Electromagnetic Alaskan GeoPRISMS Experiment (EMAGE)
Click here to see our blog with stories and photos from the research cruise during May-June 2019.
This project uses new marine electromagnetic (EM) imaging technology to study the fluid content of the crust and mantle along the Semidi and...
Hikurangi Trench Regional Electromagnetic Survey to Image the Subduction Thrust (HT-RESIST)
Click here to see our blog with stories and photos from the successful field campaign!
In mid-December 2018, we set sail onboard the R/V Roger Revelle in the waters east of North Island, New Zealand to carry out a marine EM survey of the Hikurangi subd...
SALSA EM: Mapping Subglacial Groundwater in Antarctica
Photos, videos and text by Kerry Key
During November 2018 to January 2019 we carried out an extensive geophysical survey on the Whillans Ice Stream in West Antarctica. Our survey is the first to use magnetotelluric (MT) imaging to map subglacial ...
Freshwater Beneath the US Atlantic Continental Shelf
In 2015 we conducted a pilot study of large-scale electromagnetic (EM) surveying of offshore groundwater at locations off New Jersey and Martha’s Vineyard. EM methods remotely measure bulk electrical conductivity, which is strongly a function of groundwater s...
Anisotropy and Physics of the Pacific Lithosphere Experiment (APPLE)
This project examines electrical anisotropy in the oceanic crust and mantle in the Northeastern Pacific arising from crustal cracking and paleo-mantle flow. Check out our newly published reanalysis of the controlled-source electromagnetic (CSEM) data...
Magnetotelluric and Seismic Investigations of Okmok Volcano
This project uses geophysical techniques to characterize the magmatic system beneath Okmok volcano in the Aleutian island arc. In the summer of 2015, amphibious magnetotelluric (MT) data and onshore passive seismic data were collected to tes...
Magnetotelluric Observations of Cascadia using a Huge Array (MOCHA)
This is a collaborative project to image details of convergent margin segmentation and the distribution of fluids associated with the subducting slab using combined onshore and offshore magnetotelluric (MT) data in Oregon and Washington. This data will...
Serpentinite, Extension and Regional Porosity Experiment across the Nicaraguan Trench (SERPENT)
This project is the first to use controlled-source electromagnetic (CSEM) imaging to image the fluid content of the incoming plate and forearc crust at a subduction zone. In 2010 we collected broadband magnetotelluric (MT) and CSEM data along a 300 km...
East Pacific Rise at 9ºN
In February 2004 we carried out an extensive EM survey across the Northern East Pacific Rise near 9º30' N. The goals of this experiment were to image the upper mantle and crustal magmatic system associated with plate spreading volcanism at this fast-spreading m...
Bayesian Inversion of EM Data
coming soon...
Adaptive Finite Element Modeling and Inversion of EM Data
MARE2DEM: Modeling with Adaptively Refined Elements for 2D Electromagnetics
MARE2DEM is an open-source parallel adaptive finite element code for 2D forward and inverse modeling of EM data including magnetotelluric, controlled-source EM and DC resistivity...