2019
|
| 51. | Gustafson, Chloe; Key, Kerry; Evans, Rob L Aquifer systems extending far offshore on the U.S. Atlantic margin Journal Article Scientific Reports, 9 (1), 2019. Abstract | Links @article{freshwaterSR,
title = {Aquifer systems extending far offshore on the U.S. Atlantic margin},
author = {Chloe Gustafson and Kerry Key and Rob L Evans },
url = {https://doi.org/10.1038/s41598-019-44611-7},
doi = {10.1038/s41598-019-44611-7},
year = {2019},
date = {2019-06-19},
journal = {Scientific Reports},
volume = {9},
number = {1},
abstract = {Low-salinity submarine groundwater contained within continental shelves is a global phenomenon. Mechanisms for emplacing offshore groundwater include glacial processes that drove water into exposed continental shelves during sea-level low stands and active connections to onshore hydrologic systems. While low-salinity groundwater is thought to be abundant, its distribution and volume worldwide is poorly understood due to the limited number of observations. Here we image laterally continuous aquifers extending 90 km offshore New Jersey and Martha’s Vineyard, Massachusetts, on the U.S. Atlantic margin using new shallow water electromagnetic geophysical methods. Our data provide more continuous constraints on offshore groundwater than previous models and present evidence for a connection between the modern onshore hydrologic system and offshore aquifers. We identify clinoforms as a previously unknown structural control on the lateral extent of low-salinity groundwater and potentially a control on where low-salinity water rises into the seafloor. Our data suggest a continuous submarine aquifer system spans at least 350 km of the U.S. Atlantic coast and contains about 2800 km3 of low-salinity groundwater. Our findings can be used to improve models of past glacial, eustatic, tectonic, and geomorphic processes on continental shelves and provide insight into shelf geochemistry, biogeochemical cycles, and the deep biosphere.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Low-salinity submarine groundwater contained within continental shelves is a global phenomenon. Mechanisms for emplacing offshore groundwater include glacial processes that drove water into exposed continental shelves during sea-level low stands and active connections to onshore hydrologic systems. While low-salinity groundwater is thought to be abundant, its distribution and volume worldwide is poorly understood due to the limited number of observations. Here we image laterally continuous aquifers extending 90 km offshore New Jersey and Martha’s Vineyard, Massachusetts, on the U.S. Atlantic margin using new shallow water electromagnetic geophysical methods. Our data provide more continuous constraints on offshore groundwater than previous models and present evidence for a connection between the modern onshore hydrologic system and offshore aquifers. We identify clinoforms as a previously unknown structural control on the lateral extent of low-salinity groundwater and potentially a control on where low-salinity water rises into the seafloor. Our data suggest a continuous submarine aquifer system spans at least 350 km of the U.S. Atlantic coast and contains about 2800 km3 of low-salinity groundwater. Our findings can be used to improve models of past glacial, eustatic, tectonic, and geomorphic processes on continental shelves and provide insight into shelf geochemistry, biogeochemical cycles, and the deep biosphere. |
| 50. | Blatter, Daniel; Key, Kerry; Ray, Anandaroop; Gustafson, Chloe; Evans, Rob Bayesian Joint Inversion of Controlled Source Electromagnetic and Magnetotelluric Data to Image Freshwater Aquifer Offshore New Jersey Journal Article Geophysical Journal International, 2019, ISSN: 0956-540X. Abstract | Links @article{10.1093/gji/ggz253,
title = {Bayesian Joint Inversion of Controlled Source Electromagnetic and Magnetotelluric Data to Image Freshwater Aquifer Offshore New Jersey},
author = {Daniel Blatter and Kerry Key and Anandaroop Ray and Chloe Gustafson and Rob Evans},
url = {https://doi.org/10.1093/gji/ggz253},
doi = {10.1093/gji/ggz253},
issn = {0956-540X},
year = {2019},
date = {2019-01-01},
journal = {Geophysical Journal International},
abstract = {Joint inversion of multiple electromagnetic data sets, such as controlled source electromagnetic and magnetotelluric data, has the potential to significantly reduce uncertainty in the inverted electrical resistivity when the two data sets contain complementary information about the subsurface. However, evaluating quantitatively the model uncertainty reduction is made difficult by the fact that conventional inversion methods – using gradients and model regularization – typically produce just one model, with no associated estimate of model parameter uncertainty. Bayesian inverse methods can provide quantitative estimates of inverted model parameter uncertainty by generating an ensemble of models, sampled proportional to data fit. The resulting posterior distribution represents a combination of a priori assumptions about the model parameters and information contained in field data. Bayesian inversion is therefore able to quantify the impact of jointly inverting multiple data sets by using the statistical information contained in the posterior distribution. We illustrate, for synthetic data generated from a simple 1D model, the shape of parameter space compatible with controlled source electromagnetic and magnetotelluric data, separately and jointly. We also demonstrate that when data sets contain complementary information about the model, the region of parameter space compatible with the joint data set is less than or equal to the intersection of the regions compatible with the individual data sets. We adapt a trans-dimensional Markov chain Monte Carlo algorithm for jointly inverting multiple electromagnetic data sets for 1D Earth models and apply it to surface-towed controlled source electromagnetic and magnetotelluric data collected offshore New Jersey, USA, to evaluate the extent of a low salinity aquifer within the continental shelf. Our inversion results identify a region of high resistivity of varying depth and thickness in the upper 500 m of the continental shelf, corroborating results from a previous study that used regularized, gradient-based inversion methods. We evaluate the joint model parameter uncertainty in comparison to the uncertainty obtained from the individual data sets and demonstrate quantitatively that joint inversion offers reduced uncertainty. In addition, we show how the Bayesian model ensemble can subsequently be used to derive uncertainty estimates of pore water salinity within the low salinity aquifer.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Joint inversion of multiple electromagnetic data sets, such as controlled source electromagnetic and magnetotelluric data, has the potential to significantly reduce uncertainty in the inverted electrical resistivity when the two data sets contain complementary information about the subsurface. However, evaluating quantitatively the model uncertainty reduction is made difficult by the fact that conventional inversion methods – using gradients and model regularization – typically produce just one model, with no associated estimate of model parameter uncertainty. Bayesian inverse methods can provide quantitative estimates of inverted model parameter uncertainty by generating an ensemble of models, sampled proportional to data fit. The resulting posterior distribution represents a combination of a priori assumptions about the model parameters and information contained in field data. Bayesian inversion is therefore able to quantify the impact of jointly inverting multiple data sets by using the statistical information contained in the posterior distribution. We illustrate, for synthetic data generated from a simple 1D model, the shape of parameter space compatible with controlled source electromagnetic and magnetotelluric data, separately and jointly. We also demonstrate that when data sets contain complementary information about the model, the region of parameter space compatible with the joint data set is less than or equal to the intersection of the regions compatible with the individual data sets. We adapt a trans-dimensional Markov chain Monte Carlo algorithm for jointly inverting multiple electromagnetic data sets for 1D Earth models and apply it to surface-towed controlled source electromagnetic and magnetotelluric data collected offshore New Jersey, USA, to evaluate the extent of a low salinity aquifer within the continental shelf. Our inversion results identify a region of high resistivity of varying depth and thickness in the upper 500 m of the continental shelf, corroborating results from a previous study that used regularized, gradient-based inversion methods. We evaluate the joint model parameter uncertainty in comparison to the uncertainty obtained from the individual data sets and demonstrate quantitatively that joint inversion offers reduced uncertainty. In addition, we show how the Bayesian model ensemble can subsequently be used to derive uncertainty estimates of pore water salinity within the low salinity aquifer. |
| 49. | Werthmüller, Dieter; Key, Kerry; Slob, Evert C A tool for designing digital filters for the Hankel and Fourier transforms in potential, diffusive, and wavefield modeling Journal Article Geophysics, 84 (2), pp. F47-F56, 2019. Abstract | Links @article{DWfilters,
title = {A tool for designing digital filters for the Hankel and Fourier transforms in potential, diffusive, and wavefield modeling},
author = {Dieter Werthmüller and Kerry Key and Evert C. Slob},
url = {https://doi.org/10.1190/geo2018-0069.1},
doi = {10.1190/geo2018-0069.1},
year = {2019},
date = {2019-01-01},
journal = {Geophysics},
volume = {84},
number = {2},
pages = {F47-F56},
abstract = {ABSTRACTThe open-source code fdesign makes it possible to design digital linear filters for the Hankel and Fourier transforms used in potential, diffusive, and wavefield modeling. Digital filters can be derived for any electromagnetic (EM) method, such as methods in the diffusive limits (direct current, controlled-source EM [CSEM]) as well as methods using higher frequency content (ground-penetrating radar [GPR], acoustic and elastic wavefields). The direct matrix inversion method is used for the derivation of the filter values, and a brute-force minimization search is carried out over the defined spacing and shifting values of the filter basis. Included or user-provided theoretical transform pairs are used for the inversion. Alternatively, one can provide layered subsurface models that will be computed with a precise quadrature method using the EM modeler empymod to generate numerical transform pairs. The comparison of the presented 201 pt filter with previously presented filters indicates that it performs better for some standard CSEM cases. The derivation of a longer 2001 pt filter for a GPR example with a 250 MHz center frequency proves that the filter method works not only for diffusive EM fields but also for wave phenomena. The presented algorithm provides a tool to create problem specific digital filters. Such purpose-built filters can be made shorter and can speed up consecutive potential, diffusive, and wavefield inversions.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
ABSTRACTThe open-source code fdesign makes it possible to design digital linear filters for the Hankel and Fourier transforms used in potential, diffusive, and wavefield modeling. Digital filters can be derived for any electromagnetic (EM) method, such as methods in the diffusive limits (direct current, controlled-source EM [CSEM]) as well as methods using higher frequency content (ground-penetrating radar [GPR], acoustic and elastic wavefields). The direct matrix inversion method is used for the derivation of the filter values, and a brute-force minimization search is carried out over the defined spacing and shifting values of the filter basis. Included or user-provided theoretical transform pairs are used for the inversion. Alternatively, one can provide layered subsurface models that will be computed with a precise quadrature method using the EM modeler empymod to generate numerical transform pairs. The comparison of the presented 201 pt filter with previously presented filters indicates that it performs better for some standard CSEM cases. The derivation of a longer 2001 pt filter for a GPR example with a 250 MHz center frequency proves that the filter method works not only for diffusive EM fields but also for wave phenomena. The presented algorithm provides a tool to create problem specific digital filters. Such purpose-built filters can be made shorter and can speed up consecutive potential, diffusive, and wavefield inversions. |
2018
|
| 48. | Naif, Samer An upper bound on the electrical conductivity of hydrated oceanic mantle at the onset of dehydration melting Journal Article Earth And Planetary Science Letters, 482 , pp. 357–366, 2018. Links @article{Naif:2018hk,
title = {An upper bound on the electrical conductivity of hydrated oceanic mantle at the onset of dehydration melting},
author = {Samer Naif},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/09/Naif-EPSL-2018.pdf},
year = {2018},
date = {2018-01-01},
journal = {Earth And Planetary Science Letters},
volume = {482},
pages = {357--366},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 47. | Du, Zhijun; Key, Kerry Case study: North Sea heavy oil reservoir characterization from integrated analysis of towed-streamer EM and dual-sensor seismic data Journal Article The Leading Edge, 37 (8), pp. 608–615, 2018. Links @article{Du:2018kn,
title = {Case study: North Sea heavy oil reservoir characterization from integrated analysis of towed-streamer EM and dual-sensor seismic data},
author = {Zhijun Du and Kerry Key},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/09/Du-and-Key-Leading-Edge-2018.pdf},
year = {2018},
date = {2018-01-01},
journal = {The Leading Edge},
volume = {37},
number = {8},
pages = {608--615},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 46. | Blatter, Daniel; Key, Kerry; Ray, Anandaroop; Foley, Neil; Tulaczyk, Slawek; Auken, Esben Trans-dimensional Bayesian inversion of airborne transient EM data from Taylor Glacier, Antarctica Journal Article Geophysical Journal International, 214 (3), pp. 1919–1936, 2018. Links @article{Blatter:2018bo,
title = {Trans-dimensional Bayesian inversion of airborne transient EM data from Taylor Glacier, Antarctica},
author = {Daniel Blatter and Kerry Key and Anandaroop Ray and Neil Foley and Slawek Tulaczyk and Esben Auken},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/09/GJI-Blatter-et-al-2018.pdf},
year = {2018},
date = {2018-01-01},
journal = {Geophysical Journal International},
volume = {214},
number = {3},
pages = {1919--1936},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 45. | Barak, Ohad; Key, Kerry; Constable, Steven; Ronen, Shuki Recording active-seismic ground rotations using induction-coil magnetometers Journal Article Geophysics, 83 (5), pp. P19–P42, 2018. Links @article{Barak:2018fg,
title = {Recording active-seismic ground rotations using induction-coil magnetometers},
author = {Ohad Barak and Kerry Key and Steven Constable and Shuki Ronen},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/09/Barak-et-al-Geophysics-2018.pdf},
year = {2018},
date = {2018-01-01},
journal = {Geophysics},
volume = {83},
number = {5},
pages = {P19--P42},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2017
|
| 44. | Key, Kerry; Siegfried, Matthew R The feasibility of imaging subglacial hydrology beneath ice streams with ground-based electromagnetics Journal Article Journal of Glaciology, 331 , pp. 1–17, 2017. Links @article{Anonymous:2017eh,
title = {The feasibility of imaging subglacial hydrology beneath ice streams with ground-based electromagnetics},
author = {Kerry Key and Matthew R Siegfried},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Key-and-Siegfried-2017.pdf},
year = {2017},
date = {2017-01-01},
journal = {Journal of Glaciology},
volume = {331},
pages = {1--17},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 43. | Siegert, Martin J; Kulessa, Bernd; Bougamont, Marion; Christoffersen, Poul; Key, Kerry; Andersen, Kristoffer R; Booth, Adam D; Smith, Andrew M Antarctic subglacial groundwater: a concept paper on its measurement and potential influence on ice flow Journal Article Geological Society, London, Special Publications, pp. SP461.8–17, 2017. Links @article{Anonymous:2017il,
title = {Antarctic subglacial groundwater: a concept paper on its measurement and potential influence on ice flow},
author = {Martin J Siegert and Bernd Kulessa and Marion Bougamont and Poul Christoffersen and Kerry Key and Kristoffer R Andersen and Adam D Booth and Andrew M Smith},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/SP461.8.full_reduced.pdf
},
year = {2017},
date = {2017-01-01},
journal = {Geological Society, London, Special Publications},
pages = {SP461.8--17},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 42. | Attias, Eric; Evans, Rob L; Naif, Samer; Elsenbeck, Jimmy; Key, Kerry Conductivity structure of the lithosphere-asthenosphere boundary beneath the eastern North American margin Journal Article Geochemistry Geophysics Geosystems, 18 (2), pp. 676–696, 2017. Links @article{Attias:2017fk,
title = {Conductivity structure of the lithosphere-asthenosphere boundary beneath the eastern North American margin},
author = {Eric Attias and Rob L Evans and Samer Naif and Jimmy Elsenbeck and Kerry Key},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Attias-et-al-2017.pdf},
year = {2017},
date = {2017-01-01},
journal = {Geochemistry Geophysics Geosystems},
volume = {18},
number = {2},
pages = {676--696},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2016
|
| 41. | Key, Kerry MARE2DEM: a 2-D inversion code for controlled-source electromagnetic and magnetotelluric data Journal Article Geophysical Journal International, 207 (1), pp. 571–588, 2016. Links @article{Key:2016eq,
title = {MARE2DEM: a 2-D inversion code for controlled-source electromagnetic and magnetotelluric data},
author = {Kerry Key},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/02/GJI-Key-2016.pdf},
year = {2016},
date = {2016-01-01},
journal = {Geophysical Journal International},
volume = {207},
number = {1},
pages = {571--588},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 40. | Naif, Samer; Key, Kerry; Constable, Steven; Evans, Rob L Porosity and fluid budget of a water-rich megathrust revealed with electromagnetic data at the Middle America Trench Journal Article Geochemistry Geophysics Geosystems, 17 (11), pp. 4495–4516, 2016. Links @article{Naif:2016ea,
title = {Porosity and fluid budget of a water-rich megathrust revealed with electromagnetic data at the Middle America Trench},
author = {Samer Naif and Kerry Key and Steven Constable and Rob L Evans},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/G3-Naif-2016.pdf},
year = {2016},
date = {2016-01-01},
journal = {Geochemistry Geophysics Geosystems},
volume = {17},
number = {11},
pages = {4495--4516},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2015
|
| 39. | Naif, Samer; Key, Kerry; Constable, Steven; Evans, Rob L Water-rich bending faults at the Middle America Trench Journal Article Geochemistry Geophysics Geosystems, 16 (8), pp. 2582–2597, 2015. Links @article{Naif:2015ba,
title = {Water-rich bending faults at the Middle America Trench},
author = {Samer Naif and Kerry Key and Steven Constable and Rob L Evans},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/G3-Naif-2015.pdf},
year = {2015},
date = {2015-01-01},
journal = {Geochemistry Geophysics Geosystems},
volume = {16},
number = {8},
pages = {2582--2597},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 38. | Constable, Steven; Orange, Arnold; Key, Kerry And the geophysicist replied: "Which model do you want?" Journal Article Geophysics, 80 (3), pp. E197–E212, 2015. Links @article{Constable:2015it,
title = {And the geophysicist replied: "Which model do you want?"},
author = {Steven Constable and Arnold Orange and Kerry Key},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophysics-Constable-2015.pdf},
year = {2015},
date = {2015-01-01},
journal = {Geophysics},
volume = {80},
number = {3},
pages = {E197--E212},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 37. | Wheelock, Brent; Constable, Steven; Key, Kerry The advantages of logarithmically scaled data for electromagnetic inversion Journal Article Geophysical Journal International, 201 (3), pp. 1765–1780, 2015. Links @article{Wheelock:2015ha,
title = {The advantages of logarithmically scaled data for electromagnetic inversion},
author = {Brent Wheelock and Steven Constable and Kerry Key},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/02/Wheelock-et-al-2015.pdf},
year = {2015},
date = {2015-01-01},
journal = {Geophysical Journal International},
volume = {201},
number = {3},
pages = {1765--1780},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 36. | Hoversten, Michael G; Myer, David; Key, Kerry; Alumbaugh, David; Hermann, Oliver; Hobbet, Randall Field test of sub-basalt hydrocarbon exploration with marine controlled source electromagnetic and magnetotelluric data Journal Article Geophysical Prospecting, 63 , pp. 1284–1310, 2015. Links @article{Hoversten:2015ka,
title = {Field test of sub-basalt hydrocarbon exploration with marine controlled source electromagnetic and magnetotelluric data},
author = {G Michael Hoversten and David Myer and Kerry Key and David Alumbaugh and Oliver Hermann and Randall Hobbet},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/02/GP-Hoversten-et-al-2015.pdf},
year = {2015},
date = {2015-01-01},
journal = {Geophysical Prospecting},
volume = {63},
pages = {1284--1310},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 35. | Myer, David; Key, Kerry; Constable, Steven Marine CSEM of the Scarborough gas field, Part 2: 2D inversion Journal Article Geophysics, 80 (3), pp. E187–E196, 2015. Links @article{Myer:2015bx,
title = {Marine CSEM of the Scarborough gas field, Part 2: 2D inversion},
author = {David Myer and Kerry Key and Steven Constable},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophysics-Myer-2015.pdf},
year = {2015},
date = {2015-01-01},
journal = {Geophysics},
volume = {80},
number = {3},
pages = {E187--E196},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2014
|
| 34. | Ray, Anandaroop; Key, Kerry; Bodin, Thomas; Myer, David; Constable, Steven Bayesian inversion of marine CSEM data from the Scarborough gas field using a transdimensional 2-D parametrization Journal Article Geophysical Journal International, 199 (3), pp. 1847–1860, 2014. Links @article{Ray:2014jq,
title = {Bayesian inversion of marine CSEM data from the Scarborough gas field using a transdimensional 2-D parametrization},
author = {Anandaroop Ray and Kerry Key and Thomas Bodin and David Myer and Steven Constable},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/GJI-Ray-2014.pdf},
year = {2014},
date = {2014-09-01},
journal = {Geophysical Journal International},
volume = {199},
number = {3},
pages = {1847--1860},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 33. | Trainor-Guitton, Whitney J; Hoversten, Michael G; Ramirez, Abelardo; Roberts, Jeffery; Juliusson, Egill; Key, Kerry; Mellors, Robert The value of spatial information for determining well placement: A geothermal example Journal Article Geophysics, 79 (5), pp. W27–W41, 2014. Links @article{TrainorGuitton:2014ir,
title = {The value of spatial information for determining well placement: A geothermal example},
author = {Whitney J Trainor-Guitton and Michael G Hoversten and Abelardo Ramirez and Jeffery Roberts and Egill Juliusson and Kerry Key and Robert Mellors},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/02/Geophysics-Trainor-Guitton-et-al-2014.pdf},
year = {2014},
date = {2014-08-01},
journal = {Geophysics},
volume = {79},
number = {5},
pages = {W27--W41},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2013
|
| 32. | Myer, David; Constable, Steven; Key, Kerry Magnetotelluric evidence for layered mafic intrusions beneath the Vøring and Exmouth rifted margins Journal Article Physics Of The Earth And Planetary Interiors, 220 (C), pp. 1–10, 2013. Links @article{Myer:2013jj,
title = {Magnetotelluric evidence for layered mafic intrusions beneath the Vøring and Exmouth rifted margins},
author = {David Myer and Steven Constable and Kerry Key},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Physics-of-the-Earth-and-Planetary-Interiors-2013-Myer.pdf},
year = {2013},
date = {2013-07-01},
journal = {Physics Of The Earth And Planetary Interiors},
volume = {220},
number = {C},
pages = {1--10},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 31. | Key, Kerry; Constable, Steven; Liu, Lijun; Pommier, Anne Electrical image of passive mantle upwelling beneath the northern East Pacific Rise Journal Article Nature, 495 (7442), pp. 499–502, 2013. Links @article{Key:2013gl,
title = {Electrical image of passive mantle upwelling beneath the northern East Pacific Rise},
author = {Kerry Key and Steven Constable and Lijun Liu and Anne Pommier},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Nature-2013-Key.pdf},
year = {2013},
date = {2013-03-01},
journal = {Nature},
volume = {495},
number = {7442},
pages = {499--502},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 30. | Naif, Samer; Key, Kerry; Constable, Steven; Evans, Rob L Melt-rich channel observed at the lithosphere-asthenosphere boundary Journal Article Nature, 495 (7441), pp. 356–359, 2013. Links @article{Naif:2013gh,
title = {Melt-rich channel observed at the lithosphere-asthenosphere boundary},
author = {Samer Naif and Kerry Key and Steven Constable and Rob L Evans},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Nature-2013-Naif.pdf},
year = {2013},
date = {2013-03-01},
journal = {Nature},
volume = {495},
number = {7441},
pages = {356--359},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 29. | Ray, Anandaroop; Alumbaugh, David L; Hoversten, Michael G; Key, Kerry Robust and accelerated Bayesian inversion of marine controlled-source electromagnetic data using parallel tempering Journal Article Geophysics, 78 (6), pp. E271–E280, 2013. Links @article{Ray:2013gz,
title = {Robust and accelerated Bayesian inversion of marine controlled-source electromagnetic data using parallel tempering},
author = {Anandaroop Ray and David L Alumbaugh and Michael G Hoversten and Kerry Key},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophysics-2013-Ray.pdf},
year = {2013},
date = {2013-01-01},
journal = {Geophysics},
volume = {78},
number = {6},
pages = {E271--E280},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 28. | Pommier, Anne; Evans, Rob L; Key, Kerry; Tyburczy, James A; Mackwell, Stephen; Elsenbeck, Jimmy Prediction of silicate melt viscosity from electrical conductivity: A model and its geophysical implications Journal Article Geochemistry Geophysics Geosystems, 14 (6), pp. 1685–1692, 2013. Links @article{Pommier:2013dc,
title = {Prediction of silicate melt viscosity from electrical conductivity: A model and its geophysical implications},
author = {Anne Pommier and Rob L Evans and Kerry Key and James A Tyburczy and Stephen Mackwell and Jimmy Elsenbeck},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geochem-Geophy-Geosy-2013-Pommier.pdf},
year = {2013},
date = {2013-01-01},
journal = {Geochemistry Geophysics Geosystems},
volume = {14},
number = {6},
pages = {1685--1692},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 27. | Connell, Dylan; Key, Kerry A numerical comparison of time and frequency-domain marine electromagnetic methods for hydrocarbon exploration in shallow water Journal Article Geophysical Prospecting, 61 , pp. 187–199, 2013. Links @article{Connell:2012hs,
title = {A numerical comparison of time and frequency-domain marine electromagnetic methods for hydrocarbon exploration in shallow water},
author = {Dylan Connell and Kerry Key},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophys.-Prosp.-2013-Connell.pdf},
year = {2013},
date = {2013-01-01},
journal = {Geophysical Prospecting},
volume = {61},
pages = {187--199},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2012
|
| 26. | Key, Kerry; Constable, Steven; Matsuno, Tetsuo; Evans, Rob L; Myer, David Electromagnetic detection of plate hydration due to bending faults at the Middle America Trench Journal Article Earth And Planetary Science Letters, 351-352 , pp. 45–53, 2012. Links @article{Key:2012ei,
title = {Electromagnetic detection of plate hydration due to bending faults at the Middle America Trench},
author = {Kerry Key and Steven Constable and Tetsuo Matsuno and Rob L Evans and David Myer},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Earth-Planet-Sc-Lett-2012-Key.pdf},
year = {2012},
date = {2012-10-01},
journal = {Earth And Planetary Science Letters},
volume = {351-352},
pages = {45--53},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 25. | Selway, Kate; Thiel, Stephan; Key, Kerry A simple 2-D explanation for negative phases in TE magnetotelluric data Journal Article Geophysical Journal International, 188 , pp. 945–958, 2012. Links @article{Selway:2012jy,
title = {A simple 2-D explanation for negative phases in TE magnetotelluric data},
author = {Kate Selway and Stephan Thiel and Kerry Key},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophys-J-Int-2012-Selway.pdf},
year = {2012},
date = {2012-01-01},
journal = {Geophysical Journal International},
volume = {188},
pages = {945--958},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 24. | Ray, Anandaroop; Key, Kerry Bayesian inversion of marine CSEM data with a trans-dimensional self parametrizing algorithm Journal Article Geophysical Journal International, 191 (3), pp. 1135–1151, 2012. Links @article{Ray:2012fk,
title = {Bayesian inversion of marine CSEM data with a trans-dimensional self parametrizing algorithm},
author = {Anandaroop Ray and Kerry Key},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophys-J-Int-2012-Ray.pdf},
year = {2012},
date = {2012-01-01},
journal = {Geophysical Journal International},
volume = {191},
number = {3},
pages = {1135--1151},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 23. | Myer, David; Constable, Steven; Key, Kerry; Glinsky, Michael E; Liu, Guimin Marine CSEM of the Scarborough gas field, Part 1: Experimental design and data uncertainty Journal Article Geophysics, 77 (4), pp. E281–E299, 2012. Links @article{Myer:2012jo,
title = {Marine CSEM of the Scarborough gas field, Part 1: Experimental design and data uncertainty},
author = {David Myer and Steven Constable and Kerry Key and Michael E Glinsky and Guimin Liu},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophysics-2012-Myer.pdf},
year = {2012},
date = {2012-01-01},
journal = {Geophysics},
volume = {77},
number = {4},
pages = {E281--E299},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 22. | Chen, Jinsong; Hoversten, Michael G; Key, Kerry; Nordquist, Gregg; Cumming, William Stochastic inversion of magnetotelluric data using a sharp boundary parameterization and application to a geothermal site Journal Article Geophysics, 77 (4), pp. E265, 2012. Links @article{Chen:2012bp,
title = {Stochastic inversion of magnetotelluric data using a sharp boundary parameterization and application to a geothermal site},
author = {Jinsong Chen and Michael G Hoversten and Kerry Key and Gregg Nordquist and William Cumming},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophysics-2012-Chen.pdf},
year = {2012},
date = {2012-01-01},
journal = {Geophysics},
volume = {77},
number = {4},
pages = {E265},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 21. | Brown, Vanessa; Hoversten, Mike; Key, Kerry; Chen, Jinsong Resolution of reservoir scale electrical anisotropy from marine CSEM data Journal Article Geophysics, 77 (2), pp. E147–E158, 2012. Links @article{Brown:2012iw,
title = {Resolution of reservoir scale electrical anisotropy from marine CSEM data},
author = {Vanessa Brown and Mike Hoversten and Kerry Key and Jinsong Chen},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophysics-2012-Brown-1.pdf},
year = {2012},
date = {2012-01-01},
journal = {Geophysics},
volume = {77},
number = {2},
pages = {E147--E158},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 20. | Key, Kerry Is the fast Hankel transform faster than quadrature? Journal Article Geophysics, 77 (3), pp. F21–F30, 2012. Links @article{Key:2012ku,
title = {Is the fast Hankel transform faster than quadrature?},
author = {Kerry Key},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophysics-2012-Key.pdf},
year = {2012},
date = {2012-01-01},
journal = {Geophysics},
volume = {77},
number = {3},
pages = {F21--F30},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 19. | Brown, Vanessa; Key, Kerry; Singh, Satish Seismically regularized controlled-source electromagnetic inversion Journal Article Geophysics, 77 (1), pp. E57–E65, 2012. Links @article{Brown:2012wx,
title = {Seismically regularized controlled-source electromagnetic inversion},
author = {Vanessa Brown and Kerry Key and Satish Singh},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophysics-2012-Brown.pdf},
year = {2012},
date = {2012-01-01},
journal = {Geophysics},
volume = {77},
number = {1},
pages = {E57–E65},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 18. | Shahin, Alireza; Key, Kerry; Stoffa, Paul; Tatham, Robert Petro-electric modeling for CSEM reservoir characterization and monitoring Journal Article Geophysics, 77 (1), pp. E9–E20, 2012. Links @article{Shahin:2012hx,
title = {Petro-electric modeling for CSEM reservoir characterization and monitoring},
author = {Alireza Shahin and Kerry Key and Paul Stoffa and Robert Tatham},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophysics-2012-Shahin.pdf},
year = {2012},
date = {2012-01-01},
journal = {Geophysics},
volume = {77},
number = {1},
pages = {E9--E20},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 17. | Key, Kerry Marine electromagnetic studies of seafloor resources and tectonics Journal Article Surveys In Geophysics, 33 (1), pp. 135–167, 2012. Links @article{Key:B7OWU_Hn,
title = {Marine electromagnetic studies of seafloor resources and tectonics},
author = {Kerry Key},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Surv-Geophys-2012-Key.pdf},
year = {2012},
date = {2012-01-01},
journal = {Surveys In Geophysics},
volume = {33},
number = {1},
pages = {135--167},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2011
|
| 16. | Key, Kerry; Constable, Steven Coast effect distortion of marine magnetotelluric data: Insights from a pilot study offshore northeastern Japan Journal Article Physics of the Earth Planetary Interiors, 184 (3-4), pp. 194–207, 2011. Links @article{Key:2011jw,
title = {Coast effect distortion of marine magnetotelluric data: Insights from a pilot study offshore northeastern Japan},
author = {Kerry Key and Steven Constable},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/2011-Key-1.pdf},
year = {2011},
date = {2011-02-01},
journal = {Physics of the Earth Planetary Interiors},
volume = {184},
number = {3-4},
pages = {194--207},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 15. | Key, Kerry; Ovall, Jeffrey A parallel goal-oriented adaptive finite element method for 2.5-D electromagnetic modelling Journal Article Geophysical Journal International, 186 (1), pp. 137–154, 2011. Links @article{GJI:GJI5025,
title = {A parallel goal-oriented adaptive finite element method for 2.5-D electromagnetic modelling},
author = {Kerry Key and Jeffrey Ovall},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophys-J-Int-2011-Key.pdf},
year = {2011},
date = {2011-01-01},
journal = {Geophysical Journal International},
volume = {186},
number = {1},
pages = {137--154},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 14. | Myer, David; Constable, Steven; Key, Kerry Broad-band waveforms and robust processing for marine CSEM surveys Journal Article Geophysical Journal International, 184 , pp. 689–698, 2011. Links @article{Myer:2010gy,
title = {Broad-band waveforms and robust processing for marine CSEM surveys},
author = {David Myer and Steven Constable and Kerry Key},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophys-J-Int-2011-Myer.pdf},
year = {2011},
date = {2011-01-01},
journal = {Geophysical Journal International},
volume = {184},
pages = {689--698},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 13. | Zhdanov, Michael S; Wan, Le; Gribenko, Alexander; Cuma, Martin; Key, Kerry; Constable, Steven Large-scale 3D inversion of marine magnetotelluric data: Case study from the Gemini prospect, Gulf of Mexico Journal Article Geophysics, 76 (1), pp. F77–F87, 2011. Links @article{Zhdanov:2011ku,
title = {Large-scale 3D inversion of marine magnetotelluric data: Case study from the Gemini prospect, Gulf of Mexico},
author = {Michael S Zhdanov and Le Wan and Alexander Gribenko and Martin Cuma and Kerry Key and Steven Constable},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophysics-2011-Zhdanov.pdf},
year = {2011},
date = {2011-01-01},
journal = {Geophysics},
volume = {76},
number = {1},
pages = {F77--F87},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2010
|
| 12. | Key, Kerry; Lockwood, Andrew Determining the orientation of marine CSEM receivers using orthogonal Procrustes rotation analysis Journal Article Geophysics, 75 (3), pp. F63–F70, 2010. Links @article{key:F63,
title = {Determining the orientation of marine CSEM receivers using orthogonal Procrustes rotation analysis},
author = {Kerry Key and Andrew Lockwood},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophysics-2010-Key.pdf},
year = {2010},
date = {2010-01-01},
journal = {Geophysics},
volume = {75},
number = {3},
pages = {F63--F70},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2009
|
| 11. | Constable, Steven; Key, Kerry; Lewis, Lisl Mapping offshore sedimentary structure using electromagnetic methods and terrain effects in marine magnetotelluric data Journal Article Geophysical Journal International, 176 (2), pp. 431–442, 2009. Links @article{SDTrough,
title = {Mapping offshore sedimentary structure using electromagnetic methods and terrain effects in marine magnetotelluric data},
author = {Steven Constable and Kerry Key and Lisl Lewis},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophys-J-Int-2009-Constable.pdf},
year = {2009},
date = {2009-01-01},
journal = {Geophysical Journal International},
volume = {176},
number = {2},
pages = {431--442},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 10. | Key, Kerry 1D inversion of multicomponent, multifrequency marine CSEM data: Methodology and synthetic studies for resolving thin resistive layers Journal Article Geophysics, 74 (2), pp. F9–F20, 2009. Links @article{key:F9,
title = {1D inversion of multicomponent, multifrequency marine CSEM data: Methodology and synthetic studies for resolving thin resistive layers},
author = {Kerry Key},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophysics-2009-Key.pdf},
year = {2009},
date = {2009-01-01},
journal = {Geophysics},
volume = {74},
number = {2},
pages = {F9--F20},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 9. | Orange, Arnold; Key, Kerry; Constable, Steven The feasibility of reservoir monitoring using time-lapse marine CSEM Journal Article Geophysics, 74 (2), pp. F21–F29, 2009. Links @article{orange:F21,
title = {The feasibility of reservoir monitoring using time-lapse marine CSEM},
author = {Arnold Orange and Kerry Key and Steven Constable},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophysics-2009-Orange.pdf},
year = {2009},
date = {2009-01-01},
journal = {Geophysics},
volume = {74},
number = {2},
pages = {F21--F29},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2007
|
| 8. | Li, Yuguo; Key, Kerry 2D marine controlled-source electromagnetic modeling: Part 1–An adaptive finite element algorithm Journal Article Geophysics, 72 (2), pp. WA51–WA62, 2007. Links @article{LiKey2007,
title = {2D marine controlled-source electromagnetic modeling: Part 1–An adaptive finite element algorithm},
author = {Yuguo Li and Kerry Key},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophysics-2007-Li.pdf},
year = {2007},
date = {2007-03-01},
journal = {Geophysics},
volume = {72},
number = {2},
pages = {WA51--WA62},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2006
|
| 7. | Key, Kerry; Weiss, Chester Adaptive finite-element modeling using unstructured grids: The 2D magnetotelluric example Journal Article Geophysics, 71 (6), pp. G291–G299, 2006. Links @article{kkey2006,
title = {Adaptive finite-element modeling using unstructured grids: The 2D magnetotelluric example},
author = {Kerry Key and Chester Weiss},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophysics-2006-Key-1.pdf},
year = {2006},
date = {2006-10-01},
journal = {Geophysics},
volume = {71},
number = {6},
pages = {G291--G299},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 6. | Key, Kerry W; Constable, S C; Weiss, C J Mapping 3D salt using the 2D marine magnetotelluric method: Case study from Gemini Prospect, Gulf of Mexico Journal Article Geophysics, 71 (1), pp. B17–B27, 2006. Links @article{kkeyGemini06,
title = {Mapping 3D salt using the 2D marine magnetotelluric method: Case study from Gemini Prospect, Gulf of Mexico},
author = {Kerry W Key and S C Constable and C J Weiss},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophysics-2006-Key.pdf},
year = {2006},
date = {2006-01-01},
journal = {Geophysics},
volume = {71},
number = {1},
pages = {B17--B27},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 5. | Weitemeyer, Karen A; Constable, Steven C; Key, Kerry W; Behrens, James P First results from a marine controlled-source electromagnetic survey to detect gas hydrates offshore Oregon Journal Article Geophysical Research Letters, 33 (3), pp. –, 2006. Links @article{weitemeyer_2006,
title = {First results from a marine controlled-source electromagnetic survey to detect gas hydrates offshore Oregon},
author = {Karen A Weitemeyer and Steven C Constable and Kerry W Key and James P Behrens},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophys-Res-Lett-2006-Weitemeyer.pdf},
year = {2006},
date = {2006-01-01},
journal = {Geophysical Research Letters},
volume = {33},
number = {3},
pages = {--},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2002
|
| 4. | Evans, Rob L; Webb, Spahr C; Crawford, W; Golden, C; Key, Kerry; Lewis, L; Miyano, H; Roosen, E; Doherty, D Crustal resistivity structure at 9 50'N on the East Pacific Rise: results of an electromagnetic survey Journal Article Geophysical Research Letters, 29 (6), pp. 6–1 to 6–4, 2002. Links @article{evans_epr_mmr,
title = {Crustal resistivity structure at 9 50'N on the East Pacific Rise: results of an electromagnetic survey},
author = {Rob L Evans and Spahr C Webb and W Crawford and C Golden and Kerry Key and L Lewis and H Miyano and E Roosen and D Doherty},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophys-Res-Lett-2002-Evans.pdf},
year = {2002},
date = {2002-03-01},
journal = {Geophysical Research Letters},
volume = {29},
number = {6},
pages = {6--1 to 6--4},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| 3. | Key, Kerry; Constable, Steven Broadband marine MT exploration of the East Pacific Rise at 9º50'N Journal Article Geophysical Research Letters, 29 (22), pp. 11–1 to 11–4, 2002. Links @article{eprbbmt,
title = {Broadband marine MT exploration of the East Pacific Rise at 9º50'N},
author = {Kerry Key and Steven Constable},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Geophys-Res-Lett-2002-Key.pdf},
year = {2002},
date = {2002-01-01},
journal = {Geophysical Research Letters},
volume = {29},
number = {22},
pages = {11--1 to 11--4},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
1999
|
| 2. | Heinson, Graham; White, Antony; Constable, Steven; Key, Kerry Marine self potential exploration Journal Article Expl. Geophys., 30 (1/2), pp. 1–4, 1999. Links @article{egj30-01-00010004,
title = {Marine self potential exploration},
author = {Graham Heinson and Antony White and Steven Constable and Kerry Key},
url = {http://emlab.ldeo.columbia.edu/wp-content/uploads/2018/01/Expl.-Geophys.-1999-Heinson.pdf},
year = {1999},
date = {1999-01-01},
journal = {Expl. Geophys.},
volume = {30},
number = {1/2},
pages = {1--4},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
