Scott Nooner

Adjunct Associate Research Scientist
Lamont-Doherty Earth Observatory
Marine Geology and Geophysics

Research Areas

Mid-Ocean Ridges and Rifting

Studying how mid-ocean ridge systems form and evolve is important for understanding plate tectonics, as well as for understanding the interplay between the formation of oceanic crust and hydrothermal vent systems. I am interested in using geophysical techniques to study the mid-ocean ridge systems. I am involved in studies using seafloor gravity, compliance, and sea bottom water pressure measurements. Seafloor gravity measurements can help constrain subsurface density anomalies. Compliance is the measure of how the seafloor moves in response to ocean waves, a quantity that is directly related to the shear modulus of the rock. Therefore this technique is good at detecting thin layers of melt material, which have low shear strength. Another technique I use for these studies is seafloor geodesy. To do this, sea bottom water pressure measurements are used as a proxy for seafloor height. Changes in seafloor height can be caused by subsurface movement of magma, eruptions, or tectonics.

Geologic Storage of CO2

Increasing amounts of anthropogenic CO2 are being produced each year, contributing to global warming. I’ve been involved in the Sleipner Project, the world’s first large scale environmental storage effort. Sleipner is a natural gas field in the North Sea where excess CO2 is being separated from the produced natural gas and injected into a saline aquifer about 1000 m below the seafloor at a rate of about 1 Mton per year. I have been involved in combining the results of 4-D seismic surveys and time-lapse gravity surveys to constrain the density of the in situ CO2.

Crustal Deformation Studies

Studies involving deformation of the Earth’s crust are important in determining properties of the crust and mantle. An example is monsoonal flooding in Bangladesh, which causes annual fluctuation in the height of the crust.
Mid-Ocean Ridges and Rifting


 

Education
List of degrees from highest to lowest:
Ph.D. Geophysics
Scripps Institution of Oceanography, UCSD
2005
M.S. Physics
Texas A&M University
1999
B.A. Physics/Art
Hendrix College
1996
Honors & Awards: 
Best paper in "Geophysics" 2003
Referenced in the Following News Items: 
Selected Publications: 
Constraints on the in situ density of CO2 within the Utsira formation from time-lapse seafloor gravity measurements, Nooner, S. L.; Eiken, O.; Hermanrud, C.; Sasagawa, G. S.; Stenvold, T.; Zumberge, M. A. , International Journal of Greenhouse Gas Control, Volume 1, p.198-214, (2007)

Vertical deformation monitoring at Axial Seamount since its 1998 eruption using deep-sea pressure sensors, Chadwick, W. W.; Nooner, S. L.; Zumberge, M. A.; Embley, R. W.; Fox, C. G. , Journal of Volcanology and Geothermal Research, Feb 1, Volume 150, Issue 1-3, p.313-327, (2006), DOI 10.1016/j.jvolgeores.2005.07.006

Structure of oceanic core complexes: Constraints from seafloor gravity measurements made at the Atlantis Massif, Nooner, S. L.; Sasagawa, G. S.; Blackman, D. K.; Zumberge, M. A. , Geophysical Research Letters, Apr 30, Volume 30, Issue 8, p.-, (2003), Doi 10.1029/2003gl017126

An optical fiber infrasound sensor: A new lower limit on atmospheric pressure noise between 1 and 10 Hz, Zumberge, M. A.; Berger, J.; Hedlin, M. A. H.; Husmann, E.; Nooner, S.; Hilt, R.; Widmer-Schnidrig, R. , Journal of the Acoustical Society of America, May, Volume 113, Issue 5, p.2474-2479, (2003), Doi 10.1121/1.1566978