Hibiscus rosa-sinensis to use its full name is a herbal premium loose leaf tea made with an infusion of crimson and magenta fresh or dried calyces.ame. Hibiscus rosa-sinensis to use its full name is a herbal premium loose leaf tea made with an infusion of crimson and magenta fresh or dried calyces. It goes by many names around the world Roselle, Rosella, Agua de Jamaica, Karkade, Arhul ka phool and of course Hibiscus Sabdariffa.
Definitions of ocean current. 1. (oceanography) a warm ocean current that flows along the equator from the date line and south off the coast of Ecuador at Christmas time. any of the ocean currents that flow westward at the equator.
Deep ocean currents are driven by density and temperature gradients. Thermohaline circulation is also known as the ocean's conveyor belt (which refers to deep ocean density driven ocean basin currents). These currents, called submarine rivers, flow under the surface of the ocean and are hidden from immediate detection. Where significant vertical movement of ocean currents is observed, this is known as upwelling and downwelling.