![]() ![]() Argon, carbon dioxide, and traces of other gases make up the remaining 1 percent. Nitrogen accounts for 78 percent of the gases that comprise the atmosphere, while oxygen makes up 21 percent. This blanket of gases provides protection from ultraviolet rays as well as supporting human, animal, and plant life on the planet. The atmosphere is a mixture of gases that surround the Earth. It is important to note, however, that there is no substitute for experience. The following pages are designed to help pilots acquire the background knowledge of aviation weather principles necessary to develop sound decision making skills relating to weather. The most famous is the Mount Everest Banner Cloud with powerful momentum.Whether preparing for a local flight or a long cross-country, flight-planning decisions based on aviation weather can dramatically affect the safety of the flight.Ī solid understanding of aviation weather theory provides the tools necessary to understand the reports and forecasts obtained from a Flight Service Station aviation weather specialist and other aviation weather services. It is said that for Tibetans, the banner cloud is just like the Buddha’s light or mirage, which indicates good luck and fortune. In Tibet, the banner cloud is a symbol of luck. If the banner cloud rolls up like smoke from kitchen chimneys, it also indicates the weather will become worse. When the banner cloud points to north, it means that it is going to snow heavily. When the west wind blows on the mountain, the cloud will point east. It can also infer the weather on Mount Everest. Hence, the Mount Everest banner cloud is reputed as “the highest wind indicator in the world”. ![]() ![]() When the banner cloud floating high and upwards over the peak, it means the wind force is slow when the cloud floating low and down dip, it means the wind force is strong when the banner cloud floating parallel to the sea level, the wind force is about at ninth level. The banner cloud could be a wind vane and infer the wind force level on the summit of Mount Everest.Īccording to its height and location, one can infer the wind force on the summit of Mount Everest. When the cloud floating above the peak, strong west wind blows it to point to East and forms the Banner cloud waving on the summit. Then the sun came out, the rubbles surface become hot quickly, the warm air goes upwards along the slop, and condense to be cloud when the warm air near the summit. Scientists found that on Mount Everest, at the plateau below the altitude of 7000m, there are covered with ice and snow, while above 7000m, there are rubbles. The banner cloud is formed because of the special landform of Mount Everest. Occasionally, you can see the highland eagle flying above the banner cloud which embellishes the infinite scenery of the perilous peak. The shapes of the banner clouds are varied, sometimes like the surging waves, and sometimes like the galloping horses. These banner clouds are convective cumulus clouds. When the weather is clear and sunny, there are often floating banner clouds over Mount Everest. The cloud is floating like waving banners, hence got the name, banner cloud. However, what tourists most interested in are the floating cloud above Mount Everest. Mount Everest is so amazing with the mount peak hiding in the cloud and its dazing ice world attracts tourists from all over the world. ![]()
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