Wave fetch GIS layer for Orkney at 22m resolution

This data layer gives values of summed wave fetch in 32 angular sectors around focal cells, using a model modified from that given in Burrows et al (2012 - see reference). Wave fetch is the distance to the nearest land in a defined direction. The model performs a three-scale search for land around each cell in the model, sparsely (every 4.4km) up to 200km, every 440m up to 20km away, and every 22m up to 220m distant.