Jet Stream

The jet is a relatively narrow air current, and moves wavy between the northern hemisphere and the southern hemisphere of the earth. It can be compared with the "river" of fast moving wind. The width of the jet is about 100 to 400 miles (161 to 644 kilometers) and the thickness is 1 to 3 miles (1.6 to 8 kilometers). In the troposphere, the strongest wind is usually about 30,000 feet (9,144 meters) high. Jet wind speed is normally 150 to 300 miles per hour (241 to 482 kilometers per hour), but the recorded speed is up to 450 miles per hour (724 kilometers per hour). Its general behavior is from west to east. However, there is also a tropical eastward jet that occurs during the summer. Rapid started at the top of the troposphere near Myanmar and spread to the west about 6,000 miles (10,000 km) west of Africa. The most extreme temperature difference occurs in the narrowest part of the flow

The jet moves frequently and in fact moves with the season. Sometimes two streams flow through the United States. One flows along the north border and the other flows to the south. The flight distance of the aircraft flying rapidly downwind increased sharply. A pilot that is expected to fly highlands or long distances is trying to find a place of flow and use it for his own benefit.

For decades, meteorologists have studied jets and studied how they affect air mass movements. The exact relationship is yet to be understood, but meteorologists agree that the torrent may act as a barrier between the cold air in the north and the warm air in the south. During bending, the flow allows some cold air to flow south and warm air to flow north. These flows certainly affect the formation of cold air masses.

Since the jet is an air mass distributor, the movement of the jet in the south or north moves hot air further north or south relative to the shift. By understanding the motion of the jet, the meter can predict the movement of warm air and cold air, and movement of high pressure and low pressure system. Tracking these moves can predict serious weather events, disasters such as droughts and floods. Predicting these events in a timely and accurate manner makes it possible for the affected countries to receive humanitarian assistance and protect their wealth.

This jet stands for "tropospheric pole jet", it moves at high speed in the atmosphere where weather occurs and the jet fly. This jet is formed along the boundary between warm air and cold air and becomes more prominent in the winter when the northern hemisphere and air masses of midlatitude form strong contrast with each other. The polar vortex or stratospheric jet is a broad area of ​​low pressure and cold that surrounds the poles of the earth. For example, in the cold winter of 2013/2014 and 2014/2015, you can send the cold Arctic air to Central and Eastern United States, Texas, Mississippi and Alabama. In the winter, the expansion and movement of the polar vortex occurs to various degrees.

Polar jets are formed by air movement. These movements are related to the cold front. The cold front separates the air before the cold from the north and the warm moist air separates from the south. Extreme rapid flow plays a role in the development of storm and tends to cause storm. Steering is the reflection of a very strong air mass (such as a jet). Subtropical jets tend to develop during the winter and are formed by the movement of tropical and subtropical air related to the severe temperature gradient in the middle troposphere. It usually involves a period of intense convection rainfall. It is weak, it does not cause a whirlwind of transition. This rapid flow helps the occurrence and suppression of storms and disturbances. Typically, the jet contains jet fringes due to wind portions higher than the surrounding wind speed due to a strong temperature gradient.