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Director, Mitigation and Adaptation Research Institute (MARI)
Professor of Ocean, Earth and Atmospheric Sciences
Old Dominion University
Innovation Research Building I Room 3211
4111 Monarch Way
Norfolk VA 23508
P: +1-757-683-5335 M:+1-757-773-8884 Skype: hpplag Email: hpplag@odu.edu

Visiting Professor
Stevens Institute of Technology
Hoboken, NJ, USA, e-mail: hplag@stevens.edu

Adjunct Professor
Nevada Bureau of Mines and Geology and
Seismological Laboratory
University of Nevada, Reno
Mail Stop 178
Nevada 89557-0178


A wide range of aspects related to sustainability.
Global to local sea level changes and climate change
Earth system dynamics and global change
Earth observations
Solid Earth geophysics
Global geodynamics
Rheology of the Earth's mantle and continuum mechanics
Deformation of the solid Earth
Space geodesy and geodetic reference frames

  • Sustainability of the anthropsphere, global and climate change mitigation and adaptation;
  • Sea level fluctuations and impacts on humans and ecosystems;
  • Monitoring, analyzing variations, and modeling physical parameters of the Earth system from global to local spatial scales and temporal scales from minutes to millenia, including, but not limited to Earth rotation, displacements of the Earth surface, fluxes in the global water cycle, sea level, atmospheric water content, air pressure, temperature, wind, etc.;
  • General approach to studies of the Earth system;
  • Rheology of the Earth mantle;
  • Geophysical phenomena and geodetic observations related to global geodetic reference frames;
  • Earth rotation studies and integration of the solid Earth into Earth system models;
  • Deformations of the Earth due to exogenic forcing, particularly postglacial rebound and atmospheric, oceanic, hydrological and cryospheric loading;
  • Inproving the global geodetic reference frame as a major utility for all Earth observation;
  • Application of geodetic techniques to geohazards and early warning.

Derek Clarke, Hans-Peter Plag and Frederik Scholtz during a review of the geodetic program at HartRAO, the Radio-Astronomy Observatory at Hartebeesthoek, South Africa on June 24, 2016 at the National Research Foundation of South Africa. The review report is available here, and the response of the NRF management can be accessed here.