University, Erzurum, Turkey and BSc Degree in Petroleum Engineering (2015) from University of Mines and Technology, Tarkwa, Ghana. His scientific interests include joint research on biodegradation of crude oil as a lab assistant and currently are concerned with monitoring, modelling and prediction of mining-induced land subsidence. In his doctoral thesis, he intends to develop a new methodology for the prediction of ground movements induced by groundwater head changes in deep aquifers. Moreover, Ahmed Wedam Ahmed has a year of experience in cooperation with the mining industry in terms of bitumen and lubricants supply.
List of publications available at ResearchGate
Email me: ahmedwedam.ahmed16@ogr.atauni.edu.tr
