Spencer-space/Io_Tidal: IoTidal v1.1.0

The software pertaining to the publication Spencer et al (2020), "Tidal controls on the lithospheric thickness and topography of Io from magmatic segregation and volcanism modelling". Contact dan.spencer@earth.ox.ac.uk with any questions

This version uses the three-dimensional tidal heating distribution to calculate a suite of columns, which are then averaged and the structure iterated back into the heating calculation. This increases computation time significantly, but has negligible effect. It is probably more rigorous though.