Data users should refer to the following publication to best acquaint themselves with the data set. Jonathan Lees, Principle Investigator. Tang, C., Rial, J.A., and Lees, J.M., 2008 Seismic Imaging of the Geothermal Field at Krafla, Iceland Using Shear-wave Splitting: Journal of Volcanology and Geothermal Research, 176(2), 315-324. doi:10.1016/j.jvolgeores.2008.04.017.