IL24 index

<p>The IL24 index is computed by using 24 magnetometer station <span>from Sodankyl&auml; Geophysical Observatory in Finland (SOD), Tromso Geophysical Observatory in Norway (TRO), Abisco in Sweden, and magnetic observations collected by INTERMAGNET and IMAGE. The stations from north to south are the following: NOR, SOR, KEV, TRO, MAS, AND, KIL, IVA, MUO, KIR, SOD, PEL, RAN, JCK, RST, DON, RVK, OUJ, MEK, HAN, DOB, SOL, NUR and KAR. </span></p>