With the aid of an extensive data set, collected at the Alsvik wind farm in Sweden, analytical expressions for the relative velocity deficit and the added turbulence of the flow generated by the wind ...

image: Kīlauea lava lake, 2014. The lake surface is spattering in the bright area on the right. This spattering is associated with a source of seismic energy - or 'volcanic tremor' - which is used as ...