GLADIOLUS is any of several species of showy flowering herbs of the iris family (Iridaceae). It has broad flat leaves that resemble the blades of swords. The long, straight stalk and lily-like blossoms make the gladiolus one of the most handsome flowers grown for garden and house decoration. Native to South Africa, Asia, and Europe, the species of wild gladiolus have been hybridized and selected by plant breeders in Europe and the United States so that hundreds of different varieties are now known.
The Jet Stream. How the earth's rotation the effects the west to east direction of the jet stream. Jet streams are relatively narrow bands of strong wind in the upper levels of the atmosphere. The winds blows from west to east in jet streams but the flow often shifts to the north and south. Jet streams follow the boundaries between hot and cold air. Since these hot and cold air boundaries are most pronounced in winter, jet streams are the strongest for both the northern and southern hemisphere winters.
The jet stream flows at around 160kmph (100mph). We often hear that the jet stream is responsible for influencing the weather in the UK, so it is natural to wonder what causes the jet stream and why it has such an influence on the weather we experience on the ground.he strongest areas of the jet stream are known as jet streaks. These are areas where the jet stream has increased in speed by as much as 100kmph. A typical jet streak is 160km wide, 2-3 km thick and lasting several hundred km in length.