Ground-based magnetic local time dependent Pc5 ULF index dataset (latitudes 60-70)

This ULF index is constructed from 1-minute ground-based magnetic field observations provided by SuperMAG. The index is derived for the horizontal (H), north (N) and east (E) magnetic field components from magnetometers on the northern hemisphere between corrected geomagnetic latitudes 60-70 and divided into four MLT sectors. The index is available from January 1996 to December 2008 for this latitude range. The index is given in monthly files with following naming convention: Pc5_MLTd_index_LAT_60_70_YYYYMM_COMPONENT.dat where the H component files lack the COMPONENT part of the file name. Data formatting: date: YYYY-MM-DD time: hh:mm:ss P: Pc5 index in a given sector (nT^2)N: number of SuperMAG stations used to calculate the index Definition of MLT sectors:Day: 6-18 MLTNight: 18-6 MLTDawn: 3-9 MLTNoon: 9-15 MLTDusk: 15-21 MLTMidnight: 21-3 MLT Full is the global average over all stations. The script for calculating the index is available in Zenodo.