VizieR Online Data Catalog: Disturbance storm time index; 1903 Sun outburst (Hayakawa+, 2020)

We aimed to provide a comprehensive view of the extreme storm of 1903 October 31. The related interplanetary coronal mass ejection (ICME) hit the magnetosphere ~28hr after the main flare, with the shock being recorded in the magnetograms of Coimbra and Colaba as a strong SSC around 5:30 GMT on October 31. In addition, the interplanetary magnetic field (IMF) was strongly southward as suggested by the great storm recorded by magnetograms of four observatories at mid-MLATs (Coimbra in Portugal, Cuajimalpa in Mexico, Colaba in India, and Zi-ka-wei in China); their coordinates can be found in table1. On this basis, an alternative Dst' time series has been reconstructed for the 1903 storm.

(2 data files).