Pole-to-pole intercomparison of the Global Electric Circuit (GEC) ...

• Main Author: Lavigne, Thomas
• Format: Article in Journal/Newspaper
• Language: English
• Published: DMPHub 2023
• Subjects: Antarctic; Arctic; South Pole; The Antarctic; Antarc*; South pole
• Online Access: https://dx.doi.org/10.48321/d1ss69; https://dmphub.cdlib.org/dmps/doi:10.48321/D1SS69

This three-year project aims to establish a Campbell Scientific CS110 electric field meter in the Antarctic at both the South Pole and McMurdo Stations. In coordination with a currently funded NSF proposal, which supports the same instruments deployed in the Arctic (AGS-2219639), this project would provide a unique prospective of the Global Electric Circuit (GEC) from both poles simultaneously, with the same instruments calibrated in the exact manner. The project aims to first intercompare the simultaneously measured fair-weather vertical electric field at the two Antarctic sites with varying elevations on the sub hourly, hourly, diurnal, seasonal, and interannual timescales. Furthermore, observing the sub hourly, hourly, diurnal, seasonal, and interannual variability of the GEC system from both poles would provide direct evidence as to the true global nature of the system. By incorporating a very strictly selected fair-weather definition of the vertical electric field, representing the GEC, we plan to ...