Andria P Ellis

Geodetic Network Manager at the U.S. Geological Survey Hawaiian Volcano Observatory

Biography

Background in geodesy, tectonics, research, numerical modeling, GPS instrumentation, and program management. Passionate about increasing inclusion and diversity within the Earth Sciences. 

 

EDUCATION 

Ph.D. (2017), Geophysics, University of Wisconsin - Madison

  • Thesis Title: A GPS Modeling Study of earthquakes adn deformation in northern Central America and Aalong the Middle America Trench: 1999 to 2017    Advisor: Chuck DeMets

B.S. (2011), Civil Engineering w/ Minor in Geology, University of the Pacific

 

PUBLICATIONS

Ellis, A., DeMets, C., McCaffrey, R., Briole, P., Cosenza Muralles, B., Flores, O., Guzmán-Speziale, M., Hernández, D., Kostoglodov, V., LaFemina, P., Lord, N., Lasserre, C., Lyon-Caen, H., Rodriguez Maradiaga, M., Molina, E., Rivera, J., Rogers, R., Staller, A., & Tikoff, B. (2019). GPS constraints on deformation in northern Central America from 1999 to 2017, Part 2: Block rotations and fault slip rates, fault locking and distributed deformation. Geophysical Journal International, 218(2), 729-754, https://doi.org/10.1093/gji/ggz173.

Ellis, A., DeMets, C., McCaffrey, R., Briole, P., Cosenza Muralles, B., Flores, O., Guzmán-Speziale, M., Hernández, D., Kostoglodov, V., LaFemina, P., Lord, N., Lasserre, C., Lyon-Caen, H., Rodriguez Maradiaga, M., Molina, E., Rivera, J., Rogers, R., Staller, A., & Tikoff, B. (2018). GPS constraints on deformation in northern Central America from 1999 to 2017, Part 1: Time-dependent modelling of large regional earthquakes and their post-seismic effects, Geophysical Journal International, 214(3) 2177–2194, https://doi.org/10.1093/gji/ggy249.

Ellis, A., DeMets, C., Briole, P., Molina, E., Flores, O., Rivera, J., Cécile, L., Lyon-Caen, H., and Lord, N., 2015. Geodetic slip solutions for the Mw=7.4 Champerico (Guatemala) earthquake of 2012 November 7 and its postseismic deformation. Geophysical Journal International, 201, 856-868, http://doi: 10.1093/gji/ggu484.

Saviz, C., A. Fernandez, E. Basha, A Ellis, K Hammarstrom, F. Leon, J. Hildebrand, and S. Ton. “Engineering Internships in Social Entrepreneurship: Developing Partnerships and Student Perspectives” proceedings of the 2011 ASEE Annual Conference, Vancouver, BC, Canada, June 26-29, 2011. Paper nominated for an American Society for Engineering Education (ASEE) National Conference Best Paper Award.

 

EXPERIENCE

  • USGS Geophysicist September 2020 - Present: Hawaiian Volcano Observatory, Hilo, HI
  • Workforce Development Specialist October 2018 - September 2020: UNAVCO Inc., Boulder, CO
  • Software Developer January 2018 - September 2018: Esker Inc., Madison, WI
  • Graduate Research Assistant August 2011 - December 2017: Department of Geoscience, University of Wisconsin - Madison
  • Earth Science Intern at Chevron Summer 2017: Reservoir Asset Management Team, Houston, TX
  • Geology Intern at BP Summer 2012: Reservoir Management Team, Anchorage, AK
  • Technology and Surveying Intern Summer 2010: Society of the Promotion of Area Resource Centers, Bangalore, India