Bowheight

Bowheight is a reckoning of a stead's whereabouts on the husk of the Earth, and tells of one's farness from the evenring. It is reckoned from 0 notches, at the evenring, to ninety notches, at each pole. Lands with low bowheights, such as Africa, are hot and get much sunlight, while lands with high bowhights, such as Siberia, are cold and dark.