Deep Electrical Resistivity Tomography - SENECA Project Antarctica

This repository collects all the files of the Deep Electrical Resistivity Tomography (DERT) geophysical survey held in Antarctica (Dry Valleys) on December 2019- January 2020, as part of the SENECA Project (PrincipaI Investigator Livio Ruggiero, INGV, now at ISPRA).

Files in this repository are organized as follows:

The dem folder contains the Lidar xyz digital elevation model of the surveyed area (Fountain et al., 2017) that was used to appropriately model the terrain during the mesh generation step of the data processing.

The field_data folder contains the DERT resistivity/chargeability datasets acquired by using the IRIS Instruments Fullwaver system (12 VFullwaver boxes, 50 meters MN dipoles) and a VIP5000 transmitter used to inject current at TX electrodes. More details on file types can be found in the folder's README file.

The processing folder contains the resistivity inversions files for each profile. More details on file types can be found in the folder's README file.

The topography folder hosts the csv files with the sensor positions for each profile from GPS survey and the processed files with the definitive coordinates of the RX and TX electrodes in the UTM WGS84 coordinate system. The conversion table txt files are also derived: these are used to translate the "dummy" coordinates of the raw datasets to the real positions.

Acknowledgments

This work is part of the PNRA 2018/D3.01 SENECA project and was financially supported by CNR (PNRA 2018 n° 00253 linea D, prot.73633/2019, SENECA PROJECT: Source and origin of greenhouses gases in Antarctica). All the data were collected during the XXXV Italian expedition in Antarctica, we thank PNRA and UTA ENEA for the logistic support. SENECA is a joint project ofinternational cooperation between Italy, New Zealand and Norway. We thank the Antarctica New Zealand for the scientific, logistical and technical support and the Scott Base personnel for hosting our research team. We acknowledge the support of the Research Council of Norway (NFR) through the HOTMUD project number 288299 and its Centres of Excellence funding scheme, projectnumber 223272 (CEED). 

Credits

Jacob Anderson: data acquisition, data interpretation

Massimiliano Ascani: data acquisition

Bob Dagg: data acquisition

Federico Fischanger: survey design, data processing and interpretation

Richard Hardie: data acquisition

Matteo Lupi: conceptual developement, data interpretation

Adriano Mazzini: data acquisition

Claudio Mazzoli: data acquisition

Valentina Romano: survey design, data collection, data processing and interpretation

Livio Ruggiero: principal Investigator of the SENECA project.

Alessandra Sciarra: data collection

Maria Chiara Tartarello: data collection 

Gary Wilson: data collection, data interpretation

Rachel Worthington: data collection 

References:

Fountain, A.G., Fernandez-Diaz, J.C., Obryk, M., Levy, J., Gooseff, M., Van Horn, D.J., Morin, P., & Shrestha, R., (2017), High resolution elevation mapping of the McMurdo Dry Valleys, Antarctica, and surrounding regions, Earth Syst. Sci. Data, 9, 435-443.