Cyclonic Circulation : Rotation that is counter-clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. Opposite of anticyclonic
Natural and Environmental Disaster Information Exchange System European Commission NEDIES, Glossary of Hurricane Terms - Canada Geological Survey - Natural Resources, Directorate General Joint Research Centre DG JRC, Institute for the Protection and Security of the Citizen (IPSC), Varese, Italy 2011. http://www.ns.ec.gc.ca/weather/hurricane/hurricane s9.html, (ND/ Hurr Sci - Amer) {153}