Magnetotelluric data for the Halloween 2003 magnetic storm in the vicinity of Uppsala and Eskdalemuir geomagnetic observatories (synthesized using geomagnetic observatory data from INTERMAGNET)

Abstract

Magnetotelluric data for the Halloween 2003 magnetic storm in the vicinity of Uppsala (UPS), Sweden and Eskdalemuir (ESK), Scotland geomagnetic observatories synthesized from geomagnetic observatory data from INTERMAGNET. The data were generated to facilitate comparison of the ground effects of the Halloween 2003 magnetic storm in Sweden and Scotland. The data demonstrate the greater risk of hazardous storm-time electric fields being generated in southern Sweden compared to central Scotland and are further described in the gold open access paper: F. Simpson and K. Bahr, 2020a. The role of tectonic-plate thickness and mantle conductance in determining regional vulnerability to extreme space weather events: possible enhancement of magnetic source fields by secondary induction in the asthenosphere. Space Weather, https://doi.org/10.1029/2020SW002587 The synthesis technique that enables electric fields to be estimated from geomagnetic observatory data is described and validated in the following gold open access papers: https://doi.org/10.1051/swsc/2020049. https://doi.org/10.1029/2019SW002432.