Compass Rose 2 : A circle graduated in degrees, marked on the ground at an airport. It is used in calibrating aircraft compass systems to magnetic north
Ilan Kelman (ed.), Vulnerability and Resilience Definitions and References, Version 2, 2007. http://www.islandvulnerability.org/docs/vulnres.pd f, (Vulnr and Resilience - Brit) {524}