Hilary R. Martens

Associate Professor


CHCB 329/330
(406) 243-6855
Office Hours

Please refer to the course syllabus. 


Curriculum Vitae
View/Download CV


2024 | MBA, University of Montana | College of Business

2016 | PhD, California Institute of Technology | Geophysics

2015 | MS, California Institute of Technology | Geophysics

2010 | MPhil, St. John's College, University of Cambridge | Geophysics

2009 | MSc, University College London | Space Science

2008 | BA, University of Montana | Physics

2008 | BA, University of Montana | Fine Arts - Music

Courses Taught

Spring 2024

GEO 439: Geophysics

Fall 2023

On sabbatical (ETH Zurich, Switzerland)

Spring 2023

GEO 546: Seismology & Geodesy

Fall 2022:

Geo 107N: Natural Disasters

Geo 316: Getting Started in Research

Geo 597: Advanced Problems: Research Mentorship

Spring 2022:

Geo 439: Geophysics

Geo 597: Advanced Problems: Hydrogeodesy


Geo 597: Advanced Problems: Hydrogeodesy Literature | Spring 2021

Geo 546: Seismology & Geodesy | Spring 2021

Geo 107N: Natural Disasters | Spring 2018, Fall 2019, Spring 2019, Summer 2019, Fall 2019, Spring 2020, Fall 2020, Fall 2021

Geo 390: Getting Started in Research

Geo 224N: General Science: Physics and Geosciences | Fall 2020

Geo 439: Geophysics | Spring 2020

Geo 491: Undergraduate Research Methods | Spring 2020

Geo 492: Independent Study (GPS processing and analysis) | Fall 2020

Geo 582: Topics in Structure and Geophysics | Spring 2018

Geo 491: Introduction to Geophysics | Fall 2017

Geo 595: Special Topics, Geophysical Theory and Methods | Spring 2017

Field of Study

Earth Deformation | Surface Loading | Tides | Earthquake & Volcano Seismology | Planetary Science


* = graduate student

** = undergraduate student

2024 | *Swarr, M.J., H.R. Martens, & Y. Fu (2024). Sensitivity of GNSS-derived estimates of terrestrial water storage to assumed Earth structure. doi:10.1029/2023JB027938. [https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023JB027938]

2023 | *Duzet, C.J., H.R. Martens, & M.C. Stickney (2023). 1-D seismic velocity models for west-central and western Montana, Seismological Research Letters, 94 (5): 2257–2272, doi:10.1785/0220220202. [https://pubs.geoscienceworld.org/ssa/srl/article-abstract/94/5/2257/624315/1D-Seismic-Velocity-Models-for-West-Central-and]

2023 | White, A.M., L.J. Lajoie, E. Knappe, H.R. Martens, *M.J. Swarr, *A. Khatiwada, *B. Oliver, *M. Perry, *N. Clayton, R. Bendick, A.A. Borsa, D.F. Argus, & W.P. Gardner (2023). High-density integrated GNSS and hydrologic monitoring network for short-scale hydrogeodesy in high mountain watersheds, Earth & Space Science, doi:10.1029/2022EA002678. [https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2022EA002678]

2022 | Argus, D.F., H.R. Martens, A.A. Borsa, E. Knappe, D.N. Wiese, S. Alam, M. Anderson, *A. Khatiwada, N. Lau, A. Peidou, *M. Swarr, A. White, M. Bos, F.W. Landerer, & P. Gardner (2022). Subsurface water flux in California's Central Valley and its source watershed from space geodesy. Geophysical Research Letters, e2022GL099583, doi:10.1029/2022GL099583. [https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2022GL099583]

2022 | White, A., W.P. Gardner, A.A. Borsa, D.F. Argus, & H.R. Martens (2022). A review of GNSS/GPS in hydrogeodesy: Hydrologic loading applications and their implications for water resource research. Water Resources Res., 58, e2022WR032078, doi:10.1029/2022WR032078. [https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2022WR032078]

2021 | Xue, L., Y. Fu, & H.R. MartensSeasonal hydrological loading in the Great Lakes region detected by GNSS: a comparison with hydrological models, Geophysical Journal International, 226(2), 1174-1186, doi:10.1093/gji/ggab158. [https://academic.oup.com/gji/article-abstract/226/2/1174/6232161]

2021 | *Smith, E., H.R. Martens, & M. Stickney. Microseismic evidence for bookshelf faulting in western Montana, Seismological Research Letters, 92(2A), 802-809, doi:10.1785/0220200321. [https://pubs.geoscienceworld.org/ssa/srl/article/doi/10.1785/0220200321/594050/Microseismic-Evidence-for-Bookshelf-Faulting-in]

2020 | Martens, H.R., D.F. Argus, **C. Norberg, G. Blewitt, T.A. Herring, A.W. Moore, W.C. Hammond, & C. Kreemer. Atmospheric pressure loading in GPS positions: Dependency on GPS processing methods and effect on assessment of seasonal deformation in the contiguous U.S. and Alaska, Journal of Geodesy, 94(115), doi:10.1007/s00190-020-01445-w. [https://link.springer.com/article/10.1007/s00190-020-01445-w]

2020 | Argus, D.F., B. Ratliff, C. Demets, A. Borsa, D. Wiese, G. Blewitt, J. Crowley, H.R. Martens, C. Kreemer, & F. Landerer. Rise of Great Lakes surface water, sinking of the upper Midwest of the United States, and viscous collapse of the forebulge of the former Laurentide ice sheet, Journal of Geophysical Research: Solid Earth, 125(9): 1-16, doi:10.1029/2020JB019739. [https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020JB019739]

2020 | Martens, H.R. & M. Simons. A comparison of predicted and observed ocean tidal loading in Alaska, Geophysical Journal International, 223(1): 454-470, doi:10.1093/gji/ggaa323. [https://academic.oup.com/gji/article-abstract/223/1/454/5863947]

2019 | Martens, H.R., L. Rivera, & M. Simons. LoadDef: A Python-based toolkit to model elastic deformation caused by surface mass loading on spherically symmetric bodies, Earth and Space Science, 6: 1-13, doi:10.1029/2018EA000462. [https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018EA000462]

2019 | *Knappe, E., R. Bendick, H.R. Martens, D. Argus, & W. Gardner. Downscaling vertical GPS observations to derive watershed-scale hydrologic loading in the norther Rockies, Water Resources Res., 55(1): 391-401, doi:10.1029/2018WR023289. [https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018WR023289]

2019 | *McMahon, N.D., W.L. Yeck, M.C. Stickney, R.C. Aster, H.R. Martens, & H.M. Benz. Spatiotemporal analysis of the foreshock-mainshock-aftershock sequence of the 6 July 2017 M5.8 Lincoln, Montana, earthquake, Seismol. Res. Lett., 90(1): 131-139, doi:10.1785/0220180180. [https://pubs.geoscienceworld.org/ssa/srl/article/90/1/131/566214/spatiotemporal-analysis-of-the-foreshock-mainshock]

2017 | Argus, D.F., F.W. Landerer, D. Wiese, H.R. Martens, Y. Fu, J.S. Famiglietti, B.F. Thomas, T.G. Farr, A.W. Moore, & M.M. Watkins. Sustained water loss in California's mountain ranges during severe drought from 2012 through 2015 inferred from GPS, J. Geophys. Res. Solid Earth, 122: 10,559–10,585, https://doi.org/10.1002/2017JB014424. [https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1002/2017JB014424]

2016 | Martens, H.R., M. Simons, S. Owen, and L. Rivera. Observations of ocean tidal load response in South America from subdaily GPS positions, Geophys. J. Int., 205(3):1637-1664, doi:10.1093/gji/ggw087. [http://gji.oxfordjournals.org/content/205/3/1637.short] (Winner of the GJI Student Author Award | Open Access)

2016 | Martens, H.R., L. Rivera, M. Simons, and T. Ito. The sensitivity of surface mass loading displacement response to perturbations in the elastic structure of the crust and mantle, J. Geophys. Res., 121(5):3911-3938, doi:10.1002/2015JB012456. [http://onlinelibrary.wiley.com/doi/10.1002/2015JB012456/full]

2016 | Martens, H.R. Using Earth deformation caused by surface mass loading to constrain the elastic structure of the crust and mantle, Dissertation (PhD), California Institute of Technology, doi:10.7907/Z9N29TX7. [http://thesis.library.caltech.edu/9666/]

2015 | Schuler, J., T. Greenfield, R.S. White, S.W. Roecker, B. Brandsdóttir, J.M. Stock, J. Tarasewicz, H.R Martens, and D. Pugh. Seismic imaging of the shallow crust beneath the Krafla central volcano, NE Iceland, J. Geophys. Res. Solid Earth, 120, doi:10.1002/2015JB012350. [http://onlinelibrary.wiley.com/doi/10.1002/2015JB012350/full]

2015 | Lin, N.Y., R. Jolivet, M. Simons, P.S. Agram, H.R. Martens, Z. Li, and S.H. Lodi. High interseismic coupling in the Eastern Makran (Pakistan) subduction zone, Earth Planet. Sci. Lett., 420:116--126. [http://www.sciencedirect.com/science/article/pii/S0012821X15001867]

2015 | Martens, H.R., A.P. Ingersoll, S.P. Ewald, P. Helfenstein, and B. Giese. Spatial distribution of ice blocks on Enceladus and implications for their origin and emplacement, Icarus, 245:162-176, doi:10.1016/j.icarus.2014.09.035. [http://www.sciencedirect.com/science/article/pii/S0019103514005016]

2013 | Martens, H.R., and R.S. White. Triggering of microearthquakes in Iceland by volatiles released from a dyke intrusion, Geophys. J. Int., 194(3):1738-1754, doi:10.1093/gji/ggt184. [http://gji.oxfordjournals.org/content/194/3/1738] (Open Access)

2011 | White, R.S., J. Drew, H.R. Martens, J. Key, H. Soosalu, and S.S. Jakobsdóttir. Dynamics of dyke intrusion in the mid-crust of Iceland, Earth Planet. Sci. Lett., 304(3-4):300-312, doi:10.1016/j.epsl.2011.02.038. [http://www.sciencedirect.com/science/article/pii/S0012821X11001178]

2010 | Martens, H.R., R.S. White, J. Key, J. Drew, H. Soosalu, and S.S. Jakobsdóttir. Dense seismic network provides new insight into the 2007 Upptyppingar dyke intrusion, Jökull, 60:47–66. [http://eprints.esc.cam.ac.uk/1981/1/207_Martens_etal_Jokull_2010.pdf]

2008 | Martens, H.R., D.B. Reisenfeld, J.D. Williams, R.E. Johnson, and H.T. Smith. Observations of molecular oxygen ions in Saturn's inner magnetosphere, Geophys. Res. Lett., 35(20), doi:10.1029/2008GL035433. [http://onlinelibrary.wiley.com/doi/10.1029/2008GL035433/full] (Designated a GRL Highlight)

International Experience

Academic Guest: ETH Zurich, Switzerland

  • June 2023 - January 2024
  • May-December 2019
  • June-August 2018

Graduate Student: Cambridge University, England

  • September 2009 - November 2010

Graduate Student: University College London, England

  • September 2008 - September 2009