Emma HILL

Principal Investigator

Associate Professor, Asian School of the Environment

NRF Fellow

Group Representative

Phone:

+65 6592 1603

Fax:

(+65) 6790 1585

Email:

ehill@ntu.edu.sg

Office Location:

N2-01c-48

Additional Website:

https://emmahill.squarespace.com/

Research Group:

Tectonics, Climate

Team:

Geodesy Group - Emma Hill

Research:

Emma Hill’s research interests involve the application of space geodesy to understanding climate change and natural hazards. She is currently investigating the tectonic deformation of the Sumatran subduction zone using high-precision GPS geodesy, with the overall goal of understanding earthquake hazard in the region. Emma Hill also uses GRACE satellite gravity and the global tide-gauge network to study glacier melting and regional variations in sea-level change. A particular research focus is the development of techniques to combine different geodetic data sets for the purpose of separating the effects of the many different geophysical processes occurring in the Earth system.

Education:

- 2005 PhD in Geophysics: Department of Geological Sciences, University of Nevada, Reno, USA
- 1999 Bsc in Surveying and Mapping Science: Department of Geomatics, University of Newcastle upon Tyne, UK

Professional Experience:

- 2010 - Present : Assistant Professor, Principal Investigator, Earth Observatory of Singapore, Nanyang Technological University, Singapore
- 2010 - 2012 : Research Associate, Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts, USA
- 2007 - 2010 : Geodesist with the Space Geodesy Group, Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts, USA
- 2005 - 2007 : Post-doctoral Fellow with the Space Geodesy Group, Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts, USA
- 1999 - 2005 : Graduate Research Assistant, Nevada Bureau of Mines and Geology / University of Nevada, Reno, Nevada, USA

Professional Activities:

- 2010-2012 Member of the Council of the American Geophysical Union. The Council is responsible for developing the scientic policy and direction of the AGU, an 60,000 scientific member organization
- Chair (2010) and Member (2007-2009) of the UNAVCO Education and Outreach Advisory Committee. UNAVCO is a large, non-profit consortium whose mission is to support and promote earth science by advancing the high-precision measurement of crustal deformation.
- 2010 Member of the UNAVCO Bylaws Task Force
- 2010 Member of the American Geophysical Union Strategic Planning Task Force, a 16-member task force with the purpose of drafting a plan for the strategic direction of AGU over the next 5-10 years.
- 2008-2010 E-mentor for female and minority-group graduate students in science and engineering through the MentorNet program (www.mentornet.net). Provide advice and support on career progression and any personal/professional difficulties to a geoscience graduate student through weekly e-mail communications.
- 2006, 2009, 2010, 2011, 2012 Judge for the Outstanding Student Paper Award (Geodesy section) at the AGU Fall Meetings.
- Responsible for organizing the student poster competition at the 2009 EarthScope National Meeting. Organized 30 scientists to judge a combined total of 150 presentations.
- Convener of various special sessions at AGU and AOGS meetings over the years.

Courses Taught:

ES7002 - Seminar series
ES7008 - Geophysical Data Analysis

Honours and Awards:

- Singapore National Research Foundation Fellow, 2011
- Nanyang Assistant Professorship, Nanyang Technological University, 2011
- University of Nevada, Reno, Department of Geological Sciences Award for Best 2004-2005 Geo-
physics Graduate Student, 2005
- American Geophysical Union Geodesy Section Outstanding Student Paper Award for talk given
at Fall 2002 Annual Meeting, 2003
- Zonta Amelia Earhart Fellowship for Outstanding Women Graduate Students in Aerospace Engineering, 2001
- First Place in University of Nevada, Reno, Student Poster Competition , 2002
- Geological Society of America Allan Cox Award for Outstanding Student Research Grant Proposal, 2001
- University of Nevada, Reno, Department of Geological Sciences Award for Best 2000-2001 Geo-
physics Graduate Student, 2001
- University of Newcastle upon Tyne Department of Geomatics Award for Best 1996{1997 Surveying
and Mapping Science Student, 1997

Publications:

Peng, D., Hill E. M., Li L., Switzer A. D., & Larson K. (2019). Application of GNSS interferometric reflectometry for detecting storm surges. GPS Solutions. 23,
Peng, D., Hill E. M., Meltzner A. J., & Switzer A. D. (2019). Tide Gauge Records Show That the 18.61‐Year Nodal Tidal Cycle Can Change High Water Levels by up to 30 cm. Journal of Geophysical Research-Oceans. 124, 736-749.
Qiu, Q., Moore J. D. P., Barbot S., Feng L., & Hill E. M. (2018). Transient rheology of the Sumatran mantle wedge revealed by a decade of great earthquakes. Nature Communications. 9(995),
Meltzner, A. J., Switzer A. D., Horton B. P., Ashe E., Qiu Q., Hill D. F., et al. (2017). Half-metre sea-level fluctuations on centennial timescales from mid-Holocene corals of Southeast Asia. Nature Communications. 8(14387),
Bradley, K. E., Feng L., Hill E. M., Natawidjaja D. H., & Sieh K. E. (2017). Implications of the diffuse deformation of the Indian Ocean lithosphere for slip partitioning of oblique plate convergence in Sumatra. Journal of Geophysical Research: Solid Earth. 122(1), 572-591.
Morgan, P. M., Feng L., Meltzner A. J., Lindsey E. O., Tsang L. L. H., & Hill E. M. (2017). Sibling earthquakes generated within a persistent rupture barrier on the Sunda megathrust under Simeulue Island. Geophysical Research Letters. 44, 2159–2166.
Wang, Y., Wei S., Wang X., Lindsey E. O., Tongkul F., Tapponnier P., et al. (2017). The 2015 Mw 6.0 Mt. Kinabalu earthquake: an infrequent fault rupture within the Crocker fault system of East Malaysia. Geoscience Letters.
Monecke, K., Meilianda E., Walstra D-J., Hill E. M., McAdoo B. G., Qiu Q., et al. (2017). Postseismic coastal development in Aceh, Indonesia - Field observations and numerical modeling. Marine Geology. 392, 94-104.
Salman, R., Hill E. M., Feng L., Lindsey E. O., Veedu D. M., Barbot S., et al. (2017). Piecemeal rupture of the Mentawai patch, Sumatra: The 2008 Mw 7.2 North Pagai earthquake sequence. Journal of Geophysical Research.
Feng, L., Barbot S., Hill E. M., Hermawan I., & Banerjee P. (2016). Footprints of past earthquakes revealed in the afterslip of the 2010 Mw 7.8 Mentawai tsunami earthquake. Geophysical Research Letters. 43(18), 9518–9526.
Qiu, Q., Hill E. M., Barbot S., Hubbard J., Feng W., Lindsey E. O., et al. (2016). The Mechanism of Partial rupture of a Locked Megathrust: The Role of Fault Morphology. Geology.
Hu, Y., Bürgmann R., Banerjee P., Feng L., Hill E. M., Ito T., et al. (2016). Asthenosphere rheology inferred from observations of the 2012 Indian Ocean earthquake. Nature.
Tsang, L. L. H., Hill E. M., Barbot S., Qiu Q., Feng L., Hermawan I., et al. (2016). Afterslip following the 2007 M-w 8.4 Bengkulu earthquake in Sumatra loaded the 2010 M-w 7.8 Mentawai tsunami earthquake rupture zone. Journal of Geophysical Research: Solid Earth. 121(12), 9034-9049.
Wang, L., Davis J. L., Hill E. M., & Tamisiea M. E. (2016). Stochastic filtering for determining gravity variations for decade-long time series of GRACE gravity. Journal of Geophysical Research. 121(4), 2915–2931.
Bradley, K. E., Feng L., Hill E. M., & Natawidjaja D. H. (2016). Sumatran Fault slip rates imply a rigid forearc and shortening of Indian Ocean lithosphere. Journal of Geophysical Research: Solid Earth.
Steckler, M. S., Mondal D R., Akhter S. Humayun, Seeber L., Feng L., Gale J., et al. (2016). Locked and loading megathrust linked to active subduction beneath the Indo-Burman Ranges. Nature Geoscience. 9(8),
Hubbard, J., Barbot S., Hill E. M., & Tapponnier P. (2015). Coseismic slip on shallow décollement megathrusts: implications for seismic and tsunami hazard. Earth-Science Reviews. 141(February), 45-55.
Hill, E. M., Yue H., Barbot S., Lay T., Tapponnier P., Hermawan I., et al. (2015). The 2012 Mw 8.6 Wharton Basin sequence: A cascade of great earthquakes generated by near‐orthogonal, young, oceanic‐mantle faults. Journal of Geophysical Research: Solid Earth. 120(5), 3723–3747.
Meltzner, A. J., Sieh K. E., Chiang H-W., Wu C-C., Tsang L. L. H., Shen C-C., et al. (2015). Time-varying interseismic strain rates and similar seismic ruptures on the Nias–Simeulue patch of the Sunda megathrust. Quaternary Science Reviews. 258–281.
Melgar, D., Crowell B. W., Geng J., Allen R. M., Bock Y., Riquelme S., et al. (2015). Earthquake Magnitude Calculation without Saturation and the Scaling of Peak Ground Displacement from Regional High-Rate GPS Recordings. Geophysical Research Letters.
Yue, H., Lay T., Li L., Yamazaki Y., Cheung K F., Rivera L., et al. (2015). Validation of linearity for tsunami waves in joint inversion of kinematic rupture models: Application to the 2010 Mentawai Mw 7.8 tsunami earthquake. Journal of Geophysical Research: Solid Earth. 120(3),
Melgar, D., Crowell B. W., Geng J., Allen R. M., Bock Y., Riquelme S., et al. (2015). Earthquake magnitude calculation without saturation from the scaling of peak ground displacement. Geophysical Research Letters. 42(13), 5197-5205.
Feng, L., Hill E. M., Banerjee P., Hermawan I., Tsang L. L. H., Natawidjaja D. H., et al. (2015). A unified GPS-based earthquake catalog for the Sumatran plate boundary between 2002 and 2013. Journal of Geophysical Research: Solid Earth. 120(5), 3566-3598.
Tsang, L. L. H., Meltzner A. J., Hill E. M., Freymueller J. T., & Sieh K. E. (2015). A paleogeodetic record of variable interseismic rates and megathrust coupling at Simeulue Island, Sumatra. Geophysical Research Letters. 42(24),
Feng, L., Hill E. M., Elósegui P., Qiu Q., Hermawan I., Banerjee P., et al. (2015). Hunt for slow slip events along the Sumatran subduction zone in a decade of continuous GPS data. Journal of Geophysical Research-Solid Earth. 120(12), 8623-8632.
Tsang, L. L. H., Meltzner A. J., Philibosian B., Hill E. M., Freymueller J. T., & Sieh K. E. (2015). A 15 year slow-slip event on the Sunda megathrust offshore Sumatra. Geophysical Research Letters. 42(16), 6630-6638.
Yue, H., Lay T., Rivera L., Bai Y., Yamazaki Y., Cheung K F., et al. (2014). Rupture process of the 2010 Mw 7.8 Mentawai tsunami earthquake from joint inversion of near-field hr-GPS and teleseismic body wave recordings constrained by tsunami observations. Journal of Geophysical Research: Solid Earth. 119(7), 5574–5593.
Hill, E. M., Borrero J. C., Huang Z., Qiu Q., Banerjee P., Natawidjaja D. H., et al. (2012). The 2010 Mw 7.8 Mentawai earthquake: Very shallow source of a rare tsunami earthquake determined from tsunami field survey and near-field GPS data. Journal of Geophysical Research.

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Philibosian, B., Sieh K. E., Natawidjaja D. H., Chiang H-W., Shen C-C., Suwargadi B. W., et al. (2012). An ancient shallow slip event on the Mentawai segment of the Sunda megathrust, Sumatra. Journal of Geophysical Research. 117,

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Vinogradova, N. T., Ponte R. M., Tamisiea M. E., Hill E. M., & Davis J. L. (2011). Self-attraction and loading effects on ocean mass redistribution at monthly and longer time scales. Journal of Geophysical Research. 116,

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Hill, E. M., Davis J. L., Tamisiea M. E., Ponte R. M., & Vinogradova N. T. (2011). Using a spatially realistic load model to assess impacts of Alaskan glacier ice loss on sea level. Journal of Geophysical Research. 116,

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Hill, E. M., Davis J. L., Tamisiea M. E., & Lidberg M. (2010). Combination of geodetic observations and models for glacial isostatic adjustment fields in Fennoscandia. Journal of Geophysical Research-Solid Earth. 115,

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Tamisiea, M. E., Hill E. M., Ponte R. M., Davis J. L., Velicogna I., & Vinogradova N. T. (2010). Impact of self-attraction and loading on the annual cycle in sea level. Journal of Geophysical Research-Oceans. 115,

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Vinogradova, N. T., Ponte R. M., Tamisiea M. E., Davis J. L., & Hill E. M. (2010). Effects of self-attraction and loading on annual variations of ocean bottom pressure. Journal of Geophysical Research: Oceans. 115, C06025.

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Hoffman, R. N., Dailey P., Hopsch S., Ponte R. M., Quinn K. J., & Hill E. M. (2010). An assessment of increased storm surge risk to property due to sea level rise in the first half of the 21st century. Weather, Climate, and Society. 2, 271-293.
Hill, E. M., Davis J. L., Elósegui P., Wernicke B. P., Malikowski E., & Niemi N. A. (2009). Characterization of site-specific GPS errors using a short-baseline network of braced monuments at Yucca Mountain, southern Nevada. Journal of Geophysical Research: Solid Earth. 114, B11402.

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Nilsson, T., Davis J. L., & Hill E. M. (2009). Using ground-based GPS to characterize atmospheric turbulence. Geophysical Research Letters. 36,
Burbey, T. J., Warner S. M., Blewitt G., Bell J. W., & Hill E. M. (2006). Three-dimensional deformation and strain induced by municipal pumping, part 1: Analysis of field data. Journal of Hydrology. 319, 123-142.

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Hill, E. M., & Blewitt G. (2006). Testing for fault activity at Yucca Mountain, Nevada, using independent GPS results from the BARGEN network. Geophysical Research Letters. 33,

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Hill, E. M., Pollitz F. F., & Newhall C. G. (2002). Earthquake-volcano interactions. Physics Today. 55, 41-47.

Publications:

Salman, R., Lindsey E. O., Lin Y-N N., Feng L., Bradley K., & Hill E. M. (2018). Investigating active deformation of the northern Sumatran Fault using InSAR data. European Geosciences Union.
Salman, R., Hill E. M., Wei S., Lindsey E. O., Bradley K., Muzli, et al. (2017). Analysis of the 2016 Aceh Mw 6.5 strike-slip earthquake using joint inversion of InSAR and tele seismic data. Asia Oceania Geosciences Society 14th Annual Meeting.
Qiu, Q., Moore J. D. P., Barbot S., Feng L., Hill E. M., & Ezer T. (2016). Transient flow in the mantle wedge in the last decade following great earthquakes in the Sumatran subduction zone. American Geophysical Union Fall Meeting.
Salman, R., Hill E. M., Feng L., Wei S., Barbot S., Lindsey E. O., et al. (2016). The 2008 Mw 7.2 North Pagai earthquake sequence: Partial rupture of a fully locked Mentawai patch. American Geophysical Union Fall Meeting.
Salman, R., Hill E. M., Feng L., Wei S., Barbot S., Lindsey E. O., et al. (2016). The 2008 Mw 7.2 North Pagai earthquake sequence: Partial rupture of a fully locked Mentawai patch. 6th International Symposium on Earth Hazard and Disaster Mitigation.
Salman, R., Hill E. M., Barbot S., Feng L., Banerjee P., Hermawan I., et al. (2014). The 2008 Mw 7.2 North Pagai earthquake sequence and its relationship to ruptured and unruptured parts of the Mentawai patch. American Geophysical Union Fall Meeting.
McCaughey, J. W., Lubis A M., Sinaga B., Huang Z., Yao Y., Hill E. M., et al. (2012). Partnerships for outreach: earthquake and tsunami hazard in West Sumatra. AOGS-AGU Joint Assembly.
Yao, Y., Huang Z., Lubis A M., Hill E. M., McCaughey J. W., & Li L. (2012). Numerical simulations of tsunami inundation for the Mentawai Islands, Indonesia - a scenario study using high resolution topographic data. AOGS-AGU Joint Assembly.
McCaughey, J. W., Huang Z., Yu Y., Hill E. M., & Eriksson S. (2012). Earthquake and tsunami hazard in West Sumatra: integrating science, outreach, and local stakeholder needs. EGU General Assembly.
McCaughey, J. W., Lubis A M., Qiu Q., Huang Z., Hill E. M., & Natawidjaja D. H. (2011). User driven science: earthquake and tsunami scenarios for Mentawai Islands, western Sumatra. AGU Fall Meeting.

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