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jet-plane-moves-in-which-layer-of-atmosphere-key This site does not include all credit card companies or all available credit card offers. We also know that, in the northern hemisphere, lyer moves anticlockwise around areas of low pressure and clockwise around areas of high pressure. When going westbound, the routes keep aircraft out of the strongest headwinds. Bihar first state to have ethanol promotion policybihar has become the 1st iet of the country Read more. Traveling at high altitudes also means that airplanes can avoid bad weather that is typically found in the lower regions of the atmosphere.

As late as , British Airways put the figure at between 15 and 20 per cent. Aircraft emissions probably play a crucial role in ozone destruction by fuelling the formation of polar stratospheric clouds. Tiny particles in these frozen clouds provide surfaces on which the critical chemical reactions take place that destroy ozone. The clouds are made either of water or nitric acid, derived from the nitrogen oxides.

Both NOx and water vapour are thrown out by jet engines. And in the lower stratosphere, where the ozone destruction is concentrated, this figure may rise to 60 per cent.

Aircraft engines also discharge an estimated 80 million tonnes of water vapour into the stratosphere every year. At temperate latitudes in the northern hemisphere, air traffic has increased the amount of water vapour in the lower stratosphere by about 10 per cent over the past thirty years. While excluding aircraft from the stratosphere may improve conditions there, one key question is what damage lower flight paths would do to the troposphere. Emissions of NOx here do not destroy ozone, but create it.

Recent studies suggest that aircraft generate their own version of the photochemical smog that Jet Plane Moves In Which Layer Of Atmosphere Rec motor vehicles create at ground level. This ozone will help to compensate for any losses in stratospheric ozone, but at the cost of causing global warming. Ozone within the troposphere is an increasingly important greenhouse gas, stopping infrared radiation escaping to space.

While aircraft produce only about 3 per cent of the NOx in the troposphere, NOx at this altitude stays around longer than at ground level — several Jet Plane Moves In Which Layer Of Atmosphere Twitter days rather than a few minutes or hours.

Robert Egli, a consultant in atmospheric chemistry from Schaff-hausen, Switzerland, argues that aircraft emissions could cause up to 8 per cent of the warming caused by greenhouse gases. Water vapour emitted by aircraft is also a powerful greenhouse gas. A molecule of water is two hundred times more effective at trapping radiation from Earth than a molecule of carbon dioxide. In addition, around the tropopause the air is close to saturation with water and a small increase of vapour from aircraft can create wide expanses of thin cirrus clouds that cause even stronger warming.

The problem about where aircraft should fly for optimum environmental protection is further complicated because, when flying at lower levels, aircraft burn more fuel. This is partly because the air is thinner and partly because modern aircraft, with small swept-back wings, are designed for optimum performance in the stratosphere. Imposing a ban on flying in the stratosphere would increase the total output of NOx and other pollutants from aircraft by about 7 per cent, according to Lufthansa.

Even so, last summer Peper said that the stratosphere might be most at risk from emissions. While NOx may stay longer in the upper troposphere than at ground level, it lasts even longer — up to a year — in the stratosphere. Peper estimated the likely impact of rigid restrictions on flying at particular heights. Helicopters and light aircraft typically fly in the troposphere. Light aircrafts are unable to operate at higher altitudes because they lack pressurized cabins.

Therefore, they stay within a range of about 10, feet. Flying to higher altitudes would require pilots to wear functional oxygen masks to avoid losing consciousness. Commercial aircraft Jet Plane Moves In Which Layer Of Atmosphere Login typically prefer to travel in the stratosphere which has less turbulence and air traffic.

Flying in the stratosphere also means that pilots have more time to handle the difficult situation compared to those flying at lower altitudes. Around the world, numerous regulations govern low safe altitudes in which aircraft can travel. The laws mainly apply to light aircraft as opposed to airliners.

Generally, it is considered unlawful to fly below 1, feet in an area with buildings and feet above any vehicle, person, or structure. Sir Isaac Newton first presented his three laws of Jet Plane Moves In Which Layer Of Atmosphere Android motion in the "Principia Mathematica Philosophiae Naturalis" in His first law states that every object remains at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.

This is normally taken as the definition of inertia. The key point here is that if there is no net force resulting from unbalanced forces acting on an object if all the external forces cancel each other out , then the object maintains a constant velocity.

If that velocity is zero, then the object remains at rest. And if an additional external force is applied, the velocity changes because of the force. An aircraft in flight is a particularly good example of the first law of motion. There are four major forces acting on an aircraft; lift, weight, thrust, and drag.

If we consider the motion of an aircraft at a constant altitude, we can neglect the lift and weight. A cruising aircraft flies at a constant airspeed and the thrust exactly balances the drag of the aircraft.

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